CN106830568A - A kind of biochemistry pool is aerated the method for the treatment of city waste water and device of intermitten service - Google Patents
A kind of biochemistry pool is aerated the method for the treatment of city waste water and device of intermitten service Download PDFInfo
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- CN106830568A CN106830568A CN201710202622.6A CN201710202622A CN106830568A CN 106830568 A CN106830568 A CN 106830568A CN 201710202622 A CN201710202622 A CN 201710202622A CN 106830568 A CN106830568 A CN 106830568A
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- Prior art keywords
- aeration
- aerobic section
- stops
- section
- hours
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- 238000000034 method Methods 0.000 title abstract description 5
- 239000002351 wastewater Substances 0.000 title abstract description 3
- 238000005273 aeration Methods 0.000 claims abstract description 70
- 239000010802 sludge Substances 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000005276 aerator Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000010992 reflux Methods 0.000 claims abstract description 8
- 239000010865 sewage Substances 0.000 claims description 18
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 2
- 238000011017 operating method Methods 0.000 claims description 2
- 238000004062 sedimentation Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000002028 Biomass Substances 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000005842 biochemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013440 design planning Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000002631 hypothermal effect Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000004576 sand Substances 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
- 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
-
- 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
-
- 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
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)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Activated Sludge Processes (AREA)
Abstract
A kind of biochemistry pool is aerated the method for the treatment of city waste water and device of intermitten service, belong to water-treatment technology field, its device uses grid, setting pot, preliminary sedimentation tank, three sections of ponds, second pond and contact chamber are constituted, three sections of ponds therein mainly include anaerobism section, anoxic section, aerobic section, water inlet pipe, aeration tube, aerator and nitrification liquid return duct and interior reflux pump, aerator is laid on the bottom of pond portion of aerobic section, it is fitted with controlling valve between aeration tube and each aerator, and aerobic section is divided into leading portion, stage casing and back segment, three sections of length respectively accounts for 2nd/to five/5th of aerobic section total length.According to different temperatures and sludge concentration, the leading portion of aerobic section, stage casing and back segment stop aeration gradually within a period of time.The present invention improves biochemistry pool biomass, reduces system operation energy consumption.
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
Using A more present the municipal sewage plant2O techniques, processing unit be by grid, setting pot, preliminary sedimentation tank, three sections
Pond（A2O reaction tanks, including anaerobism section, anoxic section and aerobic section, hereinafter referred to as three sections ponds）, second pond and contact chamber constitute, its
In three sections of ponds by anaerobism section, anoxic section, aerobic section, water inlet pipe, aeration tube, aerator, nitrification liquid return duct and interior reflux pump
Constitute, aerator is laid on the bottom of pond portion of aerobic section, second pond connects three sections of anaerobism sections in pond by mud return line.City is dirty
Water intercepts big suspension and drift by grid；Subsequently into setting pot, the larger particle of proportion in separation sewage；It is heavy
The water outlet of sand pond enters preliminary sedimentation tank, removes suspension in water removal, mitigates the load of subsequent treatment facility；Preliminary sedimentation tank water outlet is dirty with backflow
After mud enters three sections of anaerobism sections in pond, aerobic section is entered after anoxic section mixes with backflow nitrification liquid, mixed liquor is in three sections of ponds
Biochemical reaction is carried out, the mixed liquor after decomposing harmful substances enters back into second pond and precipitated, and water outlet is disappeared into contact chamber
Discharged after poison, the sludge reflux of second pond bottom to three sections of anaerobism sections in pond, unnecessary mud discharging falls.
Often there is following phenomenon in North City sewage treatment plant winter operation, effluent quality is not up to standard, second pond
Mud-water separation effect is bad, and partial sludge is lost in water outlet, and sludge reflux concentration is low, and the total sludge quantity of system is reduced, and dirty
Mud dewatering difference etc..According to design specification when main cause is Designing Sewage Treatment Plant, by design water, design water quality,
Design water temperature is designed, and is then checked by maximum, minimum amount of water.Can not can guarantee that under extreme conditions, such as at sewage
Reason system hypothermia also can stably reaching standard when running.
