CN105921005A - Efficient biological purifying technology for purifying malodorous waste gas in organic fertilizer producing process - Google Patents
Efficient biological purifying technology for purifying malodorous waste gas in organic fertilizer producing process Download PDFInfo
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- CN105921005A CN105921005A CN201610392966.3A CN201610392966A CN105921005A CN 105921005 A CN105921005 A CN 105921005A CN 201610392966 A CN201610392966 A CN 201610392966A CN 105921005 A CN105921005 A CN 105921005A
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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
- B01D53/85—Biological processes with gas-solid contact
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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
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
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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
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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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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- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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- Treating Waste Gases (AREA)
Abstract
The invention discloses an efficient biological purifying technology for purifying malodorous waste gas in an organic fertilizer producing process. Organic fertilizer fermentation adopts a sealed anaerobic fermenting technology; a fermenting tank is connected with a turning and throwing workshop through a sealed pipe; the sealed turning and throwing workshop is equipped with an air convecting device; above a material-exposed area, a sealed ventilating pipe is used for transferring waste gas generated by compost in the workshop to a purifying device; the purifying device is a biological filter; a filler is contained in the biological filter; during pretreatment of the filler, the filler is mixed with a biological culture, and a biological membrane is formed after culturing; the waste gas enters the biological filter, microorganisms convert VOCs into CO2 and H2O; moreover, H2S is converted into S (sulphur), S (sulphur) is converted into sulphurous acid, and sulphurous acid is converted into dilute sulphuric acid. The efficient biological purifying technology has the characteristics of short time and high efficiency for treating the malodorous waste gas.
Description
Technical field
The present invention relates to fertilizer chemical industry process field, particularly relate to the deodorization process in a kind of fertilizer production.
Background technology
At present, compost engineering also exists the problems such as odor pollution is serious always.Aerobic composting process can produce substantial amounts of
Foul gas, the odor pollution problem thus brought has become the barrier factors limiting the development of aerobic compost technology, has disliked simultaneously
The smelly organum olfactorium that can stimulate people, causes unhappiness or detest, damages health.Therefore compost engineering must be strengthened stench dirty
The control of dye and improvement.
Organic odoriferous waste gas belongs to the removal of intractable waste gas, particularly its stench, and difficulty is the biggest.In the past, both at home and abroad
Administer organic odoriferous waste gas technology mainly to have deep cooling, burn, adsorb three kinds.Deep Cooling Method equipment is huge, energy consumption is high in employing, investment
Greatly, weak effect.Combustion method may bring secondary pollution and potential safety hazard.Absorption method is the most commonly used method, traditional
Absorption method uses granular active carbon as adsorbing material, has had the dress using activated carbon fiber (AcF) as adsorbing material now
Put.The method that activated carbon adsorption purifies is difficult to solve high windage and secondary pollution problem, and the continuous Adsorption and desorption of activated carbon
With replacing, processing cost is the highest.In order to solve a long-standing large-wind-volume low-concentration organic odoriferous air pollution control difficult problem, have
Use adsorption cleaning and the catalysis process that combines of burning, make treatment facility increasingly complex, invest the biggest.Now, high
The research and development of effect Purification biotechnology equipment are successful and promote the use of, and this difficult problem has obtained effective solution.
Summary of the invention
It is an object of the invention to the defect for above-mentioned prior art, it is provided that a kind of with low cost, application is easy, Neng Gouyou
The foul waste gas high efficient biological purifying process of effect degraded foul smell composition.
The present invention adopts the technical scheme that to achieve these goals:
Stench exhaust-gas efficient biological purifying process in a kind of organic fertilizer production process, comprises the following steps:
The fermentation of fertilizer fertilizer uses and seals anaerobic ferment process, uses sealing pipeline to be connected between fermentation vat with turnover throwing vehicle；
Seal Design it is also adopted by between turnover throwing vehicle；It is mounted with cross-ventilation device, in the naked drain region of material between the turnover throwing vehicle sealed
With sealing the waste gas inflow purifier that the fertilizer that becomes thoroughly decomposed in workshop is produced by air refreshing tube above territory；
Described purifier is biofilter, and biofilter is built with filler, and filler is when pretreatment, with biology
Strain mixes, and makes, through cultivating, substantial amounts of microorganism of growing nonparasitically upon another plant on filler, and forms biomembrane；Waste gas enters biofilter
After, VOCs is changed into CO by microorganism2+H2O.Additionally:
H2S → S sulfur → sulfurous acid → dilute sulfuric acid
Filler described in the present invention is quartz sand, polypropylene fiber silk, the natural volcanic rock mixed filament of ash,
Described biological inoculum is: Candida utilis fermentation liquid 10～40
Streptococcus acidi lactici fermented solution 10～20
Nitrogen-fixing bacteria fermentation liquid 10～20
Rhodopseudomonas palustris fermentation liquid 10～30
The fermentation liquid 10～40 that Bacillus sphaericus belongs to
The fermentation liquid 10～20 of grate sulfur thiobacillus
Melanteritum 0.2～8.0 parts
Citric acid 0.1～5.0 parts, mix above-mentioned each material, and cultivation temperature is 25-35 DEG C, mixing speed 200-240r/
Min, stirs 1-3min, cultivates 3-4d, it is thus achieved that fermentation liquid, i.e. complex micro organism fungicide.
