CN107487960A - A kind of sewage disposal device and method - Google Patents
A kind of sewage disposal device and method Download PDFInfo
- Publication number
- CN107487960A CN107487960A CN201710915204.1A CN201710915204A CN107487960A CN 107487960 A CN107487960 A CN 107487960A CN 201710915204 A CN201710915204 A CN 201710915204A CN 107487960 A CN107487960 A CN 107487960A
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- CN
- China
- Prior art keywords
- regulating reservoir
- biological reaction
- membrane biological
- sewage
- reaction pond
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
Abstract
The present invention discloses a kind of sewage disposal device, and the equipment includes：Grid, regulating reservoir, elevator pump, sludge reflux pump, membrane biological reaction pond, air blower, self priming pump and sterilization pool；Wherein, the regulating reservoir is provided with water inlet and sludge outlet, and the grid is located at the water inlet of regulating reservoir, and the regulating reservoir bottom is connected by pipeline with the air outlet of air blower；Film reaction group and aerator, the aerator is set to be located at the lower section of the film reaction group inside the membrane biological reaction pond, aerator is connected by pipeline with blower outlet；The regulating reservoir is connected by sludge reflux pump and elevator pump with membrane biological reaction pond, and the film reaction group in the membrane biological reaction pond is connected by self priming pump with sterilization pool.Sewage disposal system technique of the present invention is simple, and treatment effeciency is high, and secondary pollution is few, and organic matter volumetric loading is high, and hydraulic detention time is short, and technological process is short, and maintenance is simple and convenient, saves human cost, drastically increases treatment effeciency and stability.
Description
Technical field
The present invention relates to technical field of sewage.More particularly, to a kind of sewage disposal device and method.
Background technology
Small towns sewage source is complicated at present, including：Concentrate big-and-middle village sanitary sewage, big-and-middle-sized livestock and poultry cultivation sewage and township
Town enterprise sewage.The derivative of existing process processing equipment, mostly urban sewage treating device, it can not tackle in actual use
High, the unstable water of small towns sludge concentration, nutriment be low, biochemical deficiency, and the present situation of secondary pollution seepage is operable
Property is not strong, and utilization rate is low.
Accordingly, it is desirable to provide a kind of sewage disposal device and method for small towns sewage feature.
The content of the invention
It is an object of the present invention to provide a kind of sewage disposal device, and the plant maintenance is simple and convenient, full-automatic behaviour
Control, human cost is saved, sewage disposal can be efficiently accomplished.
It is another object of the present invention to provide a kind of sewage water treatment method, this method technique is simple, and treatment effeciency is high.
To reach above-mentioned purpose, the present invention uses following technical proposals：
The invention provides a kind of sewage disposal device, the equipment includes：
Grid, for entering regulating reservoir after sewage is carried out into solid-liquid screening, to prevent bulk contaminants clog equipment；
Regulating reservoir, for regulating water quality and pollutant precipitation is removed, effectively reduce SS；
Elevator pump, membrane biological reaction pond is imported into for the sewage after regulating reservoir is handled；
Sludge reflux pump, the sludge for being obtained after membrane biological reaction pond is handled imported into regulating reservoir；
Membrane biological reaction pond, the sewage for being obtained after handling regulating reservoir are handled；
Air blower, for for regulating reservoir and membrane biological reaction pond oxygenation, aeration, to prevent from depositing；
Self priming pump, for the sewage after being handled in membrane biological reaction pond to be imported into sterilization pool；
Sterilization pool, for being carried out disinfection to the sewage after processing；
Wherein, the regulating reservoir is provided with water inlet and sludge outlet, and the grid is located at the water inlet of regulating reservoir, institute
Regulating reservoir bottom is stated to connect with the air outlet of air blower；Film reaction group and aerator, institute are set inside the membrane biological reaction pond
The lower section that aerator is located at the film reaction group is stated, aerator is connected by pipeline with blower outlet；The regulating reservoir leads to
Sludge reflux pump and elevator pump is crossed to connect with membrane biological reaction pond, the film reaction group in the membrane biological reaction pond by self priming pump with
Sterilization pool connects.
Preferably, the inclination angle of the grid is 45 °~65 °.
Preferably, the regulating reservoir uses advection pool structure, the high H=5.5m in pond, available depth h=5m, the laying of four walls
HDPE antiseepage films.
Preferably, the size in the membrane biological reaction pond is 4mx4mx5.5m；Four walls lay HDPE antiseepage films.
Preferably, the ultrafiltration membrane material of the film reaction group is polytetrafluoroethylene (PTFE), U-shape structure, tensile strength 85N, pH value
0-14,0.1-0.2 μm of membrane aperture, film wire percent opening 90%.
