CN101862591B - Method for biologically treating rubber vulcanization tail gas - Google Patents
Method for biologically treating rubber vulcanization tail gas Download PDFInfo
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- CN101862591B CN101862591B CN2010102076473A CN201010207647A CN101862591B CN 101862591 B CN101862591 B CN 101862591B CN 2010102076473 A CN2010102076473 A CN 2010102076473A CN 201010207647 A CN201010207647 A CN 201010207647A CN 101862591 B CN101862591 B CN 101862591B
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- waste gas
- filter
- light filler
- gas
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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
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- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention discloses a method for biologically treating rubber vulcanization tail gas, which comprises the following steps: 1) establishing a biological filter: selecting a sealed container, arranging mutually parallel nano argil light filler layers on the cross section in the sealed container, dripping bacterial suspension on the nano argil light filler on the lower part, and dripping fungal bacterial suspension on the nano argil light filler on the upper part; 2) rubber vulcanization tail gas treatment: anaerobic gas and waste gas are sequentially passed through two layers of nano argil light packing layers and discharged from a tail gas discharge port at the top of the sealed container. When the waste gas passes through the biological filter, the pollutant is transferred to the biological membrane through diffusion; the microorganism bacteria attached to the surface of the filler are used for adsorption, and biochemical reaction is carried out through microbial enzyme, so that the purposes of adsorbing, decomposing and purifying the malodorous waste gas are achieved, and the purification rate is up to more than 98%.
Description
Technical field
The present invention relates to a kind of method of handling rubber vulcanized tail gas, relate in particular to a kind of method of utilizing the biological treatment rubber vulcanized tail gas.
Background technology
Rubber is in the sulfuration of sulfuration cylinder; Pressure; Temperature is higher; Have a large amount of rubber particles, vulcanization of rubber thing, oxide and other volatile matters to emit with high temperature, HCS when opening cylinder, this gas has harmful and off-odor that the people is extremely felt bad, has a strong impact on direct labor's health and surrounding enviroment.For this reason; Domestic rubber factory has also carried out extensive work for administering the sulfuration foul smell; Successively adopted firing method, water absorbs and the method for charcoal absorption is administered, but because these methods have certain limitation and defective; Firing method complicated operation, poor stability, and can not guarantee that foul smell absolutely removes; Water absorption method can consume great amount of water resources and bring secondary pollution, and the foul smell that has is insoluble in water, and water also can be run out from water after absorbing, and carries out water treatment after water is contaminated again, and difficulty is very big; Though active carbon can adsorb multiple foul smell, adsorption capacity is limited, when be adsorbed onto to a certain degree reach capacity after, active carbon has just lost activity, need change or desorption is handled, foul smell can be overflowed again during desorption, and operating cost is higher.
The existing abroad quite long developing history of biological filter deodorizing technology, domestic also the beginning studied and uses, and in the improvement of administering vulcanization of rubber stink, obtained certain success.But present much employing nano materials, activated carbon or synthetic resin adopt single bacterial classification as biological treatment as three-dimensional filler, can only handle the unification compound, and the exhaust gas concentration of handling is lower, and exhaust purification efficiency is not high.
Summary of the invention
To the above-mentioned deficiency that prior art exists, the invention provides a kind of can be to the waste gas purification of multiple pollutant, purification efficiency is high, small investment, operating cost is low, the method for the utilization biological treatment rubber vulcanized tail gas of long service life.
The method of utilization biological treatment rubber vulcanized tail gas provided by the invention comprises the steps:
1) set up biofilter:
1.1) choose airtight container, first filter and second filter that is parallel to each other is set on the cross section in airtight container, said first filter is arranged on the bottom of airtight container, and second filter is arranged on the top of airtight container; Be provided with the waste gas air admission hole in the bottom of airtight container, be provided with exhaust port at the top of airtight container;
1.2) choose the nanometer potter's clay light filler that diameter is 3～5mm, be laid on respectively on first filter and second filter, the nanometer potter's clay light filler thick-layer degree after the laying is 300～500mm; The bacterium bacteria suspension is splashed in the nanometer potter's clay light filler on first filter, make the surface of nanometer potter's clay light filler form biological membranous layer; The fungi bacteria suspension is splashed in the nanometer potter's clay light filler on second filter, make the surface of nanometer potter's clay light filler form biological membranous layer;
1.3) above the nanometer potter's clay light filler layer on first filter and second filter, spray head is set respectively, spray water to biological membranous layer through spray head;
2) rubber vulcanized tail gas is handled:
2.1) operating temperature in the biofilter is remained on 3～40 ℃, the pH value is 5～8, humidity remains on 60～85%;
2.2) will vulcanize the bled steam of discharging in the cylinder through after expansion drum step-down and the cools down, feed the waste gas surge chamber, again waste gas is cushioned chamber waste gas and feed in the waste gas air admission hole bottom the biofilter; Sulfur tank waste water is fed in the anaerobic pond, and the anaerobic gas in the anaerobic pond feeds in the waste gas air admission hole of biofilter bottom; Make anaerobic gas and waste gas remain on 0.044～0.12m/s through the gas flow rate that the waste gas air admission hole gets in the airtight container; Anaerobic gas and waste gas are discharged from the exhaust port at airtight container top successively through the nanometer potter's clay light filler layer on first filter and second filter at last.
