CN202529908U - Organism-attached membrane bioreactor - Google Patents
Organism-attached membrane bioreactor Download PDFInfo
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- CN202529908U CN202529908U CN 201220162279 CN201220162279U CN202529908U CN 202529908 U CN202529908 U CN 202529908U CN 201220162279 CN201220162279 CN 201220162279 CN 201220162279 U CN201220162279 U CN 201220162279U CN 202529908 U CN202529908 U CN 202529908U
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Abstract
The utility model relates to an organism-attached membrane bioreactor which is used for sewage and waste water treatment. The organism-attached membrane bioreactor consists of a membrane biological reaction zone (5), an anaerobic zone (1), a suspension organism aerobic zone (2), an anaerobic acidizing zone (3) and an organism attaching zone (4), wherein the anaerobic zone (1), the suspension organism aerobic zone (2), the anaerobic acidizing zone (3) and the organism attaching zone (4) are connected with the membrane biological reaction zone (5) sequentially so as to form the organism-attached membrane bioreactor. A biochemical pretreatment unit is utilized, and by the aid of the anaerobic zone, the suspension organism aerobic zone, the anaerobic acidizing zone and the organism attaching zone biodegradable, pollutants can be removed to the utmost extent with low running cost, and treatment load of the membrane bioreactor (MBR) is lowered. Suspension particles with diameter larger than 1 micrometer can be adsorbed and filtered by the organism attaching zone, so that membrane fouling is reduced while membrane flux is increased.
Description
Technical field
The utility model relates to a kind of bio-reactor that traditional biological pre-treatment process is combined with membrane separation technique of dirt, waste water, refers in particular to be used for municipal sewage treatment, sanitary sewage disposal; Middle water Treatment for Reuse; The biological attachment type membrane bioreactor that high concentrated organic wastewater is handled.
Background technology
Traditional activated sludge process (Conventional Activated Sludge; CAS) be widely used in the various dirty wastewater treatments; Owing to adopt the gravity type boat davit coprecipitation mode as solid-liquid separation means, therefore brought the problem of a lot of aspects, constant like solid-liquid separation efficiency; The treatment unit volumetric loading is low, and floor space is big, effluent quality is unstable, oxygen transfer efficiency is low, energy consumption is high and excess sludge production is big etc.Water quality after the traditional biological treatment process is handled is difficult to satisfy more and more stricter dirty wastewater discharge standard, and simultaneously, the worsening shortages of the water resources that expanding economy brings is the suitable sewage recycling technology of an urgent demand exploitation also, to alleviate the imbalance between supply and demand of water resources.Therefore, a kind of novel water technology---(Membrane Bioreactor's membrane bioreactor MBR) arises at the historic moment.Along with continually developing of membrane separation technique and product, MBR also has more practical value, and in this year, China has dropped into a large amount of funds and has been used to develop this new and high technology.
MBR is meant a kind of new sewage and waste water treatment device that ultra, microfiltration membrane stripping technique and bio-reactor in the WWT are combined and form.This reactor drum combines the advantage that membrane technology and biologic treating technique bring.Ultra, micro-filtration membrane module can replace second pond fully as the mud-water separation unit.Ultra, microfiltration membrane is held back in the active sludge intermixture mikrobe flco and than larger molecular organics; Make it to rest in the reactor drum; Make to obtain high biological concentration in the reactor drum, and prolong the organic solid residence time, greatly improved mikrobe organic oxidation ratio.Simultaneously, after ultra, microfiltration membrane were handled, effluent characteristics was high, directly water reuse in the conduct.Excess sludge that system arranges is few, and has higher impact resistance.Because MBR is a new technology, the time of using at home is not long, along with research and going deep into of using, the domestic MBR instance that has had, all in various degree have shortcomings such as film is seriously polluted, water flux is low, energy consumption height, limited technological the applying of MBR.
