CN110314925A - A kind of refuse landfill original position aerobic stabilization processing unit and processing method - Google Patents
A kind of refuse landfill original position aerobic stabilization processing unit and processing method Download PDFInfo
- Publication number
- CN110314925A CN110314925A CN201910680838.2A CN201910680838A CN110314925A CN 110314925 A CN110314925 A CN 110314925A CN 201910680838 A CN201910680838 A CN 201910680838A CN 110314925 A CN110314925 A CN 110314925A
- Authority
- CN
- China
- Prior art keywords
- gas
- well
- gas injection
- controller
- blower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012545 processing Methods 0.000 title claims abstract description 53
- 230000006641 stabilisation Effects 0.000 title claims abstract description 42
- 238000011105 stabilization Methods 0.000 title claims abstract description 42
- 238000003672 processing method Methods 0.000 title claims 2
- 238000002347 injection Methods 0.000 claims abstract description 116
- 239000007924 injection Substances 0.000 claims abstract description 116
- 230000007246 mechanism Effects 0.000 claims abstract description 99
- 238000000605 extraction Methods 0.000 claims abstract description 94
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000000034 method Methods 0.000 claims abstract description 29
- 238000010276 construction Methods 0.000 claims abstract description 25
- 238000009423 ventilation Methods 0.000 claims abstract description 21
- 238000005086 pumping Methods 0.000 claims description 48
- 239000010813 municipal solid waste Substances 0.000 claims description 43
- 238000012544 monitoring process Methods 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 238000010926 purge Methods 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 18
- 238000009412 basement excavation Methods 0.000 abstract description 16
- 238000011065 in-situ storage Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 244000005700 microbiome Species 0.000 abstract description 3
- 230000002503 metabolic effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 191
- 238000009826 distribution Methods 0.000 description 12
- 239000000203 mixture Substances 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 206010019233 Headaches Diseases 0.000 description 6
- 238000004332 deodorization Methods 0.000 description 6
- 238000012216 screening Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 238000005273 aeration Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 239000003673 groundwater Substances 0.000 description 3
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 3
- 230000007269 microbial metabolism Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 210000000476 body water Anatomy 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009270 solid waste treatment Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
本发明涉及一种垃圾填埋场原位好氧稳定化处理装置及处理方法，包括均匀分布、配合垃圾填埋场设置的若干处置井，处置井包括若干配合连接至抽气处理机构的抽气井和若干配合连接有注气处理机构的注气井，抽气处理机构和注气处理机构连接至控制器；处理装置还包括与控制器配合的水位控制机构。本发明快速降低堆体内部甲烷浓度及恶臭气体浓度，确保安全开挖和文明施工，降低堆体含水量、优化好氧微生物代谢环境，提高通风预处理的效果与效率；通过快速钻井‑系统快速安装‑快速抽气/注气，在短时间内实现换气。本发明现场使用方便，操作灵活，对场地的适应性好，真正消除污染物，更具环境安全性，建井周期短、建井成本低，提高生产效率，减少检修率。
The invention relates to an in-situ aerobic stabilization treatment device and treatment method for a landfill site, including a number of disposal wells that are evenly distributed and set up in conjunction with the landfill site, and the disposal wells include a number of air extraction wells that are matched and connected to an air extraction treatment mechanism A number of gas injection wells are connected with a gas injection processing mechanism, and the gas extraction processing mechanism and the gas injection processing mechanism are connected to the controller; the processing device also includes a water level control mechanism that cooperates with the controller. The invention quickly reduces the concentration of methane and odorous gas inside the pile, ensures safe excavation and civilized construction, reduces the water content of the pile, optimizes the metabolic environment of aerobic microorganisms, and improves the effect and efficiency of ventilation pretreatment; Installation‑Quick air extraction/injection to achieve air changes in a short time. The invention is convenient to use on site, flexible in operation, good in site adaptability, truly eliminates pollutants, more environmentally safe, short in well construction period, low in well construction cost, improves production efficiency, and reduces maintenance rate.
Description
技术领域technical field
本发明属于水、废水、污水、污泥或固废的处理的技术领域，特别涉及一种固体垃圾处理领域的垃圾填埋场原位好氧稳定化处理装置及处理方法。The invention belongs to the technical field of treatment of water, waste water, sewage, sludge or solid waste, and in particular relates to an in-situ aerobic stabilization treatment device and treatment method of a landfill in the field of solid waste treatment.
背景技术Background technique
垃圾是不被需要或无用的固体、流体物质。在人口密集的大城市，垃圾处理是一个令人头痛的问题。我国现存1600余座卫生填埋场以及23000余座简易填埋场，普遍面临着恶臭、污染严重、渗滤液产生量大、垃圾成分复杂、生物降解缓慢、封场后维护周期长等问题，如果不加以科学治理，这些存量垃圾将会对周边地下水、地表水、土壤、大气以及民众健康造成持续威胁。Garbage is unwanted or useless solid and fluid matter. In densely populated cities, garbage disposal is a headache. There are more than 1,600 sanitary landfills and more than 23,000 simple landfills in China, which generally face problems such as odor, serious pollution, large amount of leachate, complex garbage components, slow biodegradation, and long maintenance periods after closure. Without scientific treatment, these stockpiles of garbage will pose a continuous threat to the surrounding groundwater, surface water, soil, atmosphere and public health.
垃圾筛分以及资源化是目前处理存量垃圾最常用的方法，但是由于我国的垃圾填埋场普遍存在含水率高、有机物高、热值低的基本特征，如果用于焚烧，需要添加辅助燃料，这势必会增加处理成本，另外不同垃圾组分之间易于黏连的特性也不适于直接机械筛选。Garbage screening and recycling are currently the most commonly used methods to deal with existing garbage. However, due to the basic characteristics of high moisture content, high organic matter, and low calorific value in my country's landfills, if they are used for incineration, auxiliary fuel needs to be added. This will inevitably increase the processing cost, and the characteristics of easy adhesion between different garbage components are not suitable for direct mechanical screening.
近年来有学者研究利用通风对流加速好氧微生物降解有机质、减少CH4和H2S气体排放，这种方式有利于降低堆体含水率同时提高垃圾低位热值，可以减少二次污染危害，有利于后续进一步的处理，如专利申请号为CN108213052A的发明专利“一种用于陈腐垃圾分选好氧预处理装置及方法”提到利用纵向延伸、等距分布的曝气管线对垃圾堆体进行通风曝气，该专利采用异位处理方式，存在曝气时间较久的问题，且首先需对垃圾进行开挖堆成条剁，开挖过程存在臭气和甲烷气扩散的风险，且增加处理成本。专利号ZL200510011155.6的发明专利“快速降解固体垃圾的方法”涉及使用抽注气管网对固体垃圾进行通风处理并通过温控系统对堆体温湿度进行监测，该专利没有考虑到由于堆体含水率高而造成管线易堵塞的问题以及如何处置气流带出的污染尾气的问题，其主要对垃圾进行原位好氧稳定化处理，周期一般需要1.5-2.5年，不能应用于开挖筛分场地的快速通风预处理。In recent years, some scholars have studied the use of ventilation and convection to accelerate the degradation of organic matter by aerobic microorganisms and reduce the emission of CH 4 and H 2 S gas. This method is beneficial to reduce the moisture content of the pile and increase the low calorific value of the waste, which can reduce the harm of secondary pollution. Facilitate further subsequent processing, such as the patent application number CN108213052A "A kind of aerobic pretreatment device and method for stale garbage sorting" mentions the use of longitudinally extending, equidistantly distributed aeration pipelines to carry out the treatment of garbage piles. Ventilation and aeration. This patent adopts an off-site treatment method, which has the problem of a long aeration time. First, the garbage needs to be excavated and piled up into strips. There is a risk of odor and methane gas diffusion during the excavation process, and additional treatment is required. cost. The invention patent of the patent number ZL200510011155.6 "method of rapidly degrading solid waste" involves the use of suction and injection pipe network to ventilate the solid waste and monitor the temperature and humidity of the pile through the temperature control system. The problem of high pipeline blockage and how to deal with the pollution tail gas brought out by the air flow is mainly to carry out in-situ aerobic stabilization treatment on the garbage. The cycle generally takes 1.5-2.5 years and cannot be applied to excavation and screening sites. Rapid ventilation preconditioning.
