CN106746363A - A kind of continuous-flow aerobic granular sludge culture and size controlling method and system - Google Patents
A kind of continuous-flow aerobic granular sludge culture and size controlling method and system Download PDFInfo
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- CN106746363A CN106746363A CN201710075411.0A CN201710075411A CN106746363A CN 106746363 A CN106746363 A CN 106746363A CN 201710075411 A CN201710075411 A CN 201710075411A CN 106746363 A CN106746363 A CN 106746363A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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Abstract
A kind of continuous-flow aerobic granular sludge culture and size controlling method, comprise the following steps:1) water inlet enters biochemistry pool after sequentially passing through thickness grid, preliminary sedimentation tank;2) biochemistry pool water outlet pressure delivers to cyclone separator and carries out weight sludge separation, and described cyclone separator is built-in hangnail cyclone separator, the hangnail of built-in control granularity;3) by separation after heavy mud mixed liquid force feed be back to anoxic pond, light mud mixed liquid force feed to sedimentation basin is carried out into mud-water separation, using partial sludge as residual sludge reflux to anaerobic pond front end after mud-water separation, another part carries out dehydration outward transport, and sedimentation basin water outlet is by qualified discharge after disinfection apparatus.And the system that a kind of continuous-flow aerobic granular sludge culture and size controlling are provided.The present invention promotes the granulating of aerobic sludge and controls grain diameter in optimized scope.
Description
Technical field
The invention belongs to field of sludge treatment, be related to a kind of continuous-flow aerobic granular sludge culture and size controlling method and
System.
Technical background
Aerobic Granular Sludge Technology compares ordinary activated sludge due to good settling property, high sludge concentration, energy
Enough bear the characteristics such as high organic loading, load impact and noxious material, the focus just studied as all circles and reported.It is general next
Say, the formation of aerobic particle mud is a complex process comprising physics, chemistry and biological agent, main flow view is by this mistake
Journey is described as under certain hydrodynamic condition, the organism clustering phenomena that microorganism self-cohesion action is formed.Learn both at home and abroad
Person proposes various aerobic grains according to different reactors, experimental technique, research purpose etc. on the basis of respective experimental study
Sludge formation mechenism.Stability with reference to aerobic particle mud and the removal effect to pollutant, research think that 700-1900 is micro-
Rice is the optimum grain-diameter scope of aerobic particle mud, but actually the aerobic particle mud particle diameter of culture has from 200-7000 microns
Report.The excessive disintegration for being easily caused particle of particle diameter, particle diameter is too small easily to cause that dissolved oxygen penetrates into particle inside and do not reach
The simultaneous denitrification effect of grain sludge.Therefore, how to control its particle diameter to have important in aerobic particle mud culture and operation
Meaning.During most of research concentrates on sequencing batch reactor at present, aerobic particle mud processes the technique report of sewage in continuous stream
Road is also few.
AAO techniques are the abbreviations of anaerobic- anoxic- oxic method, are a kind of conventional sewage treatment process, with denitrogenation dephosphorizing
Function.In anaerobic reactor, raw sewage is synchronous with the phosphorous returned sludge discharged from sedimentation basin to be entered, and major function is release
Phosphorus, while partial organic substances carry out ammonification;In anoxic reacter, premiere feature is denitrogenation, nitrate nitrogen be by interior circulation by
What aerobic reactor was sent, the mixing liquid measure of circulation is larger, generally 2Q (Q is raw sewage flow);It is to expose in aerobic reactor
In gas pond, BOD is removed, and nitrified and absorbed phosphorus;Sedimentation basin major function is mud-water separation, and a sludge part is back to detests
Oxygen reactor, supernatant is discharged as treatment water.AAO techniques are widely used as traditional handicraft, but there is also the dirt that such as flows back
A large amount of nitrate ions destruction anaerobic environment, denitrifying carbon source insufficient supply, the low shortcoming of biological phosphate-eliminating efficiency that mud is carried.Cause
This, with reference to AAO techniques, rapidly cultivating aerobic particle sludge and runs to overcoming the technique to lack steadily in the long term in continuous stream
Point, intensified denitrification and dephosphorization effect have great importance.
The content of the invention
To overcome that culture of the current aerobic particle mud in continuous stream is difficult, the cycle is long, size controlling is difficult, easy unstability etc. asks
Topic, the characteristics of for AAO techniques and defect, the present invention provides a kind of simple, economic, efficient continuous-flow aerobic granular sludge training
Support and size controlling method and system.
