CN106045023A - System and method for sewage treatment - Google Patents
System and method for sewage treatment Download PDFInfo
- Publication number
- CN106045023A CN106045023A CN201610612424.2A CN201610612424A CN106045023A CN 106045023 A CN106045023 A CN 106045023A CN 201610612424 A CN201610612424 A CN 201610612424A CN 106045023 A CN106045023 A CN 106045023A
- Authority
- CN
- China
- Prior art keywords
- sewage
- regulating reservoir
- liquid level
- bioreactor
- tubular type
- 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
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention belongs to the technical field of sewage treatment, and particularly relates to a system and a method for sewage treatment. The system for sewage treatment comprises a regulation tank, a bioreactor, a clean water tank, a lifting pump, a circulating pump and a pipe type ultrafiltration/microfiltration membrane system, wherein the regulation tank is used for collectingsewage, and the lifting pump is respectively connected with the regulation tank and the bioreactor, and is used for pumping the sewage in the regulation tank into the bioreactor to be treated; the circulating pump is respectively connectedwith the bioreactor and thepipe type ultrafiltration/microfiltration membrane system, and is used for pumping the sewage treated by the bioreactor into thepipe type ultrafiltration/microfiltration membrane system to be filtered; the clean water tank is connected with the pipe type ultrafiltration/microfiltration membrane system, and is used for storing clean water filtered by the pipe type ultrafiltration/microfiltration membrane. The system has the advantages that the quality of drained water is good, the process parameters can be easily controlled, the equipment is compact, the land occupation area is small, and the like.
Description
Technical field
The invention belongs to technical field of sewage, particularly relate to a kind of sewage disposal system and method.
Background technology
It is well known that the maximally effective process equipment processing decentralized type sewage is " membrane bioreactor
(MembraneBioreactor, MBR) ", membrane bioreactor (MBR) is a kind of by film separation unit and biological processing unit
The new type water treatment technology combined, is widely used in water treatment field, and its quantity is increasing, and scale constantly expands
Greatly, the water environment pollution situation alleviating China the most serious is served highly important effect.
Up to the present, domestic and international various types of membrane bioreactors are all immersions, i.e. use either in
Hollow fiber membrane module or plate film assembly, be all that submergence is arranged in biological reaction pool sewage.The function of membrane module is by
Solid-liquid separation, eliminates the second pond of traditional biological processing system, the sludge reflux retained to bioreactor, arranges through outside water
Or reuse.
The distinguishing feature of immersion MBR is:
1) effluent quality is good, and float and turbidity are close to zero；
2) sludge age is long, improves removal ability and the denitrogenation dephosphorizing function of hardly degraded organic substance；
3) floor space is greatly reduced, saves construction investment；
4) run under low sludge loading, organic residual sludge yield nearly zero.
But, immersion MBR there is also following deficiency:
1) hollow fiber film assembly ceaselessly swung under the washing away of aeration gas flow, and at the encapsulation of two ends, stress is big and the amplitude of oscillation is little,
Mud gathers soon, easy fracture of wire；
2) bottom of plate film assembly easily settled sludge, and supersonic welding wiring is easily ftractureed.
Summary of the invention
The invention provides a kind of sewage disposal system and method, it is intended to solve in prior art the most to a certain extent
One of above-mentioned technical problem.
The present invention is achieved in that a kind of sewage disposal system, including regulating reservoir, bioreactor, clear water reserviors, lifting
Pump, circulating pump and tubular type surpass/microfiltration membrane system；Described regulating reservoir is used for collecting sewage, described elevator pump respectively with regulating reservoir and
Bioreactor connects, and carries out sewage disposal for the sewage in regulating reservoir is pumped into bioreactor；Described circulating pump is respectively
/ microfiltration membrane system super with bioreactor and tubular type is connected, for the sewage after described bioreactor for treatment is pumped into tubular type
Super/microfiltration membrane system carries out filtration treatment, and described clear water reserviors surpass with tubular type/and microfiltration membrane system is connected, it is used for storing described tubular type
Clear water after super/microfiltration membrane system filtration.
The technical scheme that the embodiment of the present invention is taked also includes: described bioreactor is external membrane bioreactor,
Described tubular type is super/and microfiltration membrane system is located at the outside of bioreactor.
