CN204848440U - Sewage treatment device combining anaerobic fermentation treatment and contact biological oxidation - Google Patents
Sewage treatment device combining anaerobic fermentation treatment and contact biological oxidation Download PDFInfo
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- CN204848440U CN204848440U CN201520475174.3U CN201520475174U CN204848440U CN 204848440 U CN204848440 U CN 204848440U CN 201520475174 U CN201520475174 U CN 201520475174U CN 204848440 U CN204848440 U CN 204848440U
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- anaerobically fermenting
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- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 52
- 230000003647 oxidation Effects 0.000 title claims abstract description 10
- 239000010865 sewage Substances 0.000 title abstract description 24
- 238000000855 fermentation Methods 0.000 title abstract description 12
- 230000020477 pH reduction Effects 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims description 13
- 239000002699 waste material Substances 0.000 claims description 9
- 230000003301 hydrolyzing effect Effects 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000000945 filler Substances 0.000 abstract description 10
- 230000007062 hydrolysis Effects 0.000 abstract description 9
- 238000006460 hydrolysis reaction Methods 0.000 abstract description 9
- 230000004151 fermentation Effects 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 abstract description 3
- 239000010802 sludge Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 238000005273 aeration Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 238000006396 nitration reaction Methods 0.000 description 4
- 238000011001 backwashing Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000002906 microbiologic effect Effects 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses a sewage treatment device combining anaerobic fermentation treatment and contact biological oxidation, which comprises an acidification tank (2) with hydrolysis function, an anaerobic fermentation tank (3) with fermentation function and a contact oxidation tank (10) with contact biological oxidation function; the acidification tank (2) is higher than the anaerobic fermentation tank (3), and the upper part and the lower part of the acidification tank (2) are respectively connected with the anaerobic fermentation tank (3) through a gas pipeline and a water pipeline; collecting pipelines are arranged at the bottoms of the acidification tank (2) and the anaerobic fermentation tank (3) and are used for collecting water flow and then lifting and conveying the water flow to the contact oxidation tank (10) through a lifting pump (5); more than two levels of filtering fillers are arranged in the contact oxidation tank (10), and a sludge discharge pipe (8) is arranged. The utility model discloses to the microthermal characteristics of northwest area urban sewage, solved the low problem of sewage biochemical treatment efficiency under low temperature environment.
Description
Technical field
The utility model relates to low temp area, a kind of northwest waste disposal plant, belongs to environmental engineering water-treatment technology field.
Background technology
Along with the enforcement of strategy to develop western regions and central and west regions development strategy, NORTHWEST CHINA Regional City quantity and scale significantly improve, tourism and light industry industry cluster achievement constantly advance, the raising of city numbers and scale brings pressure also to environment aspect, can not go further and " first pollute in tourist area, the northwestward, rear improvement " old road, but the Northwest's temperature is low, the Climatic issues such as the temperature difference is large constrain the application prospect of eastern region water technology in the Northwest, therefore, the basis of biochemical treatment sanitary sewage is necessary can be economical in conjunction with a set of water treatment system of local climate condition design, the device of the sanitary sewage of low temp area, effective process northwest.
Larger molecular organics is degraded into small organic molecule by anaerobic treatment, thus reaches the object of the sewage of biochemical treatment, and meanwhile, it is active that the temperature brought in anaerobic fermentation process raises the process being conducive to improving microorganism, thus improve the removal efficiency of pollutent.Biological Contact Oxidation Process good airproof performance, the biomembranous biological load that filler is formed is large, is conducive to improving sewage treatment capacity, and biological contact oxidation plant can play good heat insulation effect under suitable design under non-aeration state simultaneously.Therefore, for the Northwest's low temperature, the inefficient defect of microbiological deterioration that the temperature difference is brought greatly, designs a set of anaerobically fermenting process and contacts bio-oxidation art breading this area sewage and just seem and be extremely necessary.
Utility model content
The purpose of this utility model is for solving the problems such as the degradation rate existed in low temp area, northwest sewage disposal technology is low, provides a kind of anaerobically fermenting process and the waste disposal plant contacting bio-oxidation and combine.
The technical solution of the utility model is as follows:
The utility model is a kind of like this anaerobically fermenting process and the waste disposal plant contacting bio-oxidation and combine, it utilizes hydrolysis acidification pool to make the solvability in sewage and non-solubility larger molecular organics be degraded into small organic molecule, sewage after degradation treatment is fermented in anaerobically fermenting pond, reduce wherein COD content, the fermented liquid that fermentation produces enters contact-oxidation pool by lift pump through utilidor, produce intermittence anoxic and aerobic condition at the top-down aeration of contact-oxidation pool intermittent thus form short distance nitration and denitrification improves NH in sewage
4 +the removal effect of-N and P, water level in contact-oxidation pool overflows to receiving tank after reaching overflow height, collects water outlet finally by rising pipe.The multistage filler of filtration is set at contact-oxidation pool, when packing filter blocking reaches the head loss of setting, to the air-water backwashing that filler carries out from bottom to top after making gas and water mixing after utilizing backwashing pump and pneumatic pump to open, back flushing muddy water is discharged by shore pipe.