发明内容Contents of the invention
本发明解决了现有技术中，垃圾含水率高以及堆体内含氧量不足而导致的填埋场内垃圾降解缓慢、恶臭污染严重、传统通风曝气方法易堵井、通风不彻底、建井周期长的问题，提供了一种优化的垃圾填埋场原位好氧稳定化处理装置及处理方法。The invention solves the problem of slow degradation of garbage in the landfill, serious odor pollution caused by high moisture content of garbage and insufficient oxygen content in the pile in the prior art, and the traditional ventilation and aeration method is easy to block the well, the ventilation is not thorough, and the well construction is difficult. To solve the problem of long period, an optimized in-situ aerobic stabilization treatment device and treatment method for landfills are provided.
本发明所采用的技术方案是，一种垃圾填埋场原位好氧稳定化处理装置，所述原位好氧稳定化处理装置配合垃圾填埋场设置，所述原位好氧稳定化处理装置包括均匀分布设于垃圾填埋场内的若干处置井，所述处置井包括若干抽气井和若干注气井，任一所述抽气井配合连接至抽气处理机构，任一所述注气井配合连接有注气处理机构，所述抽气处理机构和注气处理机构连接至控制器；所述处理装置还包括与控制器配合的水位控制机构。The technical solution adopted in the present invention is an in-situ aerobic stabilization treatment device for a landfill, the in-situ aerobic stabilization treatment device is set up in conjunction with the landfill, and the in-situ aerobic stabilization treatment The device includes a number of disposal wells evenly distributed in the landfill, the disposal wells include a number of gas extraction wells and a number of gas injection wells, any of the gas extraction wells is connected to the gas extraction treatment mechanism, and any of the gas injection wells is coordinated A gas injection treatment mechanism is connected, and the air extraction treatment mechanism and the gas injection treatment mechanism are connected to the controller; the treatment device also includes a water level control mechanism cooperating with the controller.
优选地，所述抽气处理机构包括与任一抽气井连接的抽气分配装置，所述抽气分配装置的出口顺次连接有气液分离装置和抽气风机，所述抽气风机连接至控制器。Preferably, the air extraction treatment mechanism includes an air extraction distribution device connected to any air extraction well, the outlet of the air extraction distribution device is connected with a gas-liquid separation device and an air extraction fan in sequence, and the air extraction fan is connected to controller.
优选地，所述抽气风机的出口连接有尾气处理机构；所述尾气处理机构的出口处连接有气体成分在线监测仪器，所述气体成分在线监测仪器连接至三通阀的一端，所述三通阀的另两端分别连接至尾气处理机构和排气口，所述三通阀通过回气风机连接至尾气处理机构；所述气体成分在线监测仪器和三通阀连接至控制器。Preferably, the outlet of the exhaust fan is connected with an exhaust gas treatment mechanism; the outlet of the exhaust gas treatment mechanism is connected with a gas composition online monitoring instrument, and the gas composition online monitoring instrument is connected to one end of a three-way valve, and the three-way The other two ends of the through valve are respectively connected to the tail gas treatment mechanism and the exhaust port, and the three-way valve is connected to the tail gas treatment mechanism through the return air fan; the gas composition online monitoring instrument and the three-way valve are connected to the controller.
优选地，所述注气处理机构包括与任一注气井顺次连接的注气分配装置和注气风机，所述注气风机连接至控制器。Preferably, the gas injection treatment mechanism includes a gas injection distribution device and a gas injection blower sequentially connected to any gas injection well, and the gas injection blower is connected to a controller.
优选地，任意2个所述处置井间的距离为L，10m≤L≤20m；任一所述处置井的井长为H，4m≤H≤10m；任一所述处置井的井壁上设有若干通风孔。Preferably, the distance between any two disposal wells is L, 10m≤L≤20m; the well length of any of the disposal wells is H, 4m≤H≤10m; There are several ventilation holes.
优选地，所述水位控制机构包括配合垃圾填埋场设置的若干抽水井，所述抽水井底部设有水位监测器，所述抽水井配合设有抽水泵，所述水位监测器和抽水泵分别连接至控制器。Preferably, the water level control mechanism includes several pumping wells arranged in conjunction with the landfill site, a water level monitor is provided at the bottom of the pumping well, and a pump is provided in conjunction with the pumping well, and the water level monitor and the pump are respectively Connect to controller.
优选地，所述处理装置还包括若干连接至控制器的移动空气压缩机，所述移动空气压缩机通过压力传感器与处置井配合设置。Preferably, the processing device further includes several mobile air compressors connected to the controller, and the mobile air compressors are set in cooperation with the disposal well through pressure sensors.
优选地，所述若干处置井配合设有若干温度传感器，所述温度传感器连接至控制器。Preferably, the several disposal wells are equipped with several temperature sensors, and the temperature sensors are connected to the controller.
一种采用所述的垃圾填埋场原位好氧稳定化处理装置的处理方法，所述方法包括以下步骤：A treatment method using the in-situ aerobic stabilization treatment device of the landfill site, the method comprises the following steps:
步骤1：确定垃圾填埋场中需处理的垃圾堆体，划定处理区域，确定好氧稳定化处理深度；Step 1: Determine the waste dumps to be treated in the landfill, delineate the treatment area, and determine the depth of aerobic stabilization treatment;
步骤2：对于位于地下水位以下的地块，在对应的处理区域四周建设止水帷幕或并排的抽水井，止水帷幕的深度大于好氧稳定化处理深度，在抽水井底部设置水位监测器，抽水井配合设置抽水泵，进行降水作业；Step 2: For plots below the groundwater level, build water-stop curtains or side-by-side pumping wells around the corresponding treatment area. The depth of the water-stop curtain is greater than the depth of aerobic stabilization treatment. Set up water level monitors at the bottom of the pumping wells. The pumping well is equipped with a pump to carry out dewatering operations;
步骤3：若水位监测器测得好氧稳定化处理区域的液位高于处理深度，控制器控制抽水泵进行抽水，直至水位降至处理深度以下1m，控制器控制抽水泵停止运行，否则，直接进行下一步；Step 3: If the water level monitor detects that the liquid level in the aerobic stabilization treatment area is higher than the treatment depth, the controller controls the water pump to pump water until the water level drops to 1m below the treatment depth, and the controller controls the water pump to stop running, otherwise, Go directly to the next step;
步骤4：降水完成后，根据设计的间距，在处理区域安装抽气井、注气井，并配合抽气井设置抽气处理机构、配合注气井设置注气处理机构，完成管路连接、设备调试；Step 4: After the dewatering is completed, according to the designed spacing, install gas extraction wells and gas injection wells in the treatment area, and set up a gas extraction treatment mechanism with the gas extraction well, and a gas injection treatment mechanism with the gas injection well, and complete the pipeline connection and equipment debugging;
步骤5：管路畅通后，控制器控制启动抽气处理机构，抽气处理机构运行时间T后，控制器控制启动注气处理机构，使得垃圾填埋场的地下气体实现定向流动；Step 5: After the pipeline is unblocked, the controller controls to start the gas extraction treatment mechanism, and after the operation time T of the gas extraction treatment mechanism, the controller controls the start of the gas injection treatment mechanism, so that the underground gas in the landfill site can realize directional flow;
