CN102030412B

CN102030412B - Rotary dephosphorization and denitrification membrane biological treatment device and technique method thereof

Info

Publication number: CN102030412B
Application number: CN2010105329587A
Authority: CN
Inventors: 张文波; 杨丽芳; 严荣; 姚斌; 陈雷锋
Original assignee: SUZHOU CHUANGXIN PURIFICATION CO Ltd
Current assignee: SUZHOU CHUANGXIN PURIFICATION CO Ltd
Priority date: 2010-11-05
Filing date: 2010-11-05
Publication date: 2012-03-14
Anticipated expiration: 2030-11-05
Also published as: CN102030412A

Abstract

The invention discloses a rotary dephosphorization and denitrification membrane biological treatment device and a technique method for treating sewage by using the membrane biological treatment device. The rotary dephosphorization and denitrification membrane biological treatment device comprises a first biological selection zone, a second biological selection zone, an anaerobic zone, an anoxic zone, an aerobic zone, a first backflow channel unit and a second backflow channel unit which are divided by a first separating wall, a second separating wall and a guide wall; the sewage to be treated in the first biological selection zone and the second biological selection zone is mixed with mixed liquid backflowing from the first backflow channel unit and the second backflow channel unit; and the obtained mixture is treated at the anaerobic zone, the anoxic zone and the aerobic zone, and backflows through the first backflow channel unit and the second backflow channel unit to realize internal circulation. Compared with the existing treating device and the technique, in the rotary dephosphorization and denitrification membrane biological treatment device, the occupied area is smaller, the retention time of water conservancy is shorter and more energy is saved.

Description

Rotary type dephosphorization denitrogenation film biological treatment device and process method

Technical field

The present invention relates to a kind of rotary type dephosphorization denitrogenation film biological treatment device, also relate to the process method of using this film biological treatment device to dispose of sewage.

Background technology

Existing waste disposal plant and technology are taked the separately structure that refluxes via the backflow canal again of series connection of anaerobic pond, anoxic pond, Aerobic Pond, in anaerobic pond and anoxic pond dynamic stirring equipment are set and are used to drive away air; Effluent stream is accepted processing through different pond bodies; Floor space is bigger like this, and the water conservancy residence time is longer, and because the existence of dynamic stirring equipment; Make energy consumption bigger, running cost is higher.

Summary of the invention

The purpose of this invention is to provide a kind of dephosphorization denitrogenation film biological treatment device and technology that is used to dispose of sewage, it can prevent waste disposal plant floor space excessive and energy consumption and running cost problem of higher.

For achieving the above object; The present invention provides a kind of rotary type dephosphorization denitrogenation film biological treatment device; Comprise pond body with water-in; Be provided with the first closed dividing wall of annular in the body of said pond; The first closed dividing wall of said annular centers on and forms aerobic zone; Be provided with membrane bioreactor in the said aerobic zone and be used to order about the reflux pump of drainage flow; Form the backflow canal between one side of first dividing wall that said annular is closed and the pool wall of said pond body, be provided with the obstruct wall between a side of first dividing wall that said annular is closed and the pool wall of said pond body, said backflow canal is formed two the disconnected first backflow canal unit and the second backflow canal unit by said obstruct wall blocking-up; One side of first dividing wall that said annular is closed offers at least one connecting hole respectively on the both sides of said obstruct wall; The said first backflow canal unit and the second backflow canal unit are connected with said aerobic zone through said connecting hole respectively, are provided with second dividing wall between other sides of first dividing wall that said annular is closed and the pool wall of said pond body, and an end of said second dividing wall is arranged on a side of the first closed dividing wall of said annular; The other end is arranged on the said pool wall; Form first district that communicates with the said first backflow canal unit between said second dividing wall and the said pool wall, second district that formation communicates with the said second backflow canal unit between said second dividing wall and said first dividing wall is provided with training wall on the said pool wall near the downstream of said water-in; Said first district is divided into first biological selecting area and the anaerobic zone that is connected by said training wall; Said anaerobic zone communicates with said first backflow canal unit and said water-in through said first biological selecting area, all offers perforation on said first dividing wall and said second dividing wall, communicates with said second biological selecting area through the said anaerobic zone of perforation on said second dividing wall; The said oxygen-starved area of perforation through on said first dividing wall communicates with said aerobic zone; Said first dividing wall is provided with training wall near the downstream of the perforation on said second dividing wall, said second district is divided into second biological selecting area and the oxygen-starved area that is connected by this training wall, and said oxygen-starved area communicates with perforation on said first backflow canal unit and said second dividing wall through said second biological selecting area.

Preferably, be used to form on said first backflow canal unit or the unitary pool wall of the said second backflow canal position relative with first dividing wall and be provided with training wall, the training wall on training wall on the said pool wall and said first dividing wall interlaces and is arranged.

Preferably, in the said connecting hole backflow sleeve pipe is housed.

