CN101070216A - Integrated ozone and aeration biological filtering pool water treatment apparatus and method - Google Patents
Integrated ozone and aeration biological filtering pool water treatment apparatus and method Download PDFInfo
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 144
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000005273 aeration Methods 0.000 title claims abstract description 22
- 238000001914 filtration Methods 0.000 title description 2
- 238000006243 chemical reaction Methods 0.000 claims abstract description 31
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000001301 oxygen Substances 0.000 claims abstract description 23
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 23
- 230000003647 oxidation Effects 0.000 claims description 27
- 238000007254 oxidation reaction Methods 0.000 claims description 27
- 230000035484 reaction time Effects 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 2
- 238000002203 pretreatment Methods 0.000 claims 1
- 238000006385 ozonation reaction Methods 0.000 abstract description 5
- 239000005416 organic matter Substances 0.000 description 19
- 239000002351 wastewater Substances 0.000 description 19
- 239000007789 gas Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 239000003344 environmental pollutant Substances 0.000 description 5
- 239000002957 persistent organic pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- 230000000813 microbial effect Effects 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000010170 biological method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 230000009102 absorption Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
本发明公开了一体式臭氧与曝气生物滤池水处理装置及其方法。该装置曝气生物滤池(9)位于臭氧接触反应室(8)的上方，通过曝气生物滤池(9)的滤板与臭氧接触反应室(8)连通；臭氧接触反应室与文丘里管(5)连接，文丘里管(5)还分别与臭氧发生系统(6)、进水水泵(1)连接；臭氧发生系统(6)为通过无声放电法使空气中的部分氧气转化为臭氧的臭氧发生器。该方法中经臭氧预处理以后的水通过臭氧反应室顶部的曝气生物滤池的滤板均匀进入曝气生物滤池(9)，在曝气生物滤池处理的停留时间为1～4小时。本发明不需安装曝气系统就可提高曝气效率，曝气生物滤池与臭氧化缓冲池单元间流量平衡，具有水处理效率高、投资少、运行成本低的优点。
The invention discloses an integrated ozone and aerated biological filter water treatment device and a method thereof. The biological aerated filter (9) of the device is located above the ozone contact reaction chamber (8), and communicates with the ozone contact reaction chamber (8) through the filter plate of the biological aerated filter (9); the ozone contact reaction chamber is connected to the Venturi Tube (5) is connected, and Venturi tube (5) is also connected with ozone generation system (6) and water inlet water pump (1) respectively; Ozone generation system (6) is to convert part of the oxygen in the air into ozone ozone generator. In the method, the water pretreated by ozone passes through the filter plate of the biological aerated filter on the top of the ozone reaction chamber and enters the biological aerated filter (9) evenly, and the residence time in the biological aerated filter is 1 to 4 hours. . The invention can improve the aeration efficiency without installing an aeration system, balance the flow between the aeration biological filter tank and the ozonation buffer tank unit, and has the advantages of high water treatment efficiency, less investment and low operation cost.
Description
技术领域technical field
本发明涉及水处理领域，具体是利用臭氧与曝气生物滤池一体化水处理方法处理受污染原水、废水，特别是含难生物降解有机物废水的深度处理领域。The invention relates to the field of water treatment, in particular to the field of advanced treatment of polluted raw water and waste water, especially waste water containing refractory biodegradable organic matter, by using an integrated water treatment method of ozone and biological aerated filter.
背景技术Background technique
臭氧具有极强的氧化性能，其氧化能力仅次于氟，高于氯和高锰酸钾。基于臭氧的强氧化性，且在水中可短时间内自行分解，没有二次污染，是理想的绿色氧化药剂。目前，臭氧技术在水处理领域中的许多方面得到了应用。臭氧不仅具有很强的消毒杀菌作用，还可以氧化去除水中的难以生物降解的污染物质，但是如果单独使用臭氧将难以生物降解的污染物矿化为二氧化碳和水直接去除，往往臭氧投加量大，所需费用太高，经济性差，无法在实际工程中大规模应用。Ozone has extremely strong oxidizing properties, and its oxidizing ability is second only to fluorine, higher than chlorine and potassium permanganate. Based on the strong oxidizing properties of ozone, it can be decomposed in water in a short time without secondary pollution, so it is an ideal green oxidizing agent. At present, ozone technology has been applied in many aspects in the field of water treatment. Ozone not only has a strong disinfection and sterilization effect, but also can oxidize and remove difficult-to-biodegradable pollutants in water. However, if ozone is used alone to mineralize difficult-to-biodegradable pollutants into carbon dioxide and water for direct removal, the dosage of ozone is often large , the required cost is too high, and the economy is poor, so it cannot be applied on a large scale in actual engineering.