Preferably, the aerator is silica gel membrane tube.
Preferably, the air blower is rotary blower.
Invention further provides a kind of sewage water treatment method, comprise the following steps：
1) sewage enters regulating reservoir by grid separation progress solid-liquid screening；
2) water quality and precipitation pollutant is adjusted in regulating reservoir, and pollutant is discharged from sludge outlet；
3) sewage after elevator pump handles regulating reservoir imported into membrane biological reaction pond；
4) membrane biological reaction pond is handled the sewage obtained after regulating reservoir processing；The operation power of the film reaction group
For 0.75kw.h, flow 0.3-0.8m3/ d, sludge concentration 20000mg/l are continuously run；Filter type is negative-pressure ward, maximum
Transmembrane pressure -65, filtration time 9min；
5) sludge obtained after membrane biological reaction pond is handled imported into regulating reservoir by sludge reflux pump, is obtained after processing
Sewage sterilization pool is imported into by self priming pump；
6) sterilization pool is carried out disinfection to the sewage after processing, and the water after sterilization is discharged；
7) in whole processing procedure, it is oxygenated by air blower to regulating reservoir and the aerator in membrane biological reaction pond, aeration.
Further, 0.5~0.8m/s of water velocity in the grid.
Further, dwell time of sewage T=6h in the regulating reservoir, inflow Q=16.7m3/h。
Further, the pressure of the air blower is 0.1-0.5kgf/cm2。
Further, the throughput 5-10m of the aerator3/h。
Beneficial effects of the present invention are as follows：
Sewage disposal system of the present invention has that technique is simple, and treatment effeciency is high, and secondary pollution is small, organic matter volumetric loading
Height, hydraulic detention time is short, and technological process is short, safeguard it is simple and convenient, save human cost the advantages that, overcome traditional biological filter
The shortcomings of Chi Yi is blocked, drastically increases treatment effeciency and stability.
Brief description of the drawings
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows the structural representation of sewage disposal device of the present invention.
Fig. 2 shows the section of structure of regulating reservoir of the present invention.
Fig. 3 shows the section of structure of inventive film biological reaction pool.
In accompanying drawing, 1, grid, 2, regulating reservoir, 21, delivery port, 22, sludge outlet, 3, elevator pump, 4, sludge reflux pump, 5,
Membrane biological reaction pond, 51, film reaction group, 52, aerator, 6, air blower, 7, self priming pump, 8, sterilization pool
Embodiment
In order to illustrate more clearly of the present invention, the present invention is done further with reference to preferred embodiments and drawings
It is bright.Similar part is indicated with identical reference in accompanying drawing.It will be appreciated by those skilled in the art that institute is specific below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
A kind of sewage disposal device of the present invention, as shown in Figure 1,2 and 3, the equipment includes：Grid 1, regulating reservoir 2, lifting
Pump 3, sludge reflux pump 4, membrane biological reaction pond 5, air blower 6, self priming pump 7 and sterilization pool 8；The regulating reservoir 2 is provided with into water
Mouth 21 and sludge outlet 22, the grid 1 are located at the water inlet 21 of regulating reservoir 2, sewage is entered tune after carrying out solid-liquid screening
Pond 2 is saved, to prevent bulk contaminants clog equipment, the bottom of regulating reservoir 2 connects with the air outlet of air blower 6, is regulating reservoir 2
Oxygenation, aeration, to prevent from depositing；The inside of membrane biological reaction pond 5 sets film reaction group 51 and aerator 52, the aerator
52 are located at the lower section of the film reaction group 51, and aerator 52 is connected by pipeline with the air outlet of air blower 6, is membrane biological reaction
Pond 5 is oxygenated, is aerated, to prevent from depositing；The regulating reservoir 2 is connected by sludge reflux pump 4 and elevator pump 3 with membrane biological reaction pond 5
It is logical, cause the sewage that the sludge that membrane biological reaction pond 5 obtains after handling is imported into after regulating reservoir 2 and the processing of regulating reservoir 2 to lead respectively
Enter to membrane biological reaction pond 5；The film reaction group 51 in the membrane biological reaction pond 5 is connected by self priming pump 7 with sterilization pool 8, by film
Sewage after being handled in biological reaction pool 5 imports sterilization pool 8.
In the present invention, the inclination angle of the grid 1 is 45 °~65 °；The regulating reservoir 2 uses advection pool structure, the high H in pond
=5.5m, available depth h=5m, four walls laying HDPE antiseepage films；The size in the membrane biological reaction pond 5 is 4mx4mx5.5m,
Four walls lay HDPE antiseepage films；The ultrafiltration membrane material of the film reaction group 51 is polytetrafluoroethylene (PTFE), U-shape structure, tensile strength
85N, pH value 0-14,0.1-0.2 μm of membrane aperture, film wire percent opening 90%；The aerator 52 is silica gel membrane tube；The air blower
6 be rotary blower 6.
