CN105601044A - Anaerobic gas-stripping MBR (membrane bioreactor) combined reactor - Google Patents
Anaerobic gas-stripping MBR (membrane bioreactor) combined reactor Download PDFInfo
- Publication number
- CN105601044A CN105601044A CN201610064263.8A CN201610064263A CN105601044A CN 105601044 A CN105601044 A CN 105601044A CN 201610064263 A CN201610064263 A CN 201610064263A CN 105601044 A CN105601044 A CN 105601044A
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- China
- Prior art keywords
- biogas
- pipeline
- reactor
- anaerobic reactor
- anaerobic
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Classifications
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- 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
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses an anaerobic gas-stripping MBR (membrane bioreactor) combined reactor which comprises a gas-stripping anaerobic reactor, wherein the lower part of the anaerobic reactor is provided with a feed port; the upper part of the anaerobic reactor is provided with a discharge port; gas-stripping stirring pipes, which are vertically distributed and perforated up and down, are arranged in the anaerobic reactor; the bottom of each gas-stripping stirring pipe is provided with a compressed biogas inlet; the upper part of the anaerobic reactor is provided with a solid-liquid separator; the top of the anaerobic reactor is provided with a biogas outlet; the biogas gas outlet is connected with a biogas compressor through a first biogas pipeline; the biogas compressor is connected with the compressed biogas inlet through a second biogas pipeline; the discharge port communicates to a membrane biological reaction tank through a discharge pipeline; a membrane component is arranged in the membrane biological reaction tank; a water outlet pipeline is arranged above the membrane component and provided with a suction pump; the bottom of the membrane biological reaction tank communicates to the feed port through a reflux pipeline; and the reflux pipeline is provided with a reflux pump. The combined reactor disclosed by the invention can solve the problem of loss of sludge.
Description
Technical field
The present invention relates to technical field of sewage, particularly a kind of anaerobism air lift MBR composite reactionDevice.
Background technology
Changing food waste is about 3-5% through washing, removal of impurities, the slurry solid content carried after oil, fragmentation, organicMatter very high concentrations, Anaerobic Treatment is its first-selected minimizing, resource route.
Mixing energy effectively increases microorganism and substrate (organic matter) contact probability, can accelerate anaerobic reaction speedDegree, avoids reactor acidifying problem, improves the stroke of reactor water resistant, variations in temperature simultaneously, contributes toAnaerobic reaction stable operation, increase anaerobic reactor volumetric loading and then reduce reactor volume, reduce and throwMoney. Traditional C/S TR process using mechanical agitation increases solid-liquid mixed effect, and energy consumption is high, for thickness,The meal kitchen slurry of high concentration very easily causes layering, and at the bottom of volumetric loading, anaerobic reactor is bulky.
In reactor, sludge concentration is the key of reactor for treatment ability, and sludge concentration is higher, and its volume is negativeLotus is larger, and disposal ability is higher, for the meal kitchen slurry of organic very high concentrations, keeps in reactorHigh sludge concentration is very important.
Meal kitchen slurry wastewater contains grease, easily causes that mud floating causes sludge loss, and high electricity is led in additionThe mud that rate makes is difficult to form particle, and in reactor, mud is mostly floc sludge, UASB, EGSB,The three phase separator of the anaerobic reactors such as IC is limited to its separating power.
Application number is that 201320353376.1 Chinese utility model patent discloses a kind of anaerobic reactor,Carry out air lift stirring by the method for compressed biogas being squeezed into reactor bottom, reach the interior material of reactor completeFull effect of mixing, and avoided the upper and lower layering of slurry in reactor.
This reactor is provided with the separator of air supporting or sloping plate deposition in inside, to separate water outlet and bacterial classificationMud. Practical operating experiences shows, for the tiny anaerobism floc sludge of flco, and independent air supporting or heavyShallow lake separation method, separating power is limited, is easy to run mud, causes sludge concentration deficiency in reactor, increasesAdd the problem that follow-up Aerobic Process for Treatment is loaded and caused pipeline blockage.
Summary of the invention
The object of the invention is to provide a kind of anaerobism air lift MBR combined reactor, to solve existing anaerobism placeIn reason technology volumetric loading low, be uniformly mixed the problem inhomogeneous, solid-liquid separation effect is undesirable.
Based on the problems referred to above, technical scheme provided by the invention is:
Anaerobism air lift MBR combined reactor, comprises gas stripping type anaerobic reactor, described anaerobic reactorBottom be provided with charging aperture, the top of described anaerobic reactor is provided with discharging opening, in described anaerobic reactorBe provided with the air lift stirring pipe of vertical distribution and up/down perforation, the bottom of described air lift stirring pipe is provided with compression natural pondGas air inlet, the top of described anaerobic reactor is provided with equipment for separating liquid from solid, the top of described anaerobic reactorPortion is provided with biogas gas outlet, and described biogas gas outlet the first methane pipeline is connected to biogas pressue device,Described biogas pressue device is connected to described compressed biogas air inlet, described discharging opening through the second methane pipelineBe communicated to membrane biological reaction pond through discharging pipeline, described membrane biological reaction is provided with membrane module in pond, described filmAssembly top is provided with outlet pipeline, and described outlet pipeline is provided with suction pump, at the bottom of described membrane biological reaction pondPortion is communicated to described charging aperture through return line, and described return line is provided with reflux pump.
In an embodiment therein, described biogas pressue device is through described in the 3rd methane pipeline is connected toBottom, membrane biological reaction pond, top, described membrane biological reaction pond the 4th methane pipeline is communicated to described anaerobismReactor.
In an embodiment therein, described Marsh gas compression device comprises biogas air bag and Marsh gas compressionMachine.
Compared with prior art, advantage of the present invention is:
Adopt technical scheme of the present invention, by gas stripping type anaerobic reactor delivery port through discharging pipeline connectionTo membrane biological reaction pond, after anaerobic reactor air lift stirring reaction, muddy water mixed solution fills through Separation of Solid and LiquidPut separation, anaerobic effluent is realized solid-liquid and is further separated in membrane biological reaction pond, and anaerobic sludge is wholeHold back, the sludge reflux in membrane biological reaction pond, to anaerobic reactor, reduces sludge loss, makes anaerobism anti-Answer in device and keep high sludge concentration, improve volumetric loading, and then improve contaminant removal efficiency;
2. adopt technical scheme of the present invention, under anaerobic grain sludge or high salinity waste water service conditionFloc sludge have good centrifugation, improved water quality of anaerobic effluent;
3. adopt technical scheme of the present invention, the first separator in anaerobic reactor inside of muddy water mixed solutionCarry out pre-separation, reduced the SS concentration that enters MBR, can keep larger MBR membrane flux,Decelerating membrane pollution;
4. adopt the further technical scheme of the present invention, pressurization biogas enters film biology through the 3rd methane pipelineReactor, produces disturbance to membrane module, avoids mud to pile up, and maintains higher membrane flux.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, institute in describing embodiment belowNeed the accompanying drawing using to be briefly described, the accompanying drawing in the following describes is only enforcements more of the present inventionExample, for those of ordinary skill in the art, not paying under the prerequisite of creative work, all rightObtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of anaerobism air lift MBR combined reactor embodiment of the present invention;
Wherein:
1, anaerobic reactor;
2, air lift stirring pipe;
3, compressed biogas air inlet;
4, charging aperture;
5, discharging opening;
6, biogas gas outlet;
7, the first methane pipeline;
8, biogas air bag;
9, Marsh gas compression machine;
10, the second methane pipeline;
11, discharging pipeline;
12, MBR pond;
13, membrane module;
14, outlet pipeline;
15, suction pump;
16, return line;
17, reflux pump;
18, the 3rd methane pipeline;
19, the 4th methane pipeline;
20, equipment for separating liquid from solid.
Detailed description of the invention
Below in conjunction with specific embodiment, such scheme is described further. Should be understood that these embodiment areBe used for the present invention is described and be not limited to limit the scope of the invention. The implementation condition adopting in embodiment is passableDo further adjustment according to the condition of concrete producer, not marked implementation condition is generally in normal experimentCondition.
Referring to Fig. 1, be the structural representation of the embodiment of the present invention, a kind of anaerobism air lift MBR group is providedClose reactor, it comprises gas stripping type anaerobic reactor 1, and the bottom of anaerobic reactor 1 is provided with charging aperture 4,The top of anaerobic reactor 1 is provided with discharging opening 5, is provided with vertical distribution and upper and lower in anaerobic reactor 1The air lift stirring pipe 2 connecting, the bottom of air lift stirring pipe 2 is provided with compressed biogas air inlet 3, in anaerobismThe top of reactor is provided with equipment for separating liquid from solid 20, is provided with biogas gives vent to anger at the top of anaerobic reation pool 1Mouthfuls 6, this biogas gas outlet 6 is connected to biogas pressue device through the first methane pipeline 7, and biogas adds and press-fitsPut the compressed biogas air inlet 3 that is connected to air lift stirring pipe 2 bottoms through the second methane pipeline 10, anaerobismThe biogas that reactor 1 self produces produces by re-entering in the air lift stirring pipe 2 in reactor after pressurizeingAnger is carried, and relies on air lift that bottom slurry is risen to reactor head, breaks through knot lid and falls circulation after rise again, makesAnaerobic reactor 1 obtains high sludge concentration.
Improvements of the present invention are: anaerobic reactor 1 discharging opening 5 is communicated with through discharging pipeline 11To 12 tops, MBR pond, 12 tops, MBR pond seal, and in MBR pond 12, are provided with Separation of Solid and LiquidMembrane module 13, membrane module 13 tops are provided with outlet pipeline 14, are provided with and take out on outlet pipeline 14 simultaneouslySucking pump 15,12 bottoms, MBR pond are communicated to anaerobic reactor 1 charging aperture 4 through return line 16,Return line 16 be provided with reflux pump 17 with by the bacterial classification sludge reflux being separated by MBR pond 12 to detestingOxygen reactor 1.
In this example, equipment for separating liquid from solid 20 also can be placed in discharging opening 5 places of anaerobic reactor 1, isolatesWater enters MBR system.
In order further to optimize implementation result of the present invention, biogas pressue device is through the 3rd methane pipeline 18Be connected to 12 bottoms, MBR pond, compressed biogas can stir MBR pond 12, by MBR pond12 tops the 4th methane pipeline 19 is communicated to anaerobic reactor, avoids on outlet pipeline 14 on the one handSuction pump 15 forms negative pressure while work, can also avoid on the other hand the gas such as hydrogen sulfide, methane at MBRThe interior accumulation in pond 12.
Marsh gas compression device in this example comprises biogas air bag 8 and Marsh gas compression machine 9, biogas air bag 8 HesMarsh gas compression machine 9 is arranged between the first methane pipeline 7 and the second methane pipeline 10, by anaerobism successivelyThe biogas that reactor 1 is collected, exports from biogas gas outlet 6, relies on nature by the first methane pipeline 7Pressure is transported to biogas air bag 8, and a part of biogas stores for future use, and a part of biogas is delivered to Marsh gas compressionMachine 9, the biogas after pressurization continues on to compressed biogas air inlet 3 along the second methane pipeline 10, andCompressed biogas air inlet 3 discharges, and stirs in the interior air lift that realizes of air lift stirring pipe 2.
Operation principle of the present invention is: anaerobic reactor 1 interior through the reacted discharging of Gas Stirring through dischargingPipeline 11 enters MBR pond 12, and under the pressure of suction pump 15, clear water sees through membrane module 13 to be passed throughOutlet pipeline 14 is discharged, and mud bacterium and do not have the screenings of degraded to be trapped within MBR pond 12 is logicalCrossing reflux pump 17 and return line 16 is back in anaerobic reactor 1; Biogas pressue device is through the 3rd natural pondAir pipe 18 is connected to 12 bottoms, MBR pond, and compressed biogas can stir MBR pond 12,Biogas in MBR pond 12 is delivered in anaerobic reactor 1 through the 4th methane pipeline 19, and balance two is anti-Answer device internal gas pressure.
Above-mentioned example is only explanation technical conceive of the present invention and feature, and its object is to allow is familiar with this skillThe people of art can understand content of the present invention and implement according to this, can not limit protection of the present invention with thisScope. All equivalent transformations that Spirit Essence does according to the present invention or modification, all should be encompassed in of the present inventionWithin protection domain.
Claims (3)
1. anaerobism air lift MBR combined reactor, comprises gas stripping type anaerobic reactor (1), described in detestThe bottom of oxygen reactor (1) is provided with charging aperture (4), and the top of described anaerobic reactor (1) is provided with outExpect mouthful (5), in described anaerobic reactor (1), be provided with the air lift stirring pipe of vertical distribution and up/down perforation(2), the bottom of described air lift stirring pipe (2) is provided with compressed biogas air inlet (3), and described anaerobism is anti-Answer the top of device to be provided with equipment for separating liquid from solid (20), the top of described anaerobic reactor (1) is provided with biogasGas outlet (6), described biogas gas outlet (6) is connected to biogas through the first methane pipeline (7) and adds and press-fitPut, described biogas pressue device is connected to described compressed biogas air inlet (3) through the second methane pipeline (10),It is characterized in that: described discharging opening (5) is communicated to membrane biological reaction pond (12) through discharging pipeline (11),In described membrane biological reaction pond (12), be provided with membrane module (13), described membrane module (13) top is provided withOutlet pipeline (14), described outlet pipeline (14) is provided with suction pump (15), described membrane biological reactionBottom, pond (12) is communicated to described charging aperture (4) through return line (16), described return line (16)Be provided with reflux pump (17).
2. anaerobism air lift MBR combined reactor according to claim 1, is characterized in that:Described biogas pressue device is connected to (12) end, described membrane biological reaction pond through the 3rd methane pipeline (18)Portion, it is anti-that top, described membrane biological reaction pond (12) the 4th methane pipeline (19) is communicated to described anaerobismAnswer device (1).
3. anaerobism air lift MBR combined reactor according to claim 1 and 2, its feature existsIn: described Marsh gas compression device comprises biogas air bag (8) and Marsh gas compression machine (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610064263.8A CN105601044A (en) | 2016-01-29 | 2016-01-29 | Anaerobic gas-stripping MBR (membrane bioreactor) combined reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610064263.8A CN105601044A (en) | 2016-01-29 | 2016-01-29 | Anaerobic gas-stripping MBR (membrane bioreactor) combined reactor |
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| CN105601044A true CN105601044A (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610064263.8A Pending CN105601044A (en) | 2016-01-29 | 2016-01-29 | Anaerobic gas-stripping MBR (membrane bioreactor) combined reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745724A (en) * | 2017-02-10 | 2017-05-31 | 苏州苏科环保科技有限公司 | A kind of kitchen waste water anaerobism MBR processing equipments |
| CN108557996A (en) * | 2018-03-07 | 2018-09-21 | 苏州科特环保股份有限公司 | A kind of anaerobic reaction system with biogas air supporting, agitating function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6299774B1 (en) * | 2000-06-26 | 2001-10-09 | Jack L. Ainsworth | Anaerobic digester system |
| CN103080022A (en) * | 2010-08-31 | 2013-05-01 | 泽农科技合股公司 | Method for utilizing internally generated biogas for closed membrane system operation |
| CN203307190U (en) * | 2013-06-19 | 2013-11-27 | 清勤水处理科技（上海）有限公司 | Anaerobic reactor |
| CN103588296A (en) * | 2013-11-20 | 2014-02-19 | 乐金电子研发中心(上海)有限公司 | Method for treating sewage by using anaerobic membrane bioreactor to remove sulphur and nitrogen |
-
2016
- 2016-01-29 CN CN201610064263.8A patent/CN105601044A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6299774B1 (en) * | 2000-06-26 | 2001-10-09 | Jack L. Ainsworth | Anaerobic digester system |
| CN103080022A (en) * | 2010-08-31 | 2013-05-01 | 泽农科技合股公司 | Method for utilizing internally generated biogas for closed membrane system operation |
| CN203307190U (en) * | 2013-06-19 | 2013-11-27 | 清勤水处理科技（上海）有限公司 | Anaerobic reactor |
| CN103588296A (en) * | 2013-11-20 | 2014-02-19 | 乐金电子研发中心(上海)有限公司 | Method for treating sewage by using anaerobic membrane bioreactor to remove sulphur and nitrogen |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745724A (en) * | 2017-02-10 | 2017-05-31 | 苏州苏科环保科技有限公司 | A kind of kitchen waste water anaerobism MBR processing equipments |
| CN108557996A (en) * | 2018-03-07 | 2018-09-21 | 苏州科特环保股份有限公司 | A kind of anaerobic reaction system with biogas air supporting, agitating function |
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Application publication date: 20160525 |