CN103570131A

CN103570131A - Facultative anaerobic type membrane bioreaction integrated sewage treatment equipment

Info

Publication number: CN103570131A
Application number: CN201310587751.3A
Authority: CN
Inventors: 陈鑫
Original assignee: GREEN ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
Current assignee: GREEN ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
Priority date: 2013-11-21
Filing date: 2013-11-21
Publication date: 2014-02-12
Anticipated expiration: 2033-11-21
Also published as: CN103570131B

Abstract

The invention discloses facultative anaerobic type membrane bioreaction integrated sewage treatment equipment, belongs to environment-friendly equipment, and aims at providing sewage treatment equipment which has a good nitrogen and phosphorus removal effect and is free from discharged sludge. The sewage treatment equipment comprises a water tank, wherein a hydrolyzing region (13), a facultative anaerobic region (15), an aeration region (17) and a reaction region (23) are arranged in the water tank (1); a second water passing hole (25) is formed in a right baffle (10); a first backflow channel (7) and a third water passing hole (26) are formed in a middle baffle (10); a first water passing hole (24) and a second backflow channel (19) are formed in the left baffle (10); an aeration stirring pipe (9) is arranged in the facultative anaerobic region (15); an aerator (18), a first concentration region (6) and a first jet pump (4) are arranged in the aeration region (17); a membrane assembly (2), an aeration pipe (3), a second concentration region (20) and a second jet pump (21) are arranged in the reaction region (23).

Description

Facultative type membrane biological reaction integrated sewage treating apparatus

Technical field

The present invention relates to a kind of environmental protection equipment, relate in particular to a kind of sewage disposal device.

Background technology

Membrane bioreactor is a kind of waste disposal plant being combined with biological processing unit by film separation unit, is widely used in sewage disposal.Because membrane bioreactor is higher with the sludge concentration of aerobic treatment Wei Zhu， film reaction district and aerobic zone, and move with high-solubility oxygen state; Therefore still need in time by the mud otherwise processed of discharging.In addition, current aerobic type membrane biological reaction integration apparatus cannot be realized denitrogenation dephosphorizing, and anoxic, anaerobism equipment need be set separately, and the mixed solution in aerobic zone and film reaction district needs peripherals to be back to oxygen-starved area, anaerobic zone just can reach the effect of denitrogenation dephosphorizing.

summary of the invention:for the above-mentioned defect existing in prior art, the present invention aims to provide a kind of good denitrogenation and dephosphorization effect, without the facultative type membrane biological reaction integrated sewage treating apparatus of outer blowdown mud.

To achieve these goals, the present invention by the following technical solutions: it comprises water tank; Water tank is divided into hydrolysis area, aerobic area, aeration zone and reaction zone by three dividing plates, has the water inlet pipe being communicated with hydrolysis area on water tank; On the dividing plate on right side, have hydrolysis area is communicated with aerobic area second cross the mouth of a river, on middle dividing plate, have the first backflow road that aerobic area is communicated with aeration zone and the 3rd the mouth of a river, on the dividing plate in left side, have the first mistake mouth of a river and the second backflow road that aeration zone is communicated with reaction zone; In aerobic area, there are many aeration agitation pipes that are communicated with airduct; There is the first enrichment region being isolated by the first swash plate position near water tank rear wall in aeration zone, in this first enrichment region, have first jet-pump corresponding with the first position, backflow road, the opposite side of the first swash plate has and is fixed on the some aerators that are communicated with airduct in aeration zone; There is the second enrichment region being isolated by the second swash plate position near water tank antetheca in reaction zone, in this second enrichment region, there is second jet-pump corresponding with the second position, backflow road, the opposite side of the second swash plate has and is fixed on the membrane module being communicated with rising pipe in reaction zone, and there are many aeration tubes that are communicated with airduct the below of this membrane module.

The transverse wall that has polylith to be interspersed in aerobic area, each aeration agitation pipe lays respectively between adjacent transverse wall and near water tank bottom; In aeration zone, near the 3rd position of crossing the mouth of a river, have baffle plate, aerator is arranged near water tank bottom; First crosses the mouth of a river and second crosses the mouth of a river near tank top and the setting of water tank rear wall, and the first backflow road and the second backflow road are near water tank bottom setting, and the 3rd crosses the mouth of a river arranges near water tank bottom and water tank antetheca.

Compared with the prior art, the present invention has been owing to having adopted technique scheme, take MBR(membrane bioreactor) be main body, utilize aeration air push sewage in water tank, to make internal recycle and flow, thus can be to sludge retention, realize and moving under high sludge concentration condition; In addition, owing to regulating the dissolved oxygen concentration in water by controlling the mode of aeration rate, therefore can under the oxygen condition of holding concurrently, move, and realize endogenous digestion and the denitrogenation dephosphorizing of mud.

Accompanying drawing explanation

Fig. 1 is the plan structure schematic diagram removing after tank top of the present invention;

Fig. 2 is the A-A sectional view in Fig. 1;

Fig. 3 is the B-B sectional view in Fig. 1;

Fig. 4 is the C-C sectional view in Fig. 2.

In figure: rising pipe 1, membrane module 2, aeration tube 3, the first jet-pump 4, the first swash plate 5, the first enrichment region 6, the first backflow road 7, transverse wall 8, aeration agitation pipe 9, dividing plate 10, water tank 11, water inlet pipe 12, hydrolysis area 13, airduct 14, aerobic area 15, baffle plate 16, aeration zone 17, aerator 18, the second backflow road 19, the second enrichment region 20, the second jet-pump 21, the second swash plate 22, reaction zone 23, the first mistake mouth of a river 24, second are crossed the mouth of a river 25, the 3rd and crossed the mouth of a river 26.

Embodiment

Below in conjunction with accompanying drawing and specific embodiment, the invention will be further described:

As shown in Fig. 1～4: have three dividing plates 10 that are divided into 17He reaction zone, 15, aeration zone, 13, aerobic area, hydrolysis area 23 in water tank 11, be fixed with the water inlet pipe 12 being communicated with hydrolysis area 13 on this water tank.Be positioned on that piece dividing plate 10 on right side, have 13Yu aerobic area, hydrolysis area 15 is communicated with second cross the mouth of a river 25, on that piece dividing plate 10 in the middle of being positioned at, there is the first backflow road 7 and the 3rd that 15Yu aeration zone, aerobic area 17 is communicated with to cross the mouth of a river 26, on that piece dividing plate 10 on the left of being positioned at, have and cross the mouth of a river 24 and the second backflow road 19 by first of 23 connections of 17Yu reaction zone, aeration zone.Many aeration agitation pipes 9 that have close water tank bottom setting in aerobic area 15 and be communicated with airduct 14.There is the first enrichment region 6 isolating by the first swash plate 5 position near water tank rear wall in aeration zone 17, in this first enrichment region, have the opposite side of first jet-pump 4, the first swash plates 5 corresponding with 7 positions, the first backflow road to have to be fixed in aeration zone 17 near water tank bottom setting some aerators 18 of being communicated with airduct 14; Between the first swash plate 5 and tank top, have the space that the first enrichment region 6 is communicated with aeration zone 17, aeration zone 17 is crossed 24Yu reaction zone, the mouth of a river 23 by the first enrichment region 6, first and is communicated with.There is the second enrichment region 20 isolating by the second swash plate 22 position near water tank antetheca in reaction zone 23, in this second enrichment region, there is second jet-pump 21 corresponding with 19 positions, the second backflow road, the opposite side of the second swash plate 22 has and is fixed on the membrane module 2 being communicated with elevated tank (not indicating in figure) by rising pipe 1 in reaction zone 23, and there are the many aeration tubes 3 that are communicated with airduct 14 below of this membrane module; Between the second swash plate 22 and water tank lower curtate, having the ，Gai reaction zone, space that the second 20Yu reaction zone, enrichment region 23 is communicated with to cross 19Yu aeration zone, the mouth of a river 17 by the second enrichment region 20, second is communicated with.

In order to extend sewage flow process, to improve treatment effect, in aerobic area 15, there is polylith to be interspersed, this aerobic area is divided into the transverse wall 8 of S turnover passage, each aeration agitation pipe 9 is arranged between adjacent transverse wall 8.

For fear of the mud in aeration zone 17, enter in 15， aeration zone, aerobic area 17 and be fixed with baffle plate 16 near the 3rd position of crossing the mouth of a river 26.

