CN106698868B - A kind of municipal waste water treatment sludge minimizing intermittent duty method for being interrupted dephosphorization - Google Patents
A kind of municipal waste water treatment sludge minimizing intermittent duty method for being interrupted dephosphorization Download PDFInfo
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- CN106698868B CN106698868B CN201710202072.8A CN201710202072A CN106698868B CN 106698868 B CN106698868 B CN 106698868B CN 201710202072 A CN201710202072 A CN 201710202072A CN 106698868 B CN106698868 B CN 106698868B
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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
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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
- C02F3/34—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
A kind of municipal waste water treatment sludge minimizing intermittent motion apparatus and method for being interrupted dephosphorization, belong to water-treatment technology field, formed using pumping plant, setting pot, sbr reactor pond and coagulation for phosphorus removal pond, there is two or more sbr reactor pond in parallel, phosphorus online water outlet detection device is installed on the outlet pipe of reaction tank, reaction tank connects coagulation for phosphorus removal pond, the pipeline between coagulation for phosphorus removal pond connection pumping plant and setting pot by pipeline and dephosphorization valve.The method of dephosphorization is that sewage enters each reaction tank, water after its processing is detected by the online water outlet detection device of phosphorus, when some reaction tank water outlet phosphorus content reaches setting value, close the valve of reaction tank, by way of stirring, phosphorus is set to be discharged into sewage, sewage is drained into coagulation for phosphorus removal pond after precipitation, phosphorus is removed from water using the method for chemical dephosphorization, except phosphorus sludge, discharge system, the pipeline that supernatant enters between pumping plant and setting pot are mixed into setting pot with sewage in the form of excess sludge.The problem of present invention solves activated sludge concentration height, and activated sludge mean residence time increases, and water outlet periodicity phosphorus is exceeded.
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 by taking the municipal sewage plant that a day handles 100,000 tons of sewage as an example, 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 processing account for the investment of whole sewage treatment plant and operating cost 25%~
65%, huge expense turns into the Tough questions that biological wastewater treatment technology faces.Therefore, increasing people praises highly sludge
Sources decreasing, i.e. technique do not produce excess sludge in itself or produce excess sludge on a small quantity.
For existing sludge sewage method handling process, the removal of phosphorus mainly passes through the discharge of excess sludge
Realize, the reduction of sludge discharge promotes the clearance of phosphorus to reduce.Therefore presence can not assist between mud decrement and biological phosphate-eliminating
The contradiction of tune --- mud decrement effect is better, and caused surplus sludge volume is fewer, and phosphor-removing effect is poorer.
At present, all it is to be combined to form complex art by physics, chemistry and a variety of methods of biology in report, or according to
Need to improve traditional handicraft, kinds of processes is combined into integrated new technology, new technology could be during sludge reduction in fact
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, conventional A2/ O works
Skill+sludge reduction system+bypass chemical phosphorus removal system, conventional 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, cost is high.
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 interval for being interrupted dephosphorization
Running gear.
Invention also provides the method using the interruption dephosphorization of this device.
Apparatus of the present invention are formed 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 connects contact chamber by outlet pipe, installs the online water outlet detection device of phosphorus and flowing water Valve on outlet pipe, 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 into by pumping plant at setting pot
After reason, into each sbr reactor pond, the water after its processing is detected by the online water outlet detection device of phosphorus, works as water outlet
When phosphorus content is less than setting value, water outlet carries out disinfection and discharged into contact chamber;When some sbr reactor pond water outlet phosphorus content reaches
During setting value, close outlet pipe on flowing water Valve, intake 20min after close water inlet pipe on valve, pass through the side of stirring
Formula, 3-4 hours are run, the phosphorus in sbr reactor pond in activated sludge is discharged into sewage, after reprecipitation 2-3 hours, sewage
It is drained into coagulation for phosphorus removal pond, dosing stirring precipitates 25-40min, and phosphorus is removed from water using the method for chemical dephosphorization, removed
Phosphorus sludge discharge system in the form of excess sludge, the pipeline that supernatant enters between pumping plant and setting pot are mixed into sewage
Setting pot.
Whole process controls sbr reactor pond sludge concentration under conditions of 6000-8000mg/L, to design operation 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 for 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
It is small, anaerobic environment is easily formed inside zoogloea so as to which anti-nitration reaction occur.
3rd, sludge concentration is high in SBR ponds in invention, and sludge loading reduces, and 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, solves the problem of activated sludge concentration is high, and activated sludge mean residence time increases, and water outlet periodicity phosphorus is exceeded.