The technical scheme that the embodiment of the present invention is taked also includes: described bioreactor is sequentially provided with hydrolysis acidification pool, connects
Touching oxidation pond and circulation concentration basin, the water inlet of described elevator pump is connected with the outlet of regulating reservoir, the water outlet of described elevator pump
Mouthful being connected with the water inlet of hydrolysis acidification pool, the water inlet of described circulating pump is connected with the outlet circulating concentration basin, described in follow
The outlet of ring pump and tubular type be super/and the water inlet of microfiltration membrane system is connected.
The technical scheme that the embodiment of the present invention is taked also includes: be additionally provided with the first liquid level control switch in described regulating reservoir,
Described first liquid level control switch is connected with elevator pump, when the sewage level in regulating reservoir rises to preset high water level, described
First liquid level control switch controls elevator pump and starts, and the sewage in regulating reservoir is pumped into hydrolysis acidification pool；When the dirt in regulating reservoir
When water liquid level drops to preset low water level, described first liquid level control switch controls elevator pump and quits work.
The technical scheme that the embodiment of the present invention is taked also includes: is provided with the second Liquid level in described circulation concentration basin and opens
Closing, described second liquid level control switch is connected with circulating pump；When the sewage level in described circulation concentration basin rises to preset height
During water level, described second liquid level control switch controls circulating pump and starts, and described tubular type is super/and microfiltration membrane system brings into operation；Work as institute
Stating the sewage level in circulation concentration basin when dropping to preset low water level, described second liquid level control switch controls circulating pump and stops
Work.
The technical scheme that the embodiment of the present invention is taked also includes: described contact-oxidation pool is built with porous ceramic grain.
The technical scheme that the embodiment of the present invention is taked also includes: and described tubular type is super/and microfiltration membrane system is that Kynoar burns
Form type.
Another technical scheme that the embodiment of the present invention is taked is: a kind of sewage water treatment method, comprises the following steps:
Step a: collect sewage by regulating reservoir, and by elevator pump, the sewage in regulating reservoir is pumped into bioreactor and carry out dirt
Water processes；
Step b: by circulating pump the sewage after described bioreactor for treatment pumped into tubular type super/microfiltration membrane system filters
Process；
Step c: by clear water reserviors store described tubular type super/microfiltration membrane system filter after clear water.
The technical scheme that the embodiment of the present invention is taked also includes: be additionally provided with the first liquid level control switch in described regulating reservoir,
When the sewage level in regulating reservoir rises to preset high water level, control elevator pump by the first liquid level control switch and start, when
When sewage level in regulating reservoir drops to preset low water level, control elevator pump by the first liquid level control switch and quit work.
The technical scheme that the embodiment of the present invention is taked also includes: described bioreactor includes hydrolysis acidification pool, contact oxygen
Change pond and circulation concentration basin, in described circulation concentration basin, be provided with the second liquid level control switch, the sewage liquid in circulation concentration basin
When position rises to preset high water level, controlling circulating pump by the second liquid level control switch and start, described tubular type surpasses/microfiltration membrane system
Bring into operation；When the sewage level circulated in concentration basin drops to preset low water level, described second liquid level control switch controls
Circulating pump quits work.
Relative to prior art, have the beneficial effects that produced by the embodiment of the present invention: at the sewage of the embodiment of the present invention
Reason system and method by external membrane bioreactor and be located at tubular type bioreactor outside surpass/microfiltration membrane system carries out
Sewage disposal, the advantage remaining immersion MBR, overcome the deficiency of immersion MBR simultaneously, have that effluent quality is good, technique
The advantages such as parameter is easily controllable, facility compact, occupation of land are few；Meanwhile, devising automaton, operational management is simple, in dirt
In water treatment procedure, it is easy to accomplish automatically control.
Accompanying drawing explanation
Fig. 1 is the structural representation of the sewage disposal system of the embodiment of the present invention；
Fig. 2 is the flow chart of the sewage water treatment method of the embodiment of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, not
For limiting the present invention.