This anaerobically fermenting process of the present utility model is such with contacting the waste disposal plant that bio-oxidation combines, it comprised hydrolytic action acidification pool, rise fermentative action anaerobically fermenting pond and work the contact-oxidation pool contacting biological oxidation; Acidification pool position is higher than anaerobically fermenting pond, and acidification pool upper and lower is connected with anaerobically fermenting pond with water pipe respectively by gas pipe line; Be provided with conduit bottom acidification pool and anaerobically fermenting pond and be delivered to contact-oxidation pool for being promoted by lift pump after being collected by current; Be provided with the filter packing of more than secondary in contact-oxidation pool, and be provided with shore pipe.
Overflow groove and rising pipe is provided with in the upper side of contact-oxidation pool.
Have the pipeline for making gas and water mixing at contact-oxidation pool side peripheral hardware, this pipeline one end is connected on contact-oxidation pool top, and an end is connected on bottom contact-oxidation pool, and this pipeline is provided with pneumatic pump and backwash pump.
The utility model is for the feature of the Northwest's municipal effluent low temperature, to solve for the purpose of the problem that biochemical wastewater treatment usefulness is low at low ambient temperatures, the one-level emission standard A making water outlet reach " urban wastewater treatment firm pollutant emission standard (GB18918-2002) " to specify.Occurring at hydrolysis acidification pool under city domestic sewage cold condition also can hydrolytic action, and residence time 2h, pH controls 6.8 ~ 7.2.Under acidulated condition, solvability and non-solubility larger molecular organics are converted into small organic molecule, and meanwhile, the organic acid produced in hydrolytic process is conducive to the biochemical improving sewage.Fermentative action is there is in hydrolysis acidification pool water outlet in anaerobically fermenting pond, residence time 6h, there is anaerobic reaction in the organism in sewage, reach the target of organic matter removal in fermentation vat, and the broth temperature that anaerobic reaction generates raises 3 DEG C and enters contact-oxidation pool by utilidor.
The intermittent aeration of contact-oxidation pool is conducive to being formed short distance nitration and denitrification thus improves NH
4 +the removal of-N and P, the biochemical film that filling surface is formed simultaneously plays good filteration and reduces delivery turbidity, and is conducive to the purification efficiency improving sewage.
Technique effect of the present utility model:
One is that pH can be constant in 6.8 ~ 7.2 under cryogenic for hydrolysis acidification pool, and the hydrolytic action under acidified environment greatly reduces the ratio of larger molecular organics, is conducive to the purification efficiency improving whole treatment system.
Two is that the further COD of fermented liquid that anaerobically fermenting pond produces reduces greatly, and meanwhile, broth temperature improves 3 DEG C, is conducive to alleviating the disadvantageous effect of low temperature environment to microbiological deterioration.
Three is strainabilities that the multistage filler of contact-oxidation pool substantially increases filler, thus reduces delivery turbidity, and filling surface forms microbial film has very strong removal effect to BOD, COD; Intermittence aeration is conducive to short distance nitration and denitrification occur in pond, thus improves the NH of sewage
4 +the removal effect of-N and P.
Accompanying drawing explanation
Fig. 1 is apparatus structure schematic diagram of the present utility model;
Description of reference numerals: 1-water inlet pipe, 2-acidification pool, 3-anaerobically fermenting pond, 4-escape pipe, 5-lift pump, 6-rising pipe, 7-filler, 8-shore pipe, 9-backwash pump, 10-contact-oxidation pool, 11-pneumatic pump.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, the agent structure of device of the present utility model forms primarily of three parts, foremost be acidification pool 2, water inlet pipe 1 is from top access acidification pool 2, anaerobically fermenting pond 3 after acidification pool 2, be contact-oxidation pool 10 after anaerobically fermenting pond 3, rising pipe 6 is connected on the side of contact-oxidation pool 10 by an overflow groove.The device height of acidification pool 2 and liquid level, all higher than anaerobically fermenting pond 3, make the sewage in acidification pool 2 can enter anaerobically fermenting pond 3 by pipeline self.In addition, in the middle part of anaerobically fermenting pond 3, ullage in anaerobically fermenting pond 3 is accessed from acidification pool 2 Base top contact pneumatic tube.Bottom acidification pool 2 and anaerobically fermenting pond 3, be provided with funnel and pipeline fermented liquid is collected enter in a pipeline, and by lift pump 5, sewage lifting be delivered in contact-oxidation pool 10.Pipeline is provided with by-pass valve control everywhere.