Following technical scheme is provided in order to solve foregoing problems:
A kind of continuous-flow aerobic granular sludge culture and size controlling method, the described method comprises the following steps:
1) water inlet enters biochemistry pool after sequentially passing through thickness grid, preliminary sedimentation tank, and described biochemistry pool is by detesting for setting gradually
Oxygen pond, anoxic pond and Aerobic Pond composition;
2) biochemistry pool water outlet pressure delivers to cyclone separator and carries out weight sludge separation, described cyclone separator for it is built-in fall
Thorn cyclone separator, the hangnail of built-in control granularity;
3) by separation after heavy mud mixed liquid force feed be back to anoxic pond, light mud mixed liquid force feed to sedimentation basin is entered
Row mud-water separation, using partial sludge as residual sludge reflux to anaerobic pond front end after mud-water separation, another part is dehydrated
Outward transport, sedimentation basin water outlet is by qualified discharge after disinfection apparatus.
Further, the step 2) in, biochemistry pool water outlet is extremely revolved by the water pump force feed that will not be damaged to granule sludge
Stream separator, the water pump is the water pump for being hardly damaged granule sludge, can be fish swimming pump, membrane pump etc..
Further, the step 3) in, by separation after heavy mud mixed liquid with will not be damaged to granule sludge
Water pump force feed be back to anoxic pond, the water pump is the water pump for being hardly damaged granule sludge, can be fish swimming pump, membrane pump
Deng.
A kind of continuous-flow aerobic granular sludge culture and the system of size controlling, the system include thickness grid, just sink
Pond, biochemistry pool, cyclone separator and sedimentation basin, the import of the thickness grid is total water inlet, the outlet of the thickness grid
With the inlet communication of preliminary sedimentation tank, the outlet of the preliminary sedimentation tank and the inlet communication of biochemistry pool, described biochemistry pool is by setting gradually
Anaerobic pond, anoxic pond and Aerobic Pond composition, described Aerobic Pond outlet and cyclone separator inlet communication, described eddy flow point
From the hangnail of the built-in control granularity of device, described hangnail cyclone separator lower end weight sludge outlet by return duct with
The connection of anoxic pond front end, the described light sludge outlet in hangnail cyclone separator upper end and the inlet communication of sedimentation basin, the precipitation
The sludge outlet part in pond is connected by return duct with anaerobic pond front end, sludge outlet another part and the dirt of the sedimentation basin
Mud disposal plant UNICOM, connects after the sterilized facility of delivery port of the sedimentation basin with total delivery port.
Further, described cyclone separator is built-in hangnail cyclone separator.
Further, described cyclone separator is set to multiple in groups, it is of course also possible to be one.
Further, delivery pump is installed in the connecting tube before described Aerobic Pond outlet and cyclone separator import, institute
The delivery pump stated is the special water pump that fish swimming pump, membrane pump etc. will not be damaged to granule sludge.
Muddy water mixed solution delivery pump is installed on the return duct of described hangnail cyclone separator lower end weight sludge outlet, it is described
The special water pump that granule sludge will not be damaged for fish swimming pump, membrane pump etc. of muddy water mixed solution delivery pump.
Technology design of the invention is:The present invention carries out the selection of weight sludge by setting cyclone separator, by dirt
Mud weight by weight is separated and collected, and lightweight sludge is by shorter microorganism group from generation to generation into being expelled directly out sewage disposal system
System, the heavy sludge of weight is by microorganism group more long from generation to generation into backflow weight sludge is conducive to the denitrogenation and dephosphorization of microorganism, promotes
The raising of sludge quality and be conducive to the granulating of aerobic sludge in biochemistry pool;Using the hydraulic shear produced by cyclone separator
Condition further promotes the granulating of aerobic sludge;Using the built-in hangnail of cyclone separator, the particle diameter of granule sludge is controlled to exist
Within the scope of required;Aerobic particle mud is conducive to improving mud-water separation effect, the synchronous nitration being had again after being formed
The recycling of the element such as the dominant mechanism such as denitrification, biomineralization strengthening biological carbon and phosphorous removal and follow-up phosphorus;Using new
Fish swimming pump, membrane pump etc. are hardly damaged the water pump of granule sludge as power, ensure aerobic particle mud system in operation
Continuous-stable.