Traditional viewpoint thinks that film unit is the main part of technology, and the biochemical pre-treatment before the film only is to guarantee that film is the least possible contaminated.And in fact when technological design moves; Many is again simultaneously the target contaminant that technology is removed to the bigger pollutent of film pollution contribution; So the biochemical preprocessing part of film also should assign to consider as main part, provides the device with film processing biochemical pretreatment unit before significant.
Summary of the invention
The technical problem that the utility model will solve is, improves to the shortcoming that exists in the above-mentioned prior art, provides a kind of reduction film to pollute, and improves membrane flux; Effluent quality is good, and floor space is little, and energy consumption is low, saves a kind of biological attachment type membrane bioreactor (MAMBR) of running cost.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is:
A kind of biological attachment type membrane bioreactor (MAMBR) comprises the membrane biological reaction district, is connected to form successively by anaerobic zone, suspended biological aerobic zone, anoxic acidifying district, biological attachment district and membrane biological reaction district;
Said anaerobic zone top is provided with inlet channel, and the bottom is provided with the diving impeller; Inside is provided with combined stuffing; Sidewall is provided with mud return line a;
The bottom of said suspended biological aerobic zone is provided with aerating apparatus;
The bottom in said anoxic acidifying district is provided with air stirring pipe; Inside is provided with elastic filler; Sidewall is provided with mud return line c and sewage backflow pipe a;
The sidewall in said biological attachment district is provided with sewage backflow pipe b; The bottom is provided with aerating apparatus; Inside is provided with filter cloth formula filler;
The sidewall in said membrane biological reaction district is provided with mud return line b; Top side wall is provided with suction pump; Sidewall bottom excess sludge discharge pipe; The bottom is provided with aerating apparatus and intermittent type gas washing pipe road; Inside is provided with hollow fiber film assembly;
The mud return line b in membrane biological reaction district is communicated with the mud return line a of anaerobic zone and the mud return line c in anoxic acidifying district through sludge reflux pump, and the sewage backflow pipe b in biological attachment district is communicated with the sewage backflow pipe a in anoxic acidifying district through the sewage backflow pump;
Wherein, Be provided with water inlet pipe and board-like ultra-fine grid before the anaerobic zone, the bottom of the top of the bottom of anaerobic zone and the shared pool wall of suspended biological aerobic zone, the shared pool wall of suspended biological aerobic zone and anoxic acidifying district, the top of the shared pool wall in anoxic acidifying district and biological attachment district, the shared pool wall in biological attachment district and membrane biological reaction district has hole.
Said aerating apparatus is made up of aerated conduit and aerator.
Compared with prior art, the beneficial effect of the utility model is:
1, the utility model adopts biochemical pretreatment unit; Promptly through anaerobic zone, suspended biological aerobic zone, anoxic acidifying district, biological attachment district; Realize the maximum of biodegradable pollutent is removed with lower running cost, reduce the processing load of membrane bioreactor (MBR); And realize the suspended particle greater than 1 μ m is adsorbed and filters through the biological attachment district, pollute the raising membrane flux to reduce film.
2, the utility model is back to anaerobic zone and anoxic acidifying district with membrane biological reaction district (MBR) bed mud, so that the mud acidifying, clear up, realizes sludge reduction, with sewage backflow to the oxygen-starved area in biological attachment district to improve denitrification effect.
3, the device of the utility model is used for municipal sewage treatment, sanitary sewage disposal ability reinforced phosphor-removing denitrifying function; Be used for the water Treatment for Reuse high-quality reuse water can be provided; Be used for high concentrated organic wastewater and handle, can more effectively remove hard-degraded substance and ammonia nitrogen, further improve treatment effect.
Description of drawings
Fig. 1 is the two dimensional structure synoptic diagram of the utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
In the drawings
The 1-anaerobic zone; 2-suspended biological aerobic zone; 3-anoxic acidifying district; 4-biological attachment district (MA); 5-membrane biological reaction district (MBR); The 6-suction pump; 7-mud return line b; 8-sewage backflow pipe c (being back to anoxic acidifying district) from membrane biological reaction district MBR bed mud; 9-mud return line a (being back to anaerobic zone) from membrane biological reaction district MBR bed mud; The 10-impeller of diving under water; The 11-aerating apparatus; The 12-air stirring pipe; 13-intermittent type gas washing pipe road; The 14-combined stuffing; The 15-elastic filler; 16-filter cloth formula filler; The 17-hollow fiber film assembly; The 18-inlet channel; The board-like ultra-fine grid of 19-; The 20-water inlet pipe; 21-excess sludge discharge pipe; 22-sewage backflow pipe b; 23-sewage backflow pump; The 24-sludge reflux pump; The 25-hole; 26-sewage backflow pipe a (being back to anoxic acidifying district) from MA top, biological attachment district.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further to set forth.
Can know that by Fig. 1 and Fig. 2 a kind of biological attachment type membrane bioreactor (MAMBR) comprises membrane biological reaction district 5, connect to form successively by anaerobic zone 1, suspended biological aerobic zone 2, anoxic acidifying district 3, biological attachment district 4 and membrane biological reaction district 5;
Said anaerobic zone 1 top is provided with inlet channel 18, and the bottom is provided with diving impeller 10; Inside is provided with combined stuffing 14; Sidewall is provided with mud return line a 9;
The bottom of said suspended biological aerobic zone 2 is provided with aerating apparatus 11;
The bottom in said anoxic acidifying district 3 is provided with air stirring pipe 12; Inside is provided with elastic filler 15; Sidewall is provided with mud return line c 8 and sewage backflow pipe a 26;
The sidewall in said biological attachment district 4 is provided with sewage backflow pipe b 22; The bottom is provided with aerating apparatus 11; Inside is provided with filter cloth formula filler 16;
The sidewall in said membrane biological reaction district 5 is provided with mud return line b 7; Top side wall is provided with suction pump 6; Sidewall bottom excess sludge discharge pipe 21; The bottom is provided with aerating apparatus 11 and intermittent type gas washing pipe road 13; Inside is provided with hollow fiber film assembly 17;
The mud return line b 7 in membrane biological reaction district 5 is communicated with the mud return line a 9 of anaerobic zone 1 and the mud return line c 8 in anoxic acidifying district 3 through sludge reflux pump 24, and the sewage backflow pipe b 22 in biological attachment district 4 is communicated with the sewage backflow pipe a 21 in anoxic acidifying district 3 through sewage backflow pump 23;
Wherein, Be provided with water inlet pipe 20 and board-like ultra-fine grid 19 before the anaerobic zone 1; Anaerobic zone 1 has hole 25 with top, the biological attachment district 4 of biological attachment district 4 shared pool walls with the bottom of membrane biological reaction district 5 shared pool walls with top, the anoxic acidifying district 3 of anoxic acidifying district 3 shared pool walls with bottom, the suspended biological aerobic zone 2 of suspended biological aerobic zone 2 shared pool walls, to form water stream channel.Said aerating apparatus 11 is made up of aerated conduit and aerator.
(MBR) bed mud is back to anaerobic zone and anoxic acidifying district from the membrane biological reaction district, so that the mud acidifying, clear up, realizes sludge reduction.From sewage backflow to the oxygen-starved area in biological attachment district to improve denitrification effect.
Claims (2)
1. biological attachment type membrane bioreactor; Comprise membrane biological reaction district (5); It is characterized in that, connect to form successively by anaerobic zone (1), suspended biological aerobic zone (2), anoxic acidifying district (3), biological attachment district (4) and membrane biological reaction district (5);
Said anaerobic zone (1) top is provided with inlet channel (18), and the bottom is provided with diving impeller (10); Inside is provided with combined stuffing (14); Sidewall is provided with mud return line a (9);
The bottom of said suspended biological aerobic zone (2) is provided with aerating apparatus (11);
The bottom in said anoxic acidifying district (3) is provided with air stirring pipe (12); Inside is provided with elastic filler (15); Sidewall is provided with mud return line c (8) and sewage backflow pipe a (26);
The sidewall in said biological attachment district (4) is provided with sewage backflow pipe b (22); The bottom is provided with aerating apparatus (11); Inside is provided with filter cloth formula filler (16);
The sidewall in said membrane biological reaction district (5) is provided with mud return line b (7); Top side wall is provided with suction pump (6); Sidewall bottom excess sludge discharge pipe (21); The bottom is provided with aerating apparatus (11) and intermittent type gas washing pipe road (13); Inside is provided with hollow fiber film assembly (17);
The mud return line b (7) in membrane biological reaction district (5) is communicated with the mud return line a (9) of anaerobic zone (1) and the mud return line c (8) in anoxic acidifying district (3) through sludge reflux pump (24), and the sewage backflow pipe b (22) of biological attachment district (4) is communicated with the sewage backflow pipe a (26) in anoxic acidifying district (3) through sewage backflow pump (23);
Wherein, Preceding water inlet pipe (20) and the board-like ultra-fine grid (19) of being provided with of anaerobic zone (1), anaerobic zone (1) has hole (25) with top, biological attachment district (4) of the shared pool wall in biological attachment district (4) with the bottom of the shared pool wall in membrane biological reaction district (5) with top, the anoxic acidifying district (3) of the shared pool wall in anoxic acidifying district (3) with bottom, the suspended biological aerobic zone (2) of the shared pool wall of suspended biological aerobic zone (2).
2. a kind of biological attachment type membrane bioreactor according to claim 1 is characterized in that said aerating apparatus (11) is made up of aerated conduit and aerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220162279 CN202529908U (en) | 2012-04-17 | 2012-04-17 | Organism-attached membrane bioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220162279 CN202529908U (en) | 2012-04-17 | 2012-04-17 | Organism-attached membrane bioreactor |
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| Publication Number | Publication Date |
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| CN202529908U true CN202529908U (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220162279 Expired - Lifetime CN202529908U (en) | 2012-04-17 | 2012-04-17 | Organism-attached membrane bioreactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112573762A (en) * | 2020-11-13 | 2021-03-30 | 普民环保科技有限公司 | LAT high-efficiency unpowered pretreatment device |
-
2012
- 2012-04-17 CN CN 201220162279 patent/CN202529908U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112573762A (en) * | 2020-11-13 | 2021-03-30 | 普民环保科技有限公司 | LAT high-efficiency unpowered pretreatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HYDROCHINA ZHONGNAN ENGINEERING CORPORATION Free format text: FORMER NAME: ZHONGNAN PROSPECTING DESIGN INST. CHINA HYDRAUELECTRIC CONSULTANT GROUP Owner name: CHINA POWER GROUP ZHONGNAN INVESTIGATION DESIGN + Free format text: FORMER NAME: HYDROCHINA ZHONGNAN ENGINEERING CORPORATION |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 410014 Hunan province Changsha Yuhua District, camphor Road No. 16 Patentee after: POWERCHINA ZHONGNAN ENGINEERING Corp.,Ltd. Patentee after: Hunan Chenzhou Guoshui Water Treatment Co.,Ltd. Address before: 410014 Hunan province Changsha Yuhua District, camphor Road No. 16 Patentee before: HYDROCHINA ZHONGNAN ENGINEERING Corp. Patentee before: Hunan Chenzhou Guoshui Water Treatment Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 410014 Hunan province Changsha Yuhua District, camphor Road No. 16 Patentee after: HYDROCHINA ZHONGNAN ENGINEERING Corp. Patentee after: Hunan Chenzhou Guoshui Water Treatment Co.,Ltd. Address before: 410014, 9 camphor Road, Yuhua District, Hunan, Changsha Patentee before: Mid-South Hydroelectric Investigation & Design Institute of China Hydropower Engineering Consulting Group Patentee before: Hunan Chenzhou Guoshui Water Treatment Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |