CN204727718U - Sewage treatment systems - Google Patents
Sewage treatment systems Download PDFInfo
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- CN204727718U CN204727718U CN201520151592.7U CN201520151592U CN204727718U CN 204727718 U CN204727718 U CN 204727718U CN 201520151592 U CN201520151592 U CN 201520151592U CN 204727718 U CN204727718 U CN 204727718U
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Abstract
The utility model relates to a kind of Sewage treatment systems, and described Sewage treatment systems comprises: pre-anoxic pond, is connected with inlet channel, and the anoxic denitrification for returned sluge and sewage reacts; Anaerobic pond, is connected with described inlet channel, and is conducted with described pre-anoxic pond, for carrying out anaerobic phosphorus release during biochemical dephosphorization; Anoxic pond, is connected with described inlet channel, and is conducted, for denitrification denitrogenation with described anaerobic pond; Aerobic Pond, is conducted with described anoxic pond, for the absorption of organic matter degradation, organonitrogen and Ammonia Nitrification, phosphorus; Rear anoxic pond, is conducted with described Aerobic Pond, for simultaneous nitrification-denitrification process; Sequence batch (inclined-plate clarifying basin, is conducted with rear anoxic pond, concentrated for mud-water separation process and returned sluge, and described returned sluge is back to described pre-anoxic pond.The advantage of the utility model Sewage treatment systems is the comprehensive of reactive system and handiness, the various water quality of generally adaptation that can be flexible and changeable and processing requirements.
Description
Technical field
The utility model relates to a kind of Sewage treatment systems, particularly relates to a kind of urban sewage treatment system.
Background technology
Sewage disposal technology can be divided into physical processing techniques, physical chemistry treatment technology, biochemistry treatment technology and chemical treatment method in general, wherein conventional with the biochemistry treatment technology of sewage.Biochemical processing also has a variety of, mainly classifies according to the different situations of microbial growth condition and offering oxygen way.Biological treatment will reach denitrogenation dephosphorizing object just in the space of reactor or must create anaerobism, anoxic, the region such as aerobic the time, to realize multi-form anaerobic-aerobic dephosphorization, aerobic-anaerobic denitrogenation, required hydraulic detention time is longer, some technique reaches more than 12 hours, and capital cost and working cost are all higher.Generally use biological denitrification phosphorous removal technique in the world at present, conventional has: conventional anaerobic/anoxic/aerobic process (A/A/O technique).Several chief cities sewage treatment process is as follows:
(1) A/A/O and improved technology thereof
Along with constantly increasing the weight of of body eutrophication, the nitrogen phosphorus emission standard of effluent of municipal sewage plant is more and more higher, the denitrification dephosphorization technique be most widely used at present is A/A/O and improved technology thereof, this technique forms primarily of anaerobic pond, anoxic pond, Aerobic Pond and second pond, better to organic pollution materials and suspended solids removal effect, but there are following shortcomings: 1. the removal effect of nitrogen and phosphorus is unstable; 2. the change of the influent quality water yield is larger on operating performance impact; 3. design hydraulic detention time longer, working cost is higher.
(2) SBR and modification technique thereof
SBR and modification technique thereof are in time series, realize anaerobism, anoxic and aerobic thus reach denitrogenation dephosphorizing function, reaction and precipitation process concentrate in a pond body and complete, there are process structures few, take up an area little, the features such as flexible operation, but it also has some shortcomings: and 1. SBR and modification technique thereof all use water decanter, by water decanter water outlet quantitative limitation, single pond process water yield can not be very large, therefore this technique is not suitable for large-scale wastewater treatment plant; 2. reactor volume utilization ratio is low, and head loss is large; 3. system device utilization ratio is low, controls complicated; 4. affect by the reaction times, anaerobism, anoxic and aerobic reaction conditions can not be ensured completely; 5. water outlet is discontinuous, subsequent disposal difficulty.
