CN106800362A - A kind of municipal sewage often, the processing method of two kinds of operational modes of low temperature and device - Google Patents
A kind of municipal sewage often, the processing method of two kinds of operational modes of low temperature and device Download PDFInfo
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- CN106800362A CN106800362A CN201710202658.4A CN201710202658A CN106800362A CN 106800362 A CN106800362 A CN 106800362A CN 201710202658 A CN201710202658 A CN 201710202658A CN 106800362 A CN106800362 A CN 106800362A
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- Prior art keywords
- pond
- mud
- collecting well
- sections
- spoil disposal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000010865 sewage Substances 0.000 title claims abstract description 29
- 238000003672 processing method Methods 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000010802 sludge Substances 0.000 claims abstract description 36
- 238000004062 sedimentation Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 238000010992 reflux Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000005842 biochemical reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- C02F2209/001—Upstream control, i.e. monitoring for predictive control
-
- 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
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- 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
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- 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
Landscapes
- 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)
- Treatment Of Sludge (AREA)
Abstract
A kind of municipal sewage is normal, the processing method and device of two kinds of operational modes of low temperature, belong to water-treatment technology field, using grid, setting pot, preliminary sedimentation tank, three sections of ponds, second pond, contact chamber and mud-collecting well are constituted, second pond and mud-collecting well have two groups respectively, second pond is by pond body, water inlet pipe, central tube, outlet pipe, dredging tube and spoil disposal house steward are constituted, bottom interposition is equipped with sludge hopper, the inner connection central tube, central tube is vertically installed in the middle of pond body, bottom opening is in sludge hopper position, four sides in pond body near pond body inwall is separately installed with a dredging tube, each dredging tube bottom connects spoil disposal house steward jointly, spoil disposal house steward connects mud-collecting well.Its processing method is to control three sections of pond winter sludge concentrations between 6000 8000mg/L, and two second pond alternate intermittents run, and during a job, another is quiet heavy.Returned sludge concentration increase of the present invention, dissolving oxygen transfer efficiency increases, and increased quiescent setting link, makes have clearly interface between muddy water, improves secondary clarifier effluent water quality.
Description
Technical field
The invention belongs to water-treatment technology field, and in particular to a kind of processing method of municipal sewage and the dress for being used
Put.
Background technology
At present, the establishing criteria of municipal sewage plant's treatment water water quality design is urban wastewater treatment firm pollutant emission
Standard（GB18918-2002）.Biochemical treatment unit in municipal sewage plant's is most to use anaerobic- anoxic- oxic activated sludge process
（A2O methods）, the specification of design institute foundation is Code for design of outdoor sewerage engineering（GB50014-2006）With anaerobic- anoxic- oxic activity
Sludge sewage treatment project technical specification（HJ 576-2010）.Specifically processing unit is by grid, setting pot, just sinks
Pond, three sections of ponds（A2O reaction tanks）, second pond, contact chamber and mud-collecting well constitute, municipal sewage intercepts big suspension by grid
Thing and drift；Subsequently into setting pot, the larger particle of proportion in separation sewage；Setting pot water outlet enters preliminary sedimentation tank, removal
Suspension in water, mitigates the load of subsequent treatment facility；After preliminary sedimentation tank water outlet enters three sections of anaerobism sections in pond with returned sludge,
Anoxic section enters aerobic section after mixing with backflow nitrification liquid, and mixed liquor carries out biochemical reaction, decomposing harmful substances in three sections of ponds
Mixed liquor afterwards enters back into second pond and is precipitated, and water outlet is discharged after being carried out disinfection into contact chamber, and second pond is by collecting mud
Well spoil disposal a, part is back to three sections of ponds, and a part is discharged in the form of excess sludge.
According to current specifications design, the northern area of China be completed operation with A2O is the sewage treatment plant of main body in the winter
Stably reaching standard typically difficult to realize when Ji Shuiwen is relatively low.Because municipal sewage plant is by design water, design water during design
Matter, design water temperature are designed, and are then checked by maximum, minimum amount of water, and design can not can guarantee that in extreme environment situation
Under, also can stably reaching standard during such as low temperature.
