CN1410150A - Composite type bioreactor waste gas processing equipment - Google Patents
Composite type bioreactor waste gas processing equipment Download PDFInfo
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- CN1410150A CN1410150A CN01141503A CN01141503A CN1410150A CN 1410150 A CN1410150 A CN 1410150A CN 01141503 A CN01141503 A CN 01141503A CN 01141503 A CN01141503 A CN 01141503A CN 1410150 A CN1410150 A CN 1410150A
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- bioreactor
- waste gas
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- biological reactor
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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
Abstract
A combined bioreactor used to treat waste gas is composed of suspension-type bioreactor containing bacteria in the lower part, fixed bioreactor containing filler and funguses in the upper part, and tube and partition betwen the said two bioreactors. It can effectively remove both hydrophilic and hydrophobic pollutants.
Description
Technical field
The invention belongs to the equipment that utilizes bioreactor for treatment waste gas, particularly a kind of bioreactor waste gas processing equipment of combined type.
Background technology
The biological treatment of waste gas is to utilize microorganism with the degraded of organic pollution in the waste gas or odorant or be converted into the process of harmless or low harmful class material.Compare with other physico-chemical process, handle the waste gas small investment with bioanalysis, operating cost is low, and pollutant can not be transferred to other place, does not produce secondary pollution.Waste gas biological treating equipment in the past mainly is divided into three kinds of biofilter, biological scrubbing tower and bio-trickling filters.They respectively have characteristics and application conditions.
The biofilter (see figure 2) is made of the prewet fixed type biological reactor 5 of equipment 13 and inner filling active filler of gas, waste gas is after prewetting, enter the fixed type biological reactor, the microbial degradation that is attached on filler is water and carbon dioxide etc., discharges then.The characteristics of biofilter treatment facility are to have only a bioreactor, and equipment is simple, and operating cost is low.Be suitable for concentration of treatment between 0.5-1.0g/m
3, pollutant is mainly hydrophilic and a small amount of hydrophobic waste gas.But floor space is bigger, need add the gas equipment of prewetting before bioreactor, is unsuitable for handling the higher waste gas of pollutant levels.
Biological scrubbing tower constitutes (see figure 3) by a washer 16 and the bioreactor 17 with activated sludge that filler is housed usually.Washer is a gas absorbing device, and the pollutant in the waste gas contacts with the water of filling surface, is absorbed by water, and flows in the bioreactor with water; In bioreactor, decomposed by the microorganism in the activated sludge.This equipment is easy to control reaction condition, is suitable for concentration of treatment between 1.0-5.0g/m
3, pollutant is hydrophilic waste gas.But need add the gas wash mill before bioreactor, equipment is complicated.Be unsuitable for handling hydrophobic contaminant.
Bio-trickling filter has only an inner fixed type biological reactor (see figure 4) of filling filler, and described filler is the long biomembranous inert filler 19 that has.Recirculated water constantly is sprayed on the filler, and filling surface is covered by the biomembrane that microorganism forms.When waste gas passed through reactor, the pollutant in the waste gas was degraded by microorganisms.The bio-trickling pool equipment is simpler, and the absorption of pollutant and biodegradation occur in the reaction unit simultaneously in the waste gas, and it is suitable for concentration of treatment and is lower than 0.5g/m
3, pollutant is hydrophilic waste gas.But can not handle the pollutant of high concentration, also be unsuitable for handling the hydrophobic contaminant in the waste gas.
These three kinds of common defectives of waste gas biological treating equipment are for the waste gas that is mixed with the multiple pollutant that water-soluble difference is big, concentration is different, rely on above-mentioned single a kind of treatment facility to be difficult to remove effectively simultaneously.Three kinds of equipment are moved simultaneously, can bring problems such as floor space is big, equipment is complicated, investment is many, operating cost height again.In the bioreactor of these three kinds of treatment facilities, cultured microorganism is all based on bacterium, and therefore, the pollutant that is suitable for handling mostly is hydrophilic.In addition, the prewet gas scrubbing system of equipment, biological scrubbing tower and bio-trickling filter of the gas in the biofilter all needs a large amount of recirculated waters, and energy consumption is bigger.
Summary of the invention
The objective of the invention is to overcome the defective of above-mentioned biological waste gas treatment equipment, provide a kind of easy and simple to handle, energy consumption is lower, contain the composite type bioreactor waste gas processing equipment that hydrophily and lyophobic dust are removed simultaneously in can be effectively that concentration range is big, the waste gas.
Another object of the present invention provides the method for operating of composite type bioreactor waste gas processing equipment.
Composite type bioreactor waste gas processing equipment of the present invention comprises fixed type biological reactor 5 that filler is housed, circulating pump 20 etc.; This equipment is made of floated bioreactor 3 that has microorganism and the fixed type biological reactor 5 that filler is housed;
Described floated bioreactor 3 lower sides have an air inlet 1, and 1 place is equipped with perforated pipe 2 at air inlet, and upper portion side wall is provided with delivery port 10, and dock with fixed type biological reactor 5 at the top;
The inside of described fixed type biological reactor 5 is filled with filler 9, and upper portion side wall is provided with spray liquid import 8, and there is shower nozzle 7 at 8 places in import, has exhaust outlet 6 at the top;
Between two bioreactors the dividing plate 11 that has the hole is installed; Or
The inside of described fixed type biological reactor 5 is filled with filler 9, and upper portion side wall is provided with spray liquid import 8, and there is shower nozzle 7 at 8 places in import, and the sidewall in the bottom has exhaust outlet 6; Between floated bioreactor 3 and fixed type biological reactor 5, air communicating pipe 12 is arranged;
Between two bioreactors dividing plate 11 is installed.
Hole on the described dividing plate 11 is more than one.
The characteristics that the present invention is different from other waste gas treatment equipments are to have two bioreactors, according to the method for operation, are divided into upward flow formula and following to streaming.In floated bioreactor, the microorganism of degradation of contaminant is that suspended dispersed is in water, based on bacterium.Fill filler at the fixed type biological inside reactor, the microorganism of degradation of contaminant be apposition growth at filling surface, microorganism is based on fungi.Therefore, equipment of the present invention can be removed hydrophily in the waste gas and hydrophobic contaminant effectively simultaneously.
For the upward flow formula, the dividing plate between two bioreactors has the hole; To streaming, the dividing plate atresia between two bioreactors is communicated with by air communicating pipe 12 for down.
In two bioreactors, the microorganism of pollutant is inequality in the degraded waste gas, and they are the water miscible difference according to pollutant in the waste gas, cultivate selectively.The bacterium of microorganism in the floated bioreactor to be suitable in water, growing, help hydrophily contaminant degradation in the waste gas; The fixed type biological reactor is cultivated fungi and is replaced bacterium, helps the removal of hydrophobic contaminant in the waste gas.Fungi can generate mycelia in air, mycelia to around distribute and form the mycelia net, help to increase the contact area of pollutant and mushroom in the gas phase, the pollutant in the gas phase is directly fully contacted with fungi in bioreactor, finish mass transport process better.Particularly for some organic exhaust gas, the degradation capability of fungi is higher than bacterium.Fungi can be lower in the pH value, survive under the condition of surrounding environment relatively dry.
The method of operating of composite type bioreactor waste gas processing equipment of the present invention is: waste gas enters in the floated bioreactor from the bottom, and material soluble in water in the waste gas is absorbed degraded by the microorganism in the water; Gas is prewetted simultaneously.The hydrophobic contaminant that is not degraded enters in the fixed type biological reactor, is attached the fungi microbe degraded on filler.
For the upward flow method of operation, the dividing plate between two bioreactors is porose.The hydrophobic contaminant that is not degraded in floated bioreactor enters the fixed type biological reactor from the bottom by dividing plate, and discharge from the top back that is degraded.The shower nozzle of fixed type biological reactor head regularly sprays carbon-free nutrient liquor to filler, and excessive nutrient solution flows in the floated bioreactor by dividing plate, for the microorganism in the floated bioreactor provides nutrition.
To the stream method of operation, the dividing plate between two reactors is an atresia, by connecting communicating pipe for down.The hydrophobic contaminant that is not degraded in floated bioreactor entered the fixed type biological reactor from top by communicating pipe, and discharge from the fixed type biological reactor lower part degraded back.
Equipment of the present invention has following advantage:
1. with two bioreactor combinations, compact conformation, structure is succinct, floor space is little, operation with safeguard simple.
2. in two parts reactor,, optionally cultivate different types of microorganism, thereby realize the multiple pollutant in the waste gas is removed simultaneously effectively according to the water miscible difference of the pollutant in the waste gas.
3. can realize simultaneously in the floated bioreactor that aeration, gas are prewetted and transfer and the degraded of pollutant from the gas phase to the water soluble in water, reduce auxiliary equipment, reduce energy consumption.
4. replace bacterial degradation waste gas with fungi in the fixed type biological reactor.On the one hand, the waste gas in the gas phase is directly fully contacted in bioreactor with fungi, finish mass transport process better.On the other hand, fungi is stronger to the adaptability of humidity and pH value.
5. composite type bioreactor need not recirculated water, and nutrient solution is regular supply, and the spray number of times is few, reduces energy consumption.
Description of drawings
Fig. 1. the schematic diagram of present device, under a upward flow formula b. to streaming.
Fig. 2. existing biofilter equipment schematic diagram.
Fig. 3. existing biological scrubbing tower equipment schematic diagram.
Fig. 4. existing bio-trickling pool equipment schematic diagram.
Reference numeral
1 air inlet, 2 perforated pipes, the 3 floated bioreactor 4 gases equipment of prewetting
5 fixed type biological reactors, 6 exhaust outlets, 7 shower nozzles
8 spray liquid imports, 9 fillers, 10 delivery ports, 11 dividing plates
12 air communicating pipes, 13 active fillers, 14 gravels
15 inert fillers, 16 washers, 17 activated sludge reactors
18 sedimentation basins, 19 length have biomembranous inert filler 20 circulating pumps
The specific embodiment
Embodiment 1: see also Fig. 1 a, the upward flow method of operation.
The composite type bioreactor waste gas processing equipment that lucite is made, its diameter are 10cm, and cumulative volume is 7 cubes and rises.This equipment comprises by the floated bioreactor 3 that has microorganism, the fixed type biological reactor 5 that filler is housed and circulating pump 20 etc. and constituting.
Have a gas port 1 at floated bioreactor 3 lower sides, 1 place is equipped with perforated pipe 2 at air inlet, and upper portion side wall is provided with delivery port 10, and dock with fixed type biological reactor 5 at the top, and fixed by ring flange; Cultured microorganism is based on bacterium, and the branch separated county suspends in water.
Be filled with inert fillers 9 such as sponge or perlite in the inside of fixed type biological reactor 5, upper portion side wall is provided with spray liquid import 8, and shower nozzle 7 is arranged at import 8 places, has exhaust outlet 6 at the top; Microorganism is based on fungi, and apposition growth is on filler 9 surfaces.
Between two bioreactors the dividing plate 11 that has porous is installed; Wherein the aperture in each hole is 2-3mm.
Waste gas enters in the floated bioreactor 3 from floated bioreactor 3 lower sides air inlets 1, and material water-soluble in the waste gas is absorbed degraded by the microorganism in the water, and gas is prewetted simultaneously.The hydrophobic contaminant that is not degraded can be crossed dividing plate 11 and enter in the fixed type biological reactor 5, is attached after the microbial degradation on the filler 9, discharges from top vent 6.
Nutrient solution regularly sprays to filler 9 from the shower nozzle 7 of water inlet 8 through fixed type biological reactor 5 tops, and excessive nutrient solution flows in the floated bioreactor 3, for the microorganism in the floated bioreactor 3 provides nutrition by dividing plate 11.Unnecessary water is discharged from delivery port 10.
Concentration is 1025mg/m
3Xylene waste gas enters the composite type bioreactor of the upward flow method of operation from air inlet, and the time of staying is 1-3mins.Room temperature condition is operation down.The xylene concentration of exhaust outlet is 96.6mg/m
3, being lower than the maximum acceptable concentration of harmful substance in the workshop air that country formulates, clearance reaches more than 90%.
Embodiment 2: see also Fig. 1 b, down to the stream method of operation.
The composite type bioreactor waste gas processing equipment that lucite is made, its diameter are 10cm, and cumulative volume is 7 cubes and rises.This equipment comprises by the floated bioreactor 3 that has microorganism, the fixed type biological reactor 5 that filler is housed and circulating pump 20 etc. and constituting.
Be filled with inert fillers 9 such as sponge or perlite in the inside of fixed type biological reactor 5, upper portion side wall is provided with spray liquid import 8, and shower nozzle 7 is arranged at import 8 places, and the sidewall in the bottom has exhaust outlet 6; Between floated bioreactor 3 and fixed type biological reactor 5, air communicating pipe 12 is arranged; Microorganism is based on fungi, and apposition growth is on filler 9 surfaces.
Between two bioreactors dividing plate 11 is installed.
Waste gas enters in the floated bioreactor 3 from suspension type bioreactor 3 lower sides air inlets 1, and pollutant water-soluble in the waste gas is absorbed degraded by the bacterial micro-organism in the water; Gas is prewetted simultaneously.The hydrophobic contaminant that is not degraded entered the fixed type biological reactor 5 from top by state's communicating pipe 12, was attached after the degraded of the fungi microbe on the filler 9, discharged from lower sides exhaust outlet 6.
Concentration is 1103mg/m
3Xylene waste gas enters down to the composite type bioreactor that flows the method for operation from air inlet, and the time of staying is 1-3mins.Room temperature condition is operation down.The xylene concentration of exhaust outlet is 87.3mg/m
3, being lower than the maximum acceptable concentration of harmful substance in the workshop air that country formulates, clearance reaches 92.1%.
Claims (3)
1. a composite type bioreactor waste gas processing equipment comprises fixed type biological reactor (5), circulating pump (20) that filler is housed; It is characterized in that: this equipment is made of floated bioreactor (3) that has microorganism and fixed type biological reactor (5) that filler is housed;
Described floated bioreactor (3) lower sides has an air inlet (1), locates to be equipped with perforated pipe (2) at air inlet (1), and upper portion side wall is provided with delivery port (10), and dock with fixed type biological reactor (5) at the top;
The inside of described fixed type biological reactor (5) is filled with filler (9), and upper portion side wall is provided with spray liquid import (8), has located shower nozzle (7) in import (8), has exhaust outlet (6) at the top;
Between two bioreactors the dividing plate (11) that has the hole is installed; Or
The inside of described fixed type biological reactor (5) is filled with filler (9), and upper portion side wall is provided with spray liquid import (8), has located shower nozzle (7) in import (8), and the sidewall in the bottom has exhaust outlet (6); Between floated bioreactor (3) and fixed type biological reactor (5), air communicating pipe (12) is arranged;
Dividing plate (11) is installed between two bioreactors.
2. as claim 1 described equipment, it is characterized in that: described floated bioreactor is installed in fixed type biological reactor lower end.
3. as claim 1 described equipment, it is characterized in that: the hole on the described dividing plate (11) is more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01141503A CN1410150A (en) | 2001-09-27 | 2001-09-27 | Composite type bioreactor waste gas processing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01141503A CN1410150A (en) | 2001-09-27 | 2001-09-27 | Composite type bioreactor waste gas processing equipment |
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| Publication Number | Publication Date |
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| CN1410150A true CN1410150A (en) | 2003-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN01141503A Pending CN1410150A (en) | 2001-09-27 | 2001-09-27 | Composite type bioreactor waste gas processing equipment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296121C (en) * | 2004-05-20 | 2007-01-24 | 中国科学院生态环境研究中心 | Waste gas treatment equipment of current propelling combined biological reactor |
| CN1329314C (en) * | 2004-02-05 | 2007-08-01 | 哈尔滨工业大学 | Multipurpose bio-trickling filter deordorization device |
| CN101264421B (en) * | 2008-03-20 | 2010-06-16 | 湖南大学 | Biological filtering device for treating toluene gas |
| CN101805690A (en) * | 2010-03-17 | 2010-08-18 | 南京碳环生物质科技有限公司 | Biomass waste digestion reaction system |
| CN102188898A (en) * | 2010-03-10 | 2011-09-21 | 中国科学院生态环境研究中心 | Combined biological deodorization integrated equipment and processing method of odorous gas |
| CN110368804A (en) * | 2019-07-24 | 2019-10-25 | 中科元生生物技术(天津)有限公司 | A kind of microbial deodorizing device for livestock farm |
-
2001
- 2001-09-27 CN CN01141503A patent/CN1410150A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1329314C (en) * | 2004-02-05 | 2007-08-01 | 哈尔滨工业大学 | Multipurpose bio-trickling filter deordorization device |
| CN1296121C (en) * | 2004-05-20 | 2007-01-24 | 中国科学院生态环境研究中心 | Waste gas treatment equipment of current propelling combined biological reactor |
| CN101264421B (en) * | 2008-03-20 | 2010-06-16 | 湖南大学 | Biological filtering device for treating toluene gas |
| CN102188898A (en) * | 2010-03-10 | 2011-09-21 | 中国科学院生态环境研究中心 | Combined biological deodorization integrated equipment and processing method of odorous gas |
| CN101805690A (en) * | 2010-03-17 | 2010-08-18 | 南京碳环生物质科技有限公司 | Biomass waste digestion reaction system |
| CN101805690B (en) * | 2010-03-17 | 2012-10-10 | 南京碳环生物质科技有限公司 | Biomass waste digestion reaction system |
| CN110368804A (en) * | 2019-07-24 | 2019-10-25 | 中科元生生物技术(天津)有限公司 | A kind of microbial deodorizing device for livestock farm |
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