CN202953909U - Stacked biological denitrification sewage treatment device - Google Patents
Stacked biological denitrification sewage treatment device Download PDFInfo
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- CN202953909U CN202953909U CN 201220669348 CN201220669348U CN202953909U CN 202953909 U CN202953909 U CN 202953909U CN 201220669348 CN201220669348 CN 201220669348 CN 201220669348 U CN201220669348 U CN 201220669348U CN 202953909 U CN202953909 U CN 202953909U
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- Prior art keywords
- pond
- sewage treatment
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- anoxic
- anoxic pond
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- 239000010865 sewage Substances 0.000 title abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000010802 sludge Substances 0.000 claims abstract description 9
- 238000010992 reflux Methods 0.000 claims description 10
- 238000004062 sedimentation Methods 0.000 claims description 9
- 239000002699 waste material Substances 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 26
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052799 carbon Inorganic materials 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 6
- 230000009466 transformation Effects 0.000 abstract description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract 1
- 239000011259 mixed solution Substances 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 3
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000010841 municipal wastewater Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses a stacked biological denitrification sewage treatment device. The stacked biological denitrification sewage treatment device comprises a primary settling tank and a stacked system formed by cross series connection of a plurality of groups of anoxic tanks and aerobic tanks, wherein the primary settling tank is connected with the head end of each group of the anoxic tanks through a water distribution system, and the last group of the aerobic tanks is communicated with a secondary settling tank; and the secondary settling tank is connected with the head end of the first group of the anoxic tanks through a sludge backflow system. The stacked biological denitrification sewage treatment device disclosed by the utility model can fully utilize an organic carbon source in raw sewage, saves a backflow facility in nitrification liquor, saves energy, reduces tank volume, reduces capital construction cost and further realizes high denitrification efficiency, is suitable for high ammonia-nitrogen sewage treatment projects of new construction, transformation and extension, as well as municipal sewage treatment projects, and can reduce the scoring of sludge at flood peak discharge, enhances the resistance to impact load of a system, saves capital construction and operation cost and improves the removal efficiency of total nitrogen.
Description
Technical field
The utility model belongs to high-ammonia-nitrogen sewage and municipal wastewater processing technology field, relates in particular to a kind of superposing type biological denitrificaion waste disposal plant.
Background technology
Along with the increasingly stringent of sewage drainage standard, sewage treatment facility need to have efficient denitrification functions.In State Environmental Protection Administration's " about notice of strict implement " urban wastewater treatment firm pollutant emission standard " ", while proposing to enter the enclosed waters such as country and the major river valley of economizing and lake, reservoir, should carry out the standard of one-level A.So carry in the mark transformation process in newly-built sewage treatment project and old Sewage Plant, total nitrogen becomes the restrictive factor of a lot of sewage disposal plant effluent qualified discharges.
Traditional anoxic/aerobic (A/O) sewage treatment process, need to arrange nitrification liquid internal reflux facility, increases capital construction and working cost, and need to add carbon source in the situation that former water C/N is lower, increases medicament expense and use.
The utility model content
The purpose of this utility model is to be to provide a kind of superposing type high-efficiency biological denitrification waste disposal plant, overcome traditional waste water treatment process and improve technique internal reflux amount large, need carbon source to add etc. to cause capital construction and the high problem of working cost, and improve the removal efficiency of sewage treatment facility to total nitrogen.
For achieving the above object, the technical solution adopted in the utility model is:
Superposing type biological denitrificaion waste disposal plant, comprise preliminary sedimentation tank and the overlapping system be composed in series by many groups anoxic pond and Aerobic Pond intersection, and preliminary sedimentation tank is connected with every group of anoxic pond head end by water distribution system, and end group Aerobic Pond is communicated with second pond; Second pond is connected with first group anoxic pond head end by the sludge reflux system.
Be provided with zone of transition in described Aerobic Pond rear end and anoxic pond front end, zone of transition adopts the baffling mode to mix.
Described Aerobic Pond bottom is provided with aerating system, on aerating system air inlet branch road, gas meter and gas flow regulating valve is set; Be provided with stirring system in anoxic pond.
Described water distribution system consists of distributing flue and flashboard.