In order further to improve treatment effect, first crosses the mouth of a river 24 and second crosses the mouth of a river 25 near tank top and the setting of water tank rear wall, and the first backflow road 7 and the second backflow road 19 are near water tank bottom setting, and the 3rd crosses the mouth of a river 26 arranges near water tank bottom and water tank antetheca.

Principle of work: sewage enters hydrolysis area 13 from water inlet pipe 12 is crossed the mouth of a river 25 by second and is entered aerobic area 15 after anaerobic treatment, not only can make fully mixing and can also preventing sludge settling of sewage and active sludge after Air Exposure; The sewage of aerobic area 15 is crossed the mouth of a river 26 by the 3rd and is entered aeration zone 17, and the sewage of crossing through aerobic treatment covers the first swash plate 5 and enters the first enrichment region 6; High sludge concentration water in this first enrichment region after precipitation is back to aerobic area 15 by the first jet-pump 4 through the first backflow road 7, and primary water in this first enrichment region is crossed the mouth of a river 24 by first and entered reaction zone 23; Primary water flows out by rising pipe 1 after membrane module 2 solid-liquid separation, and the mud that is deposited on 23 bottoms, reaction zone enters the second enrichment region 20 from the space of the second swash plate 22 belows, then by the second jet-pump 21, by the second backflow road 19, is back to aeration zone 17.Realize thus the circulation of mud.

Claims

1. a facultative type membrane biological reaction integrated sewage treating apparatus, comprises water tank; It is characterized in that: water tank (11) is divided into hydrolysis area (13), aerobic area (15), aeration zone (17) and reaction zone (23) by three dividing plates (10), has the water inlet pipe (12) being communicated with hydrolysis area (13) on water tank (11); On the dividing plate (10) on right side, have hydrolysis area (13) are communicated with aerobic area (15) second cross the mouth of a river (25), on middle dividing plate (10), have the first backflow road (7) that aerobic area (15) are communicated with aeration zone (17) and the 3rd the mouth of a river (26), on the dividing plate (10) in left side, have the first mistake mouth of a river (24) and the second backflow road (19) that aeration zone (17) are communicated with reaction zone (23); In aerobic area (15), there are the many aeration agitation pipes (9) that are communicated with airduct (14); There is the first enrichment region (6) being isolated by the first swash plate (5) position near water tank rear wall in aeration zone (17), in this first enrichment region, have first jet-pump (4) corresponding with the first position, backflow road (7), the opposite side of the first swash plate (5) has and is fixed on the some aerators (18) that are communicated with airduct (14) in aeration zone (17); There is the second enrichment region (20) being isolated by the second swash plate (22) position near water tank antetheca in reaction zone (23), in this second enrichment region, there is second jet-pump (21) corresponding with the second position, backflow road (19), the opposite side of the second swash plate (22) has and is fixed on the membrane module (2) being communicated with rising pipe (1) in reaction zone (23), and there are the many aeration tubes (3) that are communicated with airduct (14) below of this membrane module.

2. facultative type membrane biological reaction integrated sewage treating apparatus according to claim 1, it is characterized in that: the transverse wall (8) that has polylith to be interspersed in aerobic area (15), each aeration agitation pipe (9) lays respectively between adjacent transverse wall (8) and near water tank bottom.

3. facultative type membrane biological reaction integrated sewage treating apparatus according to claim 1 and 2, is characterized in that: in aeration zone (17), near the 3rd position of crossing the mouth of a river (26), have baffle plate (16), aerator (18) is arranged near water tank bottom.

4. facultative type membrane biological reaction integrated sewage treating apparatus according to claim 1 and 2, it is characterized in that: first crosses the mouth of a river (24) and second crosses the mouth of a river (25) near tank top and the setting of water tank rear wall, the first backflow road (7) and the second backflow road (19) are near water tank bottom setting, and the 3rd crosses the mouth of a river (26) arranges near water tank bottom and water tank antetheca.

5. facultative type membrane biological reaction integrated sewage treating apparatus according to claim 3, it is characterized in that: first crosses the mouth of a river (24) and second crosses the mouth of a river (25) near tank top and the setting of water tank rear wall, the first backflow road (7) and the second backflow road (19) are near water tank bottom setting, and the 3rd crosses the mouth of a river (26) arranges near water tank bottom and water tank antetheca.