CN106698868A - Municipal waste water treatment sludge decrement intermittent running device and method for intermittently dephosphorizing - Google Patents
Municipal waste water treatment sludge decrement intermittent running device and method for intermittently dephosphorizing Download PDFInfo
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- CN106698868A CN106698868A CN201710202072.8A CN201710202072A CN106698868A CN 106698868 A CN106698868 A CN 106698868A CN 201710202072 A CN201710202072 A CN 201710202072A CN 106698868 A CN106698868 A CN 106698868A
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- sbr reactor
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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
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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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
- C02F3/308—Biological phosphorus removal
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/341—Consortia of bacteria
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic 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
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/44—Time
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1263—Sequencing batch reactors [SBR]
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Activated Sludge Processes (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a municipal waste water treatment sludge decrement intermittent running device and method for intermittently dephosphorizing, which belong to the technical field of water treatment. The device is formed by a pump station, a grit basin, more than two SBR (Sequencing Batch Reactor) tanks connected in parallel and a coagulation dephosphorization tank, wherein phosphorus on-line outer outlet detection devices are arranged on water outlet pipes of the reactor tanks; the reactor tanks are connected with the coagulation dephosphorization tank through pipelines and dephosphorization valves; the coagulation dephosphorization tank is connected with a pipeline between the pump station and the grit basin. The dephosphorizing method comprises the steps of feeding waste water into each reactor tank, and detecting treated water through the phosphorus on-line outer outlet detection devices; when the phosphorus content of water discharged from one reactor tank achieves a set value, closing the valve of the reactor tank; stirring for releasing phosphorus into the waste water; after precipitation, discharging the waste water into the coagulation dephosphorization tank, utilizing a chemical dephosphorizing method for removing the phosphorus from water, and discharging dephosphorized sludge as excess sludge out of a system; feeding a supernate into the pipeline between the pump station and the grit basin, mixing the supernate and the waste water, and feeding into the grit basin. The municipal waste water treatment sludge decrement intermittent running device and the method for intermittently dephosphorizing provided by the invention solve the problems of high activated sludge concentration, prolonged activated sludgeaverage residence time and excessive phosphorus of periodically discharged water.
Description
Technical field
The invention belongs to water-treatment technology field, and in particular to a kind of processing method of municipal sewage.
Background technology
It is reported that as a example by processing 100,000 tons of municipal sewage plants of sewage a day, such as daily normal operation, then often
It will produce sludge dry solids 10-20 tons, be converted into aqueous 80% sludge, be up to 50-100 tons.With China city
The increase of sewage quantity and the raising of wastewater treatment rate, the yield of sludge can be doubled and redoubled, it is contemplated that to the year two thousand twenty, year sludge yield will
Reach 60,000,000 tons.The investment and operation of excess sludge treatment account for the investment of whole sewage treatment plant and operating cost 25%~
65%, the Tough questions that huge expense has faced as biological wastewater treatment technology.Therefore, increasing people praises highly sludge
Sources decreasing, i.e. technique do not produce excess sludge or produce excess sludge on a small quantity in itself.
For existing sludge sewage method handling process, the removal of phosphorus is mainly by the discharge of excess sludge
Realize, the reduction of sludge discharge promotes the clearance of phosphorus to reduce.Therefore presence can not be assisted between mud decrement and biological phosphate-eliminating
The contradiction of tune --- mud decrement effect is better, and the surplus sludge volume of generation is fewer, and phosphor-removing effect is poorer.
At present, all it is to be combined to form complex art by physics, chemical and biological various methods in report, or according to
Need to improve traditional handicraft, kinds of processes is combined into integrated new technology, new technology could be real during sludge reduction
The synchronous removal of existing organic matter, nitrogen phosphorus.Such as combine heat chemistry pre-treating technology, the biological removal of nitrogen of mud decrement in MBR reactors
A2Three kinds of technique research and developments of/O techniques and calcium precipitation dephosphorization go out the new technology of mud decrement synchronous denitrification dephosphorizing, routine A2/ O works
Skill+sludge reduction system+bypass chemical phosphorus removal system, routine A2/ O techniques+detest/aerobic alternate system and modified form A2/ O works
Skill etc..But these new technologies limit its extensive use because process operation is complicated, high cost.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of municipal waste water treatment sludge minimizing for being interrupted dephosphorization intermittently
Running gear.
Method invention also provides dephosphorization is interrupted using this device.
Apparatus of the present invention are constituted using grid, pumping plant, setting pot, sbr reactor pond, coagulation for phosphorus removal pond and contact chamber, grid,
Pumping plant, setting pot are sequentially connected, and two or more sbr reactor pond in parallel is connected between setting pot and contact chamber, and each SBR is anti-
Ying Chi by outlet pipe connect contact chamber, on outlet pipe install the online water outlet testing equipment of phosphorus and flowing water Valve, setting pot with it is every
Inlet valve is installed, sbr reactor pond connects coagulation for phosphorus removal pond, coagulation by pipeline and dephosphorization valve between individual sbr reactor pond
Dephosphorization pond connects the pipeline between pumping plant and setting pot.
The method of dephosphorization is that sewage intercepts big suspension and floating object by grid, then is sent at setting pot by pumping plant
After reason, into each sbr reactor pond, detected by the online water outlet testing equipment of phosphorus by the water after its treatment, worked as water outlet
When phosphorus content is less than setting value, water outlet carries out disinfection and discharges into contact chamber；When certain sbr reactor pond water outlet phosphorus content reaches
During setting value, the flowing water Valve closed on outlet pipe, the valve closed on water inlet pipe after water inlet 20min, by way of stirring,
Operation 3-4 hours, makes the phosphorus in sbr reactor pond in activated sludge be discharged into sewage, after reprecipitation 2-3 hours, sewage is arranged
Enter in coagulation for phosphorus removal pond, dosing stirring precipitates 25-40min, phosphorus is removed from water using the method for chemical dephosphorization, dephosphorization
Sludge discharge system in the form of excess sludge, it is heavy that supernatant is mixed into the pipeline between pumping plant and setting pot and sewage
Sand pond.
Whole process controls sbr reactor pond sludge concentration under conditions of 6000-8000mg/L, design runs 3-4 daily
Cycle, each cycle 6-8h, wherein water inlet 0.5-1h, aeration 3-5h, precipitation 0.5-1h, draining 0.5-1h, standby 0.5-1h, draining
Than being 20%-30%.
Advantages of the present invention：
1st, sludge concentration is high compared with sludge concentration in conventional SBR pond in SBR ponds of the present invention, and sludge is local in reactor to be produced
, there is anoxia phenomenon and anti-nitration reaction occurs in raw deposition.
2nd, sludge concentration is high in SBR ponds in invention, and biological zoogloea diameter is relatively large, and its own is subtracted by export-oriented dissolved oxygen
Small, zoogloea inside easily forms anaerobic environment so as to anti-nitration reaction occur.
3rd, sludge concentration is high in SBR ponds in invention, and sludge loading reduction, sludge age increases, and the concentration of nitrobacteria is relative
It is higher, therefore the speed of aerobic nitrification reaction is higher under the conditions of high sludge concentration.
4th, activated sludge concentration is solved high, the growth of activated sludge mean residence time, the exceeded problem of water outlet periodicity phosphorus.
5th, high sludge concentration, underload, sludge yield is low
6th, dephosphorization is periodically carried out to small part water, total investment of engineering is reduced, operating cost is reduced.
Brief description of the drawings
Fig. 1 is the schematic diagram of apparatus of the present invention.
Specific embodiment
Apparatus of the present invention use grid 1, pumping plant 2, setting pot 3, sbr reactor pond 4, coagulation for phosphorus removal pond 5 and the structure of contact chamber 6
Into, grid 1, pumping plant 2, setting pot 3 are sequentially connected, and four sbr reactor ponds 4 in parallel are connected between setting pot 3 and contact chamber 6,
Each sbr reactor pond 4 connects contact chamber 6 by outlet pipe 7, and the online water outlet testing equipment 8 of phosphorus and outlet valve are installed on outlet pipe 7
Door 9, is provided with inlet valve 10 between setting pot 3 and each sbr reactor pond 4, sbr reactor pond 4 passes through pipeline and dephosphorization valve
11 connection coagulation for phosphorus removal ponds 5, the pipeline between the connection pumping plant 2 of coagulation for phosphorus removal pond 5 and setting pot 3.
The method of dephosphorization is that sewage intercepts big suspension and floating object by grid, then is sent at setting pot by pumping plant
After reason, into each sbr reactor pond, detected by the online water outlet testing equipment of phosphorus by the water after its treatment, worked as water outlet
When phosphorus content is less than setting value, water outlet carries out disinfection and discharges into contact chamber；When certain sbr reactor pond water outlet phosphorus content reaches
During setting value, the flowing water Valve closed on outlet pipe, the valve closed on water inlet pipe after water inlet 20min, by way of stirring,
Operation 4 hours, makes the phosphorus in sbr reactor pond in activated sludge be discharged into sewage, and reprecipitation was drained into sewage after 3 hours
In coagulation for phosphorus removal pond, dosing stirring 1min precipitates 30min, phosphorus is removed from water using the method for chemical dephosphorization, except phosphorus sludge
The discharge system in the form of excess sludge, supernatant is mixed into sand setting into the pipeline between pumping plant and setting pot and sewage
Pond.
Whole process controls sbr reactor pond sludge concentration under conditions of 6000-8000mg/L, design runs 3-4 daily
Cycle, each cycle 6-8h, wherein water inlet 0.5-1h, aeration 3-5h, precipitation 0.5-1h, draining 0.5-1h, standby 0.5-1h, draining
Than being 20%-30%.
Claims (2)
1. it is a kind of be interrupted dephosphorization municipal waste water treatment sludge minimizing intermittent motion apparatus, it is characterised in that：It using grid,
Pumping plant, setting pot, sbr reactor pond, coagulation for phosphorus removal pond and contact chamber are constituted, and grid, pumping plant, setting pot are sequentially connected, setting pot
Two or more sbr reactor pond in parallel is connected between contact chamber, each sbr reactor pond connects contact chamber by outlet pipe,
The online water outlet testing equipment of phosphorus and flowing water Valve are installed on outlet pipe, are provided with into water between setting pot and each sbr reactor pond
Valve, sbr reactor pond connects coagulation for phosphorus removal pond by pipeline and dephosphorization valve, between coagulation for phosphorus removal pond connection pumping plant and setting pot
Pipeline.
2. device phosphorus removing method according to claim 1, it is characterised in that：Sewage by grid intercept big suspension and
Floating object, then after pumping plant sends into setting pot treatment, into each sbr reactor pond, existed by phosphorus by the water after its treatment
Line water outlet testing equipment is detected that, when water outlet phosphorus content is less than setting value, water outlet carries out disinfection and discharge into contact chamber；
When certain sbr reactor pond water outlet phosphorus content reaches setting value, the flowing water Valve closed on outlet pipe, water inlet is closed after 20 minutes
Valve on water inlet pipe, by way of stirring, runs 3-4 hours, the phosphorus in sbr reactor pond in activated sludge is discharged into dirt
In water, after reprecipitation 2-3 hours, sewage is drained into coagulation for phosphorus removal pond, dosing stirring is precipitated 25-40 minutes, using chemistry
The method of dephosphorization is removed phosphorus from water, except phosphorus sludge in the form of excess sludge discharge system, supernatant enters pumping plant and heavy
Pipeline between sand pond is mixed into setting pot with sewage；
Whole process controls sbr reactor pond sludge concentration under conditions of 6000-8000mg/L, design runs the 3-4 cycles daily,
Each cycle 6-8 hours, wherein water inlet 0.5-1 hour, aeration 3-5 hours, precipitate 0.5-1 hours, draining 0.5-1 hours, it is standby
0.5-1 hours, draining ratio was 20%-30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710202072.8A CN106698868B (en) | 2017-03-30 | 2017-03-30 | A kind of municipal waste water treatment sludge minimizing intermittent duty method for being interrupted dephosphorization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710202072.8A CN106698868B (en) | 2017-03-30 | 2017-03-30 | A kind of municipal waste water treatment sludge minimizing intermittent duty method for being interrupted dephosphorization |
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| Publication Number | Publication Date |
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| CN106698868A true CN106698868A (en) | 2017-05-24 |
| CN106698868B CN106698868B (en) | 2018-02-23 |
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| CN201710202072.8A Active CN106698868B (en) | 2017-03-30 | 2017-03-30 | A kind of municipal waste water treatment sludge minimizing intermittent duty method for being interrupted dephosphorization |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112174432A (en) * | 2020-09-25 | 2021-01-05 | 重庆港力环保股份有限公司 | Intermittent biochemical phosphorus removal method by using SBR (sequencing batch reactor) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040006926A (en) * | 2002-07-16 | 2004-01-24 | 제이에이건설주식회사 | Wastewater treatment utilizing the equencing batch reactor supplemented with inner circulation systems |
| CN101891345A (en) * | 2010-07-13 | 2010-11-24 | 重庆大学 | Reinforced simultaneous nitrogen and phosphorus removal sewage treatment equipment and method for municipal sewage with low carbon source at low oxygen concentration |
| CN102659288A (en) * | 2012-05-21 | 2012-09-12 | 重庆大学 | Low-carbon-source sewage treatment system for reinforcing denitrification and dephosphorization functions and method |
| CN104609651A (en) * | 2015-01-06 | 2015-05-13 | 东华大学 | Wastewater advanced treatment system for large-scale pig farms |
| CN105776758A (en) * | 2016-04-20 | 2016-07-20 | 安徽国祯环保节能科技股份有限公司 | Improved SBR wastewater treatment process for obtaining standard IV-class surface water |
-
2017
- 2017-03-30 CN CN201710202072.8A patent/CN106698868B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040006926A (en) * | 2002-07-16 | 2004-01-24 | 제이에이건설주식회사 | Wastewater treatment utilizing the equencing batch reactor supplemented with inner circulation systems |
| CN101891345A (en) * | 2010-07-13 | 2010-11-24 | 重庆大学 | Reinforced simultaneous nitrogen and phosphorus removal sewage treatment equipment and method for municipal sewage with low carbon source at low oxygen concentration |
| CN102659288A (en) * | 2012-05-21 | 2012-09-12 | 重庆大学 | Low-carbon-source sewage treatment system for reinforcing denitrification and dephosphorization functions and method |
| CN104609651A (en) * | 2015-01-06 | 2015-05-13 | 东华大学 | Wastewater advanced treatment system for large-scale pig farms |
| CN105776758A (en) * | 2016-04-20 | 2016-07-20 | 安徽国祯环保节能科技股份有限公司 | Improved SBR wastewater treatment process for obtaining standard IV-class surface water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112174432A (en) * | 2020-09-25 | 2021-01-05 | 重庆港力环保股份有限公司 | Intermittent biochemical phosphorus removal method by using SBR (sequencing batch reactor) |
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| CN106698868B (en) | 2018-02-23 |
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