In the utility model, the preliminary sedimentation tank water outlet distributes the flooding quantity of different anoxic pond front ends by water distribution system, denitrifying bacterium takes full advantage of in raw waste water organic carbon source as electron donor, and the nitric nitrogen that the mixed solution that returned sluge and front end Aerobic Pond are flowed into is entrained and nitrite nitrogen are reduced to nitrogen and carry out denitrogenation; The front end Aerobic Pond carries the nitric nitrogen mixed solution and flows into the rear end anoxic pond, and anoxic pond and Aerobic Pond intersect overlapped in series, and the internal reflux facility of mixed solution need not be set; The utility model takes full advantage of the organic carbon source in raw waste water, has saved nitrification liquid internal reflux facility, and save energy, reduced the pond appearance, reduces capital cost, and has efficient nitric efficiency.
The utility model is applicable to high-ammonia-nitrogen sewage and municipal wastewater newly-built and that change, extend and processes engineering, washing away mud when application the utility model can reduce peak discharge, the anti impulsion load ability of enhanced system, save capital construction and working cost, improves the removal efficiency of total nitrogen.
The accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the vertical view of Fig. 1.
Embodiment
As shown in Figure 1 and Figure 2, superposing type biological denitrificaion waste disposal plant, comprise preliminary sedimentation tank 1 and the overlapping system be composed in series by many groups anoxic pond 3,5,7,9 and Aerobic Pond 4,6,8,10 intersections, preliminary sedimentation tank 1 is connected with the head end of every group of anoxic pond 3,5,7,9 by water distribution system 2, and end group Aerobic Pond 10 is communicated with second pond 12; Second pond 12 is connected with first group anoxic pond 3 head ends by sludge reflux system 13.Be provided with zone of transition 16,17,18 in Aerobic Pond 4,6,8 rear ends and anoxic pond 5,7,9 front ends, centre arranges partition wall 19, adopt the baffling hybrid mode to mix, minimizing is along with mixed solution enters the dissolved oxygen content of follow-up oxygen-starved area, make denitrifying bacterium keep higher activity, effectively remove nitric nitrogen.Described Aerobic Pond 4,6,8,10 bottoms are provided with aerating system 14, gas meter and gas flow regulating valve are set on aerating system 14 air inlet branch roads, and (this is prior art, in figure, do not show), regulate charge flow rate, at the interior on-line monitoring equipment that dissolved oxygen, pH and specific conductivity are set of Aerobic Pond 4,6,8,10, regulate aeration rate according to real-time monitoring data, save the energy, and reduce the impact of dissolved oxygen on follow-up anoxic pond; The interior whipping device (this is prior art, does not show in figure) that arranges of anoxic pond 3,5,7,9, evenly mix new sewage and the muddy water mixed solution flowed into, the carbon source that takes full advantage of former water is carried out anti-nitration reaction, remove nitric nitrogen, save medicament expense use, carry out efficient denitrification.Described water distribution system 2 consists of distributing flue and flashboard that (this is for prior art, in figure, do not show), can be according to the proportioning of pollutant load and various pollutents differently adopt flexibly different traffic distribution strategies, regulate the flooding velocity of different anoxic pond 3,5,7,9, reach efficient nitric efficiency.Flooding velocity can be regulated by inlet channel and flashboard.
In the utility model, anoxic pond 3,5,7,9 and Aerobic Pond 4,6,8,10 intersection overlapping systems, the group number of connecting that intersects can be n, and the group number is more, and nitric efficiency is higher; 3～5 groups of operated by rotary motion.
During the utility model work, sewage is dispensed to the head end of the every group of anoxic pond 3,5,7,9 in the overlapping system be composed in series by many groups anoxic pond 3,5,7,9 and Aerobic Pond 4,6,8,10 intersections by water distribution system 2 through preliminary sedimentation tank 1, the sequence of flow of sewage is first group of anoxic pond 3 and Aerobic Pond 4, second group of anoxic pond 5 and Aerobic Pond 6, until last group anoxic pond 9 and Aerobic Pond 10, finally the water outlet 11 by end group Aerobic Pond 10 flows into second pond 12; At second pond 12, after mud-water separation, water outlet drains into water outlet, and a mud part is back to the head end of first group anoxic pond 3 through sludge reflux system 13, and remainder mud drains into sludge dewatering treatment system through mud discharging system 15.Be provided with zone of transition 16,17,18 in Aerobic Pond 4,6,8 rear ends and anoxic pond 5,7,9 front ends, centre arranges partition wall 19, adopt the baffling hybrid mode to mix, minimizing is along with mixed solution enters the dissolved oxygen content of follow-up oxygen-starved area, make denitrifying bacterium keep higher activity, effectively remove nitric nitrogen.
