CN101579599A - Novel process for treating fermentation waste gas of amino acid by utilizing biofilter - Google Patents
Novel process for treating fermentation waste gas of amino acid by utilizing biofilter Download PDFInfo
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- CN101579599A CN101579599A CNA2009100202286A CN200910020228A CN101579599A CN 101579599 A CN101579599 A CN 101579599A CN A2009100202286 A CNA2009100202286 A CN A2009100202286A CN 200910020228 A CN200910020228 A CN 200910020228A CN 101579599 A CN101579599 A CN 101579599A
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- biofilter
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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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- 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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Abstract
The invention discloses a novel process for treating fermentation waste gas of amino acid by utilizing a biofilter. Waste gas of zymotic fluid is subjected to Venturi dedusting and electrostatic dedusting, then fume containing extremely high COD and condensate are removed through a gas-liquid separator, and the condensate enters a sewage treatment system; and the fume enters the biofilter when the temperature is reduced to 35 DEG C through spraying, VOC in the fume is decomposed under the action of microorganisms, and gas which reaches the standard is exhausted from an exhaust funnel. The biofiltration and deodorization of the invention can treat certain specific malodorous gas, can also flexibly treat complicated mixed odor by converting biofiltration bed fillers and microbial strains, and have simple operation and no secondary pollution. The treatment process can greatly reduce the content of pollutants in the fume, is proved that the dehumidification rate and the removal rate of the volatile organic compounds can reach over 80 percent through a laboratory test, a pilot scale test and mass production, improve the living environment of surrounding residents, greatly reduce environment protection pressure, and has remarkable social benefit and environmental protection benefit.
Description
Technical field
The invention belongs to the fermentation waste gas of amino acid processing technology field, relate to a kind of biofilter that utilizes and handle the fermentation waste gas of amino acid new technology.
Background technology
In the amino acid fermentation industry, the dirt of waste liquid waste gas is quite serious, domestic more advanced technology is to add the high polymer coagulant fox extracting thallus protein in the high gravity fermentation waste liquid that produces in the amino acid production process at present, adopt four-effect evaporator to carry out evaporation and concentration then under vacuum state, concentrate adopts spray granulation drier to carry out drying-granulating.In the whitewashing dry run, a large amount of moisture evaporates under the elevated temperature heat wind action and forms the steam that has stink.At this situation, dedusting taste removal equipment has been installed on operation, make the waste gas that produces in the whitewashing dry run enter venturi type spray column and electrostatic precipitator dedusting and taste removal successively by induced duct, waste liquid returns four-effect evaporator vacuum evaporation and concentrates, and tail gas is through air-introduced machine, air inducing discharge of pipes.Though a whole set of dedusting taste removal equipment can reduce solid particulate matter and the stink that produces in the production effectively, and condensed water is carried out reuse, effect is comparatively remarkable.Yet the problem of handling the back existence is: this complete equipment adopts fermentation waste water to spray cooling in venturi spray operation, and spray flux is big, and water temperature is higher, and secondary has formed a large amount of steam; Though the employing electrostatic dust collection equipment has been removed the solid particulate matter in the useless flue gas effectively, the also higher (428.0mg/m of solid particulate matter in the useless flue gas of outlet
3); Steam wraps the solid particulate matter that do not eliminated and the micro-peculiar smell organic matter based on burnt burning in the concentrate discharges through chimney together.By measuring purge and trap-gaschromatographic mass spectrometry (P﹠amp of slurry-spraying pelletizing tail gas; T-GC/MS) analytical method, the main matter that determines tail gas is as shown in table 1, identifies that tail gas is aerosol character, and main compound is: the 9-octadecenic acid; Linoleic acid; Beans Zi alkane-3, the 5-diene; 23 kinds of main organic matters such as stearic acid, steam wrap in the solid particulate matter that do not eliminated and the concentrate based on the peculiar smell organic matter of burnt burning together through the chimney discharging, if do not administer, air pollution is quite serious.
Summary of the invention
The purpose of this invention is to provide that a kind of technology is simple, treatment effect good, dehumidifying rate and the high biofilter that utilizes of VOC (VOC) removal efficiency handle the fermentation waste gas of amino acid new technology, to overcome the deficiencies in the prior art.
The present invention has carried out independent research on the basis of above-mentioned background technology, the biofilter is applied to after the electrostatic dust collection equipment useless flue gas be handled, and the solid particulate matter in removing smoke has been obtained good result.
Technical scheme of the present invention is: zymotic fluid waste gas is removed by gas-liquid separator and to be contained high flue gas of COD and condensate liquid behind shaped Venturi dedusting and electrostatic precipitation, and condensate liquid enters sewage disposal system; Flue gas is behind spraying cooling, and temperature enters the biofilter in the time of 33-38 ℃, and the main effect of biofilter is under microbial action, the VOC in the flue gas is divided take off, and the gas of qualified discharge is sent from aiutage.