The positive effect of the present invention is: this technology uses biofiltration cleaning process technology, can effectively treatment and purification dislike
Smelly waste gas.Having odour shortly through our biofiltration about 3-5 second as long as these are poisonous, foul smell just can purify.
The removal efficiency having sordes matter poisonous in waste gas can be reached more than 95%, the clearance of hydrogen sulfide in waste gas can be reached
99%.The nontoxic odorless of gas after biological high-efficiency fast filtering, to factory, to atmospheric environment, the life to surrounding resident
Obvious benefit is had with health.Through studying for a long period of time and actual application, process sulfur compound, volatile organic matter etc. are grasped
The biological inoculum of waste gas and a combination thereof and biological existence, the environmental condition of breeding, have complete high-efficiency biomembrane formed and
Maintenance technology, makes the biomembrane turned out can be with self-reproduction metabolism, self renewal, it is not necessary to add strain.
Additionally, ten several fillers have been carried out detailed comparisons's research, have selected the high-performance bio filler currently used.This is filled out
Material surface area is big, durable, good hydrophilic property, thus higher than general packing efficiency more than 10 times, and also this filler can use 10 years
Above, being not required to change, crushing is little.And other fillers used often are crossed and within about 1 year, are accomplished by changing, special messenger is also wanted every day to add battalion
Support, operate and bother very much.Microorganism fungus kind is fixed on high-performance bio carrier by technology of biological membrane, is formed a kind of biological
Film, biomembrane is to be formed a kind of compound system by multiple strain.
1. they jointly complete the degradation process of some odorants by alternate, the next mutually coordinated cooperation of symbiosis,
Become nontoxic by poisonous, stench is become the material of odorless, tasteless, " eat " by odorant, discharge nontoxic material.
The most this high-efficiency biomembrane has more impact resistance than par microorganism, and the fluctuation of exhaust gas concentration or shutdown are again
Startup can adapt to and keep good treatment effect, and sulfur-containing foul material clearance ensures more than 95%, and other material exists
More than 90%.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
The present invention comprises the following steps:
The technological process of production:
Straw crushing → organic fertilizer fermentation (pretreatment) → turning stirring → temperature controls → ferments post processing → post processing
→ send into dehydrator carry out drying and processing → return to mixing granulation system → finished particle send into packaging system packaging after →
Check → put in storage for sale.
Process characteristic
1, major ingredient is feces of livestock and poultry, pulverizes dispensing (straw, waste tobacco leaf etc.), can be properly added some nitrogens,
Ground phosphate rock etc., the nutrient of regulation material and carbon-nitrogen ratio, carbon-phosphorus ratio, pH value etc..This technological design is: dispensing stirs, ferments, is aged
(becoming thoroughly decomposed), turn over throwing, be dried, use automation equipment, reduce waste material carrying number of times.
2, whole organic fertilizer fermentation, becomes thoroughly decomposed, turns over throwing process and all have employed Seal Design.
Organic fertilizer raw material fermentation uses and seals anaerobic ferment process, and fermentation plant is airtight rustless steel steel construction, and sealing sets
Meter uses Japan's optical filtering material, Factory Building gross area 8400m3, turner can automatic turning throw, automatic oxygen supply, deodorization casing takes two
Secondary compound laddering deodorization.Use sealing pipeline to be connected between fermentation vat with turnover throwing vehicle, between turnover throwing vehicle, also use Seal Design.Close
Be mounted with cross-ventilation device between the turnover throwing vehicle of envelope, above the naked drain region of material with sealing air refreshing tube by workshop in become thoroughly decomposed fertilizer
The waste gas that material produces flows into special purifier.
Described purifier is biofilter, and biofilter is built with filler, and filler is when pretreatment, with biology
Strain mixes, and makes, through cultivating, substantial amounts of microorganism of growing nonparasitically upon another plant on filler, and forms biomembrane；Waste gas enters biofilter
After, VOCs is changed into CO by microorganism2+H2O.Additionally:
H2S → S sulfur → sulfurous acid → dilute sulfuric acid
Described filler is quartz sand, polypropylene fiber silk, the natural volcanic rock mixed filament of ash,
Described biological inoculum is: Candida utilis fermentation liquid 30
Streptococcus acidi lactici fermented solution 15
Nitrogen-fixing bacteria fermentation liquid 15
Rhodopseudomonas palustris fermentation liquid 20
The fermentation liquid 30 that Bacillus sphaericus belongs to
The fermentation liquid 15 of grate sulfur thiobacillus
Melanteritum 4 parts
Citric acid 2 parts, mixes above-mentioned each material, and cultivation temperature is 25-35 DEG C, and mixing speed 200-240r/min is stirred
Mix 1-3min, cultivate 3-4d, it is thus achieved that fermentation liquid, i.e. complex micro organism fungicide,
One, ultimate principle
Use environmental organism to educate technology again, bio-filter technology develops the dirt that high-efficiency biomembrane purifies and degrades in waste gas
Dye material.Devising " humidification tower+high efficient biological purifying device " system, this equipment can require according to user and the concrete feelings of engineering
Condition, can be selected for centralized or distributing setting.When the multiple compounds mixed containing gas, liquid, solid three-phase, volatile organic matter
After foul waste gas such as (Volatile OrganicCompounds i.e. VOC) is to manage concentration this filter of importing, raw by cultivating
The biomembrane that long peculiar microorganism in biofilter is formed, this biomembrane one side is foster with the pollutant in waste gas
Material, carries out growth and breeding, is on the other hand made at biological decomposition and deodorize by the volatile organic matter (VOC) having taste in waste gas
Reason, is then exhausted from after being degraded into nonpoisonous and tasteless carbon dioxide and water, reaches to purify the purpose of waste gas.
Two, technical characterstic
1. processing the time extremely short, efficiency is high.As long as waste gas i.e. can reach through biofilter for 3-5 second, purification is poisonous to be had
The biochemical treatment of sordes matter, efficiency can reach more than 95%, the gas odorless, tasteless after process, can be with low-altitude discharged.
2., after the biological inoculum and domestication, biofilm molding of cultivation of screening suitable treatments object, it is not required to concrete management,
Without adding biological inoculum again.
3. biological inoculum and filler were long for service life, up to more than 10 years.
4. system strong shock resistance.
5. system has intermittent work ability, and it can be after 60 days out of service of system, when again running, and its efficiency
Unaffected.So, when factory overhauls or has long holidays, system need not make any special maintenance.
6. system run all right, the probability that is out of order is low.If blower fan and water pump failsafe, system just can keep normal
Stable operation.
7. operating cost is low:
Degradation of contaminant is carried out, it is not necessary to chemical reagent by biology；
The power of fan needed for long-distance transportation through pipeline gas, system meeting can be greatly reduced to use treatment in situ mode
More power saving.
8. construction investment is low.Mainly being made up of humidifier and biofilter, simple in construction, quantities is little, invests low.
9. floor space is little, especially distributed processing system.
10. non-secondary pollution.
Three, technology application
Completed exhaust-gas treatment brainstorm project and engineering include: new and effective biological purifier, Novel biofilm carrier, efficiently
Biological inoculum and the exploitation of biomembrane technology of preparing；Spray paint factory, the biological cleaning of painting factory waste organic solvent gas；Additionally, also use
In the process of restaurant oil flue waste gas, paper mill and other H2The biological cleaning of S odorant waste gas；Pharmaceutical factory, sewage treatment plant (sink
The foul smell of Sha Chi, hydrolysis acidification pool, anaerobic pond, oxidation pond, sludge concentration tank and sludge dewatering) biological cleaning of foul smell；Poultry
Field chicken manure mummification middle and high concentration Odor control, poultry industry exhaust-gas treatment etc..Our high efficient biological purifying technical equipment, can also be used with
At the poisonous foul waste gas of the industries such as feces slag grain dry waste gas, chemical industry, papermaking, food, painting, rubber, toy, furniture
Reason, is particularly suitable for the poisonous foul waste gas process of low concentration, Wind Volume.High efficient biological purifying technical equipment overcomes activated carbon and inhales
Attached method, Production by Catalytic Combustion Process, the shortcoming of diesel absorption process, be the simplest in the poisonous foul waste gas process of current low concentration, Wind Volume
The best approach single, management is easiest to, running cost is minimum.
Four, the exhaust gas biological purifying technology that we use compares with the domestic similar technique developed:
Five, feature (compared with other products)
1, applied range: cannot be only used for the process of oil smoke of catering industry waste gas, is simultaneously available for the pharmacy of medicine, pesticide
Waste gas, feces slag grain dry waste gas, chemical industry, papermaking, food, make the exhaust-gas treatment of the industries such as paint.
2, the time is short, efficiency is high in process: waste gas i.e. can reach waste gas purification for 3-5 second through biofiltration post, processes effect
Rate is up to more than 95%, and passage in time, and clean-up effect will be become better and better, the gas odorless, tasteless after process；
3, operating cost is low: without cleaning, changing any parts in equipment running process, biomembrane is once put into,
Can forever use in the case of uninterrupted use, day operation cost is less than product of the same trade；
4, automated management: without personal management, equipment can run automatically；
5, low noise: unique ventilation, acoustic construction design, the pressure loss is little；
6, non-secondary pollution: equipment itself does not produce pollutant, plays an important role environmental conservation.
Claims (1)
1. stench exhaust-gas efficient biological purifying process in an organic fertilizer production process, it is characterised in that comprise the following steps:
The fermentation of fertilizer fertilizer uses and seals anaerobic ferment process, uses sealing pipeline to be connected between fermentation vat with turnover throwing vehicle；
Seal Design it is also adopted by between turnover throwing vehicle；It is mounted with cross-ventilation device, on the naked drain region of material between the turnover throwing vehicle sealed
Side seals air refreshing tube and the waste gas that the fertilizer that becomes thoroughly decomposed in workshop produces is flowed into purifier；
Described purifier is biofilter, and biofilter is built with filler, and filler is when pretreatment, with biological inoculum
Mixing, makes, through cultivating, substantial amounts of microorganism of growing nonparasitically upon another plant on filler, and forms biomembrane；After waste gas enters biofilter, micro-
VOCs is changed into CO by biology2+H2O.Additionally: H2S → S sulfur → sulfurous acid → dilute sulfuric acid
Filler described in the present invention is quartz sand, polypropylene fiber silk, the natural volcanic rock mixed filament of ash,
Described biological inoculum is: Candida utilis fermentation liquid 10～40
Streptococcus acidi lactici fermented solution 10～20
Nitrogen-fixing bacteria fermentation liquid 10～20
Rhodopseudomonas palustris fermentation liquid 10～30
The fermentation liquid 10～40 that Bacillus sphaericus belongs to
The fermentation liquid 10～20 of grate sulfur thiobacillus
Melanteritum 0.2～8.0 parts
Citric acid 0.1～5.0 parts, mix above-mentioned each material, and cultivation temperature is 25-35 DEG C, mixing speed 200-240r/
Min, stirs 1-3min, cultivates 3-4d, it is thus achieved that fermentation liquid, i.e. complex micro organism fungicide.
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| CN201610392966.3A CN105921005A (en) | 2016-05-25 | 2016-05-25 | Efficient biological purifying technology for purifying malodorous waste gas in organic fertilizer producing process |
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| CN201610392966.3A CN105921005A (en) | 2016-05-25 | 2016-05-25 | Efficient biological purifying technology for purifying malodorous waste gas in organic fertilizer producing process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106520840A (en) * | 2016-11-30 | 2017-03-22 | 天津城建大学 | Mineralization synthesis method for nano sulfate |
| CN108273380A (en) * | 2018-02-14 | 2018-07-13 | 朗昆（北京）新环保科技有限公司 | Growth-promoting flora and waste gas processing method for improving exhaust treatment efficiency |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106520840A (en) * | 2016-11-30 | 2017-03-22 | 天津城建大学 | Mineralization synthesis method for nano sulfate |
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| CN108273380A (en) * | 2018-02-14 | 2018-07-13 | 朗昆（北京）新环保科技有限公司 | Growth-promoting flora and waste gas processing method for improving exhaust treatment efficiency |
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Application publication date: 20160907 |