There is sewage treatment plant using extension dwell time of sewage at present, increase sludge reflux amount to improve biochemical reaction tank dirt
Mud concentration, and then improve secondary clarifier effluent water quality.Because during normal temperature microbial activity it is high, it is necessary to sludge concentration it is low, during low temperature
Microorganism active low, it is necessary to sludge concentration it is high, therefore during municipal sewage low temperature, it is effective to improve biochemistry pool sludge concentration
Method.But due to sewage treatment plant built at present and code requirement, the reaction tank mixed liquor of high concentration enters into second pond,
Exceed the disposal ability that current design specification is designed second pond, have impact on the application of high CO_2 density.
The content of the invention
The technical problem to be solved in the present invention be to provide a kind of municipal sewage often, two kinds for the treatment of sides of operational mode of low temperature
Method.
The present invention further simultaneously discloses the device that this processing method is used.
Present invention solves the technical problem that scheme be using grid, setting pot, preliminary sedimentation tank, three sections of ponds, second pond, contacts
Pond and mud-collecting well constitute municipal sewage often, two kinds of processing units of operational mode of low temperature, the water side in three sections of ponds is connected with water distribution
Well, second pond has two, is divided into left second pond and right second pond, and mud-collecting well has two, is divided into left mud-collecting well and right mud-collecting well, matches somebody with somebody
Well connects left second pond and right second pond respectively by converter, and left second pond is connected with left mud-collecting well, right second pond connection
There is right mud-collecting well, left mud-collecting well and right mud-collecting well connect three sections of anaerobism sections in ponds jointly, and left second pond and right second pond connect jointly
Contact chamber is connect, wherein, left second pond is made up of pond body, water inlet pipe, central tube, outlet pipe, dredging tube and spoil disposal house steward, and pond body is
Square, bottom interposition is equipped with sludge hopper, and the outer end connection distribution well of water inlet pipe, the inner connection central tube, central tube is pacified vertically
In the middle of pond body, bottom opening is in sludge hopper position, and the four sides in pond body near pond body inwall is separately installed with a suction
Mud pipe, dredging tube uses perforated pipe, dredging tube top in pond body pond centre position high, each dredging tube bottom row of connection jointly
Mud house steward, spoil disposal house steward connects left mud-collecting well by sludge hopper bottom, and outlet pipe is connected on pond body top with contact chamber.Right two
Heavy pond is identical with the heavy pool structure of the second from left, and the spoil disposal house steward of right second pond connects right mud-collecting well.
Its processing method be three sections of pond winter sludge concentrations of control between 6000-8000mg/L, left second pond and right two
Heavy pond alternate intermittent operation, control reversal valve makes to have been injected between right second pond and three sections of ponds of the sewage after three sections of pond treatment
Water inlet pipe is closed, and closes the spoil disposal house steward of right second pond, makes sewage quiet heavy 2~5 hours, the heavy pool side of the second from left in the above-mentioned time
Water inlet, side water outlet, while opening spoil disposal house steward carries out sludge reflux, and will sink to the sludge of pond body bottom and are sent to left mud-collecting well again
Three sections of ponds are returned to, unnecessary mud discharging falls.
Because winter sewage flocculation ability is weak, settling property is poor, it is not easy to dense sludge is formed in second pond,
So using central tube, making sewage be returned to top from the bottom of pond body, begin to inhale from the intermediate altitude of pond body using dredging tube
Enter concentration sludge still very high.
Its operation principle is first that so that fill the right second pond quiescent setting of water for a period of time, will effectively can so contain
Have high concentration sludge amount fully carries out mud-water separation, while left second pond works, reaches the purpose of alternate intermittent operation.
If in running at normal temperature, just can be being changed into a second pond and continuously run only with one of second pond
Pattern.
The invention has the advantages that：
1st, by regulation and control, the operation mould that traditional form precipitation is combined with quiescent setting when municipal sewage continuous stream is run is realized
Formula.
2nd, activated sludge light weight, is easily taken away by the water, especially north of china in winter activated sludge volume index increase, mud-water separation effect
Really poor, second pond alternate run increased quiescent setting link, make have clearly interface between muddy water, improves second pond and goes out
Water water quality.
3rd, during alternate run, when second pond is in quiescent setting state, second pond hydraulic detention time is increased, together
When its interior sludge condensation time it is elongated.
4th, second pond alternate run, returned sludge concentration increase, aeration tank sludge concentration increases, load reduction, dissolved oxygen
Transfer efficiency increases.
Brief description of the drawings
Fig. 1 is apparatus of the present invention schematic diagram；
Fig. 2 is second pond sectional view.