Beneficial effects of the present invention are mainly reflected in:
(1) cyclone separator selective collection sludge is utilized, artificially sludge is separated by quality weight, form selection
Mechanism.
(2) granulating of aerobic sludge is further promoted using the hydraulic shear condition produced by cyclone separator.
(3) hangnail is set inside cyclone separator, the particle diameter of granule sludge is controlled.
(4) due to advantage machines such as synchronous nitration and denitrification, biomineralization, the strains of its own after aerobic particle mud is formed
System, beneficial to the recycling of the element such as biological carbon and phosphorous removal and follow-up phosphorus.
(4) water pump of granule sludge is hardly damaged as power by the use of new fish swimming pump, membrane pump etc., ensure aerobic
The normal operation of granule sludge system.
(5) process is simple, need to only increase hangnail cyclone separator newly to existing sewage treatment plant and replacing cuts out the pump,
Mark transformation is proposed beneficial to existing sewage treatment plant.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of a kind of continuous-flow aerobic granular sludge culture and size controlling method.
Specific embodiment
With reference to specific embodiment, the present invention is described further, but protection scope of the present invention is not limited in
This.
Reference picture 1, a kind of continuous-flow aerobic granular sludge culture and size controlling method, comprise the following steps:
1) water inlet enters biochemistry pool after sequentially passing through thickness grid, preliminary sedimentation tank, and described biochemistry pool is by detesting for setting gradually
Oxygen pond, anoxic pond and Aerobic Pond composition;
2) biochemistry pool water outlet is swum water pump force feed that pump, membrane pump etc. will not damage to granule sludge to eddy flow by fish
Separator carries out weight sludge separation, and described cyclone separator is built-in hangnail cyclone separator, built-in control granule sludge
The hangnail of particle diameter;
3) by separation after heavy mud mixed liquid swum the water that pump, membrane pump etc. will not damage to granule sludge with fish
Pump pressure is sent back to and flow to anoxic pond, and light mud mixed liquid force feed to sedimentation basin is carried out into mud-water separation, will part dirt after mud-water separation
Used as residual sludge reflux to anaerobic pond front end, another part carries out dehydration outward transport to mud, and sedimentation basin water outlet is by after disinfection apparatus
Qualified discharge.
A kind of continuous-flow aerobic granular sludge culture and the system of size controlling, the system include thickness grid, just sink
Pond, biochemistry pool, cyclone separator and sedimentation basin, the import of the thickness grid is total water inlet, the outlet of the thickness grid
With the inlet communication of preliminary sedimentation tank, the outlet of the preliminary sedimentation tank and the inlet communication of biochemistry pool, described biochemistry pool is by setting gradually
Anaerobic pond, anoxic pond and Aerobic Pond composition, described Aerobic Pond outlet and cyclone separator inlet communication, described eddy flow point
It is built-in hangnail cyclone separator from device, described hangnail cyclone separator lower end weight sludge outlet passes through return duct and anoxic pond
Front end connection, the described light sludge outlet in hangnail cyclone separator upper end and the inlet communication of sedimentation basin, the dirt of the sedimentation basin
A mud outlet part is connected by return duct with anaerobic pond front end, sludge outlet another part and sludge treatment of the sedimentation basin
Device UNICOM, connects after the sterilized facility of delivery port of the sedimentation basin with total delivery port.
Example 1:A kind of continuous-flow aerobic granular sludge culture and size controlling method, take from sewage disposal plant aeration tank dirty
Mud is seeded in reactor with 1200mg/L, and seed sludge form is flco, and SVI is 85ml/g, uses and is received with acetic acid, aoxidized
Ammonia, potassium dihydrogen phosphate are configured to COD for 1000mg/L, NH4 +- N concentration is that 60mg/L, TP concentration are the sewage of 10mg/L, continuously
Enter water running, hangnail cyclonic separation thinks highly of sludge reflux to anoxic pond front end, and clarifier sludge is back to anaerobic pond front end, react
After device continuously runs 20 days, aerobic sludge granulation, at 500-1000 microns, sedimentation is several times 20- to grain diameter major part
30m/h, SVI<The clearance of 52ml/g, COD is in 95% or so, TN clearances in 85% or so, TP 90% or so.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that:Not
Various changes, modification, replacement and modification can be carried out in the case of departing from principle of the invention and objective to embodiment, the present invention
Scope limited by claim and its equivalent.