步骤6：控制器分别将抽气风机与抽气井的压力传感器、注气风机与注气井的压力传感器进行联锁；当抽气井的头部负压P1≤X1时，控制器调整抽气风机的频率为A，当抽气井的头部负压X1<P1≤X2时，控制器调整抽气风机的频率为B，当抽气井的头部负压X2<P1≤X3，控制器调整抽气风机的频率为C，其中， 0≤X1<-10，-10≤X2<-15，-15≤X3<-20，30≤A<50，15≤B<30，5≤C<15，X1、X2和X3的单位为KPa，A、B和C的单位为Hz；当注气井的头部压力P2≤Y1，控制器调整注气风机的频率为D，当注气井的头部压力Y1＜P2≤Y2时，控制器调整注气风机的频率为E，当注气井的头部压力Y2＜P2≤Y3时，控制器调整注气风机的频率为F，其中，0≤Y1<30，30≤Y2<60，60≤Y3<80，35≤D<50，20≤E<35，0≤F<20，Y1、Y 2和Y 3的单位为KPa，D、E和F的单位为Hz；Step 6: The controller interlocks the air extraction fan with the pressure sensor of the air extraction well, and the air injection fan with the pressure sensor of the air injection well; when the head negative pressure P 1 ≤ X 1 of the air extraction well, the controller adjusts the air extraction The frequency of the fan is A. When the negative pressure at the head of the extraction well X 1 <P 1 ≤X 2 , the controller adjusts the frequency of the exhaust fan to B. When the negative pressure at the head of the extraction well X 2 <P 1 ≤X 3. The controller adjusts the frequency of the exhaust fan to C, where, 0≤X 1 <-10, -10≤X 2 <-15, -15≤X 3 <-20, 30≤A<50, 15≤B <30, 5≤C<15, the unit of X 1 , X 2 and X 3 is KPa, the unit of A, B and C is Hz; when the head pressure of gas injection well P 2 ≤ Y 1 , the controller adjusts the gas injection The frequency of the fan is D. When the head pressure of the gas injection well Y 1 <P 2 ≤Y 2 , the controller adjusts the frequency of the gas injection fan to be E. When the head pressure of the gas injection well Y 2 <P 2 ≤Y 3 , the controller adjusts the frequency of the air injection fan to F, where, 0≤Y 1 <30, 30≤Y 2 <60, 60≤Y 3 <80, 35≤D<50, 20≤E<35, 0≤F <20, the units of Y 1 , Y 2 and Y 3 are KPa, and the units of D, E and F are Hz;
步骤7：抽气风机出口的尾气处理机构对抽出的有机废气进行处置；Step 7: The exhaust gas treatment mechanism at the outlet of the exhaust fan disposes the extracted organic waste gas;
步骤8：通过尾气处理机构出口的气体成分在线监测仪器实时监测尾气成分；当各项数据均符合标准，控制器控制三通阀的开口朝向排气口，气体外排，进行下一步；当监测数据未达到排放标准值，控制器控制三通阀的开口朝向尾气处理机构，控制器控制回气风机将未达标气体送至尾气处理机构，返回步骤7；Step 8: Monitor the tail gas composition in real time through the gas composition online monitoring instrument at the outlet of the tail gas treatment mechanism; when all the data meet the standards, the controller controls the opening of the three-way valve to the exhaust port, and the gas is discharged to the next step; when monitoring If the data does not reach the emission standard value, the controller controls the opening of the three-way valve to face the exhaust gas treatment mechanism, and the controller controls the return air fan to send the unqualified gas to the exhaust gas treatment mechanism, and return to step 7;
步骤9：判断是否完成处置，若是则进行下一步，否则，返回步骤6；Step 9: Determine whether the disposal is completed, if so, proceed to the next step, otherwise, return to step 6;
步骤10：处置合格，进行设备拆卸和转移，进入下一待处置区域。Step 10: After the disposal is qualified, dismantle and transfer the equipment, and enter the next area to be disposed.
优选地，所述步骤6中，若抽气井或注气井的流量小于设计流量的十分之一时，控制器控制抽气风机或注气风机停止运行，同时开启空气压缩机对抽气井或注气井进行清孔吹扫工作。Preferably, in the step 6, if the flow rate of the gas extraction well or the gas injection well is less than one-tenth of the designed flow rate, the controller controls the exhaust fan or the gas injection fan to stop running, and at the same time, the air compressor is turned on for the gas extraction well or injection well. Gas wells are cleaned and purged.
本发明提供了一种优化的垃圾填埋场原位好氧稳定化处理装置及处理方法，通过为垃圾填埋场配合设置预处理装置，通过均匀分布设于垃圾填埋场内的若干抽气井和若干注气井作为处置井，分别配合连接抽气处理机构和注气处理机构，通过输氧抽气的稳定化措施，快速降低堆体内部甲烷浓度以及硫化氢等恶臭气体的浓度，确保安全开挖和文明施工，并通过水位控制机构，以科学合理的技术方法降低堆体含水量、优化好氧微生物代谢所需环境，提高通风预处理的效果与效率；区别于市面上的好氧稳定化方案，本发明在开挖前将垃圾堆体转化为好氧环境，降低甲烷浓度和恶臭气体浓度，有利于垃圾安全开挖，可以通过快速钻井-系统快速安装-快速抽气/注气，在短时间内实现换气。The present invention provides an optimized in-situ aerobic stabilization treatment device and treatment method for the landfill site. By cooperating with the pretreatment device for the landfill site, a number of gas extraction wells are evenly distributed in the landfill site. And a number of gas injection wells are used as disposal wells, which are respectively connected to the gas extraction treatment mechanism and the gas injection treatment mechanism. Through the stabilization measures of oxygen delivery and gas extraction, the concentration of methane and hydrogen sulfide and other odorous gases inside the pile can be quickly reduced to ensure safe excavation. And civilized construction, and through the water level control mechanism, use scientific and reasonable technical methods to reduce the water content of the pile, optimize the environment required for aerobic microbial metabolism, and improve the effect and efficiency of ventilation pretreatment; different from the aerobic stabilization scheme on the market , the invention converts the garbage dump into an aerobic environment before excavation, reduces the concentration of methane and odorous gas, and is conducive to the safe excavation of garbage. It can be quickly drilled-system quick installation-quick pumping/injection, in a short time To achieve ventilation in time.
本发明具有如下有益效果：The present invention has following beneficial effects:
（1）采用输氧抽气的稳定化预处理的方式，对垃圾堆中的填埋气进行抽出收集处理工作，对于尾气处理机构、抽气处理机构、注气处理机构和控制器等机构均采用撬装式，设备间采用快速接头进行连接，现场使用方便，操作灵活，模块化设备可根据项目工程量大小和周期要求灵活调整处置能力；(1) Adopt the stable pretreatment method of oxygen delivery and pumping to extract, collect and treat the landfill gas in the garbage dump. Skid-mounted, the equipment is connected by quick connectors, easy to use on site, flexible to operate, and the modular equipment can flexibly adjust the disposal capacity according to the project volume and cycle requirements;
（2）无需对垃圾堆体进行开挖及其他工作，可随时根据场地的实际情况进行设备及管路的调整，对场地的适应性好；(2) There is no need to excavate the garbage dump and other work, and the equipment and pipelines can be adjusted at any time according to the actual situation of the site, which has good adaptability to the site;
（3）尾气处理机构可以实现有机尾气、恶臭、无机物有效处置，真正消除污染物，更具环境安全性；(3) The tail gas treatment mechanism can realize the effective disposal of organic tail gas, stench, and inorganic substances, truly eliminate pollutants, and be more environmentally safe;
（4）可以采用夯机方式进行抽气井和注气井的建设，相比传统的钻孔建井方式周期短、建井成本低，更适用于开挖筛分场地的快速预处理施工；(4) The construction of gas extraction wells and gas injection wells can be carried out by means of tamping machines, which is more suitable for rapid pretreatment construction of excavation and screening sites, compared with the traditional drilling and well construction method, which has a shorter cycle time and lower well construction costs;
（5）以水位控制机构配合其他有效控制处置井有效的机构，实现对地下井管风孔的有效清理及性能检测，无须将井管拉出，有效提高了生产的效率，减少了检修率。(5) The water level control mechanism cooperates with other effective mechanisms for effectively controlling and disposing of wells to realize effective cleaning and performance testing of underground well pipe air holes without pulling out the well pipe, effectively improving production efficiency and reducing maintenance rates.