(3) UNITANK technique
UNITANK technique is in fact very similar with three working position technique, although can save second pond and sludge recirculation system, they exist 1. unobvious independently anaerobism, anoxic zones, thus affect Nitrogen/Phosphorus Removal; 2. in reaction tank, sludge concentration is uneven, and in the later stage of reaction time, influent side sludge concentration is low, and precipitation side sludge concentration is high, and 3. UNITANK processing unit platform tricks is many, and plant factor is low, controls complicated; 4. effluent weir is fixed, and initial stage aquifer yield is difficult to determine, and needs reflow treatment.
Summary of the invention
The purpose of this utility model is the defect for prior art, provides a kind of Sewage treatment systems, the biochemical municipal sewage treatment of the integral type that generally can adapt to various water quality and processing requirements that can be flexible and changeable.
For achieving the above object, the utility model provides a kind of Sewage treatment systems, and described Sewage treatment systems comprises:
Pre-anoxic pond, is connected with inlet channel, and the anoxic denitrification for returned sluge and sewage reacts;
Anaerobic pond, is connected with described inlet channel, and is conducted with described pre-anoxic pond, for carrying out anaerobic phosphorus release during biochemical dephosphorization;
Anoxic pond, is connected with described inlet channel, and is conducted, for denitrification denitrogenation with described anaerobic pond;
Aerobic Pond, is conducted with described anoxic pond, for the absorption of organic matter degradation, organonitrogen and Ammonia Nitrification, phosphorus;
Rear anoxic pond, is conducted with described Aerobic Pond, for simultaneous nitrification-denitrification process;
Sequence batch (inclined-plate clarifying basin, is conducted with rear anoxic pond, concentrated for mud-water separation process and returned sluge, and described returned sluge is back to described pre-anoxic pond.
Further, described Aerobic Pond top has the first water hole, and described Aerobic Pond is conducted by described first water hole and described rear anoxic pond.
Further, described rear anoxic pond bottom has the second water hole, and described rear anoxic pond is conducted by described second water hole and described sequence batch (inclined-plate clarifying basin.
Further, described system also comprises wall plug-flow pump, and the mixed solution in described Aerobic Pond passed through wall plug-flow pump reflux to anoxic pond.
Further, described water inlet is respectively injected pre-anoxic pond, anaerobic pond, anoxic pond by 0 ~ 10%, 80 ~ 50%, 20 ~ 40% (this allocation proportion can adjust flexibly according to water quality) by described inlet channel by described water inlet or is injected anaerobic pond, anoxic pond respectively or only inject anaerobic pond.
The advantage of the utility model Sewage treatment systems is the comprehensive of reactive system and handiness, the various water quality of generally adaptation that can be flexible and changeable and processing requirements.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model Sewage treatment systems;
Fig. 2 is the 1-1 sectional view of Fig. 1;
Fig. 3 is the 2-2 sectional view of Fig. 1.
Embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Fig. 1 is the schematic diagram of the utility model Sewage treatment systems, and Fig. 2 is the 1-1 sectional view of Fig. 1, and Fig. 3 is the 2-2 sectional view of Fig. 1.As shown in the figure, Sewage treatment systems of the present utility model comprises pre-anoxic pond 1, anaerobic pond 2, anoxic pond 3, Aerobic Pond 4, rear anoxic pond 5, sequence batch (inclined-plate clarifying basin 6.
Further, be conducted by partition wall water hole between pre-anoxic pond 1, anaerobic pond 2, anoxic pond 3, Aerobic Pond 4, rear anoxic pond 5, sequence batch (inclined-plate clarifying basin 6.
Pre-anoxic pond 1 is connected with inlet channel 7, and the anoxic denitrification for returned sluge and sewage reacts.Anaerobic pond 2 is connected with inlet channel 7, and is conducted with pre-anoxic pond 1, for carrying out anaerobic phosphorus release during biochemical dephosphorization.Anoxic pond 3 is connected with inlet channel 7, and is conducted, for denitrification denitrogenation with anaerobic pond 2.Aerobic Pond 4 and anoxic pond 3 are conducted, for the absorption of organic matter degradation, organonitrogen and Ammonia Nitrification, phosphorus.Rear anoxic pond 5 is conducted, for simultaneous nitrification-denitrification process with Aerobic Pond 4.Sequence batch (inclined-plate clarifying basin 6 and rear anoxic pond 5 are conducted, concentrated for mud-water separation process and returned sluge 8, and returned sluge 8 is back to described pre-anoxic pond.
Concrete, pre-anoxic pond 1 is for the anoxic denitrification of returned sluge, and denitrifying carbon source mainly from mud component, or is added by urban sewage; Anaerobic pond 2 is for carrying out anaerobic phosphorus release when the biochemical dephosphorization of system; Anoxic pond 3 is for the denitrification denitrogenation of system; Aerobic Pond 4 is for the aerobic reaction process such as absorption of system organic matter degradation, organonitrogen and Ammonia Nitrification, phosphorus; Rear anoxic pond 5 adopts simultaneous nitrification-denitrification technique; Sequence batch (settling tank 6 provides good mud-water separation effect and the concentrated effect of returned sluge, and improves the concentration of excess sludge.
Pre-anoxic pond 1, anaerobic pond 2, anoxic pond 3 are connected with inlet channel 7, municipal effluent enters native system after sand setting process, according to the difference of the water yield and water quality, select water inlet position and operation scheme, biochemical treatment is carried out to sewage, last sewage enters sequence batch (inclined-plate clarifying basin and carries out mud-water separation discharge, and the sludge part of precipitation is back to pre-anoxic pond, and part is as excess sludge discharge.
Again as shown in Figure 2, Aerobic Pond 4 top has the first water hole 40, and described Aerobic Pond 4 is conducted with described rear anoxic pond 5 by described first water hole 40.Rear anoxic pond 5 bottom has the second water hole 50, and described rear anoxic pond 5 is conducted with described sequence batch (inclined-plate clarifying basin 6 by described second water hole 50.
Feature of the present utility model is the comprehensive of reactive system and handiness.
When carbon N∶P ratio of intaking is normal, operation scheme is: the sewage after sand setting process introduces Sewage treatment systems, flows through anaerobic pond 2, anoxic pond 3, Aerobic Pond 4, rear anoxic pond 5 successively, flows out from sequence batch (inclined-plate clarifying basin 6.Mixed solution in Aerobic Pond 4 passed through wall plug-flow pump reflux to anoxic pond 3; Returned sluge enters pre-anoxic pond 1.
When carbon-nitrogen ratio of intaking is lower, run simultaneous nitrification-denitrification pattern.Sewage allocates pre-anoxic pond 1 by described water inlet into respectively by 0 ~ 10%, 80 ~ 50%, 20 ~ 40% (this allocation proportion can adjust flexibly according to water quality), anaerobic pond 2, anoxic pond 3 are run now to utilize water inlet pipe to intake.
The utility model Sewage treatment systems can effectively remove organic pollutant, total Kjeldahl nitrogen, suspended solids and portion phosphate by biochemical reaction.After the process of the utility model method, water outlet COD (50mg/L can be made, biochemical oxygen demand (BOD) BOD5 (10mg/L on the 5th, suspended solids SS (20mg/L, total nitrogen TN-N (15mg/L, NH3-N (5mg/L (temperature >12oC), NH3-N (8mg/L (temperature (12oC).
The utility model has the advantage of: precipitating sludge is back to pre-anoxic pond 1 to carry out endogenous denitrification and remove nitric nitrogen, and reflux ratio is 80-150%, remove nitric nitrogen and mud after anoxic is stablized enters anaerobic pond; By multipoint water feeding, distribution carbon source can be optimized, guarantee Nitrogen/Phosphorus Removal; By arranging rear anoxic pond, synchronous nitration denitrification denitrogenation can be carried out; By arranging swash plate in sequence batch (settling tank, improving mud-water separation effect, and arrange flushing arrangement bottom swash plate; Equal treatment effect, the utility model to save land area 30%--50% compared with other similar techniques, and working cost saves 20%--30%.