In order to solve the problems, such as North City sewage treatment plant winter operation, typically increase water is taken in actual motion
The power residence time, reduce sludge loading, the measure of increase return sludge ratio etc. and set meeting municipal sewage plant's treatment water water quality
The establishing criteria of meter is urban wastewater treatment firm pollutant emission standard（GB18918-2002）Emission request.But these measures
Construction investment and operating cost can not only be increased, and the effect of sewage disposal also is difficult to be guaranteed, and can also often cause sludge
The problems such as expansion.
Separately there is document report, water outlet during sewage disposal system cold operation is solved with biochemical reaction tank sludge concentration is improved
The problem of effect difference.But biochemistry pool sludge concentration is raised, and can aggravate the load of second pond, it is exceeded design planning, so as to lead
Cause secondary clarifier effluent still not up to standard.
The content of the invention
The technical problem to be solved in the present invention is to provide the urban sewage treating device that a kind of biochemistry pool is aerated intermitten service.
The present invention is further simultaneously disclosed and uses the operating method of this device.
Present invention solves the technical problem that scheme be using grid, setting pot, preliminary sedimentation tank, three sections of ponds, second ponds and connect
Touch pond to constitute, three sections of ponds therein are flowed back by anaerobism section, anoxic section, aerobic section, water inlet pipe, aeration tube, aerator and nitrification liquid
Pipe and interior reflux pump are constituted, and aerator is laid on the bottom of pond portion of aerobic section, and control is fitted between aeration tube and each aerator
Valve processed, and aerobic section is divided into leading portion, stage casing and back segment, the wherein length of leading portion, stage casing and back segment respectively accounts for aerobic section overall length
2nd/to five/5th of degree.
When sewage treatment plant is in cold operation, Aerobic Pond nitrification liquid normal reflow；When water inlet water temperature 12 ~ 15 DEG C it
Between, in the case of 6000 ~ 8000mg/L, whole aerobic section stops aeration 1 time to sludge concentration in 24 hours, dwell time 2-3h stops
First back segment stops aeration headed by the scheme being only aerated, and aeration is stopped by stage casing after 40 ~ 60min, then by 40 ~ 60min leading portions
Stop aeration；In the case of 8000 ~ 10000mg/L, whole aerobic section stops aeration 1 time to sludge concentration in 12 hours, dwell time
2-3h, first back segment stops aeration headed by stopping the scheme of aeration, and aeration is stopped by stage casing after 40 ~ 60min, then by 40 ~
60min leading portions stop aeration；When water temperature of intaking is at 7 ~ 12 DEG C, sludge concentration is whole aerobic in the case of 6000 ~ 8000mg/L
Section stops aeration 1 time in 12 hours, dwell time 2-3h, and first back segment stops aeration headed by stopping the scheme of aeration, by 40 ~
Stage casing stops aeration after 60min, then stops being aerated by 40 ~ 60min leading portions；Sludge concentration is in 8000 ~ 10000mg/L situations
Under, whole aerobic section stops aeration 1 time in 12 hours, dwell time 3-4h, and first back segment stops aeration headed by stopping the scheme of aeration,
Stop aeration by stage casing after 60 ~ 80min, then stop being aerated by 60 ~ 80min leading portions.
Second pond sludge is 100% by reflux ratio.
When sewage treatment plant is in cold operation, taking when stop aeration mode in foregoing invention and running, stop aeration
Duan Chengwei sludge settlings area, declines into second pond mud mixed liquid sludge concentration, and second pond load is not increased.
Advantages of the present invention：
1st, when northern sewage treatment plant's winter operation, aeration is stopped by closing on aerobic section aeration tube total valve, makes it
As sludge settling area.
2nd, when biochemistry pool stops being aerated, processed in it in quiescent setting state, the dirt that should will can be settled in second pond
Mud, carries in aerobic section precipitation, increases aerobic section activated sludge concentration, improves biochemistry pool biomass.
3rd, when aerobic section stops being aerated, the concentration into second pond muddy water mixed solution declines, and reduces second pond load,
But sludge normal reflow, so sludge quantity treatment reduction state in sedimentation basin, sludge blanket reduction, are conducive to second pond muddy water point
From.