附图说明Description of drawings
图1为本发明的结构示意图，箭头为处理过程中气体的流动方向；Fig. 1 is a structural representation of the present invention, and arrow is the flow direction of gas in the process;
图2为本发明中处置井由打桩机建井的结构示意图，左侧处置井正在建井或撤井中，右侧处置井处于工作状态，处置井可以为抽气井或注气井；Fig. 2 is the structural representation that disposal well is built well by piling machine among the present invention, and disposal well on the left side is in building well or withdrawing well, and disposal well on the right side is in working state, and disposal well can be gas extraction well or gas injection well;
图3为本发明中省略抽气处理机构和注气处理机构后、尾气处理机构和水位控制机构的局部结构示意图，箭头为处理过程中气体的流动方向。Fig. 3 is a schematic diagram of the partial structure of the tail gas treatment mechanism and the water level control mechanism after omitting the air extraction treatment mechanism and the gas injection treatment mechanism in the present invention, and the arrows indicate the flow direction of the gas during the treatment process.
具体实施方式Detailed ways
下面结合实施案例对本发明做进一步的详细描述，但本发明的实施范围并不限于此。The present invention will be further described in detail below in conjunction with examples, but the implementation scope of the present invention is not limited thereto.
本发明涉及一种垃圾填埋场原位好氧稳定化处理装置，所述原位好氧稳定化处理装置配合垃圾填埋场1设置，所述原位好氧稳定化处理装置包括均匀分布设于垃圾填埋场1内的若干处置井，所述处置井包括若干抽气井2和若干注气井3，任一所述抽气井2配合连接至抽气处理机构，任一所述注气井3配合连接有注气处理机构，所述抽气处理机构和注气处理机构连接至控制器；所述处理装置还包括与控制器配合的水位控制机构。The invention relates to an in-situ aerobic stabilization treatment device for a garbage landfill site. The in-situ aerobic stabilization treatment device is arranged in conjunction with a garbage landfill site 1, and the in-situ aerobic stabilization treatment device includes uniformly distributed equipment. Several disposal wells in the landfill 1, the disposal wells include several gas extraction wells 2 and some gas injection wells 3, any of the gas extraction wells 2 is connected to the gas extraction treatment mechanism, and any of the gas injection wells 3 is coordinated A gas injection treatment mechanism is connected, and the air extraction treatment mechanism and the gas injection treatment mechanism are connected to the controller; the treatment device also includes a water level control mechanism cooperating with the controller.
本发明中，在垃圾填埋场1的任一个待修复地块均匀分布设置若干抽气井2和若干注气井3作为处置井，若干抽气井2和若干注气井3分别配合连接抽气处理机构和注气处理机构；一则通过输氧抽气的稳定化措施，快速降低垃圾堆体内部甲烷浓度以及硫化氢等恶臭气体的浓度，确保安全开挖和文明施工；二则可以通过1.5~2.5年的、长期的好氧稳定化处理，缩短垃圾堆体有机质自然降解进程，在有限的时间内实现垃圾堆体稳定化，使得垃圾堆体内填埋物有机质含量、填埋气体浓度、恶臭、堆体沉降等指标达到相关用地要求。In the present invention, a plurality of gas extraction wells 2 and a plurality of gas injection wells 3 are evenly distributed in any block to be repaired in the landfill 1 as disposal wells, and the plurality of gas extraction wells 2 and the plurality of gas injection wells 3 are respectively connected with the gas extraction processing mechanism and Gas injection treatment mechanism; one is to quickly reduce the concentration of methane inside the garbage dump and the concentration of odorous gases such as hydrogen sulfide through the stabilization measures of oxygen delivery and gas extraction, so as to ensure safe excavation and civilized construction; the other is to pass 1.5 to 2.5 years , Long-term aerobic stabilization treatment, shorten the natural degradation process of organic matter in the garbage dump, and realize the stabilization of the garbage dump in a limited time, so that the content of organic matter in the landfill in the garbage dump, the concentration of landfill gas, odor, and the settlement of the dump and other indicators to meet the relevant land use requirements.
本发明中，进一步地，通过水位控制机构，以科学合理的技术方法降低垃圾堆体含水量、优化好氧微生物代谢所需环境、提高通风预处理的效果与效率。In the present invention, further, through the water level control mechanism, the water content of the garbage dump is reduced by scientific and reasonable technical methods, the environment required for aerobic microbial metabolism is optimized, and the effect and efficiency of ventilation pretreatment are improved.
本发明中，抽气井2和注气井3可以以打桩机4建井，成本低，速度快，适用于开挖垃圾的快速响应要求，不仅可以用于以换气为目的的垃圾开挖前的通风换气预处理，一般7-10天完成换气后，甲烷和抽气浓度达到要求，可以实施开挖，更可以用于以垃圾降解为目的的好氧稳定化处理，工期约为1.5-2.5年。In the present invention, the gas extraction well 2 and the gas injection well 3 can be built with the piling machine 4, which is low in cost and fast in speed, and is suitable for the rapid response requirements of excavating garbage, and can not only be used for the excavation of garbage for the purpose of ventilation. Ventilation and ventilation pretreatment, generally after 7-10 days to complete the ventilation, the concentration of methane and air extraction can meet the requirements, and excavation can be implemented, and it can also be used for aerobic stabilization treatment for the purpose of garbage degradation. The construction period is about 1.5- 2.5 years.
所述抽气处理机构包括与任一抽气井2连接的抽气分配装置5，所述抽气分配装置5的出口顺次连接有气液分离装置6和抽气风机7，所述抽气风机7连接至控制器。Described air extraction treatment mechanism comprises the air extraction distribution device 5 that is connected with any air extraction well 2, and the outlet of described air extraction distribution device 5 is connected with gas-liquid separation device 6 and air extraction blower 7 in sequence, and described air extraction blower 7 Connect to the controller.
所述抽气风机7的出口连接有尾气处理机构8；所述尾气处理机构8的出口处连接有气体成分在线监测仪器9，所述气体成分在线监测仪器9连接至三通阀10的一端，所述三通阀10的另两端分别连接至尾气处理机构8和排气口11，所述三通阀10通过回气风机12连接至尾气处理机构8；所述气体成分在线监测仪器9和三通阀10连接至控制器。The outlet of the exhaust fan 7 is connected with a tail gas treatment mechanism 8; the outlet of the tail gas treatment mechanism 8 is connected with a gas composition online monitoring instrument 9, and the gas composition online monitoring instrument 9 is connected to one end of a three-way valve 10, The other two ends of the three-way valve 10 are respectively connected to the tail gas treatment mechanism 8 and the exhaust port 11, and the three-way valve 10 is connected to the tail gas treatment mechanism 8 through the air return fan 12; the gas composition online monitoring instrument 9 and The three-way valve 10 is connected to the controller.
所述注气处理机构包括与任一注气井3顺次连接的注气分配装置13和注气风机14，所述注气风机14连接至控制器。The gas injection treatment mechanism includes a gas injection distribution device 13 connected in sequence to any gas injection well 3 and a gas injection fan 14, and the gas injection fan 14 is connected to a controller.
本发明中，抽气风机7和注气风机14均为耐腐蚀防爆的变频风机，变频风机可有效降低能耗，减小对设备的损耗，减少运行成本。In the present invention, both the exhaust fan 7 and the air injection fan 14 are corrosion-resistant and explosion-proof frequency conversion fans, which can effectively reduce energy consumption, reduce equipment loss, and reduce operating costs.
本发明中，抽气处理机构包括抽气分配装置5、气液分离装置6和抽气风机7，注气处理机构包括注气分配装置13和注气风机14，其中，抽气井2与抽气风机7间、注气井3与注气风机14之间均按三级管线连接，管线直接铺设在垃圾堆体上，解决由于抽气井2和注气井3的数量较多而导致区域注气量或抽气量不足的问题，具体来说，一级管线连接风机、二级管线连接一级管线和分配装置、三级管线连接分配装置和处置井。In the present invention, the air extraction treatment mechanism includes an air extraction distribution device 5, a gas-liquid separation device 6 and an air extraction fan 7, and the gas injection treatment mechanism includes an air injection distribution device 13 and an air injection fan 14, wherein the air extraction well 2 and the air extraction The 7 fans, the gas injection well 3 and the gas injection fan 14 are all connected by three-stage pipelines, and the pipelines are directly laid on the garbage dump to solve the problem of regional gas injection volume or pumping due to the large number of gas extraction wells 2 and gas injection wells 3. The problem of insufficient gas volume, specifically, the first-level pipeline is connected to the fan, the second-level pipeline is connected to the first-level pipeline and the distribution device, and the third-level pipeline is connected to the distribution device and the disposal well.