Refer to Fig. 1, be the structural representation of the sewage disposal system of the embodiment of the present invention.The sewage of the embodiment of the present invention
Processing system include regulating reservoir 10, elevator pump 20, bioreactor 30, circulating pump 40, tubular type super/microfiltration membrane system 50 and clear water
Pond 60；Wherein, bioreactor 30 is external membrane bioreactor, and tubular type is super/and microfiltration membrane system 50 is located at bioreactor
The outside of 30.Bioreactor 30 is sequentially provided with hydrolysis acidification pool 31, contact-oxidation pool 32 and circulation concentration basin 33, elevator pump 20
Water inlet be connected with the outlet of regulating reservoir 10, the outlet of elevator pump 20 is connected with the water inlet of hydrolysis acidification pool 31.Follow
The water inlet of ring pump 40 is connected with the outlet of circulation concentration basin 33, and the outlet of circulating pump 40 surpasses/microfiltration membrane system with tubular type
The water inlet of 50 connects, and clear water reserviors 60 surpass with tubular type/and microfiltration membrane system 50 is connected.
Specifically, regulating reservoir 10 is used for collecting sewage；The first liquid level control switch (not shown) it is additionally provided with in regulating reservoir 10,
First liquid level control switch is connected with elevator pump 20, when the sewage level in regulating reservoir 10 rises to preset high water level, passes through
First liquid level control switch controls elevator pump 20 and starts, and the sewage in regulating reservoir 10 is pumped into hydrolysis acidification pool 31, hydrolysis acidification
Sewage self-flowing in pond 31 enters in contact-oxidation pool 32 and circulation concentration basin 33.When the sewage level in regulating reservoir 10 drops to pre-
If during low water level, control elevator pump 20 by the first liquid level control switch and quit work.
The second liquid level control switch (not shown), the second liquid level control switch and circulating pump 40 it is provided with in circulation concentration basin 33
Connect；When the sewage level circulated in concentration basin 33 rises to preset high water level, control to follow by the second liquid level control switch
Ring pump 40 starts, and tubular type is super/and microfiltration membrane system 50 brings into operation, by circulating pump 40, the sewage in circulation concentration basin 33 pumped into
Tubular type is super/microfiltration membrane system 50 carries out filtration treatment, and through tubular type super/clear water that filters of microfiltration membrane system 50 flows into clear water reserviors 60
Carry out discharging or reuse, through tubular type super/microfiltration membrane system 50 in concentrate recirculation enter to circulate in concentration basin 33；Mud mixture is wadded a quilt with cotton
The solidifying bottom being deposited to circulate concentration basin 33, can periodic cleaning, enter pressure filter and carry out mud-water separation.When in circulation concentration basin 33
Sewage level when dropping to preset low water level, control circulating pump 40 by the second liquid level control switch and quit work.Work as circulation
When sewage level in concentration basin 33 rises to preset surcharge water level, elevator pump 20 quits work, equipment downtime.When circulation concentrates
When sewage level in pond 33 drops to default ultra low water level, equipment downtime.
In embodiments of the present invention, contact-oxidation pool 32 is suspended in sewage built with porous ceramic grain, porous ceramic grain；Dissolve
Oxygen (DO) concentration is: hydrolysis acidification pool ＜ 0.2mg/L, is equivalent to anoxic pond 0.2～0.5 mg/L, catalytic oxidation in haydite micropore
Pond ＞ 2 mg/L.
In embodiments of the present invention, tubular type super/microfiltration membrane system 50 is former with macromolecular material Kynoar (PVDF)
Material, sintered molding.Circulating pump 40 for tubular type super/microfiltration membrane system 50 provides pressure, flow is 8.0m3/h × film number of elements, raises
Journey is 60m.Tubular type is super/and microfiltration membrane system 50 carries out cross flow filter under the promotion of circulating pump 40, and flow of inlet water is big, and flow velocity is high,
Carrying capacity is strong, thus avoids face fouling and problem is blocked up in dirt.Tubular type is super/and microfiltration membrane system 50 filters and produces water slurry density and refer to
Number (SDI) less than 3, turbidity is less than 0.2NTU.In biological treatment process, sludge concentration is up to more than 10000mg/L, and mud returns
Flow ratio is up to more than 500%, and organic pollution is fully degraded, and organic residual sludge yield is nearly " zero ".