Above-described embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only embodiment of the present utility model; and be not used in restriction protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a Sewage treatment systems, is characterized in that, described Sewage treatment systems comprises:
Pre-anoxic pond, is connected with inlet channel, and the anoxic denitrification for returned sluge and sewage reacts;
Anaerobic pond, is connected with described inlet channel, and is conducted with described pre-anoxic pond, for carrying out anaerobic phosphorus release during biochemical dephosphorization;
Anoxic pond, is connected with described inlet channel, and is conducted, for denitrification denitrogenation with described anaerobic pond;
Aerobic Pond, is conducted with described anoxic pond, for the absorption of organic matter degradation, Ammonia Nitrification, phosphorus;
Rear anoxic pond, is conducted with described Aerobic Pond, for simultaneous nitrification-denitrification process;
Sequence batch (inclined-plate clarifying basin, is conducted with rear anoxic pond, concentrated for mud-water separation process and returned sluge, and described returned sluge is back to described pre-anoxic pond.
2. Sewage treatment systems according to claim 1, is characterized in that, described Aerobic Pond top has the first water hole, and described Aerobic Pond is conducted by described first water hole and described rear anoxic pond.
3. Sewage treatment systems according to claim 1, is characterized in that, described rear anoxic pond bottom has the second water hole, and described rear anoxic pond is conducted by described second water hole and described sequence batch (inclined-plate clarifying basin.
4. Sewage treatment systems according to claim 1, is characterized in that, described system also comprises wall plug-flow pump, and the mixed solution in described Aerobic Pond passed through wall plug-flow pump reflux to anoxic pond.
5. Sewage treatment systems according to claim 1, is characterized in that, described water inlet injects pre-anoxic pond, anaerobic pond, anoxic pond by 0 ~ 10%, 80 ~ 50%, 20 ~ 40% respectively by described inlet channel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520151592.7U CN204727718U (en) | 2015-03-17 | 2015-03-17 | Sewage treatment systems |
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| CN201520151592.7U CN204727718U (en) | 2015-03-17 | 2015-03-17 | Sewage treatment systems |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104761100A (en) * | 2015-03-17 | 2015-07-08 | 东莞市智汇水务科技有限公司 | Sewage treatment system |
| CN105621814A (en) * | 2016-03-07 | 2016-06-01 | 北京恩菲环保股份有限公司 | High-quality regenerated recycle water treatment system and method |
| CN106865893A (en) * | 2017-03-09 | 2017-06-20 | 杭州职业技术学院 | A kind of domestic sewage treatment process |
| WO2018157766A1 (en) * | 2017-03-02 | 2018-09-07 | 可事托环保设备（上海）有限公司 | Multi-unit modified sequencing batch reactor and applications thereof |
| CN113845218A (en) * | 2021-08-24 | 2021-12-28 | 无锡惠山环保水务有限公司 | Multistage AO sewage treatment system and process thereof |
-
2015
- 2015-03-17 CN CN201520151592.7U patent/CN204727718U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104761100A (en) * | 2015-03-17 | 2015-07-08 | 东莞市智汇水务科技有限公司 | Sewage treatment system |
| CN105621814A (en) * | 2016-03-07 | 2016-06-01 | 北京恩菲环保股份有限公司 | High-quality regenerated recycle water treatment system and method |
| CN105621814B (en) * | 2016-03-07 | 2018-09-11 | 北京恩菲环保股份有限公司 | High-quality regeneration water treatment system and method |
| WO2018157766A1 (en) * | 2017-03-02 | 2018-09-07 | 可事托环保设备（上海）有限公司 | Multi-unit modified sequencing batch reactor and applications thereof |
| CN106865893A (en) * | 2017-03-09 | 2017-06-20 | 杭州职业技术学院 | A kind of domestic sewage treatment process |
| CN106865893B (en) * | 2017-03-09 | 2019-06-18 | 杭州职业技术学院 | A kind of domestic sewage treatment process |
| CN113845218A (en) * | 2021-08-24 | 2021-12-28 | 无锡惠山环保水务有限公司 | Multistage AO sewage treatment system and process thereof |
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20201119 Address after: Room 108, first floor, office building, Zhangcun water purification Co., Ltd., Dongcheng Street, Dongguan City, Guangdong Province 523000 Patentee after: Dongguan Zhongyuan Environmental Investment Co., Ltd Address before: 505, room 3, building 6, 523000 Industrial Road, Songshan hi tech Industrial Development Zone, Guangdong, Dongguan, China Patentee before: DONGGUAN ZHIHUI WATER TECHNOLOGY Co.,Ltd. |