The filler 7 of the filtration of more than secondary is provided with in contact-oxidation pool 10, shore pipe 8 is provided with bottom contact-oxidation pool 10, the pipeline for making gas and water mixing is provided with in contact-oxidation pool 10 side, this pipeline one end is connected on contact-oxidation pool top, one end is connected on bottom contact-oxidation pool, this pipeline is provided with pneumatic pump 11 and backwash pump 9, and backwash pump 9 is positioned at bottom, and pneumatic pump 11 is positioned at middle part.
The utility model implements like this:
City domestic sewage enters hydrolysis acidification pool 2 by water inlet pipe 1, hydrolytic action is there is in hydrolysis acidification pool 2, solvability and non-solubility larger molecular organics is made to be degraded into small organic molecule, thus improve the degradation property of pollutent at follow-up structures, meanwhile, the organic acid formed in the anaerobism production process occurred in hydrolysis acidification pool 2 is conducive to biochemical sewage Degradation.Anaerobically fermenting pond 3 is entered after hydraulic detention time 2h in hydrolysis acidification pool 2, residence time 6h in anaerobically fermenting pond 3, during the fermentation, COD reduces greatly, the gases such as the methane simultaneously generated are collected by air outlet 4, the fermented liquid that fermentation produces enters contact-oxidation pool 10 by lift pump 5 through utilidor, opens pneumatic pump 11, produces intermittence anoxic and aerobic condition thus form short distance nitration and denitrification improves NH at the top-down aeration of contact-oxidation pool 10 intermittent
4 +the removal effect of-N and P.Multistage filler 7 in contact-oxidation pool 10 improves the filteration to sewage, reduces the delivery turbidity of sewage, and the microbial film that surface is formed simultaneously is conducive to the purification efficiency improving pollutent.When packing filter blocking reaches the head loss of setting, to the air-water backwashing that filler carries out from bottom to top after backwash pump 9 and pneumatic pump 11 make gas and water mixing after opening, back flushing muddy water is discharged by shore pipe 8.In contact-oxidation pool 10 after water level reach a certain height, overflow to receiving tank, collect water outlet by rising pipe 6.
Below this waste disposal plant actual motion take off data table:
Certainly, more than just embody rule example of the present utility model, the technical scheme that the utility model also has other embodiment, all employings to be equal to replacement or equivalent transformation to be formed, all drops within the protection domain required by the utility model.
Claims (3)
1. anaerobically fermenting process and the waste disposal plant contacting bio-oxidation and combine, is characterized in that: it comprised hydrolytic action acidification pool (2), play the anaerobically fermenting pond (3) of fermentative action and to contact the contact-oxidation pool (10) of biological oxidation; Acidification pool (2) position is higher than anaerobically fermenting pond (3), and acidification pool (2) upper and lower is connected with anaerobically fermenting pond (3) with water pipe respectively by gas pipe line; Acidification pool (2) and anaerobically fermenting pond (3) bottom are provided with conduit and are delivered to contact-oxidation pool (10) by lift pump (5) lifting after being collected by current; Be provided with the filter packing of more than secondary in contact-oxidation pool (10), and be provided with shore pipe (8).
2. anaerobically fermenting process according to claim 1 and the waste disposal plant contacting bio-oxidation and combine, is characterized in that: be provided with overflow groove and rising pipe (6) in the upper side of contact-oxidation pool (10).
3. anaerobically fermenting process according to claim 2 and the waste disposal plant contacting bio-oxidation and combine, it is characterized in that: have the pipeline for making gas and water mixing at contact-oxidation pool (10) side peripheral hardware, this pipeline one end is connected on contact-oxidation pool (10) top, one end is connected on contact-oxidation pool (10) bottom, and this pipeline is provided with pneumatic pump (11) and backwash pump (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520475174.3U CN204848440U (en) | 2015-07-06 | 2015-07-06 | Sewage treatment device combining anaerobic fermentation treatment and contact biological oxidation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520475174.3U CN204848440U (en) | 2015-07-06 | 2015-07-06 | Sewage treatment device combining anaerobic fermentation treatment and contact biological oxidation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204848440U true CN204848440U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520475174.3U Active CN204848440U (en) | 2015-07-06 | 2015-07-06 | Sewage treatment device combining anaerobic fermentation treatment and contact biological oxidation |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036331A (en) * | 2015-07-06 | 2015-11-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Northwest low-temperature area sewage treatment method and device |
| CN107954515A (en) * | 2017-11-08 | 2018-04-24 | 河南师范大学 | The combination unit and its operation method of a kind of sewage purification, Treatment of Sludge and energy recovery |
-
2015
- 2015-07-06 CN CN201520475174.3U patent/CN204848440U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036331A (en) * | 2015-07-06 | 2015-11-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Northwest low-temperature area sewage treatment method and device |
| CN107954515A (en) * | 2017-11-08 | 2018-04-24 | 河南师范大学 | The combination unit and its operation method of a kind of sewage purification, Treatment of Sludge and energy recovery |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |