CN202968319U - Multistage-filtering membrane bioreactor - Google Patents
Multistage-filtering membrane bioreactor Download PDFInfo
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- CN202968319U CN202968319U CN 201220674003 CN201220674003U CN202968319U CN 202968319 U CN202968319 U CN 202968319U CN 201220674003 CN201220674003 CN 201220674003 CN 201220674003 U CN201220674003 U CN 201220674003U CN 202968319 U CN202968319 U CN 202968319U
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- filtering
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- membrane
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- Biological Treatment Of Waste Water (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a multistage-filtering membrane bioreactor, belonging to sewage treatment equipment. The multistage-filtering membrane bioreactor comprises a filter, wherein a water inlet is arranged at one end of the filter, a water outlet is arranged at the other end of the filter, the filter is internally divided into three chambers by baffles, the three chambers are communicated in sequence and include a large particle filtering oxidization chamber, a small particle filtering oxidization chamber and a membrane separation chamber sequentially from the water inlet end to the water outlet end, large-particle filtering materials are placed in the large particle filtering oxidization chamber, small-particle filtering materials are placed in the small particle filtering oxidization chamber and a filtering membrane assembly is arranged in the membrane separation chamber; aeration pipes are respectively arranged at the bottoms of the three chambers and are respectively connected with an air blower through pipes provided with valves; and sewage is subjected to filtering oxidization action through large-particle size filtering material pebbles and then flows through small-particle size filtering material light ceramic particles for further filtering and oxidization, and finally is subjected to deep filtering through a water filtering membrane assembly. The multistage-filtering membrane bioreactor has the advantages of conducting multistage step-by-step filtering according to the characteristic of pollutants, reducing the risk of the membrane pollution, and improving the filtering effect.
Description
Technical field
The utility model relates to a kind of membrane bioreactor of cascade filtration, belongs to sewage disposal device.
Technical background
Membrane-biotechnology is in recent years in the most active subject study of sewage treatment area.Compare with common process, membrane bioreactor has following advantage: 1. contaminant removal efficiency is high, and effluent quality is good.2. sludge concentration is high, and reactor volume is little, takes up an area few.3. processing parameter is easy to control.4. compact construction, be easy to realize integrated control.The particularly fast development of organic polymer science over nearly 20 years makes membrane biological reactor process obtain more application in municipal effluent and Industrial Wastewater Treatment field.
Research and the application of membrane bioreactor in sewage disposal relates to numerous subjects such as biology, hydromechanics, materialogy, economics and engineering science, membrane technique will become people from now on and control water and pollute and solve sewage or with one of important means of problem under the intersection of each related discipline drives.But have a fundamental issue in membrane bioreactor, film is easy to be polluted when filtering, and causes the capacity of decomposition of film to descend, and even is difficult to carry out, and reduces the work-ing life of film.And membrane sepn is a simple physical treatment course, can not realize coming organic pollutant in degradation water with microorganism.
Summary of the invention
Based on the problem that membrane bioreactor exists film to pollute, pollute in order to effectively reduce film, keep the filtration capacity of film, improve the work-ing life of film.The utility model provides a kind of membrane bioreactor of cascade filtration.
The utility model is realized with following technical scheme, a kind of membrane bioreactor of cascade filtration, comprise the filter tank, one end in filter tank is provided with water-in, the other end is provided with water outlet, be isolated into dividing plate three chambers that are communicated with successively in the filter tank, be followed successively by from feed-water end to water side: macrobead filters oxidizing chamber, small-particle and filters oxidizing chamber, membrane sepn chamber, filter in oxidizing chamber at macrobead and be placed with the macrobead filtrate, be placed with the small-particle filtrate in small-particle filters oxidizing chamber, in the membrane sepn chamber, filter membrane component arranged.Filter at macrobead the bottom that oxidizing chamber, small-particle filter oxidizing chamber, membrane sepn chamber and be equiped with respectively aeration tube, aeration tube is connected with gas blower by valvular pipeline is installed respectively.
Its principle is: the sewage that enters is at first through excessive particle diameter media filtration and oxidation, and this chamber is the large granular impurity in trap water effectively, has carried out the preliminary filtration of sewage, and has realized preliminary oxidation.Then water flows into small-particle media filtration oxidizing chamber, by the filteration of small particle size filtrate, can filter than the impurity of small particle size with cause turbidity material and microorganism etc., the impurity in water is further reduced, and realizes biological oxidation process preferably.Last water carries out depth type filtration by the filter membrane component separate chamber and holds back all kinds of particulate matters in sewage, thereby realizes the whole process of filtration.Because carrying out for two steps before separating by filter membrane component filters, there is a large amount of impurity to be trapped, can not contact with the membrane module in the 3rd filter tank, so can reach risk and raising mould work-ing life and the running cost that effective reduction filter membrane pollutes.
The beneficial effects of the utility model are that this membrane bioreactor substep multistage according to the characteristics of pollutent filters, and reduced the film Pollution risk, improved the filter effect of reactor; Be conducive to improve the biopurification effect.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated
Fig. 1 is structural representation of the present utility model.
In figure: 1. filter tank, 2. macrobead filters oxidizing chamber, and 2.1, large particle diameter filtrate, 3. small-particle filters oxidizing chamber, and 3.1, the small particle size filtrate, 4. membrane sepn chamber, 4.1 filter membrane components, 5. aeration tube, 6. suction pump, 7. valve, 8. gas blower.
Embodiment
As shown in Figure 1, the membrane bioreactor of cascade filtration has filter tank 1, and an end of 1 is provided with water-in in the filter tank, and the sewage shown in arrow enters the filter tank from water-in; The other end is provided with water outlet, and treated water is extracted out through suction pump 6 from water outlet.Be isolated into dividing plate three chambers that are communicated with successively in filter tank 1, be followed successively by from feed-water end to water side: macrobead filters oxidizing chamber 2, small-particle and filters oxidizing chamber 3, membrane sepn chamber 4, filter in oxidizing chamber 2 at macrobead and be placed with macrobead filtrate 2.1, be placed with small-particle filtrate 3.1 in small-particle filters oxidizing chamber 3, in membrane sepn chamber 4, filter membrane component 4.1 arranged; Filter at macrobead the bottom that oxidizing chamber 2, small-particle filter oxidizing chamber 3, membrane sepn chamber 4 and be equiped with respectively aeration tube 5, aeration tube 5 is connected with gas blower 8 by the pipeline that valve 7 is installed respectively, supplies gas to the water aeration in the filter tank in the filter tank.
The present embodiment macrobead filtrate 2.1 is particle diameter 8-10mm pebbles.Small-particle filtrate 3.1 is particle diameter 1-2mm light ceramic.
At first sewage occur to filter oxygenizement by large particle diameter filtrate pebbles, then flows through small particle size filtrate light ceramic and further filter oxidation, and last current filter membrane component carries out depth type filtration.Three chambers only need configure a gas blower, and at each chamber lower disposed aeration tube, then regulate aeration rate in the water by valve separately, and the clear water after filtering at last is transported in next step technical process by suction pump.
Claims (3)
1. the membrane bioreactor of a cascade filtration, comprise filter tank (1), one end in filter tank (1) is provided with water-in, the other end is provided with water outlet, it is characterized in that being isolated into dividing plate three chambers that are communicated with successively in the filter tank, be followed successively by from feed-water end to water side: macrobead filters oxidizing chamber (2), small-particle filters oxidizing chamber (3), membrane sepn chamber (4), filter in oxidizing chamber (2) at macrobead and be placed with macrobead filtrate (2.1), filter in oxidizing chamber (3) at small-particle and be placed with small-particle filtrate (3.1), filter membrane component (4.1) is arranged in membrane sepn chamber (4), the bottom of filtering oxidizing chamber (2), small-particle filtration oxidizing chamber (3), membrane sepn chamber (4) at macrobead is equiped with respectively aeration tube (5), and aeration tube (5) is connected with gas blower (8) by the pipeline that valve (7) is installed respectively.
2. the membrane bioreactor of a kind of cascade filtration according to claim 1, is characterized in that described macrobead filtrate (2.1) is particle diameter 8-10mm pebbles.
3. the membrane bioreactor of a kind of cascade filtration according to claim 1, is characterized in that described small-particle filtrate (3.1) is particle diameter 1-2mm light ceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220674003 CN202968319U (en) | 2012-12-07 | 2012-12-07 | Multistage-filtering membrane bioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220674003 CN202968319U (en) | 2012-12-07 | 2012-12-07 | Multistage-filtering membrane bioreactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202968319U true CN202968319U (en) | 2013-06-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220674003 Expired - Fee Related CN202968319U (en) | 2012-12-07 | 2012-12-07 | Multistage-filtering membrane bioreactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202968319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319055A (en) * | 2013-07-17 | 2013-09-25 | 环境保护部南京环境科学研究所 | Processing device for removing phenol and naphthalene in sewage and method thereof |
-
2012
- 2012-12-07 CN CN 201220674003 patent/CN202968319U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319055A (en) * | 2013-07-17 | 2013-09-25 | 环境保护部南京环境科学研究所 | Processing device for removing phenol and naphthalene in sewage and method thereof |
| CN103319055B (en) * | 2013-07-17 | 2014-11-05 | 环境保护部南京环境科学研究所 | Processing device for removing phenol and naphthalene in sewage and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131207 |