Specific embodiment
Apparatus of the present invention are made up of grid 1, setting pot 2, preliminary sedimentation tank 3, three sections of ponds 4, second pond, contact chamber 5 and mud-collecting wells
Municipal sewage is normal, two kinds of processing units of operational mode of low temperature, and the water side in three sections of ponds 4 is connected with distribution well 6, and second pond has two
It is individual, it is divided into left second pond 7 and right second pond 8, mud-collecting well has two, is divided into left mud-collecting well 9 and right mud-collecting well 10, and distribution well 6 leads to
Cross converter and connect left second pond 7 and right second pond 8 respectively, left second pond 7 is connected with left mud-collecting well 9, and right second pond 8 is connected with
Right mud-collecting well 10, left mud-collecting well 9 and right mud-collecting well 10 connect three sections of ponds 4 jointly, and left second pond 7 and right second pond 8 are connected jointly
Contact chamber 5, wherein, left second pond 7 is by pond body 11, water inlet pipe 12, central tube 13, outlet pipe 14, dredging tube 15 and spoil disposal house steward
16 are constituted, and pond body 11 is square, and bottom interposition is equipped with sludge hopper 17, the outer end connection distribution well 6 of water inlet pipe 12, the inner connection
Central tube 13, central tube 13 is vertically installed in the middle of pond body 11, and bottom opening is in the position of sludge hopper 17, near pond in pond body 11
The four sides of the inwall of body 11 is separately installed with a dredging tube 15, and dredging tube 15 uses perforated pipe, and the top of dredging tube 15 is in pond body 11
Pond centre position high, each bottom of dredging tube 15 connects spoil disposal house steward 16 jointly, and spoil disposal house steward 16 passes through the bottom of sludge hopper 17
Left mud-collecting well 9 is connected, outlet pipe 14 is connected on the top of pond body 11 with contact chamber 5；Right second pond is identical with the heavy pool structure of the second from left,
The spoil disposal house steward of right second pond connects right mud-collecting well.
Its processing method be three sections of pond winter sludge concentrations of control between 6000-8000mg/L, left second pond and right two
Heavy pond alternate intermittent operation, control reversal valve makes to have been injected between right second pond and three sections of ponds of the sewage after three sections of pond treatment
Water inlet pipe is closed, and closes the spoil disposal house steward of right second pond, makes sewage quiet heavy 3 hours, and the heavy pool side of the second from left enters in the above-mentioned time
Water, side water outlet, while opening spoil disposal house steward carries out sludge reflux, and will sink to the sludge of pond body bottom and are sent to left mud-collecting well and return again
Three sections of ponds are gone back to, unnecessary mud discharging falls.
Claims (2)
1. a kind of municipal sewage often, two kinds of processing units of operational mode of low temperature, it is characterised in that：It include grid, setting pot,
Preliminary sedimentation tank, three sections of ponds, second pond, contact chamber and mud-collecting wells, the water side in three sections of ponds are connected with distribution well, and second pond has two,
It is divided into left second pond and right second pond, mud-collecting well there are two, is divided into left mud-collecting well and right mud-collecting well, distribution well is by converter point
Left second pond and right second pond are not connected, and left second pond is connected with left mud-collecting well, and right second pond is connected with right mud-collecting well, Zuo Jini
Well and right mud-collecting well connect three sections of anaerobism sections in ponds jointly, and left second pond and right second pond connect contact chamber jointly, wherein, the second from left
Heavy pond is made up of pond body, water inlet pipe, central tube, outlet pipe, dredging tube and spoil disposal house steward, and pond body is square, bottom centre position
There is sludge hopper, the outer end connection distribution well of water inlet pipe, the inner connection central tube, central tube is vertically installed in the middle of pond body, bottom
Opening is in sludge hopper position, and a dredging tube is separately installed near the four sides of pond body inwall in pond body, and dredging tube is used and worn
Kong Guan, in pond body pond centre position high, each dredging tube bottom connects spoil disposal house steward jointly at dredging tube top, and spoil disposal house steward is led to
Cross sludge hopper bottom and connect left mud-collecting well, outlet pipe be connected on pond body top with contact chamber, right second pond and the second from left sink pool structure
Identical, the spoil disposal house steward of right second pond connects right mud-collecting well.
