CN102020402A - Energy-saving sewage treatment method by membrane biological reactor (MBR) process - Google Patents
Energy-saving sewage treatment method by membrane biological reactor (MBR) process Download PDFInfo
- Publication number
- CN102020402A CN102020402A CN 201110000307 CN201110000307A CN102020402A CN 102020402 A CN102020402 A CN 102020402A CN 201110000307 CN201110000307 CN 201110000307 CN 201110000307 A CN201110000307 A CN 201110000307A CN 102020402 A CN102020402 A CN 102020402A
- Authority
- CN
- China
- Prior art keywords
- pond
- treatment method
- sewage
- mbr
- water treatment
- Prior art date
- 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.)
- Pending
Links
Images
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a sewage treatment method which comprises the following steps: treating sewage after pre-treatment through an anaerobic pond, an anoxic pond, an aerobic pond and a pre-anoxic pond, then enabling the sewage to enter a membrane biological reactor (MBR) membrane pond to be treated, and discharging the sewage. By adopting the sewage treatment method provided by the invention, by additionally arranging the pre-anoxic pond in the traditional A2O+MBR process flow and changing the refluxing pattern, carbon sources can be saved, blast aeration amount can be reduced, and energy consumption can be reduced by more than 10%.
Description
Technical field
The method that the present invention relates to dispose of sewage relates in particular to a kind of method of energy-saving MBR art breading sewage.
Background technology
In recent years, along with country improves the sewage disposal plant effluent water quality requirement, the research application of MBR film reaction technology in sewage disposal more and more comes into one's own and promotes.MBR (membrane biological reactor, membrane bioreactor) film reaction technology is a kind of water technology with secondary sedimentation basins and advanced treatment facility in membrane sepn process (between micro-filtration and ultrafiltration), the replacement traditional activated sludge process, compare with other traditional biological water technologies, the MBR film reaction technology has following principal feature:
One, can make the effluent quality high-quality stable; Because the aperture of film is between micro-filtration and ultrafiltration, its centrifugation stability and high efficiency, separating effect is much better than traditional settling tank, can stablize to obtain the fine effluent quality.
Two, can improve the biological treatment system concentration of activated sludge, compare with traditional settling tank isolation technique, the sludge concentration in MBR film reaction pond can improve 1.5～2 times, thereby reduces the volume of biological treatment system, saves civil engineering costs.
Three, floor space is little.This technical process is simple, compact construction, small accommodation area.
But the MBR film reaction technology also has the shortcoming of its application, and is comparatively expensive as equipment price; Control techniques is had relatively high expectations; Energy consumption is also bigger or the like.Wherein, because the MBR membrane reactor need take the blast aeration mode to come the controlling diaphragm surface contamination, and gas-water ratio (being the ratio between the sewage quantity of blast aeration amount and processing) is higher, generally in 10: 1～20: 1 (volume ratio) scopes, causes its energy consumption bigger thus.
Along with the strictness day by day that country requires sewage disposal plant effluent water-quality guideline (especially TN), the insufficient situation of sewage work's ubiquity carbon source.Because the gas-water ratio of MBR membrane cisterna itself is higher, the DO of its water outlet (dissolved oxygen in the water) may be up to more than 5～10mg/L, and this is favourable to improving the effluent quality index, but the DO that how to handle in the backflow mixed liquor then is worth scrutinizing.Adopt traditional technical process, up to the DO of 5～10mg/L, need more carbon source to clear up on the contrary in the not only not good good utilisation MBR membrane cisterna backflow mixed liquor, unfavorable to prevent it to follow-up dephosphorization denitrogenation, wasted the high-quality carbon source in the raw waste water.
Therefore, those skilled in the art is devoted to develop the method that a kind of energy consumption MBR membrane process lower, that save carbon source is disposed of sewage.
Summary of the invention
Because the above-mentioned defective of prior art, technical problem to be solved by this invention provides the method that a kind of energy consumption MBR membrane process lower, that save carbon source is disposed of sewage.
For achieving the above object, the invention provides a kind of sewage water treatment method, comprise step: pretreated sewage is handled by anaerobic pond, anoxic pond, Aerobic Pond, pre-anoxic pond, entered the MBR membrane cisterna then and handle the back water outlet.
In better embodiment of the present invention, the MBR membrane cisterna mixed solution that described MBR membrane cisterna produces branches to Aerobic Pond, described pre-anoxic pond produces mixed-liquor return to anaerobic pond, the DO of described pre-anoxic pond water outlet is lower than 0.5mg/L, blast air to described MBR membrane cisterna, blast air to described Aerobic Pond, the gas-water ratio in the described Aerobic Pond is 6: 1～7: 1 (volume ratio), the excess sludge that described MBR membrane cisterna produces is discharged, and air is blasted by gas blower.
Sewage water treatment method provided by the invention has the following advantages:
At first, MBR membrane cisterna mixed solution is back to Aerobic Pond earlier, can makes full use of the DO in the backflow mixed liquor, thereby reduce the blast aeration amount in the Aerobic Pond, reach purpose of energy saving.Adopt traditional method, the gas-water ratio in the Aerobic Pond be about 7: 1～10: 1, and adopt method provided by the invention, the gas-water ratio in the Aerobic Pond is 6: 1～7: 1.
Secondly, in the purpose of setting up pre-anoxic pond behind the Aerobic Pond is that DO with pre-anoxic pond water outlet is reduced to below the 0.5mg/L, so its mixed solution that is back to front end reduces greatly to the consumption of carbon source in the raw waste water, high-quality carbon source in the raw waste water can preferentially be used for dephosphorization denitrogenation, when saving carbon source, also saved the energy, otherwise may need additional carbon, cause energy dissipation.
By at traditional A
2Set up pre-anoxic pond in the O+MBR technical process and change reflux type, energy consumption was reduced more than 10% (comprise and save carbon source and reduce the blast aeration amount).
In the present invention, carbon source is meant organic substance, generally estimates its content with CODcr (chemical oxygen demand (COD)), BOD5 (biological oxygen demand).
In this technology, the effect in each pond is as follows:
Anaerobic pond: be in the sewage treatment structure (general DO is 0mg/L) under the anaerobic state, be mainly used in the Phosphorus material of removing in the biology;
Anoxic pond: be in sewage treatment structure (the general DO＜0.5mg/L), be mainly used in the nitrogen class material of removing in the sewage between anaerobism and the good oxygen condition;
Aerobic Pond: be in the sewage treatment structure (DO is generally about 1-2mg/L) under the oxygen condition, be mainly used in organic substance such as BOD, the ammonia nitrogen etc. removed in the sewage;
Pre-anoxic pond: be in the sewage treatment structure under anaerobism or the anoxic condition, be mainly used in the DO that removes in the water;
MBR membrane cisterna: the processing structures that membrane filter appts is installed.
Be described further below with reference to the technique effect of accompanying drawing, to understand purpose of the present invention, feature and effect fully design of the present invention, concrete structure and generation.
Description of drawings
Fig. 1 is the schema of traditional MBR art breading sewage.
Fig. 2 is the schema of a preferred embodiment of the present invention.
Embodiment
As shown in Figure 2, pretreated sewage is handled by anaerobic pond, anoxic pond, Aerobic Pond, pre-anoxic pond successively, enter the MBR membrane cisterna then and handle the back water outlet, the MBR membrane cisterna mixed-liquor return that the MBR membrane cisterna produces is to Aerobic Pond, pre-anoxic pond produces mixed-liquor return to anaerobic pond, blast air to Aerobic Pond, blast air to the MBR membrane cisterna.
Related data in the sewage treatment process sees Table 1.
Related data in table 1 sewage treatment process
In this programme, MBR membrane cisterna mixed solution is back to Aerobic Pond earlier, can makes full use of the DO in the backflow mixed liquor, the gas-water ratio in the Aerobic Pond is 6: 1～7: 1, can reduce the blast aeration amount in the Aerobic Pond; Behind Aerobic Pond, set up pre-anoxic pond, the DO of pre-anoxic pond water outlet can be reduced to below the 0.5mg/L, so its mixed solution that is back to front end reduces greatly to the consumption of carbon source in the raw waste water, high-quality carbon source in the raw waste water can preferentially be used for dephosphorization denitrogenation, has also saved the energy when saving carbon source.
More than describe preferred embodiment of the present invention in detail.The ordinary skill that should be appreciated that this area need not creative work and just can design according to the present invention make many modifications and variations.Therefore, all technician in the art all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (9)
1. a sewage water treatment method comprises step: pretreated sewage is handled by anaerobic pond, anoxic pond, Aerobic Pond, pre-anoxic pond, entered the MBR membrane cisterna then and handle the back water outlet.
2. sewage water treatment method as claimed in claim 1 is characterized in that: the MBR membrane cisterna mixed-liquor return that described MBR membrane cisterna produces is to Aerobic Pond.
3. sewage water treatment method as claimed in claim 1 is characterized in that: described pre-anoxic pond produces mixed-liquor return to anaerobic pond.
4. sewage water treatment method as claimed in claim 1 is characterized in that: the DO of described pre-anoxic pond water outlet is lower than 0.5mg/L.
5. sewage water treatment method as claimed in claim 1 is characterized in that: blast air to described MBR membrane cisterna.
6. sewage water treatment method as claimed in claim 1 is characterized in that: blast air to described Aerobic Pond.
7. as claim 5 or 6 described sewage water treatment methods, it is characterized in that: air is blasted by gas blower.
8. sewage water treatment method as claimed in claim 6 is characterized in that: the air water volume ratio in the described Aerobic Pond is 6: 1～7: 1.
9. as each described sewage water treatment method of claim 1-8, it is characterized in that: the excess sludge that described MBR membrane cisterna produces is discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110000307 CN102020402A (en) | 2011-01-04 | 2011-01-04 | Energy-saving sewage treatment method by membrane biological reactor (MBR) process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110000307 CN102020402A (en) | 2011-01-04 | 2011-01-04 | Energy-saving sewage treatment method by membrane biological reactor (MBR) process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102020402A true CN102020402A (en) | 2011-04-20 |
Family
ID=43862230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110000307 Pending CN102020402A (en) | 2011-01-04 | 2011-01-04 | Energy-saving sewage treatment method by membrane biological reactor (MBR) process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102020402A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358658A (en) * | 2011-07-01 | 2012-02-22 | 刘洪波 | Six-stage movable little-aeration membrane bio-reactor (MBR) and sewage treatment method thereof |
| CN102557343A (en) * | 2011-12-28 | 2012-07-11 | 广州市市政工程设计研究院 | Process and device for treating sewage through denitrification and dephosphorization by oxic-anaerobic-anoxic-oxic (OAAO) plus membrane bioreactor (MBR) process |
| CN102557342A (en) * | 2011-12-28 | 2012-07-11 | 广州市市政工程设计研究院 | Process and device for treating sewage through denitrification and dephosphorization by anaerobic-anoxic-oxic-anoxic (AAOA) plus membrane bioreactor (MBR) process |
| CN102642982A (en) * | 2012-04-19 | 2012-08-22 | 天津凯英科技发展有限公司 | System integrating sewage treatment with sludge concentration |
| CN103570195A (en) * | 2013-11-13 | 2014-02-12 | 江南大学 | Efficient aerobic treatment method for kitchen anaerobic wastewater |
| CN105174652A (en) * | 2015-10-13 | 2015-12-23 | 孟玲 | Battery waste liquid purification technology and battery waste liquid purification system |
| CN106186330A (en) * | 2016-08-30 | 2016-12-07 | 李纪勇 | The processing system of sewage and using method thereof |
| CN106277612A (en) * | 2016-08-30 | 2017-01-04 | 广德清源水处理设备有限公司 | Sewage purification system and operational approach thereof |
| CN108432685A (en) * | 2017-03-23 | 2018-08-24 | 江苏省农业科学院 | The water environment of high load capacity aquaculture regulates and controls and circulating water culture system |
| CN108483649A (en) * | 2018-05-15 | 2018-09-04 | 江苏凌志环保工程有限公司 | A kind of Orbal/MBR integrated reactors of processing Rural Waste Water |
| CN110304788A (en) * | 2019-06-06 | 2019-10-08 | 浙江九田环保科技有限公司 | A kind of MBR purification method handling life organic wastewater |
| CN110550827A (en) * | 2019-09-26 | 2019-12-10 | 湖南沃工环境科技有限公司 | Environment-friendly energy-saving domestic sewage treatment equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050063478A (en) * | 2003-12-22 | 2005-06-28 | 주식회사 포스코 | Advanced wastewater treatment apparatus by submerged membrane |
| CN101139154A (en) * | 2007-08-17 | 2008-03-12 | 北京碧水源科技股份有限公司 | Organic waste water processing method |
| CN101279794A (en) * | 2008-04-18 | 2008-10-08 | 清华大学 | Enhanced endogenous denitrification process and device for denitrification and phosphorus removal by using film-bioreactor |
| CN101928096A (en) * | 2009-12-28 | 2010-12-29 | 清华大学 | Sewage treatment method and system in ecological sensitive areas |
-
2011
- 2011-01-04 CN CN 201110000307 patent/CN102020402A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050063478A (en) * | 2003-12-22 | 2005-06-28 | 주식회사 포스코 | Advanced wastewater treatment apparatus by submerged membrane |
| CN101139154A (en) * | 2007-08-17 | 2008-03-12 | 北京碧水源科技股份有限公司 | Organic waste water processing method |
| CN101279794A (en) * | 2008-04-18 | 2008-10-08 | 清华大学 | Enhanced endogenous denitrification process and device for denitrification and phosphorus removal by using film-bioreactor |
| CN101928096A (en) * | 2009-12-28 | 2010-12-29 | 清华大学 | Sewage treatment method and system in ecological sensitive areas |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358658A (en) * | 2011-07-01 | 2012-02-22 | 刘洪波 | Six-stage movable little-aeration membrane bio-reactor (MBR) and sewage treatment method thereof |
| CN102358658B (en) * | 2011-07-01 | 2013-05-15 | 刘洪波 | Six-stage movable little-aeration membrane bio-reactor (MBR) and sewage treatment method thereof |
| CN102557343A (en) * | 2011-12-28 | 2012-07-11 | 广州市市政工程设计研究院 | Process and device for treating sewage through denitrification and dephosphorization by oxic-anaerobic-anoxic-oxic (OAAO) plus membrane bioreactor (MBR) process |
| CN102557342A (en) * | 2011-12-28 | 2012-07-11 | 广州市市政工程设计研究院 | Process and device for treating sewage through denitrification and dephosphorization by anaerobic-anoxic-oxic-anoxic (AAOA) plus membrane bioreactor (MBR) process |
| CN102557343B (en) * | 2011-12-28 | 2013-09-18 | 广州市市政工程设计研究院 | Process and device for treating sewage through denitrification and dephosphorization by oxic-anaerobic-anoxic-oxic (OAAO) plus membrane bioreactor (MBR) process |
| CN102642982A (en) * | 2012-04-19 | 2012-08-22 | 天津凯英科技发展有限公司 | System integrating sewage treatment with sludge concentration |
| CN103570195A (en) * | 2013-11-13 | 2014-02-12 | 江南大学 | Efficient aerobic treatment method for kitchen anaerobic wastewater |