Claims (8)
1. a kind of continuous-flow aerobic granular sludge culture and size controlling method, it is characterised in that:Methods described includes following step
Suddenly:
1) water inlet is sequentially passed through and enters biochemistry pool after thickness grid, preliminary sedimentation tank, described biochemistry pool by set gradually anaerobic pond,
Anoxic pond and Aerobic Pond are constituted;
2) biochemistry pool water outlet pressure delivers to cyclone separator and carries out weight sludge separation, and described cyclone separator is the rotation of built-in hangnail
Stream separator, the hangnail of built-in control granularity;
3) by separation after heavy mud mixed liquid force feed be back to anoxic pond, light mud mixed liquid force feed to sedimentation basin is carried out into mud
Water is separated, and using partial sludge as residual sludge reflux to anaerobic pond front end after mud-water separation, another part carries out dehydration outward transport,
Sedimentation basin water outlet is by qualified discharge after disinfection apparatus.
2. a kind of continuous-flow aerobic granular sludge culture as claimed in claim 1 and size controlling method, it is characterised in that:Institute
State step 2) in, biochemistry pool water outlet is by the water pump force feed that will not be damaged to granule sludge to cyclone separator.
3. a kind of continuous-flow aerobic granular sludge culture as claimed in claim 1 or 2 and size controlling method, its feature exist
In:The step 3) in, by separation after heavy mud mixed liquid flowed back with the water pump force feed that will not be damaged to granule sludge
To anoxic pond.
4. the system that a kind of continuous-flow aerobic granular sludge culture as claimed in claim 1 is realized with size controlling method, its
It is characterised by:The system includes thickness grid, preliminary sedimentation tank, biochemistry pool, cyclone separator and sedimentation basin, the thickness grid
Import is total water inlet, the outlet of the thickness grid and the inlet communication of preliminary sedimentation tank, the outlet of the preliminary sedimentation tank and biochemistry pool
Inlet communication, described biochemistry pool is made up of the anaerobic pond, anoxic pond and the Aerobic Pond that set gradually, described Aerobic Pond outlet
With cyclone separator inlet communication, the hangnail of the built-in control granularity of described cyclone separator, described hangnail rotation
Stream separator lower end weight sludge outlet is connected by return duct with anoxic pond front end, and described hangnail cyclone separator upper end is gently dirty
Mud exports the inlet communication with sedimentation basin, and a sludge outlet part for the sedimentation basin is connected by return duct with anaerobic pond front end
It is logical, sludge outlet another part and the sludge treatment device UNICOM of the sedimentation basin, the delivery port of the sedimentation basin is sterilized to be set
The total delivery port connections of Shi Houyu.
5. system as claimed in claim 4, it is characterised in that:Described cyclone separator is built-in hangnail cyclone separator.
6. system as claimed in claim 5, it is characterised in that:Described cyclone separator is set to multiple in groups.
7. the system as described in one of claim 4~6, it is characterised in that:Described Aerobic Pond outlet is entered with cyclone separator
Delivery pump is installed in connecting tube before mouthful, described delivery pump is the water pump for being hardly damaged granule sludge.
8. the system as described in one of claim 4~6, it is characterised in that:Described hangnail cyclone separator lower end weight sludge
Muddy water mixed solution delivery pump is installed, described muddy water mixed solution delivery pump is to be hardly damaged granule sludge on the return duct of outlet
Water pump.