曝气生物滤池(BAF)工艺主要应用于低浓度的污水深度处理和原水微污染的预处理，如城市生活污水处理，低浓度工业污水处理，给水的原水预处理等。它是一种微生物接触生长氧化系统，通过附着在填料上的微生物的吸收、降解、氧化、合成等作用，去除可生物降解和利用的有机物。该方法集污水处理曝气池和给水快滤池的特点于一体，高比表面积的粒状填料的使用不仅增大了微生物量，而且微生物的活性高，同时使得废水能同填料表面的微生物充分有效地接触，因而使得曝气生物滤池较一般传统的生物处理技术有更高的处理效率。曝气生物滤池的最大特点是集生物氧化和截留悬浮固体于一体，节省了后续二次沉淀池，在保证处理效果的前提下使处理工艺简化。此外，曝气生物滤池工艺有机物容积负荷高、水力负荷大，水力停留时间短、所需基建投资少、能耗及运行成本低和保证较高出水水质的特点。但曝气生物滤池技术对含难生物降解有机物废水污染物的去除却相当有限，对含溶解性，且又难以生物降解污染物的去除是污水深度处理，中水回用的一个难题。The biological aerated filter (BAF) process is mainly used in the advanced treatment of low-concentration sewage and the pretreatment of micro-pollution of raw water, such as urban domestic sewage treatment, low-concentration industrial sewage treatment, raw water pretreatment of water supply, etc. It is a microbial contact growth oxidation system that removes biodegradable and usable organic matter through the absorption, degradation, oxidation, and synthesis of microorganisms attached to the filler. This method integrates the characteristics of the sewage treatment aeration tank and the water supply fast filter tank. The use of granular fillers with high specific surface area not only increases the microbial biomass, but also has high microbial activity, and at the same time makes the wastewater fully effective with the microorganisms on the surface of the filler. Ground contact, thus making the biological aerated filter have a higher treatment efficiency than the general traditional biological treatment technology. The biggest feature of the biological aerated filter is that it integrates biological oxidation and interception of suspended solids, saves the subsequent secondary sedimentation tank, and simplifies the treatment process on the premise of ensuring the treatment effect. In addition, the biological aerated filter process has the characteristics of high organic matter volume load, large hydraulic load, short hydraulic retention time, less infrastructure investment, low energy consumption and operating costs, and high effluent water quality. However, the biological aerated filter technology is quite limited in the removal of wastewater pollutants containing refractory biodegradable organic matter. The removal of soluble and refractory biodegradable pollutants is a difficult problem in advanced sewage treatment and reuse of reclaimed water.
申请号200510035132.9发明专利申请公开了化学氧化-曝气生物滤池联合水处理方法，该方法利用臭氧主要起破坏有机物的结构，将低浓度的不可生物降解的有机物，变成可以生物降解的有机物。通过缓冲池来降低水中殘留臭氧的毒性，然后利用高效的曝气生物滤池的生化处理，进一步降低其中的有机物。利用此技术可使处理后的废水达到回用标准；达到处理成本低，处理效果好的结果，而且用臭氧氧化，不会给水带来除了溶解氧外的其它无机杂质，而溶解氧又可被曝气生物滤池的生物利用，使得两者起到协同作用。但是该方法的曝气生物滤池需要安装曝气系统(含曝气管，曝气头)，施工安装难度较大；同时需要专门的风机给曝气生物滤池充气供氧，臭氧化以后的水也需要安装水泵及管道再泵入曝气生物滤池，一定程度上增加占地面积和运行成本；还存在曝气生物滤池与臭氧化缓冲池单元间流量不平衡的问题，影响水处理效果。Application No. 200510035132.9 Patent Application for Invention discloses a chemical oxidation-biological aerated filter combined water treatment method. This method uses ozone to mainly destroy the structure of organic matter, and convert low-concentration non-biodegradable organic matter into biodegradable organic matter. The toxicity of residual ozone in the water is reduced through the buffer tank, and then the biochemical treatment of the high-efficiency biological aerated filter is used to further reduce the organic matter in it. Utilizing this technology can make the treated wastewater meet the reuse standard; achieve the result of low treatment cost and good treatment effect, and the use of ozone oxidation will not bring other inorganic impurities to the water except dissolved oxygen, and dissolved oxygen can be used The biological utilization of the biological aerated filter makes the two play a synergistic effect. However, the biological aerated filter of this method needs to install an aeration system (including aeration pipe, aeration head), and the construction and installation are difficult; at the same time, a special fan is required to inflate the biological aerated filter to supply oxygen, and the ozonated Water also needs to be installed with water pumps and pipelines to be pumped into the biological aerated filter, which increases the floor area and operating costs to a certain extent; there is also the problem of unbalanced flow between the biological aerated filter and the ozonation buffer tank, which affects water treatment Effect.