本发明中，气液分离器6设进气口和出气口，进气口与抽气井2管线连接，出气口由抽气风机7与尾气处理机构8连接。In the present invention, the gas-liquid separator 6 is provided with an air inlet and an air outlet, the air inlet is connected to the gas extraction well 2 pipelines, and the air outlet is connected to the tail gas treatment mechanism 8 by the air extraction fan 7 .
本发明中，一般情况下，气液分离器6底部设置排污口15，排污口15可收集渗滤液送至渗滤液处理区。In the present invention, generally, the bottom of the gas-liquid separator 6 is provided with a sewage outlet 15, and the sewage outlet 15 can collect leachate and send it to the leachate treatment area.
本发明中，零部件之间以管线连接，并配合设置阀门，通过抽注气方式及阀门的切换，抽注气系统可灵活切换，避免处置井的堵塞，加强快速通风预处理的处理效果。In the present invention, the components are connected by pipelines, and valves are set in cooperation. Through the switching of the gas pumping and injection mode and the valves, the gas pumping and injection system can be switched flexibly, avoiding the blockage of the disposal well, and enhancing the treatment effect of rapid ventilation pretreatment.
本发明中，尾气处理机构8不局限于生物除臭装置22和活性炭装置23，可根据堆体气体成分灵活调整，如采用火炬和光催化装置，本领域技术人员可以依据需求自行设置，此调整不影响本发明的应用。In the present invention, the tail gas treatment mechanism 8 is not limited to the biological deodorization device 22 and the activated carbon device 23, and can be flexibly adjusted according to the gas composition of the pile. affect the application of the present invention.
本发明中，当尾气处理机构8为两级生物除臭塔和一级活性碳罐时，生物除臭塔包含三层填料，其中，第一层与第二层分别填装弹性球，第三层填装绳状填料，以活性碳罐作为活性炭装置23连接生物除臭塔，可将臭气中残余的有机气体吸附去除。In the present invention, when the tail gas treatment mechanism 8 is a two-stage biological deodorization tower and a one-stage activated carbon tank, the biological deodorization tower contains three layers of fillers, wherein the first layer and the second layer are respectively filled with elastic balls, and the third layer is filled with elastic balls. The layers are filled with rope-like fillers, and the activated carbon tank is used as the activated carbon device 23 to connect to the biological deodorization tower, which can absorb and remove the residual organic gases in the odor.
本发明中，生物除臭塔为结合了生物洗涤、生物滴滤和生物过滤法三种生物技术的新型复合生物除臭装置22，含气体导入口和排出口，臭气经导入口进入洗涤区，经水或浓度化学洗液洗涤，在洗涤区完成对臭气的水域化学剂的吸收、除尘及加湿的预处理，生物滤床过滤区将污染物从气相中转移到生物膜表面，生物膜表面可将污染物吸收降解；活性炭装置23可将臭气中残余有机气体吸附去除。In the present invention, the biological deodorization tower is a new composite biological deodorization device 22 that combines three biological technologies of biological washing, biological trickling and biological filtration, and contains a gas inlet and an outlet, and the odor enters the washing area through the inlet. , after washing with water or concentrated chemical lotion, the pretreatment of absorption, dust removal and humidification of odorous water chemical agents is completed in the washing area, and the biological filter bed filter area transfers pollutants from the gas phase to the surface of the biofilm, and the biofilm The surface can absorb and degrade pollutants; the activated carbon device 23 can absorb and remove residual organic gases in the odor.
本发明中，以气体成分在线监测仪器9对排出的气体进行检测，若检测合格，则通过三通阀10的排气口11排出，若检测不合格，则通过三通阀10的回流口通过回气风机12送回尾气处理机构8继续处理。In the present invention, the discharged gas is detected by the gas component on-line monitoring instrument 9. If the detection is qualified, it will be discharged through the exhaust port 11 of the three-way valve 10. If the detection is unqualified, it will pass through the return port of the three-way valve 10. The return air fan 12 is sent back to the tail gas treatment mechanism 8 to continue processing.
任意2个所述处置井间的距离为L，10m≤L≤20m；任一所述处置井的井长为H，4m≤H≤10m；任一所述处置井的井壁上设有若干通风孔16。The distance between any two disposal wells is L, 10m≤L≤20m; the length of any disposal well is H, 4m≤H≤10m; there are several ventilation holes 16.
本发明中，处置井均采用钢管材质。In the present invention, the disposal wells are all made of steel pipes.
本发明中，抽气井2和注气井3的井头均设置H型钢，采用直夯机和打桩机4进行抽气井2和注气井3的建设工作，建井周期1-5min，相比传统钻孔建井7-10d的建井和养护周期，节省成本和施工周期。In the present invention, the wellheads of the gas extraction well 2 and the gas injection well 3 are all provided with H-shaped steel, and the construction work of the gas extraction well 2 and the gas injection well 3 is carried out by using a direct compaction machine and a pile driver 4, and the well construction period is 1-5min. The well construction and maintenance period of 7-10 days for hole construction saves cost and construction period.
所述水位控制机构包括配合垃圾填埋场1设置的若干抽水井17，所述抽水井17底部设有水位监测器18，所述抽水井17配合设有抽水泵19，所述水位监测器18和抽水泵19分别连接至控制器。Described water level control mechanism comprises some pumping wells 17 that cooperate with refuse landfill 1 to arrange, and the bottom of described pumping wells 17 is provided with water level monitor 18, and described pumping well 17 is equipped with pumping pump 19, and described water level monitor 18 and water pump 19 are respectively connected to the controller.
本发明中，抽水泵19通过PVC管连接至渗滤液储存、处理装置，当水位监测器18监测到水位过高时，通过抽水泵19进行抽水操作。In the present invention, the water pump 19 is connected to the leachate storage and treatment device through a PVC pipe, and when the water level monitor 18 detects that the water level is too high, the water pump 19 is used for pumping operation.
本发明中，水位控制机构通过合理布设的抽水井17削减垃圾堆体渗滤液；一般情况下，抽水井17采用优质耐腐蚀碳钢，并与高强度耐腐蚀抽水泵19连接。In the present invention, the water level control mechanism reduces the leachate of the garbage dump through the rationally arranged pumping wells 17; generally, the pumping wells 17 are made of high-quality corrosion-resistant carbon steel, and are connected with a high-strength corrosion-resistant pump 19.
所述处理装置还包括若干连接至控制器的移动空气压缩机20，所述移动空气压缩机20通过压力传感器21与处置井配合设置。The treatment device also includes several mobile air compressors 20 connected to the controller, and the mobile air compressors 20 are arranged in cooperation with the treatment well through pressure sensors 21 .
本发明中，移动空气压缩机20产生的高压空气可以对处置井上的通风孔16进行清洁，防止堵井。In the present invention, the high-pressure air generated by the mobile air compressor 20 can clean the ventilation hole 16 on the disposal well to prevent the well from being blocked.
所述若干处置井配合设有若干温度传感器24，所述温度传感器24连接至控制器。The several disposal wells are matched with several temperature sensors 24, and the temperature sensors 24 are connected to the controller.
本发明中，温度传感器24通用于实时监测反馈布点的温度变化，通过温度的变化反馈好氧生物反应情况。In the present invention, the temperature sensor 24 is generally used for real-time monitoring of the temperature change of the feedback distribution point, and feeds back the aerobic biological reaction situation through the temperature change.
本发明中，温度传感器24还可以集成湿度传感器，同时监测处置井内的温度和湿度。In the present invention, the temperature sensor 24 can also be integrated with a humidity sensor to simultaneously monitor the temperature and humidity in the disposal well.
