CN101318738A - Membrane filtration separation method for wastewater treatment and equipment thereof - Google Patents
Membrane filtration separation method for wastewater treatment and equipment thereof Download PDFInfo
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- CN101318738A CN101318738A CNA2008101328874A CN200810132887A CN101318738A CN 101318738 A CN101318738 A CN 101318738A CN A2008101328874 A CNA2008101328874 A CN A2008101328874A CN 200810132887 A CN200810132887 A CN 200810132887A CN 101318738 A CN101318738 A CN 101318738A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention provides sewage treatment membrane filtration separation equipment, which comprises a membrane separation pool, wherein the membrane separation pool is provided with a built-in membrane module, and is also integrated with a membrane system charging pump, a sludge reflux pump system, a membrane module aeration pipe and a water-producing pipe matching device. Moreover, the sewage treatment membrane filtration separation equipment can also be connected with an online cleaning pipe. According to engineering requirements, the membrane separation pool, the built-in membrane module, the membrane system charging pump, the sludge reflux pump system, the membrane module aeration pipe and the water-producing pipe matching device are in concentrated arrangement or integrated inside a single module.
Description
Technical field
The present invention is the exploitation of sewage disposal new membrane bio-reactor, belongs to technical field of sewage.
Technical background
Along with the development of membrane technology, increasing membrane filtration technique is applied to sewage treatment area.Conventional membrane for water treatment technology comprises microfiltration membrane (MF), ultra-filtration membrane (UF), nanofiltration membrane (NF) and reverse osmosis membrane technology such as (RO), the development of membrane technique at first is constantly to grow up on the basis of satisfying people's drinking water treatment, but the critical shortage of and water resources serious day by day, membrane technique along with environmental pollution in waste water control and reuse as a practical technique.Membrane process is usually used in the advanced treatment after the second-stage treatment, how substitutes pre-treatment such as the precipitation of conventional depth in handling, filtration, absorption, degerming with micro-filtration (MF), ultrafiltration (UF).Carry out water softening and desalination with nanofiltration (NF), reverse osmosis (RO).
Membrane bioreactor (MBR) system that develops on MF and UF basis at present has been widely used in biochemical terminal mud-water separation process, utilize the crown_interception of film to make microorganism be trapped within the bio-reactor fully, realize separating fully of hydraulic detention time and sludge age, make the sludge concentration in the biochemical reactor bring up to 10~20g/L from 3~5g/L, thereby improved the volumetric loading of reactor, reactor volume is reduced.The prolongation of sludge age, long nitrococcus and nitrifier is retained in the reactor to help from generation to generation the phase, and it is more nitrated that ammonia nitrogen is obtained, and realizes biological denitrificaion by denitrification process again.
Membrane bioreactor (MBR) technology is at first removed easily biodegradable organics and ammonia nitrogen by efficient biological process, filter hardly degraded organic substance by membrane technique then, simultaneously, allow salt by taking, both utilize biological treatment and membrane technique advantage separately, avoided the shortcoming of simple reverse osmosis again.
The exploitation of cross-current type membrane technique, particularly mould material and film product constantly develop, and the decline significantly of film price in recent years, and MBR technology is developed rapidly in the application of wastewater treatment.MBR and combination process thereof have been obtained widespread use and effect preferably in oozing drop liquid treatment project.
The principal feature of MBR and combination process thereof:
Effective degraded principal pollutant COD, BOD and ammonia nitrogen;
Effluent quality is good, no bacterium and solid substance;
Microorganism concn height in the reactor, anti impulsion load;
Because larger molecular organics is trapped within the reactor, can obtain the longer time that contacts with microorganism, help the cultivation of nitrifier, nitrococcus and obligate degraded microorganism;
Reactor moves under age at high volumetric loading, low sludge loading, long mud, and surplus sludge volume is little.
Membrane bioreactor mainly is made of solid-liquid separation film system and bio-reactor two portions.A large amount of microorganism (active sludge) fully contacts with matrix (labile organic compound in the waste water etc.) in bio-reactor, carries out metabolism by oxygenolysis and grows, breeds to keep self, makes organic pollutant degradation simultaneously.Membrane module carries out solid-liquid separation to waste water and mud mixed liquid.Return bio-reactor after mud is concentrated, thereby avoided the loss of microorganism.Membrane module is equivalent to the second pond of traditional technology, but has overcome a lot of shortcomings of traditional second pond, can more effective separation waste water and mud, and stable effluent quality.