发明内容Contents of the invention
本发明的目的就是为了解决上述现有技术中存在的不足之处，针对具有有机污染物浓度不高，即化学需氧量(COD)低于180mg/L，但这些有机物难生物降解特点的废水，提出一种不需安装曝气系统就可提高曝气效率，曝气生物滤池与臭氧化缓冲池单元间流量平衡的臭氧反应装置与曝气生物滤池一体式水处理装置。The purpose of the present invention is exactly in order to solve the weak point that exists in the above-mentioned prior art, aim at the waste water that has organic pollutant concentration not high, and chemical oxygen demand (COD) is lower than 180mg/L, but these organic matters are difficult to biodegrade , a water treatment device integrated with an ozone reaction device and a biological aerated filter that can improve the aeration efficiency without installing an aeration system and balance the flow between the biological aerated filter and the ozonation buffer tank unit is proposed.
本发明的另一目的在于提供上述一体式臭氧与曝气生物滤池处理水的方法。Another object of the present invention is to provide the above-mentioned method for treating water with an integrated ozone and biological aerated filter.
本发明的目的通过如下技术方案实现：The purpose of the present invention is achieved through the following technical solutions:
一体式臭氧与曝气生物滤池化水处理装置，包括臭氧接触反应室、曝气生物滤池，曝气生物滤池位于臭氧接触反应室的上方，通过曝气生物滤池的滤板与臭氧接触反应室连通，出水堰设置在曝气生物滤池上方；臭氧接触反应室与文丘里管连接，文丘里管还分别与臭氧发生系统和进水水泵连接；所述臭氧发生系统为通过无声放电法使空气中的部分氧气转化为臭氧的臭氧发生器。The integrated ozone and biological aerated filter water treatment device includes an ozone contact reaction chamber and a biological aerated filter. The biological aerated filter is located above the ozone contact reaction chamber. The contact reaction chamber is connected, and the outlet weir is set above the biological aerated filter; the ozone contact reaction chamber is connected to the Venturi tube, and the Venturi tube is also connected to the ozone generation system and the water inlet pump respectively; An ozone generator that converts part of the oxygen in the air into ozone.
在进水水泵的进水管道上，通过三通与阀门二与阀门四连接，阀门四与出水堰连接。既可使用曝气生物滤池处理后的出水循环，也可使用待处理的废水，通过进水水泵增压，调节阀门与阀门保证文丘里管吸入足够的空气与臭氧的量。在待处理的废水进水管道上设置有流量计。On the water inlet pipe of the water inlet pump, it is connected with the valve two and the valve four through a tee, and the valve four is connected with the water outlet weir. It can not only use the effluent circulation after the treatment of the biological aerated filter, but also use the waste water to be treated, pressurize it through the water inlet pump, and adjust the valve and the valve to ensure that the Venturi tube sucks enough air and ozone. A flow meter is arranged on the wastewater inlet pipeline to be treated.
一体式臭氧与曝气生物滤池装置处理水的方法：来自进水水泵的水和来自臭氧发生系统中混有氧气的臭氧在文丘里管中气水混合后进入臭氧接触反应室8，臭氧的加入量为臭氧与待处理水中COD的质量比为0.05～1∶1，在臭氧接触氧化室反应时间为1～2小时；随后，经臭氧预处理以后的水通过臭氧反应室顶部的曝气生物滤池的滤板均匀进入曝气生物滤池9，在曝气生物滤池处理的停留时间为1～4小时，最后由出水堰11排出。The water treatment method of the integrated ozone and biological aerated filter device: the water from the water inlet pump and the ozone mixed with oxygen from the ozone generation system enter the ozone contact reaction chamber 8 after the gas and water are mixed in the Venturi tube, and the ozone The amount of addition is that the mass ratio of ozone to COD in the water to be treated is 0.05 to 1:1, and the reaction time in the ozone contact oxidation chamber is 1 to 2 hours; then, the water after ozone pretreatment passes through the aerated organisms on the top of the ozone reaction chamber. The filter plate of the filter tank evenly enters the biological aerated filter tank 9, and the residence time of the treatment in the biological aerated filter tank is 1 to 4 hours, and finally is discharged by the outlet weir 11.