Said biological filter is made up of for second section first section of biological processor and biological processor, and the compounded mix layer of being made up of quartz sand, pottery and polypropylene is filled in the inside, biofilter, and compounded mix layer and microorganism constitute bacteria bed.
First section of said biological processor, be biological pretreatment stage prime humidification district, because in the running of biofilter, the humidity of appropriateness need be provided for biological packing layer, and its water spray mode, amount and time, circulate continuously water spray or intermittence were sprayed water as required, its water spraying time and water spray number of times are controlled by time controller, require: the humidity of biologic packing material layer remains on 80-100%, and spray water 2-4 every day, each 0.5-4 hour.
Second section of said biological processor; be biological filtering area; mainly be to consume volatile organic matter; biological filter filtering area is the clearance-type trickle; the trickle amount is 1/2nd to 1/8th scopes of tower body capacity; being mainly the weak acid surplus of avoiding microorganisms accumulates; keep the good build environment of microorganism; increase is to the absorption efficiency of water capacity contact scar thing; prevent the crushing of odor removal; the trickle cycle is on handling object and deciding season; the trickle cycle is 2-3 time/day; the trickle time is controlled automatically by time controller; because the existence optimum temperature of most of deodorization microorganism is about 35 ℃; therefore the biofilter temperature should remain on 33-38 ℃; can not be lower than 10 ℃ or be higher than 50 ℃, otherwise biologically active can descend, the PH6-8 value of treatment system is got neutrality; in addition; the acid-base value of treatment system also can be subjected to the influence of microbial action and change, and uses the pH value detecting instrument to do the online detection of pH value, observes the real-time change of pH value.
Biological filter deodorizing of the present invention can be administered some specific malodorous gas, can only administer complicated mixing foul smell flexibly again, to reach the regulation effect that gets twice the result with half the effort, simultaneously by conversion biofiltration bed fillers and microorganism fungus kind, simple to operate, there is not secondary pollution.Through adopting treatment process of the present invention, can greatly reduce the content of pollutant in the flue gas, through lab scale, the big production of pilot scale, dehumidifying rate and VOC removal efficiency all can reach more than 80%, improved surrounding resident living environment, alleviate environmental protection pressure greatly, therefore, the present invention has remarkable social benefit and environmental benefit.
Description of drawings
Accompanying drawing is a process chart of the present invention.
The specific embodiment
Zymotic fluid waste gas is removed by gas-liquid separator and to be contained high flue gas of COD and condensate liquid behind shaped Venturi dedusting and electrostatic precipitation, and condensate liquid enters sewage disposal system; Flue gas enters the biofilter when spraying cooling to 35 ℃, under microbial action, the VOC in the flue gas divided take off, and the gas of qualified discharge is sent from aiutage; The biological filter is made up of for second section first section of biological processor and biological processor, and the compounded mix layer of being made up of quartz sand, pottery and polypropylene is filled in the inside, biofilter, and compounded mix layer and microorganism constitute bacteria bed; First section of biological processor, promptly the Biological Pretreatment stage prime humidification district, require: the humidity of biologic packing material layer remains on 80-100%, and spray water 2-4 every day, 0.5-4 hour at every turn; Second section of biological processor, i.e. biofiltration district, the trickle amount is for being 1/2nd to 1/8th of biological depth filtration, deep bed filtration district total capacity, the trickle cycle is 2-3 time/day, the trickle time is controlled automatically by time controller, and the temperature of biofilter is 33-38 ℃, and PH is 6-8.
Claims (4)
1, the fermentation waste gas of amino acid new technology is handled in a kind of biofilter, it is characterized in that zymotic fluid waste gas behind shaped Venturi dedusting and electrostatic precipitation, removes by gas-liquid separator to contain high flue gas of COD and condensate liquid, and condensate liquid enters sewage disposal system; Flue gas enters the biofilter when spraying cooling to 35 ℃, under microbial action, the VOC in the flue gas divided take off, and the gas of qualified discharge is sent from aiutage, and the temperature that requires the biofilter is 33-38 ℃, and PH is 6-8.
2, the fermentation waste gas of amino acid new technology is handled in biofilter according to claim 1, it is characterized in that said biological filter, form for second section by first section of biological processor and biological processor, the compounded mix layer of being made up of quartz sand, pottery and polypropylene is filled in the inside, biofilter, and compounded mix layer and microorganism constitute bacteria bed.
3, the fermentation waste gas of amino acid new technology is handled in biofilter according to claim 2, it is characterized in that first section of said biological processor, and require: the humidity of biologic packing material layer remains on 80-100%, and spray water 2-4 every day, each 0.5-4 hour.
4, the fermentation waste gas of amino acid new technology is handled in biofilter according to claim 2, it is characterized in that second section of said biological processor, the trickle amount is for being 1/2nd to 1/8th of biological depth filtration, deep bed filtration district total capacity, and the trickle cycle is 2-3 time/day, each 0.5-4 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100202286A CN101579599A (en) | 2009-03-30 | 2009-03-30 | Novel process for treating fermentation waste gas of amino acid by utilizing biofilter |
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|---|---|---|---|
| CNA2009100202286A CN101579599A (en) | 2009-03-30 | 2009-03-30 | Novel process for treating fermentation waste gas of amino acid by utilizing biofilter |
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| CN101579599A true CN101579599A (en) | 2009-11-18 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101898077A (en) * | 2010-07-21 | 2010-12-01 | 南京航空航天大学 | Combined-type biological fermentation waste gas treatment device and method |
| CN102908858A (en) * | 2012-10-17 | 2013-02-06 | 舟山市岱山县天益海洋鱼品有限公司 | Treatment method for biological decayed off-gas |
| CN103418204A (en) * | 2013-08-09 | 2013-12-04 | 中国中轻国际工程有限公司 | Tail gas treatment process for biological aerobic fermentation tank and equipment system thereof |
| CN105714901A (en) * | 2016-03-21 | 2016-06-29 | 常州大学 | Deodorizing device for public washroom |
| CN109647138A (en) * | 2019-01-21 | 2019-04-19 | 北京中科博联环境工程有限公司 | Air water processing system and air water processing method |
| CN109966910A (en) * | 2017-12-28 | 2019-07-05 | 许传高 | A kind of purification process of amino acid fermentation foul smell |
| CN109971666A (en) * | 2017-12-28 | 2019-07-05 | 许传高 | It is a kind of for handling the biological agent of amino acid fermentation foul smell |
| CN109985513A (en) * | 2017-12-31 | 2019-07-09 | 许传高 | It is a kind of for purifying the biochemical method of amino acids production flue gas |
| CN109985512A (en) * | 2017-12-31 | 2019-07-09 | 许传高 | Flue gas treating process during amino acids production |
| CN111006223A (en) * | 2019-10-30 | 2020-04-14 | 上海市政工程设计研究总院（集团）有限公司 | Chimney-free sludge incineration method |
| CN111298612A (en) * | 2020-03-31 | 2020-06-19 | 贵州遵辉环保科技有限公司 | Microbial desulfurization method for flue gas |
| CN111773899A (en) * | 2020-07-06 | 2020-10-16 | 山东康源环保科技有限公司 | Useless trade of danger is handled VOCs combination processing apparatus |
-
2009
- 2009-03-30 CN CNA2009100202286A patent/CN101579599A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101898077A (en) * | 2010-07-21 | 2010-12-01 | 南京航空航天大学 | Combined-type biological fermentation waste gas treatment device and method |
| CN102908858A (en) * | 2012-10-17 | 2013-02-06 | 舟山市岱山县天益海洋鱼品有限公司 | Treatment method for biological decayed off-gas |
| CN102908858B (en) * | 2012-10-17 | 2014-12-10 | 舟山市岱山县天益海洋鱼品有限公司 | Treatment method for biological decayed off-gas |
| CN103418204A (en) * | 2013-08-09 | 2013-12-04 | 中国中轻国际工程有限公司 | Tail gas treatment process for biological aerobic fermentation tank and equipment system thereof |
| CN103418204B (en) * | 2013-08-09 | 2016-08-10 | 中国中轻国际工程有限公司 | The technique of biology aerobic fermentation tank tail gas process and device systems thereof |
| CN105714901A (en) * | 2016-03-21 | 2016-06-29 | 常州大学 | Deodorizing device for public washroom |
| CN109971666A (en) * | 2017-12-28 | 2019-07-05 | 许传高 | It is a kind of for handling the biological agent of amino acid fermentation foul smell |
| CN109966910A (en) * | 2017-12-28 | 2019-07-05 | 许传高 | A kind of purification process of amino acid fermentation foul smell |
| CN109985513A (en) * | 2017-12-31 | 2019-07-09 | 许传高 | It is a kind of for purifying the biochemical method of amino acids production flue gas |
| CN109985512A (en) * | 2017-12-31 | 2019-07-09 | 许传高 | Flue gas treating process during amino acids production |
| CN109647138A (en) * | 2019-01-21 | 2019-04-19 | 北京中科博联环境工程有限公司 | Air water processing system and air water processing method |
| CN111006223A (en) * | 2019-10-30 | 2020-04-14 | 上海市政工程设计研究总院（集团）有限公司 | Chimney-free sludge incineration method |
| CN111298612A (en) * | 2020-03-31 | 2020-06-19 | 贵州遵辉环保科技有限公司 | Microbial desulfurization method for flue gas |
| CN111773899A (en) * | 2020-07-06 | 2020-10-16 | 山东康源环保科技有限公司 | Useless trade of danger is handled VOCs combination processing apparatus |
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Open date: 20091118 |