| CN105174652A (en) * | 2015-10-13 | 2015-12-23 | 孟玲 | Battery waste liquid purification technology and battery waste liquid purification system |
| CN106186330A (en) * | 2016-08-30 | 2016-12-07 | 李纪勇 | The processing system of sewage and using method thereof |
| CN106277612A (en) * | 2016-08-30 | 2017-01-04 | 广德清源水处理设备有限公司 | Sewage purification system and operational approach thereof |
| CN108432685A (en) * | 2017-03-23 | 2018-08-24 | 江苏省农业科学院 | The water environment of high load capacity aquaculture regulates and controls and circulating water culture system |
| CN108432685B (en) * | 2017-03-23 | 2021-06-18 | 江苏省农业科学院 | Water environment regulation and control and recirculating aquaculture system for high-load aquaculture |
| CN108483649A (en) * | 2018-05-15 | 2018-09-04 | 江苏凌志环保工程有限公司 | A kind of Orbal/MBR integrated reactors of processing Rural Waste Water |
| CN110304788A (en) * | 2019-06-06 | 2019-10-08 | 浙江九田环保科技有限公司 | A kind of MBR purification method handling life organic wastewater |
| CN110550827A (en) * | 2019-09-26 | 2019-12-10 | 湖南沃工环境科技有限公司 | Environment-friendly energy-saving domestic sewage treatment equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102020402A (en) | Energy-saving sewage treatment method by membrane biological reactor (MBR) process | |
| US8894855B2 (en) | Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods | |
| CN103819049B (en) | A kind of sewage water treatment method and system | |
| CN101353203B (en) | Short-cut denitrification synchronous denitrifying phosphorus removal process and apparatus | |
| CN101234836B (en) | Garbage percolate treatment technique | |
| CN102531298B (en) | Sewage treatment device and method for enhanced denitrification A/A/O (Anodic Aluminum Oxide) and deoxygenation BAF (Biological Aerated Filter) | |
| CN102001784B (en) | High efficiency low energy consumption urban sewage dephosphorization denitrification treatment method | |
| CN102225825B (en) | Zero-energy-consumption enhanced AB (adsorption-biodegradation) treatment method for urban sewage | |
| CN101244880B (en) | Advanced treatment method for garbage percolate | |
| US10131550B2 (en) | Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle | |
| CN101125721A (en) | Technique for reusing sewage | |
| CN106430565B (en) | It is a kind of directly converted based on carbon source, the sewage low consumption processing of nitrogen biological eliminating and energy recovery combined treatment process | |
| CN103739173A (en) | Kitchen wastewater treatment method | |
| CN101935136A (en) | Zero energy consumption low sludge yield municipal sewage dephosphorization and denitrification treatment method | |
| CN104860487A (en) | Sewage treating method adopting A-A-O treating technology without total nitrogen removing by additional carbon source | |
| CN102295346A (en) | Adjustable biochemical tank and adjustable AAO process for water treatment | |
| CN204079721U (en) | A kind of sewage disposal device adopting pure oxygen aeration and remaining oxygen reuse | |
| CN203999260U (en) | A kind of synchronous denitrification dephosphorizing film bioreactor device | |
| CN103641268B (en) | Two-stage biological reactor for treatment percolate instrument and supplies | |
| CN104108828A (en) | AAO-MBR process and apparatus for synchronously removing nitrogen and phosphorus | |
| CN201722254U (en) | Double sludge denitrifying and dephosphorizing treatment system | |
| CN203295318U (en) | Integrated denitrifying and dephosphorizing MBR device | |
| CN202346870U (en) | Domestic sewage treatment device | |
| CN203582648U (en) | Composite SBR-MBR (Sequencing Batch Reactor-Membrane Bioreactor) sewage treatment device | |
| CN105523691A (en) | High-nitrogen-content organic wastewater deep-denitrification process and device therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110420 |