CN206624748U - A kind of municipal waste water treatment sludge minimizing intermittent motion apparatus for being interrupted dephosphorization - Google Patents
A kind of municipal waste water treatment sludge minimizing intermittent motion apparatus for being interrupted dephosphorization Download PDFInfo
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- CN206624748U CN206624748U CN201720330103.3U CN201720330103U CN206624748U CN 206624748 U CN206624748 U CN 206624748U CN 201720330103 U CN201720330103 U CN 201720330103U CN 206624748 U CN206624748 U CN 206624748U
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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 the utility model solves activated sludge concentration height, and activated sludge mean residence time increases, and water outlet periodicity phosphorus is exceeded.
Description
Technical field
The utility model 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.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of municipal waste water treatment sludge minimizing for being interrupted dephosphorization
Intermittent motion apparatus.
The utility model is 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, by way of stirring,
3-4 hours are run, the phosphorus in sbr reactor pond in activated sludge is discharged into sewage, after reprecipitation 2-3 hours, sewage is arranged
Enter into 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 the pipeline that supernatant enters between pumping plant and setting pot is mixed into sewage
Sand 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%.
The advantages of the utility model：
1st, sludge concentration is high compared with sludge concentration in conventional SBR pond in the utility model SBR ponds, and sludge is local in reactor
Deposition can be produced, anoxia phenomenon occurs and anti-nitration reaction occurs.
2nd, sludge concentration is high in SBR ponds in utility model, and biological zoogloea diameter is relatively large, and its own is dissolved by extroversion
Oxygen reduces, and anaerobic environment is easily formed inside zoogloea so as to which anti-nitration reaction occur.
3rd, sludge concentration is high in SBR ponds in utility model, and sludge loading reduces, and sludge age increases, the concentration of nitrobacteria
It is of a relatively high, 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 schematic diagram of the present utility model.
Embodiment
The utility model uses 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 outlet valve are installed on outlet pipe 7
Door 9, inlet valve 10 is installed 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, 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, by way of stirring,
Operation 4 hours, makes the phosphorus in sbr reactor pond in activated sludge be discharged into sewage, reprecipitation was drained into sewage after 3 hours
In coagulation for phosphorus removal pond, dosing stirring 1min, 30min is precipitated, phosphorus is removed from water using the method for chemical dephosphorization, except phosphorus sludge
The 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 motion apparatus for being interrupted dephosphorization, it is characterised in that：It using grid, Pumping plant, setting pot, sbr reactor pond, coagulation for phosphorus removal pond and contact chamber are formed, 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 detection device of phosphorus and flowing water Valve are installed on outlet pipe, are provided between setting pot and each sbr reactor pond into water 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720330103.3U CN206624748U (en) | 2017-03-30 | 2017-03-30 | A kind of municipal waste water treatment sludge minimizing intermittent motion apparatus for being interrupted dephosphorization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720330103.3U CN206624748U (en) | 2017-03-30 | 2017-03-30 | A kind of municipal waste water treatment sludge minimizing intermittent motion apparatus for being interrupted dephosphorization |
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| CN206624748U true CN206624748U (en) | 2017-11-10 |
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| CN201720330103.3U Active CN206624748U (en) | 2017-03-30 | 2017-03-30 | A kind of municipal waste water treatment sludge minimizing intermittent motion apparatus for being interrupted dephosphorization |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110563156A (en) * | 2019-08-23 | 2019-12-13 | 宁夏元蔚环保科技有限公司 | SBBR sewage treatment device and method for efficiently removing nitrogen and phosphorus |
-
2017
- 2017-03-30 CN CN201720330103.3U patent/CN206624748U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110563156A (en) * | 2019-08-23 | 2019-12-13 | 宁夏元蔚环保科技有限公司 | SBBR sewage treatment device and method for efficiently removing nitrogen and phosphorus |
| CN110563156B (en) * | 2019-08-23 | 2023-12-26 | 宁夏元蔚环保科技有限公司 | SBBR sewage treatment device and method for high-efficiency denitrification and dephosphorization |
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