Refer to Fig. 2, be the flow chart of the sewage water treatment method of the embodiment of the present invention.The sewage disposal of the embodiment of the present invention
Method comprises the following steps:
Step 100: collect sewage by regulating reservoir；
Step 200: when the sewage level in regulating reservoir rises to preset high water level, by elevator pump by the sewage in regulating reservoir
Pumping into hydrolysis acidification pool, the sewage self-flowing in hydrolysis acidification pool enters in contact-oxidation pool and circulation concentration basin；
In step 200, being additionally provided with the first liquid level control switch in regulating reservoir, the first liquid level control switch is connected with elevator pump,
When the sewage level in regulating reservoir rises to preset high water level, control elevator pump by the first liquid level control switch and start.When
When sewage level in regulating reservoir drops to preset low water level, control elevator pump by the first liquid level control switch and quit work.
Step 300: when the sewage level circulated in concentration basin rises to preset high water level, will circulate dense by circulating pump
Sewage in contracting pond pump into tubular type super/microfiltration membrane system carries out filtration treatment；
In step 300, being provided with the second liquid level control switch in circulation concentration basin, the second liquid level control switch is with circulating pump even
Connect；When the sewage level circulated in concentration basin rises to preset high water level, control circulating pump by the second liquid level control switch
Starting, tubular type is super/and microfiltration membrane system brings into operation；When the sewage level circulated in concentration basin drops to preset low water level, logical
Cross the second liquid level control switch control circulating pump to quit work.When the sewage level in circulation concentration basin rises to preset ultrahigh water
During position, elevator pump quits work, equipment downtime.When the sewage level circulated in concentration basin drops to default ultra low water level, if
Standby shutdown.
Step 400: by clear water reserviors storage through tubular type super/clear water that filters of microfiltration membrane system, and control tubular type super/microfiltration
Concentrate recirculation in membranous system enters to circulate in concentration basin；
In step 400, the mud mixture flocculation sediment of backflow to circulation concentration basin bottom, can periodic cleaning, enter pressure
Filter carries out mud-water separation.
The sewage disposal system of the embodiment of the present invention and method by external membrane bioreactor and are located at biological respinse
Tubular type outside device is super/and microfiltration membrane system carries out sewage disposal, the advantage remaining immersion MBR, overcomes immersion simultaneously
The deficiency of MBR, the advantage such as have that effluent quality is good, technological parameter is easily controllable, facility compact, occupation of land are few；Meanwhile, devise certainly
Dynamic control device, operational management is simple, in sewage disposal process, it is easy to accomplish automatically control.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (10)
1. a sewage disposal system, including regulating reservoir, bioreactor and clear water reserviors, it is characterised in that also include elevator pump,
Circulating pump and tubular type surpass/microfiltration membrane system；Described regulating reservoir is used for collecting sewage, described elevator pump respectively with regulating reservoir and biology
Reactor connects, and carries out sewage disposal for the sewage in regulating reservoir is pumped into bioreactor；Described circulating pump respectively with life
Thing reactor and tubular type surpass/microfiltration membrane system connection, super/micro-for the sewage after described bioreactor for treatment pumps into tubular type
Filter membrane system carries out filtration treatment, and described clear water reserviors are super with tubular type/microfiltration membrane system is connected, be used for storing described tubular type surpass/micro-
Clear water after filter membrane system filtration.
Sewage disposal system the most according to claim 1, it is characterised in that described bioreactor is that external membrane is biological
Reactor, described tubular type is super/and microfiltration membrane system is located at the outside of bioreactor.
Sewage disposal system the most according to claim 2, it is characterised in that described bioreactor is sequentially provided with hydrolysis acid
Changing pond, contact-oxidation pool and circulation concentration basin, the water inlet of described elevator pump is connected with the outlet of regulating reservoir, described elevator pump
Outlet be connected with the water inlet of hydrolysis acidification pool, the water inlet of described circulating pump with circulation concentration basin outlet be connected,
The outlet of described circulating pump and tubular type be super/and the water inlet of microfiltration membrane system is connected.