本发明原理：在一个反应器中包括臭氧接触氧化处理、曝气生物滤池生化处理两个部分。臭氧由空气气源的臭氧发生器，通过无声放电法产生含臭氧化的气体，通过文丘里吸收进入臭氧接触氧化室进行处理水的预氧化，在臭氧接触氧化室反应后，经臭氧预处理以后的水通过臭氧反应室顶部的滤板进入曝气生物滤池，水在臭氧接触氧化室的停留时间为1～2小时，目的是使经过臭氧氧化预处理以后残留的臭氧尽量分解，处理水经过臭氧预氧化由下向上进入曝气生物滤池，曝气生物滤池的氧源由臭氧分解产生的氧气及臭氧化的气体中的氧气提供，省去曝气生物滤池的曝气系统(曝气头，曝气管，风机)。该方法先利用臭氧氧化部分有机物，提高有机污染物的可生化性(可用生物方法降解去除的有机物的含量)，然后在不加曝气系统的情况下利用曝气生物滤池处理工艺，将难生物降解有机物从废水中去除。The principle of the invention: one reactor includes two parts of ozone contact oxidation treatment and biological aerated filter tank biochemical treatment. Ozone is produced by an ozone generator with an air source, through a silent discharge method to generate ozonated gas, which is absorbed by Venturi and enters the ozone contact oxidation chamber for pre-oxidation of the treated water. After the reaction in the ozone contact oxidation chamber, after ozone pretreatment The water enters the biological aerated filter through the filter plate on the top of the ozone reaction chamber. The residence time of the water in the ozone contact oxidation chamber is 1 to 2 hours. The purpose is to decompose the residual ozone after the ozone oxidation pretreatment as much as possible. Ozone pre-oxidation enters the biological aerated filter from bottom to top. The oxygen source of the biological aerated filter is provided by the oxygen generated by the decomposition of ozonization and the oxygen in the ozonated gas, and the aeration system (aeration system) of the biological aerated filter is omitted. air head, aeration pipe, fan). The method first uses ozone to oxidize part of the organic matter to improve the biodegradability of organic pollutants (the content of organic matter that can be degraded and removed by biological methods), and then uses the biological aerated filter treatment process without an aeration system to reduce the biodegradability of organic pollutants. Biodegradable organic matter is removed from wastewater.
本发明与现有技术相比，具有以下优点和有益效果：Compared with the prior art, the present invention has the following advantages and beneficial effects:
本发明采用臭氧氧化预处理破坏处理水中难生物降解的有机物，将其转化为可生物降解的有机物，再利用曝气生物滤池对其进行生化处理，充分发挥曝气生物滤池的优点，使含难生物降解有机物的废水得到有效的处理，其优点如下：The present invention uses ozone oxidation pretreatment to destroy and treat organic matter that is difficult to biodegrade in water, convert it into biodegradable organic matter, and then use biological aerated filter to perform biochemical treatment on it, so as to fully utilize the advantages of biological aerated filter and make Wastewater containing refractory organic matter is effectively treated, and its advantages are as follows:
1、利用加入臭氧的过程中带入空气中的氧气，为曝气生物滤池的微生物生化处理提供氧源，并且通过文丘里管达到高效的气水混合，不必安装曝气系统(含曝气管，曝气头)，并且提高了曝气效率，减少了因安装曝气管与曝气头而形成的曝气生物滤池的施工安装难度，同时，臭氧氧化以后的产物是氧气，进一步地发挥了臭氧氧化与曝气生物滤池处理的协同效应。1. Use the oxygen brought into the air during the process of adding ozone to provide an oxygen source for the microbial biochemical treatment of the biological aerated filter, and achieve efficient gas-water mixing through the Venturi tube, without installing an aeration system (including aeration pipe, aeration head), and improved aeration efficiency, reducing the difficulty of construction and installation of the biological aerated filter formed by installing the aeration pipe and aeration head. At the same time, the product after ozone oxidation is oxygen, further The synergistic effect of ozone oxidation and biological aerated filter treatment is brought into play.
2、降低操作过程的动力消耗，不必使用其它的风机给曝气生物滤池充气供氧。由于臭氧发生器是通过无声放电法使空气中的部分氧气转化为臭氧，因此进入臭氧接触氧化室的气体中还含有大量的氧气(氧气的体积浓度不低于19％)，而且对于低COD(180mg/L)的废水或者微污染原水(COD值约10～30mg/L)，曝气生物滤池生物降解有机物所需的气量为处理水量的0.5～2倍，而臭氧发生器含臭氧化气体的气量可以满足这个要求，因此该处理方法可以节省曝气生物滤池的曝气风机，节省了设备购置费用和运行成本。2. Reduce the power consumption in the operation process, and do not need to use other fans to inflate the biological aerated filter to supply oxygen. Since the ozone generator converts part of the oxygen in the air into ozone through a silent discharge method, the gas entering the ozone contact oxidation chamber also contains a large amount of oxygen (the volume concentration of oxygen is not less than 19%), and for low COD ( 180mg/L) of waste water or slightly polluted raw water (COD value of about 10-30mg/L), the amount of gas required for the biodegradation of organic matter in the biological aerated filter is 0.5-2 times the amount of treated water, while the ozone generator contains ozonated gas The air volume can meet this requirement, so this treatment method can save the aeration fan of the biological aerated filter, saving equipment purchase costs and operating costs.
3、处理方法操作简单，本方法将臭氧预处理以后的水利用进水水泵的动力，直接通过臭氧接触反应室上部的滤板滤头进入曝气生物滤池，在一个反应器中实现了臭氧氧化和曝气生物滤池的联合处理。减少了臭氧化以后的水再泵入曝气生物滤池的麻烦；减少了泵与管道，及各单元间流量不平衡的问题，处理系统紧凑，占地面积小。3. The treatment method is simple to operate. In this method, the water after ozone pretreatment is directly entered into the biological aerated filter through the filter plate filter head on the upper part of the ozone contact reaction chamber by using the power of the water inlet pump, and ozone is realized in one reactor. Combined treatment of oxidation and biological aerated filter. Reduce the trouble of pumping the ozonated water into the biological aerated filter; reduce the problem of unbalanced flow between pumps and pipelines, and between units, and the treatment system is compact and occupies a small area.
4、臭氧化后不必再安装臭氧破坏系统，上面的曝气生物滤池完全可以防止臭氧的外泄。臭氧化气体在整个反应器的停留时间为2～6小时，相对于臭氧的半衰期15～20分钟，停留的时间够长，同时由于臭氧要经过充满生物载体的曝气生物滤池，因此尾气中基本没有臭氧残留。4. It is not necessary to install an ozone destruction system after ozonation, and the above biological aerated filter can completely prevent the leakage of ozone. The residence time of the ozonated gas in the whole reactor is 2 to 6 hours, which is long enough compared to the half-life of ozone of 15 to 20 minutes. Almost no ozone residue.
5、对被污染原水的给水净化，提供了一种经济而有效的处理工艺。随着人们对自来水质量要求的提高，脱除自来水中的微量有机污染物，特别是被微生物难生物降解有机物污染的水源水的处理越来越受到重视，臭氧-曝气生物滤池一体化水深度处理方法不但可以达到去除微量污染物的作用，而且有一定的消毒杀菌效果，且可脱除原水中的氨氮，是原水微污染处理的新工艺。5. It provides an economical and effective treatment process for the purification of polluted raw water. With the improvement of people's requirements for the quality of tap water, more and more attention has been paid to the removal of trace organic pollutants in tap water, especially the treatment of source water polluted by microorganisms that are difficult to biodegrade organic matter. Ozone-biological aerated filter integrated water The advanced treatment method can not only achieve the effect of removing trace pollutants, but also has certain disinfection and sterilization effects, and can remove ammonia nitrogen in raw water. It is a new process for the treatment of raw water micro-pollution.
附图说明Description of drawings
图1为本发明一体式臭氧与曝气生物滤池水处理装置结构示意图。Fig. 1 is a structural schematic diagram of an integrated ozone and biological aerated filter water treatment device of the present invention.
具体实施方式Detailed ways
下面结合实施例对本发明的具体实施方式作进一步详细的说明，但本发明的实施方式不限于此。The specific implementation manner of the present invention will be described in further detail below in conjunction with the examples, but the implementation manner of the present invention is not limited thereto.
如图1所示，一体式臭氧与曝气生物滤池化水处理装置主要包括臭氧接触反应室8和曝气生物滤池9，曝气生物滤池9位于臭氧接触反应室8的上方，通过曝气生物滤池底部的滤板与臭氧接触反应室8连通，出水堰11设置在曝气生物滤池9上方，处理后的水最后由出水堰11排出；臭氧接触反应室8与文丘里管5连接，文丘里管5还分别与臭氧发生系统6、进水水泵1连接；臭氧发生系统6为通过无声放电法使空气中的部分氧气转化为臭氧的臭氧发生器。文丘里管5与进水水泵1连接的管道上设置有流量计3，流量计用于显示系统的处理水量。流量计3的前后端管道上分别设有阀门一2和阀门二4。文丘里管5与臭氧接触反应室8连接的管道上设有阀门三7，文丘里管5与臭氧接触反应室8连接的管道上设有阀门7，与文丘里进口的阀门二4一起，调整水流在文丘里管中的压差，从而调节文丘里的吸气量。文丘里管5与进水水泵1连接，在进水水泵的进水管道上，通过三通与阀门一2与阀门四10连接，阀门四10与出水堰11连接，既可使用曝气生物滤池处理后的出水循环，也可使用待处理的废水，通过进水水泵1增压，通过阀门二4与阀门三7可调整文丘里管的压差，从而保证与调节文丘里管5吸入足够的空气与臭氧的量。As shown in Figure 1, the integrated ozone and biological aerated filter water treatment device mainly includes an ozone contact reaction chamber 8 and a biological aerated filter 9, and the biological aerated filter 9 is located above the ozone contact reaction chamber 8. The filter plate at the bottom of the biological aerated filter communicates with the ozone contact reaction chamber 8, and the outlet weir 11 is set above the biological aerated filter 9, and the treated water is finally discharged from the outlet weir 11; the ozone contact reaction chamber 8 and the Venturi tube 5 is connected, and the Venturi tube 5 is also connected with the ozone generating system 6 and the water inlet pump 1 respectively; the ozone generating system 6 is an ozone generator that converts part of the oxygen in the air into ozone through a silent discharge method. A flow meter 3 is arranged on the pipe connecting the Venturi tube 5 and the water inlet pump 1, and the flow meter is used to display the treated water volume of the system. A valve one 2 and a valve two 4 are respectively provided on the front and rear end pipelines of the flow meter 3 . A valve 3 7 is provided on the pipeline connecting the Venturi tube 5 and the ozone contact reaction chamber 8, and a valve 7 is provided on the pipeline connecting the Venturi tube 5 and the ozone contact reaction chamber 8, together with the valve 2 4 of the Venturi inlet, adjust The pressure difference of the water flow in the Venturi tube, thereby adjusting the suction volume of the Venturi. The Venturi tube 5 is connected to the water inlet pump 1, and on the water inlet pipe of the water inlet pump, it is connected to the valve 1 2 and the valve 4 10 through a tee, and the valve 4 10 is connected to the water outlet weir 11, which can be used for aerated biological filtration The outlet water cycle after pool treatment can also use the waste water to be treated, pressurize through the inlet water pump 1, and adjust the pressure difference of the Venturi tube through the valve 2 4 and valve 3 7, so as to ensure and adjust the suction of the Venturi tube 5 enough amount of air and ozone.
利用上述一体式臭氧与曝气生物滤池装置处理水的方法：来自进水水泵1的水和来自臭氧发生系统6中混有臭氧的气体在文丘里管5中气水混合后进入臭氧接触反应室8，臭氧是由空气气源的臭氧发生器，通过无声放电法产生含臭氧化的气体，通过文丘里管5吸收进入臭氧接触氧化室进行处理水的预氧化，臭氧的加入量为臭氧与待处理水中COD的质量比为0.05～1∶1，在臭氧接触氧化室反应时间为1～2小时；使经过臭氧氧化预处理以后残留的臭氧尽量分解。随后，经臭氧预处理后的水通过设在臭氧反应室8顶部的曝气生物滤池9的滤板均匀进入曝气生物滤池9，处理水是经过臭氧预氧化以后与随臭氧一起吸入的空气，由下向上进入曝气生物滤池，在曝气生物滤池处理的停留时间为1～4小时，最后由出水堰11排出。该方法先利用臭氧氧化部分有机物，提高有机污染物的可生化性(可用生物方法降解去除的有机物的含量)，然后再利用曝气生物滤池处理工艺，将难生物降解有机物从废水中去除。The method of using the above-mentioned integrated ozone and biological aerated filter device to treat water: the water from the water inlet pump 1 and the gas mixed with ozone from the ozone generation system 6 enter the ozone contact reaction after the gas and water are mixed in the venturi tube 5 Chamber 8, ozone is an ozone generator with air source, which produces ozonated gas through the silent discharge method, absorbs it through the Venturi tube 5 and enters the ozone contact oxidation chamber for pre-oxidation of the treated water, and the amount of ozone added is ozone and The mass ratio of COD in the water to be treated is 0.05-1:1, and the reaction time in the ozone contact oxidation chamber is 1-2 hours; the residual ozone after the ozone oxidation pretreatment is decomposed as much as possible. Subsequently, the water pretreated by ozone enters the biological aerated filter 9 evenly through the filter plate of the biological aerated filter 9 located at the top of the ozone reaction chamber 8, and the treated water is inhaled together with the ozone after being pre-oxidized by ozone. The air enters the biological aerated filter from bottom to top, and the residence time for treatment in the biological aerated filter is 1 to 4 hours, and finally it is discharged from the outlet weir 11. The method first uses ozone to oxidize part of the organic matter to improve the biodegradability of the organic pollutant (the content of the organic matter that can be degraded and removed by biological methods), and then uses the biological aerated filter treatment process to remove the refractory biodegradable organic matter from the wastewater.
实施例1Example 1
采用臭氧——曝气生物滤池一体化水处理方法对某印染厂废水的二级生化出水进行深度处理，水量为5t/h。采用的文丘里管材质为不锈钢，尺寸为50mm外牙。臭氧发生系统采用臭氧产生量为300g/h，臭氧发生器的型号为：SOZ-YW-300G，臭氧气体中含氧气为总体积的19％，臭氧接触反应室为圆柱状，总体积约为10m3，高为1.2m，半径约为1.5m，曝气生物滤池总体积为20m3，高为4.4m，半径约为1.2m，滤料采用3-5mm的陶粒，陶粒的体积12m3。首先通过臭氧预处理，臭氧投加量为臭氧与COD质量比为0.5∶1，臭氧在接触氧化室的反应时间为2小时，经过臭氧预处理以后的废水进入臭氧接触氧化室上端的曝气生物滤池，曝气生物滤池停留时间为3个小时，该处理方法的COD去除率为78％。原进水的COD平均180mg/L，处理后COD值为40mg/L，具有较好的处理效果，与臭氧-曝气生物滤池方法的比较结果如下表1所示。从表1可以看到，与背景技术中臭氧-曝气生物滤池处理方法相比，经过本实施例处理后的印染厂废水的二级生化出水COD含量含量由50mg/L降低到40mg/L；而且设备购置费用和运行成本都有较大幅度降低。The ozone-biological aerated filter integrated water treatment method is used to carry out advanced treatment of the secondary biochemical effluent of a printing and dyeing factory wastewater, with a water volume of 5t/h. The Venturi tube used is made of stainless steel with a size of 50mm outer teeth. The ozone generating system adopts an ozone production rate of 300g/h. The model of the ozone generator is: SOZ-YW-300G. The oxygen content in the ozone gas is 19% of the total volume. The ozone contact reaction chamber is cylindrical and the total volume is about 10m 3 , the height is 1.2m, the radius is about 1.5m, the total volume of the biological aerated filter is 20m 3 , the height is 4.4m, the radius is about 1.2m, the filter material is 3-5mm ceramsite, the volume of ceramsite is 12m 3 . Firstly, through ozone pretreatment, the dosage of ozone is 0.5:1 mass ratio of ozone to COD, the reaction time of ozone in the contact oxidation chamber is 2 hours, and the wastewater after ozone pretreatment enters the aerated organisms at the upper end of the ozone contact oxidation chamber The residence time of the biological aerated filter is 3 hours, and the COD removal rate of this treatment method is 78%. The average COD of the original influent is 180mg/L, and the COD value after treatment is 40mg/L, which has a good treatment effect. The comparison results with the ozone-biological aerated filter method are shown in Table 1 below. As can be seen from Table 1, compared with the ozone-biological aerated filter treatment method in the background technology, the COD content of the secondary biochemical effluent of the printing and dyeing factory wastewater treated in this embodiment is reduced from 50mg/L to 40mg/L ; And equipment purchase costs and operating costs have been greatly reduced.