Usually the solid-liquid separation film device in the membrane bioreactor that adopts has two kinds of built-in membrane filtration and separation equipment and external membrane filtering separation devices.Built-in membrane filtration and separation equipment generally adopts the submerged membrane assembly, being about to membrane module directly inserts in the reaction tank, adopt modes such as negative pressure-pumping or flow by gravity, make the liquid in the reaction tank see through the solid-liquid separation film, and solid (comprising active sludge) is trapped within the reaction tank; The external membrane filtering separation device generally adopts the complete membrane filtration system of external placed type, utilizes fluid machinery such as water pump that the mixed solution in the reaction tank is conveyed in the film system, and by the filtration sieving action of film, liquid sees through the product water side water outlet of film from system.General external membrane filtering separation device adopts the cross-current type operation scheme, needs bigger circular flow.
The operation logic of built-in membrane filtration and separation equipment is simple, ability consumption is very little, and floor space is little, but because membrane module is directly installed in the reaction tank, clean and the attended operation inconvenience, when the object water quality of handling is relatively poor, regularly need off-line to clean, off-line needs the mechanical means lifting when cleaning, and independent film service sink need be set, and security and operability are all not satisfactory; The external membrane filtering separation device is convenient to maintenance and operation because be cellular system independently, and the water quality of water outlet is also comparatively stable relatively, but power consumption is big, investment and operation expense height.
Summary of the invention
The present invention is according to the structure and the operation scheme of the membrane filtration and separation equipment in the existing membrane bioreactor, rule of thumb data in conjunction with production test, built-in membrane filtration and separation equipment and external membrane filtering separation device are organically combined, form novel modularization membrane separation plant, the convenience of the attended operation of external placed type and built-in less energy-consumption advantage are combined fully.
The invention provides sewage disposal membrane filtration and separation equipment as shown in Figure 2, it comprises the membrane sepn pond, the built-in built-in membrane module in membrane sepn pond, and also integrated film system feeding pump, sludge reflux pump system, membrane module aeration tube and the supporting device of water producing pipe.Described sewage disposal membrane filtration and separation equipment can also be connected to the on-line cleaning pipe.According to requirement of engineering, device that can described membrane sepn pond, built-in membrane module, film system feeding pump, sludge reflux pump system, membrane module aeration tube and water producing pipe is supporting is concentrated and is provided with or is integrated in the single module.
Sewage disposal membrane filtration and separation equipment of the present invention can be applicable to the engineering application in fields such as the sewage disposal of various water quality, different treatment scale, middle water reuse.
On the other hand, the present invention also provides with sewage disposal membrane filtration and separation equipment of the present invention and has carried out the isolating method of sewage disposal membrane filtration.
Description of drawings
Fig. 1 is conventional membrane filtration and separation equipment figure
Fig. 2 is United-MBR membrane filtration and separation equipment figure
Embodiment
The United-MBR membrane filtration and separation equipment is to set up on the technology and application foundation of conventional membrane filtration and separation equipment, through the modular technology of organic combination and pilot development formation.
Described United-MBR membrane filtration and separation equipment adopts special-purpose membrane sepn pond, its built-in built-in film (tubular fibre curtain type membrane or flat film) assembly, systems such as system integration film system feeding pump, sludge reflux pump, the supporting equipment of membrane module aeration tube and water producing pipe can be concentrated according to project scale and be provided with or be integrated in the single module.Square pond type is adopted in the membrane sepn pond, around the pool wall fastening piece interface and pipe joint is set, and is convenient to many ponds and merges connection.
The module of new membrane filtering separation system can be made in advance, and on-the-spot installation workload is less.
During the membrane filtration and separation equipment operation, operation by automatic controlling system water pump and blower fan and stopping, and the automatic recoil cleaning and the matting of the parameter controlling diaphragm that passes through the numerical value of instrument and preset, and can realize the zero manual operation off-line matting that general built-in film device is not realized.And, do not influence the continuity of the normal operation and the membrane filtration system water outlet of biochemical treatment system because the modularization setting can realize single off-line matting of overlapping film device.And the negative pressure-pumping that adopts and the mode of gravity water outlet greatly reduce operation energy consumption.
Claims (9)
1. a sewage disposal membrane filtration and separation equipment is characterized in that comprising the membrane sepn pond, the built-in built-in membrane module in membrane sepn pond, described equipment is also integrated film system feeding pump, sludge reflux pump system, membrane module aeration tube and the supporting device of water producing pipe.
2. the sewage disposal membrane filtration and separation equipment of claim 1 is characterized in that described sewage disposal membrane filtration and separation equipment also is connected to the on-line cleaning pipe.
3. the sewage disposal membrane filtration and separation equipment of claim 1, wherein that described membrane sepn pond, built-in membrane module, film system feeding pump, sludge reflux pump system, membrane module aeration tube and water producing pipe is supporting device are concentrated and are provided with or are integrated in the single module.