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107585951A (en) * | 2017-09-07 | 2018-01-16 | 上海同济普兰德生物质能股份有限公司 | A kind of method of heavy mud recovery intensified denitrification and dephosphorization |
CN107857363A (en) * | 2017-09-13 | 2018-03-30 | 北京城市排水集团有限责任公司 | Particle and the device and its application method of floc sludge are sorted using cyclone separator |
CN109095601A (en) * | 2018-10-25 | 2018-12-28 | 江西理工大学 | Aerobic granular sludge reactor operation stability based on size controlling maintains method |
CN109761352A (en) * | 2019-01-29 | 2019-05-17 | 北京首创股份有限公司 | The aerobic particle mud processing method of energy stability and high efficiency processing low-carbon-source sewage |
CN113149194A (en) * | 2021-05-07 | 2021-07-23 | 艾柯环保技术(杭州)有限公司 | Method for promoting two-stage sedimentation of continuous flow aerobic granular sludge |
CN113371821A (en) * | 2021-07-22 | 2021-09-10 | 许孝瑜 | Continuous flow aerobic granular sludge reaction system and treatment method |
CN114426373A (en) * | 2020-10-10 | 2022-05-03 | 中国石油化工股份有限公司 | Method and device for improving nitrogen and phosphorus removal effect of AO system |
CN114716116A (en) * | 2022-05-24 | 2022-07-08 | 湖南五方环境科技研究院有限公司 | Sewage treatment system and method based on low-speed cyclone separation |
CN115010255A (en) * | 2022-06-29 | 2022-09-06 | 北控水务(中国)投资有限公司 | Enhanced sludge granulation treatment system based on AOA (argon oxygen decarburization) process and debugging method |
CN115140841A (en) * | 2022-05-24 | 2022-10-04 | 湖南五方环境科技研究院有限公司 | System and method for regulating and controlling sludge concentration of composite bioreactor |
CN115159798A (en) * | 2022-06-14 | 2022-10-11 | 海若斯(北京)环境科技有限公司 | Continuous flow aerobic granular sludge reaction device and treatment process |
CN115536150A (en) * | 2022-11-04 | 2022-12-30 | 北京城市排水集团有限责任公司 | Granulation system and granulation method for anaerobic ammonium oxidation sludge in main flow area of sewage plant |
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Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107585951A (en) * | 2017-09-07 | 2018-01-16 | 上海同济普兰德生物质能股份有限公司 | A kind of method of heavy mud recovery intensified denitrification and dephosphorization |
CN107857363A (en) * | 2017-09-13 | 2018-03-30 | 北京城市排水集团有限责任公司 | Particle and the device and its application method of floc sludge are sorted using cyclone separator |
CN109095601A (en) * | 2018-10-25 | 2018-12-28 | 江西理工大学 | Aerobic granular sludge reactor operation stability based on size controlling maintains method |
CN109095601B (en) * | 2018-10-25 | 2021-07-06 | 江西理工大学 | Method for maintaining operation stability of aerobic granular sludge reactor based on particle size control |
CN109761352A (en) * | 2019-01-29 | 2019-05-17 | 北京首创股份有限公司 | The aerobic particle mud processing method of energy stability and high efficiency processing low-carbon-source sewage |
CN114426373B (en) * | 2020-10-10 | 2023-01-20 | 中国石油化工股份有限公司 | Method and device for improving nitrogen and phosphorus removal effect of AO system |
CN114426373A (en) * | 2020-10-10 | 2022-05-03 | 中国石油化工股份有限公司 | Method and device for improving nitrogen and phosphorus removal effect of AO system |
CN113149194A (en) * | 2021-05-07 | 2021-07-23 | 艾柯环保技术(杭州)有限公司 | Method for promoting two-stage sedimentation of continuous flow aerobic granular sludge |
CN113371821A (en) * | 2021-07-22 | 2021-09-10 | 许孝瑜 | Continuous flow aerobic granular sludge reaction system and treatment method |
CN115140841A (en) * | 2022-05-24 | 2022-10-04 | 湖南五方环境科技研究院有限公司 | System and method for regulating and controlling sludge concentration of composite bioreactor |
CN114716116A (en) * | 2022-05-24 | 2022-07-08 | 湖南五方环境科技研究院有限公司 | Sewage treatment system and method based on low-speed cyclone separation |
CN115159798A (en) * | 2022-06-14 | 2022-10-11 | 海若斯(北京)环境科技有限公司 | Continuous flow aerobic granular sludge reaction device and treatment process |
CN115010255A (en) * | 2022-06-29 | 2022-09-06 | 北控水务(中国)投资有限公司 | Enhanced sludge granulation treatment system based on AOA (argon oxygen decarburization) process and debugging method |
CN115010255B (en) * | 2022-06-29 | 2023-11-10 | 北控水务(中国)投资有限公司 | AOA (advanced organic framework) -process-based sludge granulation treatment system and debugging method |
CN115536150A (en) * | 2022-11-04 | 2022-12-30 | 北京城市排水集团有限责任公司 | Granulation system and granulation method for anaerobic ammonium oxidation sludge in main flow area of sewage plant |
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Application publication date: 20170531 |