本发明中，所有的连接管线选用PU、PVC等软管直接铺设在垃圾堆体上，方便现场安装；管路采用耐腐蚀不易老化的材质，体现了系统长时间安全可靠的特点。In the present invention, all the connecting pipelines are laid directly on the garbage dump by using flexible pipes such as PU and PVC, which is convenient for on-site installation; the pipelines are made of corrosion-resistant and non-aging materials, which reflects the long-term safety and reliability of the system.
本发明中，以压力传感器21、水位监测器18、温度传感器24和气体成分在线监测仪器9完成对整体装置的监控。In the present invention, the monitoring of the whole device is completed with the pressure sensor 21 , the water level monitor 18 , the temperature sensor 24 and the gas component on-line monitoring instrument 9 .
本发明还涉及一种采用所述的垃圾填埋场原位好氧稳定化处理装置的处理方法，通过向垃圾填埋场1的垃圾堆体进行输氧抽气的稳定化预处理，降低垃圾堆体含水率，迅速将垃圾堆体由厌氧状态转化为好氧状态，提高好氧微生物代谢活性，减少堆体内部甲烷及恶臭气体浓度，确保安全开挖。The present invention also relates to a treatment method using the above-mentioned in-situ aerobic stabilization treatment device in the landfill site, by carrying out the stabilization pretreatment of feeding oxygen and extracting gas to the garbage dump in the garbage landfill site 1, reducing the amount of waste dump The moisture content of the waste can be quickly converted from an anaerobic state to an aerobic state, improving the metabolic activity of aerobic microorganisms, reducing the concentration of methane and odorous gases inside the pile, and ensuring safe excavation.
所述方法包括以下步骤。The method includes the following steps.
步骤1：确定垃圾填埋场1中需处理的垃圾堆体，划定处理区域，确定好氧稳定化处理深度。Step 1: Determine the waste dumps to be treated in landfill 1, delineate the treatment area, and determine the depth of aerobic stabilization treatment.
本发明中，在垃圾堆体内快速通风预处理工程按照80m×50m的布局设置预处理单元，同时考虑到场地垃圾平面及空间分布情况，采取分区分层进行施工。In the present invention, the rapid ventilation pretreatment project in the garbage dump body is provided with pretreatment units according to the layout of 80m×50m, and at the same time, taking into account the garbage plane and spatial distribution of the site, the construction is carried out by division and layering.
步骤2：对于位于地下水位以下的地块，在对应的处理区域四周建设止水帷幕或并排的抽水井17，止水帷幕的深度大于好氧稳定化处理深度，在抽水井17底部设置水位监测器18，抽水井17配合设置抽水泵19，进行降水作业。Step 2: For plots located below the groundwater level, build water-stop curtains or side-by-side pumping wells 17 around the corresponding treatment area, the depth of the water-stop curtain is greater than the depth of aerobic stabilization treatment, and set water level monitoring at the bottom of the pumping wells 17 Device 18, pumping well 17 coordinates and arranges pumping pump 19, carries out dewatering operation.
步骤3：若水位监测器18测得好氧稳定化处理区域的液位高于处理深度，控制器控制抽水泵19进行抽水，直至水位降至处理深度以下1m，控制器控制抽水泵19停止运行，否则，直接进行下一步。Step 3: If the water level monitor 18 detects that the liquid level in the aerobic stabilization treatment area is higher than the treatment depth, the controller controls the water pump 19 to pump water until the water level drops to 1m below the treatment depth, and the controller controls the water pump 19 to stop running , otherwise, go directly to the next step.
本发明中，优选在修复区域周围设置并排的抽水井17进行抽水，通过抽水井17的抽水作用避免外部水体进入堆体内部。In the present invention, it is preferable to set side-by-side pumping wells 17 around the repaired area for pumping, and the pumping effect of the pumping wells 17 prevents external water from entering the pile.
步骤4：降水完成后，根据设计的间距，在处理区域安装抽气井2、注气井3，并配合抽气井2设置抽气处理机构、配合注气井3设置注气处理机构，完成管路连接、设备调试。Step 4: After the dewatering is completed, according to the designed spacing, install the gas extraction well 2 and the gas injection well 3 in the treatment area, and set up the gas extraction treatment mechanism with the gas extraction well 2, and the gas injection treatment mechanism with the gas injection well 3, and complete the pipeline connection, Equipment debugging.
本发明中，处置井的管径为De50~90，井管长度为3~8m，开孔长度2~7m，由技术人员根据现场情况进行相应调整。In the present invention, the pipe diameter of the disposal well is De50-90, the length of the well pipe is 3-8m, and the length of the opening is 2-7m, which shall be adjusted by technicians according to the site conditions.
本发明中，抽水井17的建设和抽气井2、注气井3的建设既可以同时施工，也可先后施工，但抽气及注气的具体实施需在降水达到要求后进行。In the present invention, the construction of the pumping well 17 and the construction of the gas pumping well 2 and the gas injection well 3 can be constructed at the same time or successively, but the specific implementation of the gas pumping and gas injection needs to be carried out after the precipitation meets the requirements.
本发明中，处置井的建设采用打夯成井工艺，成井前，机械打压机的臂手夹紧处置井的井管上端，并使打压机与井管重心在同一直线上，机械打压机夹紧井管吊起，井管尖头对准放样点位，待井管稳定、位置正确并垂直后，再振动下沉；井管没下沉1-2m左右，停振检测井管的垂直度，发现偏差及时纠正。In the present invention, the construction of the disposal well adopts the technique of ramming the well. Before the well is completed, the arm of the mechanical press clamps the upper end of the well pipe of the disposal well, and makes the center of gravity of the press and the well pipe on the same straight line, and the mechanical press clamps the upper end of the well pipe of the disposal well. The well pipe is hoisted, and the tip of the well pipe is aligned with the stakeout point. After the well pipe is stable, the position is correct and vertical, it will then vibrate and sink; The deviation is corrected in time.
本发明中，处置井与连接的抽气处理机构和注气处理机构之间采用PU管进行连接，保持系统密闭。In the present invention, the disposal well is connected with the connected gas extraction treatment mechanism and gas injection treatment mechanism with PU pipes to keep the system airtight.
本发明中，还需要在修复区域上的处置井外覆膜，保证处理环境的稳定，气体不外溢。In the present invention, it is also necessary to cover the outside of the disposal well on the repaired area to ensure the stability of the treatment environment and prevent the gas from overflowing.
步骤5：管路畅通后，控制器控制启动抽气处理机构，抽气处理机构运行时间T后，控制器控制启动注气处理机构，使得垃圾填埋场1的地下气体实现定向流动。Step 5: After the pipeline is unblocked, the controller controls to start the gas extraction processing mechanism. After the gas extraction processing mechanism has been running for T , the controller controls to start the gas injection processing mechanism, so that the underground gas in the landfill 1 realizes directional flow.
本发明中，T可以设置为5分钟，或本领域技术人员根据需求进行设置。In the present invention, T can be set to 5 minutes, or can be set by those skilled in the art according to requirements.
步骤6：控制器分别将抽气风机7与抽气井2的压力传感器21、注气风机14与注气井3的压力传感器21进行联锁；当抽气井2的头部负压P1≤X1时，控制器调整抽气风机7的频率为A，当抽气井2的头部负压X1<P1≤X2时，控制器调整抽气风机7的频率为B，当抽气井2的头部负压X2<P1≤X3，控制器调整抽气风机7的频率为C，其中，0≤X1<-10，-10≤X2<-15，-15≤X3<-20，30≤A<50，15≤B<30，5≤C<15，X1、X2和X3的单位为KPa，A、B和C的单位为Hz；当注气井3的头部压力P2≤Y1，控制器调整注气风机14的频率为D，当注气井3的头部压力Y1＜P2≤Y2时，控制器调整注气风机14的频率为E，当注气井3的头部压力Y2＜P2≤Y3时，控制器调整注气风机14的频率为F，其中，0≤Y1<30，30≤Y2<60，60≤Y3<80，35≤D<50，20≤E<35，0≤F<20，Y1、Y 2和Y 3的单位为KPa，D、E和F的单位为Hz。Step 6: The controller interlocks the exhaust fan 7 with the pressure sensor 21 of the gas extraction well 2, and the gas injection fan 14 with the pressure sensor 21 of the gas injection well 3; when the head negative pressure P 1 of the gas extraction well 2 ≤ X 1 , the controller adjusts the frequency of the exhaust fan 7 to be A; when the head negative pressure X 1 <P 1 ≤ X 2 of the exhaust well 2 , the controller adjusts the frequency of the exhaust fan 7 to be B; when the negative pressure of the exhaust well 2 Head negative pressure X 2 <P 1 ≤X 3 , the controller adjusts the frequency of the exhaust fan 7 to C, where 0≤X 1 <-10, -10≤X 2 <-15, -15≤X 3 < -20, 30≤A<50, 15≤B<30, 5≤C<15, the unit of X 1 , X 2 and X 3 is KPa, the unit of A, B and C is Hz; when the head of gas injection well 3 When the internal pressure P 2 ≤ Y 1 , the controller adjusts the frequency of the gas injection fan 14 to D, when the head pressure Y 1 <P 2 ≤ Y 2 of the gas injection well 3, the controller adjusts the frequency of the gas injection fan 14 to E, When the head pressure Y 2 <P 2 ≤Y 3 of the gas injection well 3, the controller adjusts the frequency of the gas injection fan 14 to F, where 0≤Y 1 <30, 30≤Y 2 <60, 60≤Y 3 <80, 35≤D<50, 20≤E<35, 0≤F<20, the unit of Y 1 , Y 2 and Y 3 is KPa, and the unit of D, E and F is Hz.
所述步骤6中，若抽气井2或注气井3的流量小于设计流量的十分之一时，控制器控制抽气风机7或注气风机14停止运行，同时开启空气压缩机20对抽气井2或注气井3进行清孔吹扫工作。In the step 6, if the flow rate of the air extraction well 2 or the gas injection well 3 is less than one-tenth of the design flow rate, the controller controls the air extraction fan 7 or the air injection fan 14 to stop running, and simultaneously opens the air compressor 20 to the air extraction well. 2 or gas injection well 3 for hole cleaning and purging.
本发明中，自动控制系统控制注气风机14电机、抽气风机7电机启动；注气风机14电机控制注气风机14开启，抽气风机7电机控制抽气风机7开启；注气风机14运行时，外界空气通过注气管道进入垃圾堆体内部，抽气风机7运行时，垃圾堆体内部空气通过抽气管道抽离垃圾堆体；通过注气风机14、抽气风机7、注气管道、抽气管道的联合作用运行，实现垃圾堆体内部的快速换气。控制机构控制抽气风机7电机，抽气井2的压力传感器21与抽气风机7联锁，抽气风机7频率随抽气井2的压力大小进行自动调整。In the present invention, the automatic control system controls the gas injection blower 14 motors and the exhaust blower 7 motors to start; the gas injection blower 14 motor controls the gas injection blower 14 to open, and the exhaust blower 7 motor controls the exhaust blower 7 to open; the gas injection blower 14 runs At the same time, outside air enters the inside of the garbage dump through the air injection pipeline, and when the exhaust fan 7 was running, the internal air of the garbage dump was extracted from the garbage dump through the exhaust pipeline; The joint operation of the exhaust pipe and the exhaust pipe realizes the rapid ventilation inside the garbage dump. The control mechanism controls the air extraction fan 7 motors, the pressure sensor 21 of the air extraction well 2 is interlocked with the air extraction fan 7, and the frequency of the air extraction fan 7 is automatically adjusted with the pressure of the air extraction well 2.
本发明中，抽气井2或注气井3的流量小于设计流量的十分之一时，说明抽气井2或注气井3出现堵孔现象，此时控制器停止抽气风机7或注气风机14的电机运行，同时开启空气压缩机20前端电磁阀，对抽气井2或注气井3进行清孔吹扫工作。In the present invention, when the flow rate of the gas extraction well 2 or the gas injection well 3 is less than one-tenth of the designed flow rate, it means that the gas extraction well 2 or the gas injection well 3 is blocked. At this time, the controller stops the air extraction fan 7 or the gas injection fan 14 The motor is running, and the electromagnetic valve at the front end of the air compressor 20 is opened simultaneously to carry out hole cleaning and purging work to the air extraction well 2 or the gas injection well 3.
步骤7：抽气风机7出口的尾气处理机构8对抽出的有机废气进行处置。Step 7: The tail gas treatment mechanism 8 at the outlet of the exhaust fan 7 disposes the extracted organic waste gas.
步骤8：通过尾气处理机构8出口的气体成分在线监测仪器9实时监测尾气成分；当各项数据均符合标准，控制器控制三通阀10的开口朝向排气口11，气体外排，进行下一步；当监测数据未达到排放标准值，控制器控制三通阀10的开口朝向尾气处理机构8，控制器控制回气风机12将未达标气体送至尾气处理机构8，返回步骤7。Step 8: Monitor the tail gas composition in real time through the gas composition online monitoring instrument 9 at the outlet of the tail gas treatment mechanism 8; when all the data meet the standards, the controller controls the opening of the three-way valve 10 to the exhaust port 11, and the gas is discharged to the next step. One step: when the monitoring data does not reach the discharge standard value, the controller controls the opening of the three-way valve 10 to face the tail gas treatment mechanism 8, and the controller controls the return air fan 12 to send the gas that does not meet the standard to the tail gas treatment mechanism 8, and returns to step 7.
步骤9：判断是否完成处置，若是则进行下一步，否则，返回步骤6。Step 9: Judging whether the processing is completed, if so, proceed to the next step, otherwise, return to step 6.
步骤10：处置合格，进行设备拆卸和转移，进入下一待处置区域。Step 10: After the disposal is qualified, dismantle and transfer the equipment, and enter the next area to be disposed.
本发明通过为垃圾填埋场1配合设置预处理装置，通过均匀分布设于垃圾填埋场1内的若干抽气井2和若干注气井3作为处置井，分别配合连接抽气处理机构和注气处理机构，通过输氧抽气的稳定化措施，快速降低堆体内部甲烷浓度以及硫化氢等恶臭气体的浓度，确保安全开挖和文明施工，并通过水位控制机构，以科学合理的技术方法降低堆体含水量、优化好氧微生物代谢所需环境，提高通风预处理的效果与效率；区别于市面上的好氧稳定化方案，本发明在开挖前将垃圾堆体转化为好氧环境，降低甲烷浓度和恶臭气体浓度，有利于垃圾安全开挖，可以通过快速钻井-系统快速安装-快速抽气/注气，在短时间内实现换气。In the present invention, a pretreatment device is set up for the landfill 1, and a number of gas extraction wells 2 and a number of gas injection wells 3 are evenly distributed in the landfill 1 as disposal wells, and the gas extraction treatment mechanism and the gas injection are connected respectively. The processing mechanism quickly reduces the methane concentration and the concentration of malodorous gases such as hydrogen sulfide inside the pile through the stabilization measures of oxygen delivery and pumping to ensure safe excavation and civilized construction, and through the water level control mechanism, use scientific and reasonable technical methods to reduce body water content, optimize the environment required for aerobic microbial metabolism, and improve the effect and efficiency of ventilation pretreatment; different from the aerobic stabilization schemes on the market, this invention converts the garbage dump into an aerobic environment before excavation, reducing The concentration of methane and odorous gas is conducive to the safe excavation of garbage, and it can realize gas exchange in a short time through rapid drilling-system rapid installation-quick pumping/injection.