Sewage disposal system the most according to claim 3, it is characterised in that be additionally provided with the first liquid level control in described regulating reservoir
System switch, described first liquid level control switch is connected with elevator pump, when the sewage level in regulating reservoir rises to preset high water level
Time, described first liquid level control switch controls elevator pump and starts, the sewage in regulating reservoir is pumped into hydrolysis acidification pool；Work as regulating reservoir
When interior sewage level drops to preset low water level, described first liquid level control switch controls elevator pump and quits work.
Sewage disposal system the most according to claim 3, it is characterised in that be provided with the second liquid level in described circulation concentration basin
Controlling switch, described second liquid level control switch is connected with circulating pump；When the sewage level in described circulation concentration basin rises to
During preset high water level, described second liquid level control switch controls circulating pump and starts, and described tubular type is super/and microfiltration membrane system starts fortune
OK；When the sewage level in described circulation concentration basin drops to preset low water level, described second liquid level control switch controls to follow
Ring pump quits work.
Sewage disposal system the most according to claim 3, it is characterised in that described contact-oxidation pool is made pottery built with porous
Grain.
7. according to the sewage disposal system described in any one of claim 1 to 6, it is characterised in that described tubular type surpasses/micro-filtration membrane system
System is Kynoar sinter molding.
8. a sewage water treatment method, it is characterised in that comprise the following steps:
Step a: collect sewage by regulating reservoir, and by elevator pump, the sewage in regulating reservoir is pumped into bioreactor and carry out dirt
Water processes；
Step b: by circulating pump the sewage after described bioreactor for treatment pumped into tubular type super/microfiltration membrane system filters
Process；
Step c: by clear water reserviors store described tubular type super/microfiltration membrane system filter after clear water.
Sewage water treatment method the most according to claim 8, it is characterised in that be additionally provided with the first liquid level control in described regulating reservoir
System switch, when the sewage level in regulating reservoir rises to preset high water level, controls elevator pump by the first liquid level control switch
Start, when the sewage level in regulating reservoir drops to preset low water level, control elevator pump by the first liquid level control switch and stop
Only work.
Sewage water treatment method the most according to claim 9, it is characterised in that described bioreactor includes hydrolysis acidification
Pond, contact-oxidation pool and circulation concentration basin, be provided with the second liquid level control switch in described circulation concentration basin, when in circulation concentration basin
Sewage level when rising to preset high water level, control circulating pump by the second liquid level control switch and start, described tubular type is super/micro-
Filter membrane system brings into operation；When the sewage level circulated in concentration basin drops to preset low water level, described second Liquid level
On-off control circulating pump quits work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610612424.2A CN106045023A (en) | 2016-07-31 | 2016-07-31 | System and method for sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610612424.2A CN106045023A (en) | 2016-07-31 | 2016-07-31 | System and method for sewage treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106045023A true CN106045023A (en) | 2016-10-26 |
Family
ID=57196828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610612424.2A Pending CN106045023A (en) | 2016-07-31 | 2016-07-31 | System and method for sewage treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106045023A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086043A (en) * | 2014-06-24 | 2014-10-08 | 芜湖富春染织有限公司 | Printing and dyeing wastewater treatment and recovery method |
| CN104944709A (en) * | 2015-07-01 | 2015-09-30 | 郭景奎 | Electroplating wastewater zero-discharge treatment method and system |
| CN205222941U (en) * | 2015-11-17 | 2016-05-11 | 苏州市新能膜材料科技有限公司 | Processing system of automobile industry oiliness emulsion waste water |
-
2016
- 2016-07-31 CN CN201610612424.2A patent/CN106045023A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086043A (en) * | 2014-06-24 | 2014-10-08 | 芜湖富春染织有限公司 | Printing and dyeing wastewater treatment and recovery method |
| CN104944709A (en) * | 2015-07-01 | 2015-09-30 | 郭景奎 | Electroplating wastewater zero-discharge treatment method and system |
| CN205222941U (en) * | 2015-11-17 | 2016-05-11 | 苏州市新能膜材料科技有限公司 | Processing system of automobile industry oiliness emulsion waste water |
Non-Patent Citations (1)
| Title |
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| 刘辉编著: "《全流程生物氧化技术处理微污染原水》", 30 June 2003, 化学工业出版社 * |
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Application publication date: 20161026 |