2. the sewage treatment method of device according to claim 1, it is characterised in that：During low temperature, three sections of pond winters of control are dirty
Between 6000-8000mg/L, left second pond and right second pond alternate intermittent run mud concentration, and control reversal valve makes to have been injected into three
Water inlet pipe between the right second pond of the sewage after the treatment of section pond and three sections of ponds is closed, and it is total to close the spoil disposal of right second pond
Pipe, makes sewage quiet heavy 2~5 hours, the heavy pool side water inlet of the second from left, side water outlet in the above-mentioned time, while opening spoil disposal house steward carries out dirt
Mud flows back, and will sink to the sludge of pond body bottom and be sent to left mud-collecting well and return again to three sections of ponds, and unnecessary mud discharging falls；In normal temperature
During lower operation, only with one of second pond, it is changed into a second pond continuous operation mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710202658.4A CN106800362A (en) | 2017-03-30 | 2017-03-30 | A kind of municipal sewage often, the processing method of two kinds of operational modes of low temperature and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710202658.4A CN106800362A (en) | 2017-03-30 | 2017-03-30 | A kind of municipal sewage often, the processing method of two kinds of operational modes of low temperature and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106800362A true CN106800362A (en) | 2017-06-06 |
Family
ID=58981535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710202658.4A Pending CN106800362A (en) | 2017-03-30 | 2017-03-30 | A kind of municipal sewage often, the processing method of two kinds of operational modes of low temperature and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106800362A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003126881A (en) * | 2001-10-24 | 2003-05-07 | Yanmar Co Ltd | Sludge concentration controller and wastewater treatment system provided with the same |
| CN203112589U (en) * | 2013-04-01 | 2013-08-07 | 宁波清天地环境工程有限公司 | Photovoltaic oligodynamic rural domestic sewage treatment device |
| CN103936229A (en) * | 2014-04-28 | 2014-07-23 | 华南理工大学 | Municipal sewage improved A2/O enhanced denitrification and dephosphorization treatment device and process |
| CN104341076A (en) * | 2013-08-02 | 2015-02-11 | 湖北盘古环保工程技术有限公司 | Continuous biochemical reaction and intermittent static precipitation integrated sewage treatment device |
| CN105060635A (en) * | 2015-08-07 | 2015-11-18 | 柴建中 | BBR urban sewage low temperature nitrogen removal treatment method |
| CN106167340A (en) * | 2016-08-22 | 2016-11-30 | 浙江工业大学 | A kind of AAO continuous-flow aerobic granular sludge denitrification dephosphorization technique and system |
| CN206680345U (en) * | 2017-03-30 | 2017-11-28 | 长春工程学院 | A kind of municipal sewage is normal, the processing unit of two kinds of operational modes of low temperature |
-
2017
- 2017-03-30 CN CN201710202658.4A patent/CN106800362A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003126881A (en) * | 2001-10-24 | 2003-05-07 | Yanmar Co Ltd | Sludge concentration controller and wastewater treatment system provided with the same |
| CN203112589U (en) * | 2013-04-01 | 2013-08-07 | 宁波清天地环境工程有限公司 | Photovoltaic oligodynamic rural domestic sewage treatment device |
| CN104341076A (en) * | 2013-08-02 | 2015-02-11 | 湖北盘古环保工程技术有限公司 | Continuous biochemical reaction and intermittent static precipitation integrated sewage treatment device |
| CN103936229A (en) * | 2014-04-28 | 2014-07-23 | 华南理工大学 | Municipal sewage improved A2/O enhanced denitrification and dephosphorization treatment device and process |
| CN105060635A (en) * | 2015-08-07 | 2015-11-18 | 柴建中 | BBR urban sewage low temperature nitrogen removal treatment method |
| CN106167340A (en) * | 2016-08-22 | 2016-11-30 | 浙江工业大学 | A kind of AAO continuous-flow aerobic granular sludge denitrification dephosphorization technique and system |
| CN206680345U (en) * | 2017-03-30 | 2017-11-28 | 长春工程学院 | A kind of municipal sewage is normal, the processing unit of two kinds of operational modes of low temperature |
Non-Patent Citations (3)
| Title |
|---|
| 刘琰萍等: "间歇运行提高二沉池负荷能力", 《化学工业与工程》 * |
| 张自杰: "《废水处理理论与设计》", 28 February 2002, 中国建筑工业出版社 * |
| 潘增辉: "《水生态文明建设研究与实践》", 31 December 2013, 河北科学技术出版社 * |
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Application publication date: 20170606 |