In the utility model, the dissolved oxygen content of anoxic pond is 0.2～0.5mg/L, and the dissolved oxygen content of Aerobic Pond is 2mg/L.The return sludge ratio of sludge reflux system is 50～100%, is back to the head end of first group anoxic pond, from top, injects, and proceeds denitrogenation after water inlet mixes.
In the utility model, preliminary sedimentation tank 1 water outlet distributes the flooding quantity of different anoxic pond 3,5,7,9 front ends by water distribution system 2, denitrifying bacterium takes full advantage of in raw waste water organic carbon source as electron donor, and the nitric nitrogen that the mixed solution that returned sluge and front end Aerobic Pond 4,6,8,10 are flowed into is entrained and nitrite nitrogen are reduced to nitrogen and carry out denitrogenation.The nitric nitrogen mixed solution that carries of front end Aerobic Pond 4,6,8 flows into rear end anoxic pond 5,7,9, so the internal reflux facility of mixed solution need not be set.
Claims (4)
1. superposing type biological denitrificaion waste disposal plant, is characterized in that, comprises preliminary sedimentation tank and the overlapping system be composed in series by many groups anoxic pond and Aerobic Pond intersection, and preliminary sedimentation tank is connected with every group of anoxic pond head end by water distribution system, and end group Aerobic Pond is communicated with second pond; Second pond is connected with first group anoxic pond head end by the sludge reflux system.
2. superposing type biological denitrificaion waste disposal plant as claimed in claim 1, is characterized in that, in described Aerobic Pond rear end and anoxic pond front end, is provided with zone of transition, and zone of transition adopts the baffling mode to mix.
3. superposing type biological denitrificaion waste disposal plant as claimed in claim 1 or 2, is characterized in that, described Aerobic Pond bottom is provided with aerating system, on aerating system air inlet branch road, gas meter and gas flow regulating valve is set; Be provided with stirring system in anoxic pond.
4. superposing type biological denitrificaion waste disposal plant as claimed in claim 3, is characterized in that, described water distribution system consists of distributing flue and flashboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220669348 CN202953909U (en) | 2012-12-07 | 2012-12-07 | Stacked biological denitrification sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220669348 CN202953909U (en) | 2012-12-07 | 2012-12-07 | Stacked biological denitrification sewage treatment device |
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| Publication Number | Publication Date |
|---|---|
| CN202953909U true CN202953909U (en) | 2013-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220669348 Expired - Fee Related CN202953909U (en) | 2012-12-07 | 2012-12-07 | Stacked biological denitrification sewage treatment device |
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| CN (1) | CN202953909U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110642478A (en) * | 2019-10-31 | 2020-01-03 | 中冶南方都市环保工程技术股份有限公司 | Coupled treatment system and method for coking phenol-cyanogen wastewater by biochemical method and physicochemical method |
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2012
- 2012-12-07 CN CN 201220669348 patent/CN202953909U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110642478A (en) * | 2019-10-31 | 2020-01-03 | 中冶南方都市环保工程技术股份有限公司 | Coupled treatment system and method for coking phenol-cyanogen wastewater by biochemical method and physicochemical method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161228 Address after: No. 66 Dongsheng Technology Park in Beijing City, Haidian District road 100192 west mouth (Northern Territory) D District No. 2 Building 4 layer Patentee after: CSD WATER SERVICE CO., LTD. Address before: 454150 Henan, Shanyang District People's road, International Trade Building or Cetra Building, building, the south side of the newspaper on the south side of the 10 floor Patentee before: Jiaozuo Zhongchi Water Service Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20201207 |
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| CF01 | Termination of patent right due to non-payment of annual fee |