Using the method for the said equipment processing sewage, comprise the following steps：
1) sewage is separated by grid 1 carries out solid-liquid screening and enters regulating reservoir 2, and the water velocity 0.5 in the grid 1~
0.8m/s；
2) water quality and precipitation pollutant is adjusted in regulating reservoir 2, and pollutant is discharged from sludge outlet 22；The tune
Save dwell time of sewage T=6h, inflow Q=16.7m in pond 23/h；
3) sewage after elevator pump 3 handles regulating reservoir 2 imported into membrane biological reaction pond 5；
4) membrane biological reaction pond 5 is handled the sewage obtained after the processing of regulating reservoir 2；The operation of the film reaction group 51
Power is 0.75kw.h, flow 0.3-0.8m3/ d, sludge concentration 20000mg/l are continuously run；Filter type is negative-pressure ward,
Maximum transmembrane pressure -65, filtration time 9min；
5) sludge obtained after membrane biological reaction pond 5 is handled imported into regulating reservoir 2 by sludge reflux pump 4, after processing
Obtained sewage imported into sterilization pool 8 by self priming pump 7；
6) sterilization pool 8 is carried out disinfection to the sewage after processing, and the water after sterilization is discharged；
7) in whole processing procedure, be oxygenated by air blower 6 to regulating reservoir 2 and the aerator in membrane biological reaction pond 5 52,
Aeration；The throughput of the aerator 52 is 5-10m3/ h, the pressure of the air blower 6 is 0.1-0.5kgf/cm2。
It is as shown in table 1 according to sampling monitoring result, disengaging water quality.
The sewage quality situation of table 1
| Index (mg/l) | pH | COD | BOD5 | SS | TN | Ammonia nitrogen | TP |
| Water inlet | 6-9 | 350-409 | 229-258 | 190-254 | 30-40 | 26.8 | 2.9 |
| Water outlet (average value) | 6.5 | 42 | 11.1 | 16 | 3 | 0.3 | 0.4 |
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention, for those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms, all embodiments can not be exhaustive here, it is every to belong to this hair
Row of the obvious changes or variations that bright technical scheme is extended out still in protection scope of the present invention.
Claims (10)
1. a kind of sewage disposal device, it is characterised in that the equipment includes：Grid, regulating reservoir, elevator pump, sludge reflux pump,
Membrane biological reaction pond, air blower, self priming pump and sterilization pool；
Wherein, the regulating reservoir is provided with water inlet and sludge outlet, and the grid is located at the water inlet of regulating reservoir, the tune
Section bottom of pond portion is connected by pipeline with the air outlet of air blower；Film reaction group and aeration are set inside the membrane biological reaction pond
Device, the aerator are located at the lower section of the film reaction group, and aerator is connected by pipeline with blower outlet；The regulation
Pond is connected by sludge reflux pump and elevator pump with membrane biological reaction pond, and the film reaction group in the membrane biological reaction pond passes through self-priming
Pump connects with sterilization pool.
2. sewage disposal device according to claim 1, it is characterised in that the inclination angle of the grid is 45 °~65 °.
3. sewage disposal device according to claim 1, it is characterised in that the regulating reservoir uses advection pool structure, pond
High H=5.5m, available depth h=5m, four walls laying HDPE antiseepage films.
4. sewage disposal device according to claim 1, it is characterised in that the wall of membrane biological reaction pond four lays HDPE
Antiseepage film；The ultrafiltration membrane material of the film reaction group is polytetrafluoroethylene (PTFE), U-shape structure, tensile strength 85N, pH value 0-14, fenestra
0.1-0.2 μm of footpath, film wire percent opening 90%.
5. sewage disposal device according to claim 1, it is characterised in that the aerator is silica gel membrane tube.
6. sewage disposal device according to claim 1, it is characterised in that the air blower is rotary blower.