4th, when aerobic section stops aeration, certain dissolved oxygen is still suffered from activated sludge, forms anaerobic environment, formd
Denitrogenation environment.
5th, aerobic section interruption stops the method for operation of aeration, reduces system operation energy consumption.
Brief description of the drawings
Fig. 1 is apparatus of the present invention schematic diagram；
Fig. 2 is three sections of pond schematic diagrames.
Specific embodiment
Apparatus of the present invention are constituted using grid 1, setting pot 2, preliminary sedimentation tank 3, three sections of ponds 4, second pond 5 and contact chambers 6, wherein
Three sections of ponds 4 by anaerobism section 7, anoxic section 8, aerobic section 9, water inlet pipe 14, aeration tube 11, aerator 10, nitrification liquid return duct 13
Constituted with interior reflux pump 12, aerator 10 is laid on the bottom of pond portion of aerobic section 9, pacifies between aeration tube 11 and each aerator 10
Equipped with control valve 15, and aerobic section 9 is divided into leading portion 16, stage casing 17 and back segment 18, wherein leading portion 16, stage casing 17 and back segment 18
Length respectively account for 1/3rd of aerobic section total length.
When sewage treatment plant is in cold operation, Aerobic Pond nitrification liquid normal reflow；When water inlet water temperature 12 ~ 15 DEG C it
Between, in the case of 6000 ~ 8000mg/L, whole aerobic section stops aeration 1 time to sludge concentration in 24 hours, and dwell time 3h stops
First back segment stops aeration headed by the scheme of aeration, and aeration is stopped by stage casing after 60min, then stops being aerated by 60min leading portions；
In the case of 8000 ~ 10000mg/L, whole aerobic section stops aeration 1 time to sludge concentration in 12 hours, dwell time 3h, stops exposing
First back segment stops aeration headed by the scheme of gas, and aeration is stopped by stage casing after 60min, then stops being aerated by 60min leading portions；When
At 7 ~ 12 DEG C, in the case of 6000 ~ 8000mg/L, whole aerobic section stops aeration 1 time to sludge concentration to water inlet water temperature in 12 hours,
Dwell time 3h, first back segment stops aeration headed by stopping the scheme of aeration, stops aeration by stage casing after 60min, then pass through
60min leading portions stop aeration；In the case of 8000 ~ 10000mg/L, whole aerobic section stops aeration 1 time to sludge concentration in 12 hours,
Dwell time 4h, first back segment stops aeration headed by stopping the scheme of aeration, stops aeration by stage casing after 80min, then pass through
80min leading portions stop aeration.
Claims (2)
1. a kind of biochemistry pool is aerated the urban sewage treating device of intermitten service, it is characterised in that：Using grid, setting pot, just
Heavy pond, three sections of ponds, second pond and contact chambers are constituted, and three sections of ponds therein are by anaerobism section, anoxic section, aerobic section, water inlet pipe, aeration
Pipe, aerator and nitrification liquid return duct and interior reflux pump are constituted, and aerator is laid on the bottom of pond portion of aerobic section, aeration tube and each
It is fitted with controlling valve between aerator, and aerobic section is divided into leading portion, stage casing and back segment, wherein leading portion, stage casing and back segment
Length respectively account for 2nd/1st to five/5th of aerobic section total length.
