CN205188074U - Sewage treatment unit based on membrane bioreactor - Google Patents
Sewage treatment unit based on membrane bioreactor Download PDFInfo
- Publication number
- CN205188074U CN205188074U CN201520924054.7U CN201520924054U CN205188074U CN 205188074 U CN205188074 U CN 205188074U CN 201520924054 U CN201520924054 U CN 201520924054U CN 205188074 U CN205188074 U CN 205188074U
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- Prior art keywords
- membrane bioreactor
- pond
- back flush
- pipe
- sewage treatment
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model relates to a sewage treatment technical field discloses a sewage treatment unit based on membrane bioreactor, including the sewage pipe, grid, inclined lamellar precipitation pond, anaerobism pond, the oxygen deficiency pond that the connect gradually oxygen pond of becoming reconciled, still including having located at least one membrane bioreactor the oxygen pond in, with the outlet pipe that membrane bioreactor communicates, the mud pipe of oxygen bottom of the pool portion has been located to and the L shape back flush of having located in the oxygen pond is distinguished, the water inlet in L shape back flush district is through back flush pipe and play water piping connection, the delivery port in L shape back flush district corresponds with membrane bioreactor, still be equipped with the back flush pump on the back flush pipe. The utility model discloses a back flush at the in -service use in -process, can be carried out to the membrane bioreactor in the good oxygen pond to the setting in back flush pump, back flush pipe and L shape back flush district, avoids membrane bioreactor to use for a long time and receives the pollution, improves its availability factor.
Description
Technical field
The utility model relates to technical field of sewage, more particularly, and particularly a kind of sewage treatment unit based on membrane bioreactor.
Background technology
At present, activated sludge process is widely used the process in sanitary sewage, and general aeration tank and the settling tank of adopting forms joint process.Be arranged on the title primary sedimentation pond before aeration tank, be arranged on aeration tank below be called secondary sedimentation basins, be respectively used to pre-treatment and the aftertreatment of waste water.Aeration tank also has builds jointly with secondary sedimentation basins.This facility is made up of aeration zone, guiding region, settling region, recirculating zone four part.The effect of guiding region makes sludge coagulating and makes carbonated drink separation, for precipitation creates conditions.In aeration zone, waste water fully mixes with returned sluge, and then through inflow settling region, guiding region, the water after clarification is discharged through overflow weir.Precipitating sludge passes back into aeration tank bottom aeration zone.This facility structure is compact, and flow process is short, can save sludge reflux equipment.But traditional activated sludge process floor space is large, and initial cost is high.Second pond is the important component part of Sludge System, and its effect mainly makes mud be separated, and mixed solution is clarified, concentrates and returnedactivatedsludge.Its working effect directly can affect effluent quality and the returned sluge concentration of Sludge System.
Second pond, except carrying out mud-water separation, also carries out sludge condensation, due to the change of the water yield, water quality, also temporarily will store mud.Because second pond will carry out sludge condensation, required pool area is greater than the pool area only carried out needed for mud-water separation.
Entering second pond active sludge character feature is that active sludge intermixture concentration is high, has flocculence, belongs to stratification precipitation.Precipitation has interface clearly between muddy water, and flocs unit combines overall common sinking.Active sludge light weight, is easily walked by water-band, easily produces the phenomenon of secondary stream and density flow, makes actual water-carrying section be far smaller than the water-carrying section of design.
For this reason, have in prior art and increase membrane bioreactor about in waste disposal plant, but, in actual use, because the filtering accuracy of membrane bioreactor is higher, easily polluted.And then affect it and normally use.Therefore, be necessary to improve prior art.
Utility model content
The purpose of this utility model is to provide a kind of sewage treatment unit based on membrane bioreactor.
In order to solve problem set forth above, the technical solution adopted in the utility model is: a kind of sewage treatment unit based on membrane bioreactor, comprise the waste pipe connected successively, grid, inclined-plate clarifying basin, anaerobic pond, anoxic pond and Aerobic Pond, also comprise at least one membrane bioreactor be located in Aerobic Pond, the rising pipe be communicated with membrane bioreactor, be located at the shore pipe bottom Aerobic Pond, and the L shape back flushing district be located in Aerobic Pond, the water-in in described L shape back flushing district is connected with rising pipe by backwash tube, the water outlet in described L shape back flushing district is corresponding with membrane bioreactor, described backwash tube is also provided with backwashing pump.
According to a preferred embodiment of the present utility model: also comprise and be located at vertical clapboard in Aerobic Pond and horizontal baffle, described L shape back flushing district is made up of vertical clapboard, horizontal baffle and Aerobic Pond inwall.
According to a preferred embodiment of the present utility model: also comprise the filter screen being located at described L shape back flushing district water outlet.
According to a preferred embodiment of the present utility model: also comprise the valve on the pipeline be located between anoxic pond and Aerobic Pond.
Compared with prior art, the beneficial effects of the utility model are: the utility model is by the setting in backwashing pump, backwash tube and L shape back flushing district, in actual use, back flushing can be carried out to the membrane bioreactor in Aerobic Pond, avoid membrane bioreactor use for a long time and polluted, improve its service efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the sewage treatment unit based on membrane bioreactor of the present utility model.
Description of reference numerals: 1, waste pipe, 2, grid, 3, inclined-plate clarifying basin, 4, anaerobic pond, 5, anoxic pond, 6, Aerobic Pond, 7, membrane bioreactor, 8, rising pipe, 9, shore pipe, 10, valve, 11, backwashing pump, 12, backwash tube, 13, L shape back flushing district, 14, vertical clapboard, 15, horizontal baffle, 16, filter screen.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
Consult shown in Fig. 1, the utility model provides a kind of sewage treatment unit based on membrane bioreactor, comprise the waste pipe 1 connected successively, grid 2, inclined-plate clarifying basin 3, anaerobic pond 4, anoxic pond 5 and Aerobic Pond 6, also comprise at least one membrane bioreactor 7 be located in Aerobic Pond 6, the rising pipe 8 be communicated with membrane bioreactor 7, be located at the shore pipe 9 bottom Aerobic Pond 6, and the L shape back flushing district 13 be located in Aerobic Pond 6, the water-in in described L shape back flushing district 13 is connected with rising pipe 8 by backwash tube 12, the water outlet in described L shape back flushing district 13 is corresponding with membrane bioreactor 7, described backwash tube 12 is also provided with backwashing pump 11.
Concrete, the utility model also comprises is located at vertical clapboard 14 in Aerobic Pond 6 and horizontal baffle 15, and described L shape back flushing district 13 is made up of vertical clapboard 14, horizontal baffle 15 and Aerobic Pond 6 inwall.
The utility model also comprises the filter screen 16 being located at described L shape back flushing district 13 water outlet, and the impurity in Aerobic Pond 6 can be avoided like this to enter in L shape back flushing district 13.
The utility model also comprises the valve 10 on the pipeline be located between anoxic pond 5 and Aerobic Pond 6.When carrying out back flushing, for avoiding backflow, need valve 10 to close.
Principle of work of the present utility model is, first sewage water tackles the floating matter in water by grid 2, and for follow-up structures and membrane module provide protection, sewage, by entering inclined-plate clarifying basin 3 after grid 2, makes the particulate matter in water precipitate.The sewage flowed out from settling tank enters anaerobic pond 4, anoxic pond 5 successively, carries out denitrogenation and releases the content that phosphorus reduces COD in sewage simultaneously.Sewage enters Aerobic Pond 6 subsequently, carries out nitration reaction by the organism in the action breaks water of microorganism simultaneously.Carry out membrane sepn and biological treatment further by membrane bioreactor 7 again, discharged the water handled well by rising pipe 8; And due to long use, membrane bioreactor 7 can produce dirt unavoidably, like this by the setting in backwashing pump 11, backwash tube 12 and L shape back flushing district 13, in actual use, back flushing can be carried out to the membrane bioreactor 7 in Aerobic Pond, avoid membrane bioreactor use for a long time and polluted, improve its service efficiency.
Above-described embodiment is the utility model preferably embodiment; but embodiment of the present utility model is not restricted to the described embodiments; change, the modification done under other any does not deviate from spirit of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (4)
1. the sewage treatment unit based on membrane bioreactor, comprise the waste pipe (1) connected successively, grid (2), inclined-plate clarifying basin (3), anaerobic pond (4), anoxic pond (5) and Aerobic Pond (6), it is characterized in that: also comprise at least one membrane bioreactor (7) be located in Aerobic Pond (6), the rising pipe (8) be communicated with membrane bioreactor (7), be located at the shore pipe (9) of Aerobic Pond (6) bottom, and the L shape back flushing district (13) be located in Aerobic Pond (6), the water-in of described L shape back flushing district (13) is connected with rising pipe (8) by backwash tube (12), the water outlet of described L shape back flushing district (13) is corresponding with membrane bioreactor (7), described backwash tube (12) is also provided with backwashing pump (11).
2. the sewage treatment unit based on membrane bioreactor according to claim 1, it is characterized in that: also comprise and be located at vertical clapboard (14) in Aerobic Pond (6) and horizontal baffle (15), described L shape back flushing district (13) is made up of the inwall of vertical clapboard (14), horizontal baffle (15) and Aerobic Pond (6).
3. the sewage treatment unit based on membrane bioreactor according to claim 1, is characterized in that: also comprise the filter screen (16) being located at described L shape back flushing district (13) water outlet.
4. the sewage treatment unit based on membrane bioreactor according to claim 1, is characterized in that: also comprise the valve (10) on the pipeline be located between anoxic pond (5) and Aerobic Pond (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520924054.7U CN205188074U (en) | 2015-11-18 | 2015-11-18 | Sewage treatment unit based on membrane bioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520924054.7U CN205188074U (en) | 2015-11-18 | 2015-11-18 | Sewage treatment unit based on membrane bioreactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205188074U true CN205188074U (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520924054.7U Expired - Fee Related CN205188074U (en) | 2015-11-18 | 2015-11-18 | Sewage treatment unit based on membrane bioreactor |
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| Country | Link |
|---|---|
| CN (1) | CN205188074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000033A (en) * | 2016-08-08 | 2016-10-12 | 广东紫方环保技术有限公司 | Organic exhaust gas treatment device |
-
2015
- 2015-11-18 CN CN201520924054.7U patent/CN205188074U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000033A (en) * | 2016-08-08 | 2016-10-12 | 广东紫方环保技术有限公司 | Organic exhaust gas treatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20171118 |