A kind of 7. method for handling sewage using any described equipment of claim 1-6, it is characterised in that including following step
Suddenly：
1) sewage enters regulating reservoir by grid separation progress solid-liquid screening；
2) water quality and precipitation pollutant is adjusted in regulating reservoir, and pollutant is discharged from sludge outlet；
3) sewage after elevator pump handles regulating reservoir imported into membrane biological reaction pond；
4) membrane biological reaction pond is handled the sewage obtained after regulating reservoir processing；The operation power of the film reaction group is
0.75kw.h, flow 0.3-0.8m3/ d, sludge concentration 20000mg/l are continuously run；Filter type is negative-pressure ward, it is maximum across
Mould poor -65, filtration time 9min；
5) sludge obtained after membrane biological reaction pond is handled imported into regulating reservoir, the dirt obtained after processing by sludge reflux pump
Water imported into sterilization pool by self priming pump；
6) sterilization pool is carried out disinfection to the sewage after processing, and the water after sterilization is discharged；
7) in whole processing procedure, it is oxygenated by air blower to regulating reservoir and the aerator in membrane biological reaction pond, aeration.
8. according to the method for claim 1, it is characterised in that 0.5~0.8m/s of water velocity in the grid.
9. according to the method for claim 1, it is characterised in that dwell time of sewage T=6h, inflow in the regulating reservoir
Q=16.7m3/h。
10. according to the method for claim 1, it is characterised in that the pressure of the air blower is 0.1-0.5kgf/cm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710915204.1A CN107487960A (en) | 2017-09-30 | 2017-09-30 | A kind of sewage disposal device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710915204.1A CN107487960A (en) | 2017-09-30 | 2017-09-30 | A kind of sewage disposal device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107487960A true CN107487960A (en) | 2017-12-19 |
Family
ID=60654342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710915204.1A Pending CN107487960A (en) | 2017-09-30 | 2017-09-30 | A kind of sewage disposal device and method |
Country Status (1)
| Country | Link |
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| CN (1) | CN107487960A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117142638A (en) * | 2023-10-16 | 2023-12-01 | 南京宁通智能交通技术研究院有限公司 | Self-refluxing tower type efficient sewage treatment equipment with multiple filtering functions |
| CN117142638B (en) * | 2023-10-16 | 2024-03-29 | 南京宁通智能交通技术研究院有限公司 | Self-refluxing tower type efficient sewage treatment equipment with multiple filtering functions |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781058A (en) * | 2009-11-26 | 2010-07-21 | 宇星科技发展(深圳)有限公司 | AO-MBR sewage treatment process and device |
| CN205295094U (en) * | 2016-01-08 | 2016-06-08 | 山西绿洁环保有限公司 | Microminiature treatment of domestic sewage of coal bed gas gas gathering station integrated system |
| CN206266394U (en) * | 2016-10-27 | 2017-06-20 | 北京华福环境工程科技有限公司 | Integrated scattered domestic sewage treatment device |
| CN206337126U (en) * | 2016-12-30 | 2017-07-18 | 天津清华德人环境工程有限公司 | A kind of domestic sewage treatment device |
| CN206384990U (en) * | 2016-12-29 | 2017-08-08 | 台州仙苑市政园林工程有限公司 | A kind of advanced treatment system for recycling municipal sewage |
| CN206396002U (en) * | 2016-10-25 | 2017-08-11 | 厦门绿星环保技术有限公司 | A kind of biological film sewage treatment system |
-
2017
- 2017-09-30 CN CN201710915204.1A patent/CN107487960A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781058A (en) * | 2009-11-26 | 2010-07-21 | 宇星科技发展(深圳)有限公司 | AO-MBR sewage treatment process and device |
| CN205295094U (en) * | 2016-01-08 | 2016-06-08 | 山西绿洁环保有限公司 | Microminiature treatment of domestic sewage of coal bed gas gas gathering station integrated system |
| CN206396002U (en) * | 2016-10-25 | 2017-08-11 | 厦门绿星环保技术有限公司 | A kind of biological film sewage treatment system |
| CN206266394U (en) * | 2016-10-27 | 2017-06-20 | 北京华福环境工程科技有限公司 | Integrated scattered domestic sewage treatment device |
| CN206384990U (en) * | 2016-12-29 | 2017-08-08 | 台州仙苑市政园林工程有限公司 | A kind of advanced treatment system for recycling municipal sewage |
| CN206337126U (en) * | 2016-12-30 | 2017-07-18 | 天津清华德人环境工程有限公司 | A kind of domestic sewage treatment device |
Non-Patent Citations (2)
| Title |
|---|
| 周霞等: "《水污染控制技术》", 30 April 2014, 广东高等教育出版社 * |
| 王湛等: "《膜分离技术》", 31 August 2006, 化学工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117142638A (en) * | 2023-10-16 | 2023-12-01 | 南京宁通智能交通技术研究院有限公司 | Self-refluxing tower type efficient sewage treatment equipment with multiple filtering functions |
| CN117142638B (en) * | 2023-10-16 | 2024-03-29 | 南京宁通智能交通技术研究院有限公司 | Self-refluxing tower type efficient sewage treatment equipment with multiple filtering functions |
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