2. the operating method of sewage-treatment plant according to claim 1, it is characterised in that：When sewage treatment plant is in low temperature
During operation, Aerobic Pond nitrification liquid normal reflow；When water inlet water temperature is between 12 ~ 15 DEG C, sludge concentration is in 6000 ~ 8000mg/L feelings
Under condition, whole aerobic section stops aeration 1 time in 24 hours, dwell time 2-3 hours, and first back segment stops headed by stopping the scheme of aeration
Aeration, stops aeration, then stop aeration by 40 ~ 60 minutes leading portions by stage casing after 40 ~ 60 minutes；Sludge concentration 8000 ~
In the case of 10000mg/L, whole aerobic section stops aeration 1 time in 12 hours, dwell time 2-3 hours, and the scheme for stopping aeration is
Back segment stops aeration first, stops aeration by stage casing after 40 ~ 60 minutes, then stop aeration by 40 ~ 60 minutes leading portions；When entering
At 7 ~ 12 DEG C, in the case of 6000 ~ 8000mg/L, whole aerobic section stops aeration 1 time to sludge concentration to water water temperature in 12 hours, stop
Only time 2-3 hours, first back segment stopped aeration headed by stopping the scheme of aeration, and aeration is stopped by stage casing after 40 ~ 60 minutes, then
Stop aeration by 40 ~ 60 minutes leading portions；In the case of 8000 ~ 10000mg/L, whole aerobic section stops sludge concentration in 12 hours
Aeration 1 time, dwell time 3-4 hours, first back segment stopped aeration headed by stopping the scheme of aeration, by stage casing after 60 ~ 80 minutes
Stop aeration, then stop aeration by 60 ~ 80 minutes leading portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710202622.6A CN106830568A (en) | 2017-03-30 | 2017-03-30 | A kind of biochemistry pool is aerated the method for the treatment of city waste water and device of intermitten service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710202622.6A CN106830568A (en) | 2017-03-30 | 2017-03-30 | A kind of biochemistry pool is aerated the method for the treatment of city waste water and device of intermitten service |
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| Publication Number | Publication Date |
|---|---|
| CN106830568A true CN106830568A (en) | 2017-06-13 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710202622.6A Pending CN106830568A (en) | 2017-03-30 | 2017-03-30 | A kind of biochemistry pool is aerated the method for the treatment of city waste water and device of intermitten service |
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| CN (1) | CN106830568A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029981A (en) * | 2021-03-08 | 2021-06-25 | 长春工程学院 | Method for detecting sludge total phosphorus of urban sewage plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200949077Y (en) * | 2006-07-28 | 2007-09-19 | 重庆大学 | Active sludge-biological film combined type integral sewage treatment equipment |
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| US20130015124A1 (en) * | 2011-07-15 | 2013-01-17 | Yong Su Choi | Apparatus and method for alternative aeration-effluent wastewater treatment using ceramic membrane |
| CN103058464A (en) * | 2013-01-16 | 2013-04-24 | 福建安井食品股份有限公司 | Intermittent-continuous aeration process for aerobic tanks |
| CN103880181A (en) * | 2014-03-10 | 2014-06-25 | 北京工业大学 | Improved A2/O process of continuously shortcut nitrifying and denitrifying dephosphatation |
| CN103991960A (en) * | 2014-05-27 | 2014-08-20 | 青岛思普润水处理有限公司 | Biological membrane and activated sludge composite sewage treatment system |
| 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 |
| CN206654824U (en) * | 2017-03-30 | 2017-11-21 | 东北师范大学 | A kind of urban sewage treating device of biochemistry pool aeration intermitten service |
-
2017
- 2017-03-30 CN CN201710202622.6A patent/CN106830568A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200949077Y (en) * | 2006-07-28 | 2007-09-19 | 重庆大学 | Active sludge-biological film combined type integral sewage treatment equipment |
| US20130015124A1 (en) * | 2011-07-15 | 2013-01-17 | Yong Su Choi | Apparatus and method for alternative aeration-effluent wastewater treatment using ceramic membrane |
| CN102502963A (en) * | 2011-11-04 | 2012-06-20 | 浦华环保有限公司 | Multi-mode sequencing batch active sludge sewage treatment method and system |
| CN103058464A (en) * | 2013-01-16 | 2013-04-24 | 福建安井食品股份有限公司 | Intermittent-continuous aeration process for aerobic tanks |
| CN103880181A (en) * | 2014-03-10 | 2014-06-25 | 北京工业大学 | Improved A2/O process of continuously shortcut nitrifying and denitrifying dephosphatation |
| CN103991960A (en) * | 2014-05-27 | 2014-08-20 | 青岛思普润水处理有限公司 | Biological membrane and activated sludge composite sewage treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029981A (en) * | 2021-03-08 | 2021-06-25 | 长春工程学院 | Method for detecting sludge total phosphorus of urban sewage plant |
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Application publication date: 20170613 |