本发明采用输氧抽气的稳定化预处理的方式，对垃圾堆中的填埋气进行抽出收集处理工作，对于尾气处理机构8、抽气处理机构、注气处理机构和控制器等机构均采用撬装式，设备间采用快速接头进行连接，现场使用方便，操作灵活，模块化设备可根据项目工程量大小和周期要求灵活调整处置能力；无需对垃圾堆体进行开挖及其他工作，可随时根据场地的实际情况进行设备及管路的调整，对场地的适应性好；尾气处理机构8可以实现有机尾气、恶臭、无机物有效处置，真正消除污染物，更具环境安全性；可以采用夯机方式进行抽气井2和注气井3的建设，相比传统的建井方式周期短、建井成本低，更适用于开挖筛分场地的快速预处理施工；以水位控制机构配合其他有效控制处置井有效的机构，实现对地下井管风孔的有效清理及性能检测，无须将井管拉出，有效提高了生产的效率，减少了检修率。The present invention adopts the stabilizing pretreatment mode of oxygen delivery and gas pumping to extract and collect the landfill gas in the garbage heap. For the tail gas processing mechanism 8, the gas pumping processing mechanism, the gas injection processing mechanism and the controller, etc. Skid-mounted, the equipment is connected by quick connectors, easy to use on site, flexible to operate, and the modular equipment can flexibly adjust the disposal capacity according to the size and cycle requirements of the project; there is no need for excavation and other work on the garbage dump, and it can be used at any time The equipment and pipelines are adjusted according to the actual situation of the site, which has good adaptability to the site; the tail gas treatment mechanism 8 can realize the effective disposal of organic tail gas, odor, and inorganic substances, and truly eliminate pollutants, which is more environmentally safe; tamping can be used The construction of gas extraction well 2 and gas injection well 3 is carried out by means of machine, which has a shorter period and lower cost than the traditional well construction method, and is more suitable for rapid pretreatment construction of excavation and screening sites; the water level control mechanism cooperates with other effective control The effective mechanism for disposal of wells realizes the effective cleaning and performance testing of the air holes of underground well pipes, without pulling out the well pipes, effectively improving production efficiency and reducing maintenance rates.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910680838.2A CN110314925A (en) | 2019-07-26 | 2019-07-26 | A kind of refuse landfill original position aerobic stabilization processing unit and processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910680838.2A CN110314925A (en) | 2019-07-26 | 2019-07-26 | A kind of refuse landfill original position aerobic stabilization processing unit and processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110314925A true CN110314925A (en) | 2019-10-11 |
Family
ID=68124733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910680838.2A Pending CN110314925A (en) | 2019-07-26 | 2019-07-26 | A kind of refuse landfill original position aerobic stabilization processing unit and processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110314925A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111871804A (en) * | 2020-07-08 | 2020-11-03 | 广东亨益环保集团有限公司 | A kind of sorting method of stock garbage |
| CN113578912A (en) * | 2021-07-08 | 2021-11-02 | 东莞市恒升环保科技有限公司 | System and method for stabilizing aerobic microorganisms in refuse landfill |
| CN114210717A (en) * | 2021-07-28 | 2022-03-22 | 巨锋 | Recycling treatment method for old garbage |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310076A (en) * | 2011-06-16 | 2012-01-11 | 北京紫光泰和通环保技术有限公司 | Aerobic repairing system and repairing method of solid waste area |
| CN205037427U (en) * | 2015-08-19 | 2016-02-17 | 陈婷婷 | Automatic clearance formula air purifier |
| CN205128509U (en) * | 2015-10-27 | 2016-04-06 | 济南宝艺环保技术有限公司 | Cleaning device is used to rotatory bucket of sludge deep dehydration machine |
| CN106140779A (en) * | 2015-04-12 | 2016-11-23 | 樊军 | A kind of Mini nutritionalassessment aerobe reactor processing system and method |
| CN205762719U (en) * | 2016-07-04 | 2016-12-07 | 大陆汽车投资（上海）有限公司 | The cleaning blocking device of the blind hole on support |
| CN107876539A (en) * | 2017-10-17 | 2018-04-06 | 南京中电环保工程有限公司 | The aerobic Ecosystem restoration system of refuse landfill and method |
| CN210450267U (en) * | 2019-07-26 | 2020-05-05 | 中节能大地（杭州）环境修复有限公司 | In-situ aerobic stabilization treatment device for refuse landfill |
-
2019
- 2019-07-26 CN CN201910680838.2A patent/CN110314925A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310076A (en) * | 2011-06-16 | 2012-01-11 | 北京紫光泰和通环保技术有限公司 | Aerobic repairing system and repairing method of solid waste area |
| CN106140779A (en) * | 2015-04-12 | 2016-11-23 | 樊军 | A kind of Mini nutritionalassessment aerobe reactor processing system and method |
| CN205037427U (en) * | 2015-08-19 | 2016-02-17 | 陈婷婷 | Automatic clearance formula air purifier |
| CN205128509U (en) * | 2015-10-27 | 2016-04-06 | 济南宝艺环保技术有限公司 | Cleaning device is used to rotatory bucket of sludge deep dehydration machine |
| CN205762719U (en) * | 2016-07-04 | 2016-12-07 | 大陆汽车投资（上海）有限公司 | The cleaning blocking device of the blind hole on support |
| CN107876539A (en) * | 2017-10-17 | 2018-04-06 | 南京中电环保工程有限公司 | The aerobic Ecosystem restoration system of refuse landfill and method |
| CN210450267U (en) * | 2019-07-26 | 2020-05-05 | 中节能大地（杭州）环境修复有限公司 | In-situ aerobic stabilization treatment device for refuse landfill |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111871804A (en) * | 2020-07-08 | 2020-11-03 | 广东亨益环保集团有限公司 | A kind of sorting method of stock garbage |
| CN113578912A (en) * | 2021-07-08 | 2021-11-02 | 东莞市恒升环保科技有限公司 | System and method for stabilizing aerobic microorganisms in refuse landfill |
| CN114210717A (en) * | 2021-07-28 | 2022-03-22 | 巨锋 | Recycling treatment method for old garbage |
| CN114210717B (en) * | 2021-07-28 | 2024-03-08 | 巨锋 | Method for recycling aged garbage |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210450267U (en) | In-situ aerobic stabilization treatment device for refuse landfill | |
| CN105234164B (en) | The heterotopic biological heap gas phase extracting-bio- ventilation prosthetic device and method of a kind of organic polluted soil | |
| CN100526571C (en) | Biogas and leachate integrated pumping and drainage system for garbage landfill | |
| CN107876539A (en) | The aerobic Ecosystem restoration system of refuse landfill and method | |
| CN211437418U (en) | In-situ remediation system for aerobic-anaerobic circulation of refuse landfill | |
| CN110314925A (en) | A kind of refuse landfill original position aerobic stabilization processing unit and processing method | |
| CN106140779B (en) | A kind of Mini nutritionalassessment aerobe reactor processing system and method | |
| CN110695061A (en) | Landfill Rapid Stabilization System | |
| CN201010984Y (en) | Integrated drainage device for biogas and leachate in landfill | |
| CN109500043A (en) | A kind of quasi- aerobic ecological restoring method of refuse landfill and system | |
| CN211802987U (en) | Aerobic bioreactor treatment system for accelerating decrement stabilization of refuse landfill | |
| CN105127174B (en) | A kind of processing method of the sustainable household refuse landfill sites of cycle | |
| CN211247723U (en) | Rapid stabilization system for refuse landfill | |
| CN107737788A (en) | A kind of sanitary filling field landfill gas collection processing system implementing and method | |
| CN113578912A (en) | System and method for stabilizing aerobic microorganisms in refuse landfill | |
| CN116120103A (en) | Aeration-promoting oxygen supply device and method for garbage fermentation | |
| CN214653767U (en) | In situ intensive groundwater air injection well | |
| CN110665931A (en) | In-situ remediation system and method for aerobic-anaerobic circulation of refuse landfill | |
| CN100560238C (en) | Two-step urban domestic waste landfill treatment system and method thereof | |
| CN204093827U (en) | The integrated repair system of soil vapor extraction and underground water gas injection | |
| KR101153350B1 (en) | Horizontal Water Recirulation and LFG Collection in Bioreactor Landfill | |
| CN107986595A (en) | A kind of sludge concentration tank foul smell Collecting and dealing method | |
| CN218656083U (en) | Biological drying pretreatment facility for domestic garbage of villages and towns in northern arid regions | |
| CN103934250A (en) | Device and method for extracting landfill gas and leachate in domestic waste heap simultaneously | |
| CN203007013U (en) | Anti-clogging high-load biological filter pool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |