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CN208700827U - A kind of biological-chemical processing unit for organic wastewater with difficult degradation thereby - Google Patents

A kind of biological-chemical processing unit for organic wastewater with difficult degradation thereby Download PDF

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Publication number
CN208700827U
CN208700827U CN201820077185.XU CN201820077185U CN208700827U CN 208700827 U CN208700827 U CN 208700827U CN 201820077185 U CN201820077185 U CN 201820077185U CN 208700827 U CN208700827 U CN 208700827U
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China
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layer
biological
sand filter
reaction layer
chemical
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Expired - Fee Related
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CN201820077185.XU
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Chinese (zh)
Inventor
俞映倞
程浩
薛利红
杨林章
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Jiangsu Yanjiang Agricultural Science Research Institute
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Jiangsu Yanjiang Agricultural Science Research Institute
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  • Biological Treatment Of Waste Water (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

本实用新型提供一种用于难降解有机废水的生物‑化学处理装置,包括砂滤池、位于砂滤池后端的地埋坑体;地埋坑体自上而下设置四层,分别为分散层、生物反应层、化学反应层和蓄水层。新的装置中化学处理不存在二次污染同时能够促进生物过程。采用模块化装置,为难降解有机废水的处理提供新的途径,进一步提升污水处理出水指标,实现污水零排放的目标。

The utility model provides a biological-chemical treatment device for refractory organic waste water, comprising a sand filter tank and an underground pit body located at the rear end of the sand filter tank; the underground pit body is provided with four layers from top to bottom, which are respectively dispersed layer, biological reaction layer, chemical reaction layer and aquifer. The chemical treatment in the new device has no secondary pollution and can promote biological processes. The modular device is adopted to provide a new way for the treatment of refractory organic wastewater, further improve the effluent index of sewage treatment, and achieve the goal of zero discharge of sewage.

Description

A kind of biological-chemical processing unit for organic wastewater with difficult degradation thereby
Technical field
The utility model relates to concentrates in the device of organic wastewater with difficult degradation thereby in Environment control engineering and various water harnessings Controlling device, specially promote Recalcitrant chemicals to be decomposed into small molecule contaminants using chemical energy, then pass through the micro- life of environment Object acts on degradation of contaminant, finally realizes zero release of pollutant.
Background technique
Water pollution control technology is continued to develop since the industrial revolution, has been formed already using biochemical method as core, together When combine new material development, also gradually develop membrane separation technique, the previous mature technology of the optimizations such as electrochemical techniques.Water is dirty at present Dye administer in there are still the problem of be conventional biochemical treatment process and now more universal membrane bioreactor (MBR) work Skill technology can not completely remove pollutant or right in experience high-concentration sewage such as landfill leachate, the objects such as particular industry waste water The concentrate method generated in processing is few.
Organic wastewater and inorganic wastewater can be classified as according to pollutant component in high-concentration sewage, for most of inorganic The processing of waste water, due to the natural quality of bioprocess, generally mostly with physico-chemical process flocculating setting or rich absorbent.But it is right In the processing of high concentrated organic wastewater, then can be broken by electrochemical method, chemical oxidation method etc. organic matter long-chain or Direct chemical digesting organic matter forms other small-molecule substances.More research institute's approval method has Fenton reagent, Fenton iron Salt method, electrolysis method, ozone oxidation etc. serial of methods, high concentration, which is all extremely effectively treated, in these methods in theoretical degree has Machine waste water, or even also there is very good effect to the processing of some high concentration inorganic wastewaters.
New method is merely using these methods in greatest problem present on practical application, and cost is difficult to control.Therefore The utility model is directed to the improvement of high concentrated organic wastewater, proposes mature chemical method is square in conjunction with traditional biological method Formula forms the device that more market receives.
Utility model content
For the processing for solving organic wastewater with difficult degradation thereby, the utility model proposes a kind of lifes for organic wastewater with difficult degradation thereby Object-chemical processing device promotes Recalcitrant chemicals to be decomposed into small molecule contaminants, then passes through environmental microorganism using chemical energy Degradation of contaminant is acted on, finally realizes zero release of pollutant.
The utility model is by taking the concentrate of landfill leachate or tail water processing as an example.The processing technology routine of the utility model Be divided into two steps: first step is chemical treatment step, breaks the chemical bond of high concentration organic contaminant by chemical method Protection, second step is biological treatment step, handles degradation of contaminant concentration by traditional biological, simultaneously because difficult decomposition is organic Object is fully processed, and can be realized complete processing.
The process route chart of concentrate or tail water processing for landfill leachate is shown in Fig. 1, and waste water to be processed is main in Fig. 1 By retention section I and retention section II.Retaining section I is biological processing section, and retention section II is chemical treatment section.
Biological treatment section will be continually fed into air or purity oxygen, provide the oxygen molecule needed for biology aerobic decomposes;Chemistry Processing section is continually fed into ozone, and ozone has extremely strong oxidation, can break organic-matter chemical key protection.
The purpose that chemical treatment section is placed in biological treatment section rear end is because ozone is equally made microorganism by sterilization With, therefore it is placed in rear end and can be avoided micropopulation and coerced, while biological treatment section is placed in front end, carbon source in water, Nitrogen source can ensure microorganism decomposition process.
It is arranged by reflux, it can be ensured that ozone natural decomposition is oxygen, forms oxygen saturation mixed flow and supplements biological section Oxygen, carbon source, nitrogen source demand.Reflux ratio is controlled, is to realize the regulatable key factor of technique.
The utility model passes through " buried biological-chemical processing unit " (i.e. a kind of life for organic wastewater with difficult degradation thereby Object-chemical processing device) show technique application method: Fig. 2 is " buried biological-chemical processing unit " longitudinal procedure figure.
A kind of biological-chemical processing unit for organic wastewater with difficult degradation thereby, including sand filter, positioned at sand filter rear end Buried pit body;Four layers, respectively dispersion layer, biological respinse layer, chemically reactive layer and aquifer are arranged in buried pit body from top to bottom.
Biological respinse layer is charcoal or active carbon layer, the first gas-guide tube of interior laying in biological respinse layer, the first gas-guide tube It is connected to air pump or oxygen generator, blowing air or oxygen in the first gas-guide tube.
Chemically reactive layer is charcoal or active carbon layer, and the second gas-guide tube is laid in chemically reactive layer, and the second gas-guide tube connects Lead to ozone generator, leads to ozone in the second gas-guide tube.
Sand filter is multistage sand filter, fills sandy gravel stratum in sand filter, gravel particles 1-2mm, the height of sand filter by Grade reduces.
Dispersion layer is stone layer (rubble gravel bed), and chad particle is 20-200mm cobble in dispersion layer.Aquifer is multilayer Waterproof plastic plate.It is isolated between biological respinse layer and chemically reactive layer, between chemically reactive layer and aquifer with geotextiles. The charcoal or active carbon layer of biological respinse layer are equipped with immobilized microorganism.Ozone intermittence is released in the chemically reactive layer It puts.Outlet pipe connects chemically reactive layer bottom and sand filter.
Water first passes around multistage sand filter removal solid impurity, reduces solid impurity to ozone unnecessary consumption.By sand After the filtering in filter tank, water is entered in buried pit body by pipeline, and four layers, respectively dispersion layer are arranged in pit body from top to bottom, raw Object conversion zone, chemically reactive layer and aquifer.Dispersion layer is laid with common stones, it is therefore an objective to (1) make water distribution more equal It is even, (2) between water and gas time of contact it is longer.Biological respinse layer and chemically reactive layer are laid with charcoal or active carbon, Charcoal or active carbon have extremely strong adsorptivity, realize the retention of sewage, interior laying gas-guide tube in biological respinse layer, by common Air pump or oxygen generator generate air or oxygen;It is laid with gas-guide tube in chemically reactive layer, ozone is generated by ozone generator.It stores Water layer is water tether layer after processing, is the waterproof plastic plate of multilayer.Level is directly with the isolation of common geotextiles.
Gravel particles are 1-2mm gravel in the sand filter, can suitably increase sand grains rugosity according to infiltration rate, or reduce Gravel series.Chad particle is 20-200mm cobble in the dispersion layer.It can be mixed into immobilization in advance in the biological respinse layer Microbial material, to maintain biological reactions rates to stablize.Ozone is released to intermittent release in the chemically reactive layer.
Compared with the existing technology, the utility model has the advantage that
1, technique is grafted strong, and technique core is biological respinse, chemically reacts to break the chemical key protection of pollutant, because This can be applied under a variety of situations, can be individually formed process flow, or as collateral branch's process supplement other process routes it In.
2, implementation pattern is varied, and device described in the utility model is the buried process of simple type, material It is easy to get, Project Realization is simple, does not have secondary pollution risk.
3, technique investment is cheap compared to more simple chemical treatment, and utility model device core is microbial process, Reaction condition satisfies the requirements down, does not need additional energy investment.
Detailed description of the invention
Fig. 1 is the utility model process route chart;
Fig. 2 is with " buried biological-chemical processing unit " composition schematic diagram;
1. sand filter in figure, 2. water distributors, 3. dispersion layers, 4. biological respinse layers, 5. geotextiles, 6. aquifers, 7. air guides Pipe, 8. air pumps, 9. ozone generators, 10. outlet pipes, 11 chemically reactive layer;
Fig. 3 is with " buried biological-chemical processing unit " air water trend graph;
Real segment is processing water trend, and phantom line segments are gas trend.
Specific embodiment
Utility model will be further explained below with reference to the attached drawings and specific embodiments.
The process route chart of concentrate or tail water processing for landfill leachate is shown in Fig. 1, and waste water to be processed is main in Fig. 1 By retention section I and retention section II.Retaining section I is biological processing section, and retention section II is chemical treatment section.
Biological treatment section will be continually fed into air or purity oxygen, provide the oxygen molecule needed for biology aerobic decomposes;Chemistry Processing section is continually fed into ozone, and ozone has extremely strong oxidation, can break organic-matter chemical key protection.
Chemical treatment section be placed in biological treatment section purpose be because, ozone for microorganism equally by bactericidal effect, Therefore it is placed in rear end and can be avoided micropopulation and coerced, while biological section is placed in front end, the carbon source, nitrogen source in water can Ensure microorganism decomposition process.
It is arranged by reflux, it can be ensured that ozone natural decomposition is oxygen, forms oxygen saturation mixed flow and supplements biological section Oxygen, carbon source, nitrogen source demand.Reflux ratio is controlled, is to realize the regulatable key factor of technique.
The utility model shows the application method of technique by " buried biological-chemical processing unit ": Fig. 2 is " buried Formula biological-chemical processing unit " longitudinal procedure figure.Fig. 3 is with " buried biological-chemical processing unit " air water trend graph.
A kind of biological-chemical processing unit for organic wastewater with difficult degradation thereby, including sand filter 1, be located at sand filter rear end Buried pit body;Four layers, respectively dispersion layer 3, biological respinse layer 4,11 and of chemically reactive layer are arranged in buried pit body from top to bottom Aquifer 6.
Biological respinse layer is charcoal or active carbon layer, the first gas-guide tube of interior laying in biological respinse layer, the first gas-guide tube It is connected to air pump 8 or oxygen generator, blowing air or oxygen in the first gas-guide tube.
Chemically reactive layer is charcoal or active carbon layer, and the second gas-guide tube is laid in chemically reactive layer, and the second gas-guide tube connects Lead to ozone generator 9, leads to ozone in the second gas-guide tube.
Sand filter is multistage sand filter (being three-level sand filter in Fig. 2), fills sandy gravel stratum, gravel particles 1- in sand filter The height of 2mm, sand filter reduce step by step.Dispersion layer is stone layer (rubble gravel bed), and chad particle is 20-200mm in dispersion layer Cobble.Aquifer is the waterproof plastic plate of multilayer.Between biological respinse layer and chemically reactive layer, chemically reactive layer and aquifer Between with geotextiles 5 be isolated.The charcoal or active carbon layer of biological respinse layer are equipped with immobilized microorganism.The chemical reaction Ozone intermittence release in layer.Outlet pipe 10 connects chemically reactive layer bottom and sand filter (to form reflux, treated water It is again introduced into sand filter).
Water first passes around multistage sand filter removal solid impurity, reduces solid impurity to ozone unnecessary consumption.By sand After the filtering in filter tank, water is entered in buried pit body by pipeline (water distributor 2), and buried pit body is arranged four layers from top to bottom, point It Wei not dispersion layer, biological respinse layer, chemically reactive layer and aquifer.Dispersion layer is laid with common stones, it is therefore an objective to (1) be made Water distribution is more uniform, (2) between water and gas time of contact it is longer.Biological respinse layer and chemically reactive layer are with charcoal or active carbon It is laid with, charcoal or active carbon have extremely strong adsorptivity, realize the retention of sewage, interior laying air guide in biological respinse layer Pipe 7 generates air or oxygen by common air pump or oxygen generator;Gas-guide tube 7 is laid in chemically reactive layer, by ozone generator Generate ozone.Aquifer is water tether layer after processing, is the waterproof plastic plate of multilayer.Between level with common geotextiles every From.
Gravel particles are 1-2mm gravel in the sand filter, can suitably increase sand grains rugosity according to infiltration rate, or reduce Gravel series.Chad particle is 20-200mm cobble in the dispersion layer.It can be mixed into immobilization in advance in the biological respinse layer Microbial material, to maintain biological reactions rates to stablize.Ozone is released to intermittent release in the chemically reactive layer.
The above is only the preferred embodiment of the utility model, it should be pointed out that: for the common skill of the art For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and Retouching also should be regarded as the protection scope of the utility model.

Claims (1)

1.一种用于难降解有机废水的生物-化学处理装置,其特征在于,包括砂滤池、位于砂滤池后端的地埋坑体;地埋坑体自上而下设置四层,分别为分散层、生物反应层、化学反应层和蓄水层;生物反应层为生物炭或活性炭层,生物反应层中内铺设第一导气管,第一导气管连通气泵或氧气发生器,第一导气管内通空气或氧气;化学反应层为生物炭或活性炭层,化学反应层内铺设第二导气管,第二导气管连通臭氧发生器,第二导气管内通臭氧;砂滤池为多级砂滤池,砂滤池内填充砂砾层,砂砾颗粒为1-2mm,砂滤池的高度逐级降低;分散层为石头层,分散层中石砾颗粒为20-200mm卵石;蓄水层为多层不透水塑料板材;生物反应层和化学反应层之间、化学反应层与蓄水层之间用土工布隔离;生物反应层的生物炭或活性炭层搭载有固定化微生物;所述化学反应层中臭氧间歇性释放;出水管连接化学反应层底部和砂滤池以形成回流,经过处理的水再次进入砂滤池。1. a biological-chemical treatment device for refractory organic waste water, is characterized in that, comprises sand filter tank, the buried pit body positioned at the back end of sand filter tank; The buried pit body is provided with four layers from top to bottom, respectively. It is a dispersion layer, a biological reaction layer, a chemical reaction layer and an aquifer layer; the biological reaction layer is a biological charcoal or activated carbon layer, and a first air duct is laid in the biological reaction layer, and the first air duct is connected to the air pump or oxygen generator. Air or oxygen is passed through the trachea; the chemical reaction layer is a biochar or activated carbon layer, a second trachea is laid in the chemical reaction layer, the second trachea is connected to the ozone generator, and the second trachea is filled with ozone; Grade sand filter, the sand filter is filled with a sand and gravel layer, the sand and gravel particles are 1-2mm, and the height of the sand filter is gradually reduced; the dispersion layer is a stone layer, and the stone and gravel particles in the dispersion layer are 20-200mm pebbles; the aquifer is Multi-layer impermeable plastic sheet; between the biological reaction layer and the chemical reaction layer, and between the chemical reaction layer and the water storage layer are separated by geotextiles; the biochar or activated carbon layer of the biological reaction layer is carried with immobilized microorganisms; the chemical reaction The ozone in the layer is intermittently released; the outlet pipe connects the bottom of the chemical reaction layer and the sand filter to form a backflow, and the treated water enters the sand filter again.
CN201820077185.XU 2018-01-17 2018-01-17 A kind of biological-chemical processing unit for organic wastewater with difficult degradation thereby Expired - Fee Related CN208700827U (en)

Priority Applications (1)

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CN201820077185.XU CN208700827U (en) 2018-01-17 2018-01-17 A kind of biological-chemical processing unit for organic wastewater with difficult degradation thereby

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820077185.XU CN208700827U (en) 2018-01-17 2018-01-17 A kind of biological-chemical processing unit for organic wastewater with difficult degradation thereby

Publications (1)

Publication Number Publication Date
CN208700827U true CN208700827U (en) 2019-04-05

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Granted publication date: 20190405