4. each sewage disposal membrane filtration and separation equipment of claim 1 to 3, wherein square pond type is adopted in the membrane sepn pond, around the pool wall fastening piece interface and pipe joint is set, and is convenient to many ponds and merges and connect.
5. each sewage disposal membrane filtration and separation equipment of claim 1 to 3, wherein built-in film is tubular fibre curtain type membrane or flat film.
6. each the application of sewage disposal membrane filtration and separation equipment in various sewage treatment projects that need to use membrane bioreactors of claim 1 to 3.
7. membrane filtration separation method for wastewater treatment is characterized in that application rights requires 1 to 3 each sewage disposal membrane filtration and separation equipment that sewage is handled.
8. the membrane filtration separation method for wastewater treatment of claim 7, when wherein membrane filtration and separation equipment moves, operation by automatic controlling system water pump and blower fan and stopping, and the automatic recoil cleaning and the matting of the parameter controlling diaphragm that passes through the numerical value of instrument and preset realize zero manual operation off-line matting.
9. the membrane filtration separation method for wastewater treatment of claim 7 wherein adopts the mode of negative pressure-pumping and gravity water outlet, thereby has reduced operation energy consumption.
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CNA2008101328874A CN101318738A (en) | 2008-07-15 | 2008-07-15 | Membrane filtration separation method for wastewater treatment and equipment thereof |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101934200A (en) * | 2009-12-24 | 2011-01-05 | 北京碧水源科技股份有限公司 | Method for cleaning hollow fiber membrane |
CN101973673A (en) * | 2010-10-18 | 2011-02-16 | 北京坎普尔环保技术有限公司 | Sewage treatment device with aerobic and anoxia reaction regions and film solid-liquid separation region |
CN102145963A (en) * | 2011-03-01 | 2011-08-10 | 江门市创源水处理科技有限公司 | Efficient sewage treatment device and technology using same |
CN102372392A (en) * | 2010-08-16 | 2012-03-14 | 何少林 | Built-in membrane symbiosis reactor |
CN102718287A (en) * | 2012-07-17 | 2012-10-10 | 中国石油化工股份有限公司 | Low-energy-consumption precise-treatment process for oily sewage of oil field |
CN105561791A (en) * | 2014-11-07 | 2016-05-11 | 百富环保科技有限公司 | Ultrafiltration membrane filter cartridge, ultrafiltration membrane filter device and ultrafiltration membrane filter system |
CN107792938A (en) * | 2016-09-05 | 2018-03-13 | 中国石油天然气股份有限公司 | System and method for treating petrochemical wastewater by combining phycobiont and external membrane filtration |
CN108114605A (en) * | 2016-11-30 | 2018-06-05 | 斗山重工业建设有限公司 | Membrane filtration system |
-
2008
- 2008-07-15 CN CNA2008101328874A patent/CN101318738A/en active Pending
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101934200A (en) * | 2009-12-24 | 2011-01-05 | 北京碧水源科技股份有限公司 | Method for cleaning hollow fiber membrane |
CN101934200B (en) * | 2009-12-24 | 2012-06-27 | 北京碧水源科技股份有限公司 | Method for cleaning hollow fiber membrane |
CN102372392A (en) * | 2010-08-16 | 2012-03-14 | 何少林 | Built-in membrane symbiosis reactor |
CN101973673A (en) * | 2010-10-18 | 2011-02-16 | 北京坎普尔环保技术有限公司 | Sewage treatment device with aerobic and anoxia reaction regions and film solid-liquid separation region |
CN102145963A (en) * | 2011-03-01 | 2011-08-10 | 江门市创源水处理科技有限公司 | Efficient sewage treatment device and technology using same |
CN102145963B (en) * | 2011-03-01 | 2012-06-27 | 江门市创源水处理科技有限公司 | Efficient sewage treatment device and technology using same |
CN102718287A (en) * | 2012-07-17 | 2012-10-10 | 中国石油化工股份有限公司 | Low-energy-consumption precise-treatment process for oily sewage of oil field |
CN105561791A (en) * | 2014-11-07 | 2016-05-11 | 百富环保科技有限公司 | Ultrafiltration membrane filter cartridge, ultrafiltration membrane filter device and ultrafiltration membrane filter system |
CN107792938A (en) * | 2016-09-05 | 2018-03-13 | 中国石油天然气股份有限公司 | System and method for treating petrochemical wastewater by combining phycobiont and external membrane filtration |
CN108114605A (en) * | 2016-11-30 | 2018-06-05 | 斗山重工业建设有限公司 | Membrane filtration system |
CN108114605B (en) * | 2016-11-30 | 2021-03-16 | 斗山重工业建设有限公司 | Membrane filtration system |
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