表1Table 1
实施例2Example 2
采用臭氧——曝气生物滤池一体化水处理方法对某造纸厂废水的二级生化出水进行深度，水量为10t/h。采用的文丘里管的材质为不锈钢，尺寸为50mm外牙，臭氧发生系统采用臭氧产生量为250g/h，臭氧发生器型号为：SOA-YW-250G，臭氧气体中含氧气为总体积的19％，臭氧接触反应室为圆柱状，总体积约为10m3，高为0.8m，半径约为2m，曝气生物滤池总体积为30m3，高为3m，半径约为1.8m，滤料采用3-5mm的陶粒，，陶粒的体积18m3。首先通过臭氧预处理，臭氧投加量为臭氧与COD质量比为0.5∶1，臭氧在接触氧化室的反应时间为1小时，经过臭氧预处理以后的废水进入臭氧接触氧化室上端的曝气生物滤池，曝气生物滤池停留时间为2个小时，该处理方法的COD去除率为78.4％。原进水的COD平均100mg/L，处理后COD值为21.6mg/L，具有较好的处理效果，与臭氧-曝气生物滤池方法的比较结果如下表2所示。表2显示，与背景技术中臭氧-曝气生物滤池处理方法相比，经过本实施例处理后的造纸厂废水COD含量含量由30mg/L降低到21.6mg/L；而且设备购置费用和运行成本都有较大幅度的降低。The ozone-biological aerated filter integrated water treatment method is used to carry out the depth of the secondary biochemical effluent of a paper mill wastewater, and the water volume is 10t/h. The Venturi tube used is made of stainless steel with a size of 50mm outer teeth. The ozone generation system adopts an ozone production capacity of 250g/h. The model of the ozone generator is: SOA-YW-250G. The oxygen contained in the ozone gas is 19% of the total volume. %, the ozone contact reaction chamber is cylindrical, with a total volume of about 10m 3 , a height of 0.8m, and a radius of about 2m. The total volume of the biological aerated filter is 30m 3 , a height of 3m, and a radius of about 1.8m. The ceramsite of 3-5mm is used, and the volume of the ceramsite is 18m 3 . Firstly, through ozone pretreatment, the dosage of ozone is 0.5:1 mass ratio of ozone to COD, the reaction time of ozone in the contact oxidation chamber is 1 hour, and the wastewater after ozone pretreatment enters the aerated organisms at the upper end of the ozone contact oxidation chamber The residence time of the biological aerated filter is 2 hours, and the COD removal rate of this treatment method is 78.4%. The COD of the original influent is 100mg/L on average, and the COD value after treatment is 21.6mg/L, which has a good treatment effect. The comparison results with the ozone-biological aerated filter method are shown in Table 2 below. Table 2 shows that compared with the ozone-biological aerated filter treatment method in the background technology, the paper mill wastewater COD content after the treatment of the present embodiment is reduced from 30mg/L to 21.6mg/L; and the equipment purchase cost and operation Costs are significantly reduced.
表2Table 2
实施例3Example 3
采用臭氧——曝气生物滤池一体化水处理方法对某自来水厂受污染原水进行处理，水量为10t/h。采用的文丘里管材质为不锈钢，尺寸为63mm外牙，臭氧发生系统采用臭氧产生量为12g/h，，臭氧发生器型号为：SOZ-YW-12G，臭氧气体中含氧气为总体积的20％，臭氧接触反应室为圆柱状，总体积约为10m3，高为1.5m，半径约为1.5m，曝气生物滤池总体积为15m3，高为3.3m，半径约为1.2m，滤料采用3-5mm的陶粒。臭氧投加量为臭氧与COD质量比为0.1∶1，臭氧在接触氧化室的反应时间为1小时，经过臭氧预处理以后的废水进入臭氧接触氧化室上端的曝气生物滤池，曝气生物滤池停留时间为1小时，该处理方法的COD去除率为90％。原进水的COD平均12mg/L，处理后COD值为1.2mg/L。臭氧-曝气生物滤池法与本发明处理受污染原水的试验结果对比如下表3所示。表3显示，与背景技术中臭氧-曝气生物滤池处理方法相比，经过本实施例处理后的自来水厂受污染原水COD含量含量由2mg/L降低到1.2mg/L；而且设备购置费用和运行成本都有较大幅度的降低。The ozone-biological aerated filter integrated water treatment method is used to treat the polluted raw water of a waterworks, and the water volume is 10t/h. The Venturi tube used is made of stainless steel, with a size of 63mm outer teeth. The ozone generation system adopts an ozone generation rate of 12g/h. The model of the ozone generator is: SOZ-YW-12G, and the oxygen contained in the ozone gas is 20% of the total volume. %, the ozone contact reaction chamber is cylindrical, with a total volume of about 10m 3 , a height of 1.5m, and a radius of about 1.5m. The biological aerated filter has a total volume of 15m 3 , a height of 3.3m, and a radius of about 1.2m. The filter material adopts 3-5mm ceramsite. The dosage of ozone is that the mass ratio of ozone to COD is 0.1:1, and the reaction time of ozone in the contact oxidation chamber is 1 hour. The residence time of the filter is 1 hour, and the COD removal rate of this treatment method is 90%. The average COD of the original influent water is 12mg/L, and the COD value after treatment is 1.2mg/L. The comparison of test results between the ozone-biological aerated filter method and the present invention for treating polluted raw water is shown in Table 3 below. Table 3 shows that compared with the ozone-biological aerated filter treatment method in the background technology, the COD content of the contaminated raw water of the waterworks after the treatment of the present embodiment is reduced from 2mg/L to 1.2mg/L; and the equipment purchase cost and operating costs are significantly reduced.
表3table 3
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