CN105833713A - Combined biological method-based waste gas treatment system - Google Patents
Combined biological method-based waste gas treatment system Download PDFInfo
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- CN105833713A CN105833713A CN201510994402.2A CN201510994402A CN105833713A CN 105833713 A CN105833713 A CN 105833713A CN 201510994402 A CN201510994402 A CN 201510994402A CN 105833713 A CN105833713 A CN 105833713A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/95—Specific microorganisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a combined biological method-based waste gas treatment system. The system comprises a biological treatment pond, a circulating filtration water tank below the biological treatment pond and a purified gas pipe above the biological treatment pond. A horizontal second-grade biofilter layer, a spray device layer, a first-grade biofilter bed layer, an exhaust gas inlet space and a liquid reflux space are arranged in the biological treatment pond from top to bottom. The second-grade biofilter layer is communicated with a pH adjustment device. The system has a simple structure and a small land occupation area. pH of a microbial environment between two layers is controlled. A microbial strain survives easily, keeps good activity for a long time and is suitable for treatment on multiple types of exhaust gas.
Description
Technical field
The present invention relates to a kind of structure using microorganism to carry out emission-control equipment and technique.
Background technology
The method of exhaust-gas treatment has the multiple methods such as filtration, absorption, ozone oxidation, divine and mighty decomposition, but for the waste gas of some mixed gas, traditional disposal methods obtains the most thorough.
Utilize microorganism to carry out exhaust-gas treatment, be the new technique that grows up of Abroad in Recent Years.Its principle is to utilize the organic gas in microorganism absorption, oxidation or waste gas decomposition, becomes water and CO2 emission.But the structure that microorganism is selected cultivation and device needs the design examined, and just can have good exhaust-gas treatment effect.
A kind of cultivation of the disclosure of the invention of Application No. 2015101548925, purify integrative environmentally-friendly type poultry room, including airtight room body, described room body includes deodorization space setting up and down and space, room, the top of described room body is provided with the air exhauster for extracting space, described room foul smell connected with described deodorization space, described deodorization space is provided with the biological filter deodorizing device for the foul smell entering described air exhauster carries out deodorization, and the top in space, described room is provided with the biological deodorant flusher for spraying biological deodorant；This apparatus structure is excessively simple, not ideal enough to the source of the gas treatment effect of multiple waste gas.
Application No. 2014106741407 the invention provides a kind of biological deodorizing device, including biological deodorizing tower, one end of biological deodorizing tower connects foul smell collection device, and the other end connects deodorization blower fan；Biological deodorizing tower inner vertical is provided with dividing plate, and the side of dividing plate is bio-trickling district, and bio-trickling district is near foul smell collection device, and the opposite side of dividing plate is biological filtering area, and biofiltration district is near deodorization blower fan；Foul smell is entered in biological deodorizing tower by foul smell collection device, passes sequentially through bio-trickling district and the deodorization of biofiltration district, and the gas after deodorization is drained in air by deodorization blower fan.Though this device arranges staged care parts, but is vertically arranged and is unfavorable for that gas is exchanged by the heat of liquid, absorbs or filter, and is unfavorable for respective flowing.
Summary of the invention
Goal of the invention:
The exhaust treatment system of the combined bio method that can effectively remove multiple gases that a kind of structure arranges advantages of simple is provided.
Technical scheme:
The exhaust treatment system of the combined bio method of the present invention, has a biological treatment tank, has horizontally disposed second level biological filter bed, spray equipment layer, first order biological filter bed, waste gas entrance space, liquid backflow space inside it from top to bottom；There is below its side UNICOM's waste gas and enter the waste gas air source inlet in space, there is above its side UNICOM's second level biological filter bed the pH value adjusting means that can be monitored the pH value of second level biological filter bed and regulate.
There is below biological treatment tank circulating filtration water tank.
There is on the upper case of circulating filtration water tank its internal liquid backflow space refluxing opening of UNICOM；There is on the lower case of circulating filtration water tank its internal and spray equipment layer liquid of UNICOM and pump mouth, UNICOM's pipeline has pumping installations, it is possible to the liquid of circulating filtration water tank is delivered to spray equipment layer；The top of circulating filtration water tank is additionally provided with air pressure adjustment mouth, regulates its internal gas overflowed.
Also having defecator inside circulating filtration water tank, circulating filtration water tank is divided into two spaces by defecator, refluxing opening with pump mouth on the different both sides of defecator so that the liquid of backflow pumps removing after filtering again.
Biological treatment tank top has purified gas outlet, and UNICOM purifies air pipe, purifies air pipe and provides whole gas circuit mobilization dynamic by sucktion fan UNICOM evacuation port, sucktion fan, and last purification gas is directly discharged in air by evacuation port.
Biological filter bed has following function: as microorganism carrier；Nutrition is provided for microorganism；Moist ecological environment is provided for microorganism；Absorption surface is provided for the odorant pollutant in waste gas.
Active biological inoculum in first order biological filter bed, wherein bacteriophage kind is the most active, except the effect of sulfur-bearing elemental gas is best.Microorganism is adhered to, is fixed on efficient inert filler, and specific surface area is big.Liquid provides growth of microorganism to need suitable temperature, humidity and acid-base value condition；Organic substance in waste gas is provided that nutrient oxygen, carbon, nitrogen, phosphorus and the part trace element that Institute of Micro-biology needs.
Second level biological filter bed active biological inoculum bottom and except fog surface layer, in active bio strain bottom, non-bacteriophage kind is more the most active, unless the effect of sulfur-bearing elemental gas (Hydrocarbon such as benzene, hydrocarbon) is preferable；Microorganism is adhered to, is fixed on efficient inert filler, and inert filler has a lot of cavities of larger-size grade (0.1-5mm).Except fog surface layer have moisture absorbing except mist filler, except mist filler has many cavities of the relatively fine micron order of size (0.1-100 μm), except fog surface layer can remove purify after steam in tail gas, be beneficial to empty, saving water source, do not corrode purification air pipe.By pH value adjusting means UNICOM active bio strain bottom.
The pH value of the aqueous solution in circulating filtration water tank is 2-4 so that bacteriophage kind is easily survived；PH value adjusting means, it is possible to the pH value of the wet environment in the biological filter bed of the guarantee second level is 5-8 so that non-bacteriophage kind is easily survived.
During work, waste gas enters space from waste gas and enters first order biological filter bed, most sulfurous gas is absorbed by microorganism therein, decompose or oxidation, (spray equipment layer spraying liquid is to first order biological filter bed to then pass through spray equipment layer, the steam that microorganism needs is provided, nutrition, suitably pH value), then, gas enters second level bacteria bed, remaining gas is absorbed by microorganism therein, decompose or oxidation, filter, dehumidifying, the gases such as the most harmless CO2 and H2O gas are from purified gas outlet, discharge by purifying air pipe and evacuation port, the power of gas flowing comes from sucktion fan.Sucktion fan can connect evacuation port by elastic connecting pipe, meets the change of temperature fluctuation and gas atmosphere, exempts the stress in vibrations and pipeline.
Most harmful gass in waste gas are degraded by the microorganism-capturing of two-layer, aoxidize, are decomposed；In decomposition, produced other metabolites such as sulphuric acid, nitrous acid are along with the downward drip of liquid, entered space, liquid backflow space entered circulating filtration water tank by second level biological filter bed, spray equipment layer, first order biological filter bed, waste gas.
Microorganism in the microorganism in first order biological filter bed or second level biological filter bed, when lacking certain nutrient, the most additionally adds, and is provided by circulating filtration water tank or pH value adjusting means accordingly.
Beneficial effects of the present invention:
(1) apparatus structure using knockdown microbe treatment system is simple, and floor space is little, low cost of manufacture.
(2) gaseous species that layered shaping is different, respectively obtains suitable decomposition goods oxidation processes, good purification targetedly.Adapt to process the waste gas of multiple gases.
(3) in two-layer, the pH value of solution controls to adjust respectively, pH value precise control, and layered shaping makes different microorganism fungus kinds easily survive, non-interference again, the activity that permanent holding is good.
Accompanying drawing explanation
Fig. 1 is a cross-sectional view of the present invention；
In figure, 1-water source；2-liquid backflow space；3-refluxing opening；4-waste gas enters space；5-waste gas source of the gas；6-first order biological filter bed；7-spray equipment layer；8-PH value adjusting device；9-second level biological filter bed；10-purifies air pipe；11-evacuation port；12-elastic connecting pipe；13-sucktion fan；14-liquid pumping pipeline；15-pumping installations；16-barometric control unit；17-air pressure adjustment mouth；18-circulating filtration water tank；19-liquid return line；20-defecator.
Detailed description of the invention
The exhaust treatment system of combined bio method as shown in Figure 1, the circulating filtration water tank 18 there is a biological treatment tank, being disposed below, the purification air pipe 10 being positioned above；
Have horizontally disposed second level biological filter bed 9, spray equipment layer 7, first order biological filter bed 6 inside biological treatment tank from top to bottom, waste gas enters space 4, liquid refluxes space 2；There is below its side UNICOM's waste gas and enter waste gas source of the gas 5 entrance in space 4, there is above its side the pH value adjusting means 8 of UNICOM's second level biological filter bed 9.
There is on the upper case of circulating filtration water tank 18 its internal refluxing opening 3 of UNICOM；There is on the lower case of circulating filtration water tank 18 its internal and spray equipment layer 7 liquid of UNICOM and pump mouth, UNICOM's pipeline has pumping installations 15；Circulating filtration water tank 18 is internal also has defecator 20, and circulating filtration water tank is divided into two spaces by defecator 20, refluxing opening 3 and pump mouth on the different both sides of defecator 20 so that the liquid of backflow pumps removing after filtering again.
Biological treatment tank top has purified gas outlet, and UNICOM purifies air pipe 10, purifies air pipe 10 by sucktion fan 13 UNICOM evacuation port 11.
In first order biological filter bed 6, bacteriophage kind is the most active；In circulating filtration water tank, the pH value of the aqueous solution of 18 is 2-4.In second level biological filter bed 9, non-sulfur strain is more the most active, and the pH value of the wet environment in second level biological filter bed 9 is 5-8.
The top of circulating filtration water tank 18 is additionally provided with air pressure adjustment mouth 17, connects barometric control unit, regulates its internal gas overflowed.
Claims (5)
1. an exhaust treatment system for combined bio method, the circulating filtration water tank there is a biological treatment tank, being disposed below, the purification air pipe being positioned above；It is characterized in that:
Have horizontally disposed second level biological filter bed, spray equipment layer, first order biological filter bed inside described biological treatment tank from top to bottom, waste gas enters space, liquid refluxes space；There is below its side UNICOM's waste gas and enter the waste gas air source inlet in space, there is above its side the pH value adjusting means of UNICOM's second level biological filter bed；
There is on the upper case of described circulating filtration water tank its internal refluxing opening of UNICOM；There is on the lower case of circulating filtration water tank its internal and spray equipment layer liquid of UNICOM and pump mouth, UNICOM's pipeline has pumping installations；Also having defecator inside circulating filtration water tank, circulating filtration water tank is divided into two spaces by defecator, refluxing opening with pump mouth on the different both sides of defecator so that the liquid of backflow pumps removing after filtering again；
Described biological treatment tank top has purified gas outlet, and UNICOM purifies air pipe, purifies air pipe by sucktion fan UNICOM evacuation port；
Active biological inoculum in described first order biological filter bed, wherein bacteriophage kind is the most active；The described second level active biological inoculum of biological filter bed, in active bio strain therein, non-sulfur strain is more the most active.
2. the exhaust treatment system of combined bio method as claimed in claim 1, it is characterized in that: described second level biological filter bed active biological inoculum bottom and except fog surface layer, in active bio strain bottom, non-sulfur strain is more the most active, by pH value adjusting means UNICOM active bio strain bottom；Except fog surface layer can remove the steam purified in gas.
3. the exhaust treatment system of combined bio method as claimed in claim 2, it is characterised in that: the inert filler of described active bio strain bottom can have larger-size millimetre-sized a lot of cavities；Except fog surface layer has micron-sized many cavities that size is relatively fine.
4. the exhaust treatment system of combined bio method as claimed in claim 1 or 2, it is characterised in that: the top of described circulating filtration water tank is also provided with air pressure adjustment mouth, regulates its internal gas overflowed.
5. the exhaust treatment system of the combined bio method as described in claim 1,2,3 or 4, it is characterised in that: the pH value of the described aqueous solution in circulating filtration water tank is 2-4；PH value adjusting means, it is possible to the pH value of the wet environment in the biological filter bed of the guarantee second level is 5-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510994402.2A CN105833713A (en) | 2015-12-28 | 2015-12-28 | Combined biological method-based waste gas treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510994402.2A CN105833713A (en) | 2015-12-28 | 2015-12-28 | Combined biological method-based waste gas treatment system |
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| CN105833713A true CN105833713A (en) | 2016-08-10 |
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| CN201510994402.2A Pending CN105833713A (en) | 2015-12-28 | 2015-12-28 | Combined biological method-based waste gas treatment system |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2220413A (en) * | 1988-04-27 | 1990-01-10 | Ciba Geigy | Trearment of volatile organic substances at waste water treatment plants |
| US5389248A (en) * | 1993-05-21 | 1995-02-14 | Bioremetek, Inc. | Bioreactor for biological treatment of contaminated water |
| CN101264420A (en) * | 2007-03-15 | 2008-09-17 | 中国科学院生态环境研究中心 | Double reaction area integral waste gases biodecontamination reactor and waste gas treatment method thereby |
| CN101664637A (en) * | 2009-09-16 | 2010-03-10 | 湖北省农业科学院植保土肥研究所 | Multilayer mixed culture biological deodorizing filter tower and method for removing malodorous gases |
| CN102284245A (en) * | 2011-06-14 | 2011-12-21 | 浙江工业大学 | Method for treating waste gas by biotrickling filter, and special device thereof |
| CN202497818U (en) * | 2012-04-19 | 2012-10-24 | 天津凯英科技发展有限公司 | Multi-level comprehensive treatment system for foul gas |
| CN202497819U (en) * | 2012-04-19 | 2012-10-24 | 天津凯英科技发展有限公司 | Biotrickling filter deodorization system |
| CN202569951U (en) * | 2011-12-16 | 2012-12-05 | 宋青 | Device for performing biological deodorization and waste gas treatment on sewage |
| CN205435467U (en) * | 2015-12-28 | 2016-08-10 | 江苏科威环保技术有限公司 | Modular exhaust treatment device of biological method |
-
2015
- 2015-12-28 CN CN201510994402.2A patent/CN105833713A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2220413A (en) * | 1988-04-27 | 1990-01-10 | Ciba Geigy | Trearment of volatile organic substances at waste water treatment plants |
| US5389248A (en) * | 1993-05-21 | 1995-02-14 | Bioremetek, Inc. | Bioreactor for biological treatment of contaminated water |
| US5389248B1 (en) * | 1993-05-21 | 1998-09-29 | Tour Mcgill College | Bioreactor for biological treatment of contaminated water |
| CN101264420A (en) * | 2007-03-15 | 2008-09-17 | 中国科学院生态环境研究中心 | Double reaction area integral waste gases biodecontamination reactor and waste gas treatment method thereby |
| CN101664637A (en) * | 2009-09-16 | 2010-03-10 | 湖北省农业科学院植保土肥研究所 | Multilayer mixed culture biological deodorizing filter tower and method for removing malodorous gases |
| CN102284245A (en) * | 2011-06-14 | 2011-12-21 | 浙江工业大学 | Method for treating waste gas by biotrickling filter, and special device thereof |
| CN202569951U (en) * | 2011-12-16 | 2012-12-05 | 宋青 | Device for performing biological deodorization and waste gas treatment on sewage |
| CN202497818U (en) * | 2012-04-19 | 2012-10-24 | 天津凯英科技发展有限公司 | Multi-level comprehensive treatment system for foul gas |
| CN202497819U (en) * | 2012-04-19 | 2012-10-24 | 天津凯英科技发展有限公司 | Biotrickling filter deodorization system |
| CN205435467U (en) * | 2015-12-28 | 2016-08-10 | 江苏科威环保技术有限公司 | Modular exhaust treatment device of biological method |
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Application publication date: 20160810 |