CN103570131B

CN103570131B - Facultative anaerobic type membrane bioreaction integrated sewage treatment equipment

Info

Publication number: CN103570131B
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: 2014-12-24
Anticipated expiration: 2033-11-21
Also published as: CN103570131A

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, particularly relate to a kind of sewage disposal device.

Background technology

Membrane bioreactor is a kind of waste disposal plant combined with biological processing unit by film separation unit, has been widely used in sewage disposal.Because membrane bioreactor is based on aerobic treatment, higher in the sludge concentration of film reaction district and aerobic zone, and run with high-solubility oxygen state; Therefore the mud otherwise processed of will discharge in time is still needed.In addition, current aerobic membrane biological reaction integration apparatus cannot realize denitrogenation dephosphorizing, need arrange anoxic, anaerobism equipment separately, the mixed solution in aerobic zone and film reaction district need peripherals to be back to effect that oxygen-starved area, anaerobic zone just can reach denitrogenation dephosphorizing.

summary of the invention:for the above-mentioned defect existed in prior art, the present invention aims to provide a kind of good denitrogenation and dephosphorization effect, facultative type membrane biological reaction integrated sewage treating apparatus without 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 pieces of dividing plates, water tank has the water inlet pipe be communicated with hydrolysis area; The dividing plate on right side has hydrolysis area is communicated with aerobic area second cross the mouth of a river, have on the dividing plate of centre aerobic area is communicated with aeration zone first reflux road with the 3rd the mouth of a river, on the dividing plate in left side, have the first mistake mouth of a river and second be communicated with reaction zone aeration zone to reflux road; The many aeration agitation pipes be communicated with airduct are had in aerobic area; There is the first enrichment region isolated by the first swash plate position near water tank rear wall in aeration zone, have the first jet-pump that position, road of refluxing with first is corresponding in this first enrichment region, the opposite side of the first swash plate has the some aerators being fixed on and being communicated with airduct in aeration zone; There is the second enrichment region isolated by the second swash plate position near water tank antetheca in reaction zone, the second jet-pump that position, road of refluxing with second is corresponding is had in this second enrichment region, the opposite side of the second swash plate has the fixing membrane module be communicated with rising pipe in the reaction region, and there are the many aeration tubes be communicated with airduct the below of this membrane module.

Have the transverse wall that polylith is interspersed in aerobic area, each aeration agitation pipe to lay respectively between adjacent transverse wall and near water tank bottom; There is baffle plate the position crossing the mouth of a river near the 3rd in aeration zone, and 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 arranged near water tank bottom, and the 3rd crosses the mouth of a river is arranged near water tank bottom and water tank antetheca.

Compared with the prior art, the present invention owing to have employed technique scheme, based on MBR(membrane bioreactor), utilize aeration air push sewage to make internal circulation flow in water tank, thus can to sludge retention, realize running under high sludge concentration condition; In addition, regulating the dissolved oxygen concentration in water due to the mode by controlling aeration rate, therefore can run under double oxygen condition, and realizing endogenous digestion and the denitrogenation dephosphorizing of mud.

Accompanying drawing explanation

Fig. 1 of the present inventionly removes the plan structure schematic diagram after tank top;

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: reflux enrichment region 20, second, road 19, second jet-pump 21, second swash plate 22, reaction zone 23, first of rising pipe 1, membrane module 2, backflow road 7, aeration tube 3, first jet-pump 4, first swash plate 5, first enrichment region 6, first, 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, second is crossed the mouth of a river 24, second and crossed the mouth of a river 25, the 3rd and cross 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 figures 1-4: have the three pieces of dividing plates 10 being divided into hydrolysis area 13, aerobic area 15, aeration zone 17 and reaction zone 23 in water tank 11, this water tank is fixed with the water inlet pipe 12 be communicated with hydrolysis area 13.That block dividing plate 10 on the right side of being positioned at there is the second mistake mouth of a river 25 be communicated with aerobic area 15 hydrolysis area 13, be positioned at and that middle block dividing plate 10 have first road 7 and the 3rd that reflux be communicated with aeration zone 17 aerobic area 15 cross the mouth of a river 26, that block dividing plate 10 on the left of being positioned at has the first mistake mouth of a river 24 and second be communicated with reaction zone 23 aeration zone 17 to reflux road 19.Close water tank bottom is had to arrange and the many aeration agitation pipes 9 be communicated with airduct 14 in aerobic area 15.There is the first enrichment region 6 isolated by the first swash plate 5 position near water tank rear wall in aeration zone 17, the opposite side of the first jet-pump 4, first swash plate 5 corresponding to position, road 7 of refluxing with first is had to have to be fixed in aeration zone 17 and arrange and the some aerators 18 be communicated with airduct 14 near water tank bottom in this first enrichment region; First swash plate 5 with have the space be communicated with aeration zone 17 the first enrichment region 6 between tank top, aeration zone 17 by first enrichment region 6, first cross the mouth of a river 24 be communicated with reaction zone 23.There is the second enrichment region 20 isolated by the second swash plate 22 position near water tank antetheca in reaction zone 23, the second jet-pump 21 that position, road 19 of refluxing with second is corresponding is had in this second enrichment region, the opposite side of the second swash plate 22 has and is fixed on by the membrane module 2 that rising pipe 1 is communicated with elevated tank (not indicating in figure) in reaction zone 23, and there are the many aeration tubes 3 be communicated with airduct 14 below of this membrane module; Second swash plate 22 with have the space be communicated with reaction zone 23 the second enrichment region 20 between water tank lower curtate, this reaction zone by second enrichment region 20, second cross the mouth of a river 19 be communicated with aeration zone 17.

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

In order to avoid the mud in aeration zone 17 enters aerobic area 15, the position crossing the mouth of a river 26 near the 3rd in aeration zone 17 is fixed with baffle plate 16.

In order to improve treatment effect further, 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 arranged near water tank bottom, and the 3rd crosses the mouth of a river 26 near water tank bottom and the setting of water tank antetheca.

Principle of work: sewage enters hydrolysis area 13 from water inlet pipe 12, crosses the mouth of a river 25 by second and enters aerobic area 15, can not only make fully mixing and can also preventing sludge settling of sewage and active sludge after Air Exposure after anaerobic treatment; 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 crossed 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 the primary water in this first enrichment region enters reaction zone 23 by the first mistake mouth of a river 24; Primary water is flowed out by rising pipe 1 after membrane module 2 solid-liquid separation, and the mud be deposited on bottom reaction zone 23 enters the second enrichment region 20 from the space below the second swash plate 22, is then back to aeration zone 17 by the second jet-pump 21 by the second backflow road 19.Realize the circulation of mud thus.

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 pieces of dividing plates (10), water tank (11) has the water inlet pipe (12) be communicated with hydrolysis area (13); The dividing plate (10) on right side has hydrolysis area (13) are communicated with aerobic area (15) second cross the mouth of a river (25), have on the dividing plate (10) of centre aerobic area (15) are communicated with aeration zone (17) first reflux road (7) with 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 second aeration zone (17) be communicated with reaction zone (23) to reflux road (19); The many aeration agitation pipes (9) be communicated with airduct (14) are had in aerobic area (15); There is the first enrichment region (6) isolated by the first swash plate (5) position near water tank rear wall in aeration zone (17), have the first jet-pump (4) that road (7) position of refluxing with first is corresponding in this first enrichment region, the opposite side of the first swash plate (5) has the some aerators (18) being fixed on and being communicated with airduct (14) in aeration zone (17); There is the second enrichment region (20) isolated by the second swash plate (22) position near water tank antetheca in reaction zone (23), the second jet-pump (21) that road (19) position of refluxing with second is corresponding is had in this second enrichment region, the opposite side of the second swash plate (22) has the membrane module (2) being fixed on and being communicated with rising pipe (1) in reaction zone (23), and there are the many aeration tubes (3) be 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) having polylith to be interspersed in aerobic area (15), each aeration agitation pipe (9) to lay 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: there is baffle plate (16) position crossing the mouth of a river (26) near the 3rd in aeration zone (17), and 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, first backflow road (7) and the second backflow road (19) are arranged near water tank bottom, and the 3rd crosses the mouth of a river (26) is arranged 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, first backflow road (7) and the second backflow road (19) are arranged near water tank bottom, and the 3rd crosses the mouth of a river (26) is arranged near water tank bottom and water tank antetheca.