Because technique scheme utilization; The present invention compared with prior art has advantage and effect: first dividing wall, second dividing wall, training wall are set in the device pond body is divided into first biological selecting area, second biological selecting area, anaerobic zone, oxygen-starved area, aerobic zone, the first backflow canal unit and the second backflow canal unit, be provided with the reflux pump that is used to order about drainage flow in the aerobic zone, the first backflow canal unit and the second backflow canal unit are connected with aerobic zone through connecting hole respectively; All offer perforation on first dividing wall and second dividing wall; Anaerobic zone communicates through the perforation on second dividing wall with second biological selecting area, and the oxygen-starved area communicates through the perforation on first dividing wall with aerobic zone, adopts after this structure; The floor space of device is less; Under the effect of aerobic zone reflux pump, sewage flows through each treatment zone in device successively fast, has reduced the water conservancy residence time; Improved sewage treating efficiency; And, practiced thrift the energy greatly because flowing fast of sewage do not need the working power whipping device promptly to reach the effect of driving away air at anaerobic zone and oxygen-starved area.

Description of drawings:

Accompanying drawing 1 is a schematic top plan view of the present invention;

Accompanying drawing 2 is looked synoptic diagram for master of the present invention.

Embodiment:

Referring to shown in Figure 1, the first closed dividing wall 8 of annular is set in the treatment tank with water-in 23, the first closed dividing wall 8 of annular centers on and forms aerobic zone 5; Be provided with membrane bioreactor 24 in the aerobic zone 5 and be used to order about the reflux pump 25 of drainage flow, be provided with and intercept wall 12, offer connecting

hole

11,12 at first dividing wall 8 that intercepts wall 12 both sides with a side of first dividing wall 8 and two the disconnected first backflow canal unit 6 of backflow canal blocking-up formation and the second backflow canal unit 7 of pond body pool wall double team formation; Be respectively applied for and guarantee being communicated with of the first backflow canal unit 6 and the second backflow canal unit 7 and aerobic zone, the circulation of backflow sleeve pipe with more convenient sewage is installed in connecting

hole

11,12 usually, training wall 13 is set near the downstream of water-in on the pool wall 23; Between other sides of first dividing wall 8 and pond body pool wall, the side that second dividing wall, 9, the second dividing walls, 9 one ends are arranged on first dividing wall 8 is set, the other end is arranged on the pool wall; Offer perforation 15 on second dividing wall; First dividing wall 8 forms first biological selecting area of being separated by training wall 13 1 that is connected and is connected with the first backflow canal unit 6 with anaerobic zone 2, the first biological selecting areas 1 being provided with near the downstream of the perforation 15 on second dividing wall 9 between training wall 16, the second dividing walls 9 and the pool wall; Form second biological selecting area of separating by training wall 16 3 and oxygen-starved area 4 that be connected between second dividing wall 9 and first dividing wall 8; Second biological selecting area 3 is connected with the second backflow canal unit 7 simultaneously, and 15 is connected with anaerobic zone 2 through boring a hole, simultaneously; Also offer perforation 14 on first dividing wall 8 and guarantee being communicated with of oxygen-starved area 4 and aerobic zone 5; In order sewage to be played better guide functions, on the pool wall that forms the first backflow canal unit 6 or the second backflow canal unit 7 position relative, be provided with

training wall

17,18,19,20,21,22 usually, the setting of staggering relatively of

training wall

18,21 on the pool wall and the

training wall

17,19,20,22 on first dividing wall with first dividing wall 8; During the work of rotary type dephosphorization denitrogenation film biological treatment device; Pending sewage is mixed with the mud mixed liquid that comes the first backflow canal unit 6 by first biological selecting area 1 in water inlet pipe 23 bleeders, and sewage gets into anaerobic zone 2 through the guiding of training wall 13; This moment, the anaerobic type bacterial activity was stronger; React with the chemical substance in the sewage, the sewage releases phosphorus, partial organic substances is by ammonification simultaneously; Sewage after the releases phosphorus continues to flow; Through 15 entering, second biological selecting area 3 of boring a hole, the mixed solution of coming through inner circulating reflux with the second backflow canal unit 7 mixes, and gets into oxygen-starved areas 4 through training wall 16 guiding; This moment, the facultative type bacterial activity was stronger; The nitric nitrogen or the nitrite nitrogen of coming through inner circulating reflux are reduced to nitrogen under the effect of oxygen-starved area 4 denitrifying bacteriums, a part of denitrification dephosphorization, most NO can be carried out in oxygen-starved area 4 simultaneously _X-N is converted into N2 as electron acceptor(EA) and is removed, and the sewage after the denitrogenation continues to flow, through the 14 entering aerobic zones 5 of boring a hole; Aerobic zone 5 adopts perforated pipe aerating regulation; Sewage reaches a good complete mixed effect, and builds competent oxygen atmosphere through the aeration interaction energy, and the activity of aerobic bacteria is reacted than the chemical substance in strong and the sewage; At aerobic zone 5; COD, nitrated ammonia nitrogen removal, Absorption of Phosphorus, the mud-water separation process removed accomplished in effects such as the membrane sepn of sewage through membrane bioreactor 24, bio-oxidation, microbiological deterioration, biological absorption, and simultaneously, part polymer hardly degraded organic substance, fine particles and part bacterium, pathogenic agent are removed; BOD in the sewage (COD) also obtains removing through membrane sepn and biological action; Phosphorus then obtains removing through the discharging excess sludge, and the mud mixed liquid after the processing is divided into two portions, and the backflow sleeve pipe of a part in connecting hole 11 refluxes; In the first backflow canal unit 6, getting into first biological selecting area 1 under the guiding of

training wall

17,18,19 mixes with treatment sewage from water inlet pipe 23 and carries out internal recycle; The backflow sleeve pipe of another part in connecting hole 12 refluxes, and carries out internal recycle entering oxygen-starved area 4 after in the second backflow canal unit 7, getting into second biological selecting area 3 guiding of

training wall

20,21,22 under and sewage from anaerobic zone 2 mixing, NO in a large number in the mixed solution ₃-N or NO ₂-N and other oxynitride will be removed by 4 denitrifications in the oxygen-starved area.

Referring to shown in Figure 2; Show between anaerobic zone 2 and the oxygen-starved area 4 with the form of side-looking cross-sectional schematic and to be connected via second biological selecting area 3 through the perforation 15 that is opened on second dividing wall 9; Be connected through the perforation 14 that is opened on first dividing wall between oxygen-starved area 4 and the aerobic zone 5, membrane bioreactor 24 is arranged in the aerobic zone 5.

Claims

1. rotary type dephosphorization denitrogenation film biological treatment device; Comprise pond body with water-in; It is characterized in that: be provided with the first closed dividing wall of annular in the body of said pond; The first closed dividing wall of said annular centers on and forms aerobic zone; Be provided with membrane bioreactor in the said aerobic zone and be used to order about the reflux pump of drainage flow; Form the backflow canal between one side of first dividing wall that said annular is closed and the pool wall of said pond body; Be provided with the obstruct wall between one side of first dividing wall that said annular is closed and the pool wall of said pond body; Said backflow canal is formed two the disconnected first backflow canal unit and the second backflow canal unit by said obstruct wall blocking-up, and a side of first dividing wall that said annular is closed offers at least one connecting hole respectively on the both sides of said obstruct wall, and the said first backflow canal unit and the second backflow canal unit are connected with said aerobic zone through said connecting hole respectively; Be provided with second dividing wall between other sides of first dividing wall that said annular is closed and the pool wall of said pond body; One end of said second dividing wall is arranged on a side of the first closed dividing wall of said annular, and the other end is arranged on the said pool wall, first district that formation communicates with the said first backflow canal unit between said second dividing wall and the said pool wall; Form second district that communicates with the said second backflow canal unit between said second dividing wall and said first dividing wall; Near the downstream of said water-in, be provided with training wall on the said pool wall, said first district is divided into first biological selecting area and the anaerobic zone that is connected by said training wall, and said anaerobic zone communicates with said first backflow canal unit and said water-in through said first biological selecting area; Said first dividing wall is provided with training wall near the downstream of the perforation on said second dividing wall; Said second district is divided into second biological selecting area and the oxygen-starved area that is connected by this training wall, communicates with said aerobic zone through the said oxygen-starved area of perforation on said first dividing wall, all offers perforation on said first dividing wall and said second dividing wall; Communicate with said second biological selecting area through the said anaerobic zone of perforation on said second dividing wall, said oxygen-starved area communicates with perforation on said first backflow canal unit and said second dividing wall through said second biological selecting area.

2. film biological treatment device according to claim 1; It is characterized in that: be used to form on said first backflow canal unit or the unitary pool wall of the said second backflow canal position relative with first dividing wall and be provided with training wall, the training wall on training wall on the said pool wall and said first dividing wall interlaces and is arranged.

3. film biological treatment device according to claim 1 is characterized in that: the backflow sleeve pipe is housed in the said connecting hole.

4. the process method of using film biological treatment device as claimed in claim 1 to dispose of sewage is characterized in that: this process method may further comprise the steps:

(1) said sewage gets into intravital first biological selecting area in said pond through said water-in, after mixing from the unitary blended liquid phase of the said first backflow canal, gets into said anaerobic zone through said training wall;

The sewage mixed solution of (2) flowing through behind the said anaerobic zone gets into said second biological selecting area through the perforation on said second dividing wall; Said second biological selecting area with mix from the unitary blended liquid phase of the said second backflow canal after, get into said oxygen-starved area through said training wall;

(3) the flow through sewage mixed solution of said oxygen-starved area gets into said aerobic zone through the perforation on said first dividing wall; Through the membrane bioreactor suction water outlet of said aerobic zone, the sewage mixed solution of said aerobic zone is back to said first backflow canal unit and the said second backflow canal unit through said reflux pump through said connecting hole.