5th, high sludge concentration, underload, sludge yield are low
6th, dephosphorization periodically is carried out to small part water, reduces total investment of engineering, reduce operating cost.
Brief description of the drawings
Fig. 1 is the schematic diagram of apparatus of the present invention.
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 detection device 8 of phosphorus and water outlet are installed on outlet pipe 7
Valve 9, inlet valve 10 is installed between setting pot 3 and each SBR reaction tanks 4, sbr reactor pond 4 passes through pipeline and dephosphorization valve
Door 11 connects coagulation for phosphorus removal pond 5, and coagulation for phosphorus removal pond 5 connects the pipeline between pumping plant 2 and setting pot 3.
The method of dephosphorization is that sewage intercepts big suspension and floating object by grid, then is sent into by pumping plant at setting pot
After reason, into each sbr reactor pond, the water after its processing is detected by the online water outlet detection device of phosphorus, works as water outlet
When phosphorus content is less than setting value, water outlet carries out disinfection and discharged into contact chamber;When some sbr reactor pond water outlet phosphorus content reaches
During setting value, close outlet pipe on flowing water Valve, intake 20min after close water inlet pipe on valve, pass through the side of stirring
Formula, run 4 hours, the phosphorus in sbr reactor pond in activated sludge is discharged into sewage, reprecipitation was discharged into sewage after 3 hours
Into coagulation for phosphorus removal pond, dosing stirring 1min, 30min is precipitated, phosphorus is removed from water using the method for chemical dephosphorization, dephosphorization is dirty
Mud discharge system in the form of excess sludge, the pipeline that supernatant enters between pumping plant and setting pot are mixed into sand setting with sewage
Pond.
Whole process controls sbr reactor pond sludge concentration under conditions of 6000-8000mg/L, to design operation 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 for 20%-30%.
Claims (1)
- A kind of 1. municipal waste water treatment sludge minimizing intermittent duty method for being interrupted dephosphorization, it is characterised in that:The device of use Including 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 are sunk Two or more sbr reactor pond in parallel is connected between sand pond and contact chamber, each sbr reactor pond passes through outlet pipe connection contact Pond, the online water outlet detection device of phosphorus and flowing water Valve are installed on outlet pipe, be provided between setting pot and each sbr reactor pond into Penstock, sbr reactor pond connect coagulation for phosphorus removal pond by pipeline and dephosphorization valve, coagulation for phosphorus removal pond connection pumping plant and setting pot it Between pipeline;Sewage intercepts big suspension and floating object by grid, then after being sent into setting pot processing by pumping plant, into each SBR Reaction tank, the water after its processing is detected by the online water outlet detection device of phosphorus, when water outlet phosphorus content is less than setting value When, water outlet carries out disinfection and discharged into contact chamber;When some sbr reactor pond water outlet phosphorus content reaches setting value, close out Flowing water Valve on water pipe, the valve that water inlet is closed on water inlet pipe after 20 minutes, by way of stirring, 3-4 hours are run, are made Phosphorus in sbr reactor pond in activated sludge is discharged into sewage, and after reprecipitation 2-3 hours, sewage is drained into coagulation for phosphorus removal pond In, dosing stirring precipitates 25-40 minutes, phosphorus is removed from water using the method for chemical dephosphorization, except phosphorus sludge is with excess sludge Form discharge system, supernatant enters pipeline between pumping plant and setting pot and is mixed into setting pot with sewage;Whole process controls sbr reactor pond sludge concentration under conditions of 6000-8000mg/L, to design the operation 3-4 cycles daily, Each cycle 6-8 hours, wherein water inlet 0.5-1 hours, aeration 3-5 hours, precipitation 0.5-1 hours, draining 0.5-1 hours, standby 0.5-1 hours, draining ratio are 20%-30%.
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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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CN101891345B (en) * | 2010-07-13 | 2012-06-27 | 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 |
CN102659288B (en) * | 2012-05-21 | 2013-09-11 | 重庆大学 | Low-carbon-source sewage treatment system for reinforcing denitrification and dephosphorization functions and method |
CN104609651B (en) * | 2015-01-06 | 2016-04-06 | 东华大学 | A kind of Large-scale pig farm advanced waste treatment system |
CN105776758B (en) * | 2016-04-20 | 2018-09-28 | 安徽国祯环保节能科技股份有限公司 | A kind of Modified SBR sewage treatment process of IV class of surface water up to standard |
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