Further, the specific surface of said nanometer potter's clay light filler is 50～150m
2/ cm
3
Further, the operating temperature in the said biofilter is 30 ℃, and the pH value is 6.5.
Further, use every day spray head to spray water 2～3 times each 5～10 minutes to biological membranous layer.
Compared with prior art, the method for utilization biological treatment rubber vulcanized tail gas of the present invention has following advantage:
1, the present invention adopts two-layer nanometer potter's clay light filler up and down as the decontamination of biological filler; The light filler of two-layer nanometer potter's clay is adhered to respectively or grow particle-bound bacteria and fungi; When waste gas passes through biofilter,, transfer to polluter on the biomembrane through diffusion; Be attached to the microbial bacterial absorption of filling surface, carry out biochemical reaction, be degraded to CO to the harmful components in the waste gas through microbial enzyme
2, H
2O, S, N
2Deng the harmless small-molecule substance of odorless, thereby reach absorption, decomposition, purify the purpose of odorant, purifying rate is up to more than 98%, and the gas after the processing reaches the discharge standard of national environmental protection department defined.
2, can handle the waste gas that contains multiple pollutant simultaneously, overcome present waste gas biofiltration research and mainly concentrated on the present situation that some unification compounds are handled.
3, can handle in, low concentration gas, like H
2S concentration can reach 1500ppm, handles the moderate concentration waste gas for biofiltration process and starts Xin Lu.
4, the packing layer thin thickness is generally 300～500mm, has solved 1～3 meter filler that is caused of present biofilter packing layer thickness and has been easy to stop up, and it is excessive to cross wind resistance, is unfavorable for the difficulty of practical application.
5, after biological inoculum is once hung the film moulding, in servicely do not need to add again biological inoculum, microbial inoculum, chemical substance, reduce user's operating cost and management expectancy; And the processing time is short, and efficient is high.
6, bacterial classification filler long service life can reach more than 10 years.
7, this thing filter has the intermittence ability to work, and it can be after 10 days out of service, and when moving once more, its efficient is unaffected.So, when Subscriber Unit overhauls or has long holidays, handle this thing filter and need not do any special maintenance.
8, operating cost is low, does not need the personal management.Need not replenish any chemistry or biological agent.Except that collecting the required blower fan electricity charge of waste gas, the systematic running cost usefulness of day processing 20,000 side's waste gas, only need about 20-30 yuan every day.
9, this thing filtration device structure is simple, small investment, and later maintenance is little.
Description of drawings
Fig. 1 is the structural representation of biofilter of the present invention;
Fig. 2 is a workflow diagram of the present invention.
In the accompanying drawing, the 1-airtight container 2-first filter 3-second filter 4-waste gas air admission hole 5-exhaust port 6-spray head 7-discharge outlet
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done to describe in further detail.
Utilize the method for biological treatment rubber vulcanized tail gas, comprise the steps:
1) set up biofilter, as shown in Figure 1.
1.1) choose airtight container 1, first filter 2 and second filter 3 that is parallel to each other is set on the cross section in airtight container 1, said first filter 2 is arranged on the bottom of airtight container 1, and second filter 3 is arranged on the top of airtight container 1; Be provided with waste gas air admission hole 4 and discharge outlet 7 in the bottom of airtight container 1, be provided with exhaust port 5 at the top of airtight container 1.
1.2) choose the nanometer potter's clay light filler that diameter is 3～5mm, be laid on respectively on first filter and second filter, the nanometer potter's clay light filler layer thickness after the laying is 300～500mm; The bacterium bacteria suspension is splashed in the nanometer potter's clay light filler on first filter, make the surface of nanometer potter's clay light filler form biological membranous layer; The fungi bacteria suspension is splashed in the nanometer potter's clay light filler on second filter, make the surface of nanometer potter's clay light filler form biological membranous layer.
1.3) above the nanometer potter's clay light filler layer on first filter and second filter, spray head 6 is set respectively, spray water to biological membranous layer through spray head 6.Should take the clearance-type spray when using spray head, spray water 2～3 time to biological membranous layer every day, and each 5～10 minutes, unnecessary water was discharged through discharge outlet 7.
2) rubber vulcanized tail gas is handled, workflow diagram as shown in Figure 2.
2.1) operating temperature in the biofilter is remained on 3～40 ℃, the pH value is 5～8, humidity remains on 60～85%;
2.2) will vulcanize the bled steam of discharging in the cylinder through after expansion drum step-down and the cools down, feed the waste gas surge chamber, again waste gas is cushioned chamber waste gas and feed in the waste gas air admission hole bottom the biofilter; Sulfur tank waste water is fed in the anaerobic pond, and the anaerobic gas in the anaerobic pond feeds in the waste gas air admission hole of biofilter bottom; Make anaerobic gas and waste gas remain on 0.044～0.12m/s through the gas flow rate that the waste gas air admission hole gets in the airtight container; Anaerobic gas and waste gas are discharged from the exhaust port at airtight container top successively through the nanometer potter's clay light filler layer on first filter and second filter at last.
In order to make bacterium and fungi can better adhere to and grow attached to the light filler of nanometer potter's clay, it be 50～150m that the specific surface of nanometer potter's clay light filler preferably uses specific surface
2/ cm
3
Embodiment 1
Structure according to shown in Figure 1 is set up biofilter, and the specific surface of nanometer potter's clay light filler is chosen for 50～150m
2/ cm
3, use every day spray head to spray water 2～3 times to biological membranous layer, each 5～10 minutes, make the operating temperature in the biofilter remain on 3～5 ℃, the pH value is 5, humidity remains on 60%.
The bled steam of discharging in the sulfuration cylinder is passed through the expansion drum step-down; Be depressured to about 1 atmospheric pressure, feed the cooling of heat exchanger and condenser again and be reduced to below 40 ℃, feed the waste gas surge chamber; Waste gas buffering chamber waste gas is extracted by blower fan, and feeds in the waste gas air admission hole of biofilter bottom.Sulfur tank waste water is fed in the anaerobic pond, and the cooling water in the waste gas surge chamber feeds in the anaerobic pond, and the anaerobic gas in the anaerobic pond is extracted by blower fan, and feeds in the waste gas air admission hole of biofilter bottom.Anaerobic gas and waste gas remain on 0.044～0.05m/s through the gas flow rate that the waste gas air admission hole gets in the airtight container; Anaerobic gas and waste gas are successively through the nanometer potter's clay light filler layer on first filter and second filter; By adhering to or growing attached to bacterium in the light filler of nanometer potter's clay and fungi absorption; Carry out biochemical reaction through microbial enzyme, reach absorption, decomposition, purify foul waste gas, purified gas is discharged from the exhaust port at airtight container top; Detect from the gas of exhaust port sampling discharging, purifying rate reaches 98.3%.
Structure according to shown in Figure 1 is set up biofilter, and the specific surface of nanometer potter's clay light filler is chosen for 50～150m
2/ cm
3, use every day spray head to spray water 2～3 times to biological membranous layer, each 5～10 minutes, make the operating temperature in the biofilter remain on 10～15 ℃, the pH value is 5.5, humidity remains on 70%.
The bled steam of discharging in the sulfuration cylinder is passed through the expansion drum step-down; Be depressured to about 1 atmospheric pressure, feed the cooling of heat exchanger and condenser again and be reduced to below 40 ℃, feed the waste gas surge chamber; Waste gas buffering chamber waste gas is extracted by blower fan, and feeds in the waste gas air admission hole of biofilter bottom.Sulfur tank waste water is fed in the anaerobic pond, and the cooling water in the waste gas surge chamber feeds in the anaerobic pond, and the anaerobic gas in the anaerobic pond is extracted by blower fan, and feeds in the waste gas air admission hole of biofilter bottom.Anaerobic gas and waste gas remain on 0.055～0.06m/s through the gas flow rate that the waste gas air admission hole gets in the airtight container; Anaerobic gas and waste gas are successively through the nanometer potter's clay light filler layer on first filter and second filter; By adhering to or growing attached to bacterium in the light filler of nanometer potter's clay and fungi absorption; Carry out biochemical reaction through microbial enzyme, reach absorption, decomposition, purify foul waste gas, purified gas is discharged from the exhaust port at airtight container top; Detect from the gas of exhaust port sampling discharging, purifying rate reaches 98.7%.
Structure according to shown in Figure 1 is set up biofilter, and the specific surface of nanometer potter's clay light filler is chosen for 50～150m
2/ cm
3, use every day spray head to spray water 2～3 times to biological membranous layer, each 5～10 minutes, make the operating temperature in the biofilter remain on 35～40 ℃, the pH value is 8, humidity remains on 85%.
The bled steam of discharging in the sulfuration cylinder is passed through the expansion drum step-down; Be depressured to about 1 atmospheric pressure, feed again after cools down is reduced to 40 ℃, feed the waste gas surge chamber; Waste gas buffering chamber waste gas is extracted by blower fan, and feeds in the waste gas air admission hole of biofilter bottom.Sulfur tank waste water is fed in the anaerobic pond, and the cooling water in the waste gas surge chamber feeds in the anaerobic pond, and the anaerobic gas in the anaerobic pond is extracted by blower fan, and feeds in the waste gas air admission hole of biofilter bottom.Anaerobic gas and waste gas remain on 0.07～0.12m/s through the gas flow rate that the waste gas air admission hole gets in the airtight container; Anaerobic gas and waste gas are successively through the nanometer potter's clay light filler layer on first filter and second filter; By adhering to or growing attached to bacterium in the light filler of nanometer potter's clay and fungi absorption; Carry out biochemical reaction through microbial enzyme, reach absorption, decomposition, purify foul waste gas, purified gas is discharged from the exhaust port at airtight container top; Detect from the gas of exhaust port sampling discharging, purifying rate reaches 99.3%.
Embodiment 4
Structure according to shown in Figure 1 is set up biofilter, and the specific surface of nanometer potter's clay light filler is chosen for 50～150m
2/ cm
3, use every day spray head to spray water 2～3 times to biological membranous layer, each 5～10 minutes, make the operating temperature in the biofilter remain on 30 ℃, the pH value is 6.5, humidity remains on 80%.
The bled steam of discharging in the sulfuration cylinder is passed through the expansion drum step-down; Be depressured to about 1 atmospheric pressure, feed again after cools down is reduced to 40 ℃, feed the waste gas surge chamber; Waste gas buffering chamber waste gas is extracted by blower fan, and feeds in the waste gas air admission hole of biofilter bottom.Sulfur tank waste water is fed in the anaerobic pond, and the cooling water in the waste gas surge chamber feeds in the anaerobic pond, and the anaerobic gas in the anaerobic pond is extracted by blower fan, and feeds in the waste gas air admission hole of biofilter bottom.Anaerobic gas and waste gas remain on 0.05m/s through the gas flow rate that the waste gas air admission hole gets in the airtight container; Anaerobic gas and waste gas are successively through the nanometer potter's clay light filler layer on first filter and second filter; By adhering to or growing attached to bacterium in the light filler of nanometer potter's clay and fungi absorption; Carry out biochemical reaction through microbial enzyme, reach absorption, decomposition, purify foul waste gas, purified gas is discharged from the exhaust port at airtight container top; Detect from the gas of exhaust port sampling discharging, purifying rate reaches 99.7%.
Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the aim and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (3)
1. a method of utilizing the biological treatment rubber vulcanized tail gas is characterized in that, comprises the steps:
1) set up biofilter:
1.1) choose airtight container, first filter and second filter that is parallel to each other is set on the cross section in airtight container, said first filter is arranged on the bottom of airtight container, and second filter is arranged on the top of airtight container; Be provided with the waste gas air admission hole in the bottom of airtight container, be provided with exhaust port at the top of airtight container;
1.2) choose the nanometer potter's clay light filler that diameter is 3～5mm, be laid on respectively on first filter and second filter, the nanometer potter's clay light filler layer thickness after the laying is 300～500mm; The bacterium bacteria suspension is splashed in the nanometer potter's clay light filler on first filter, make the surface of nanometer potter's clay light filler form biological membranous layer; The fungi bacteria suspension is splashed in the nanometer potter's clay light filler on second filter, make the surface of nanometer potter's clay light filler form biological membranous layer;
1.3) above the nanometer potter's clay light filler layer on first filter and second filter, spray head is set respectively, spray water to biological membranous layer through spray head; Use every day spray head to spray water 2～3 times each 5～10 minutes to biological membranous layer;
2) rubber vulcanized tail gas is handled:
2.1) operating temperature in the biofilter is remained on 3～40 ℃, the pH value is 5～8, humidity remains on 60～85%;
2.2) will vulcanize the bled steam of discharging in the cylinder through after expansion drum step-down and the cools down, feed the waste gas surge chamber, again waste gas is cushioned chamber waste gas and feed in the waste gas air admission hole bottom the biofilter; Sulfur tank waste water is fed in the anaerobic pond, and the anaerobic gas in the anaerobic pond feeds in the waste gas air admission hole of biofilter bottom; Make anaerobic gas and waste gas remain on 0.044～0.12m/s through the gas flow rate that the waste gas air admission hole gets in the airtight container; Anaerobic gas and waste gas are discharged from the exhaust port at airtight container top successively through the nanometer potter's clay light filler layer on first filter and second filter at last.
2. the method for utilization biological treatment rubber vulcanized tail gas according to claim 1, it is characterized in that: the specific surface of said nanometer potter's clay light filler is 50～150m
2/ cm
3
3. the method for utilization biological treatment rubber vulcanized tail gas according to claim 1, it is characterized in that: the operating temperature in the said biofilter is 30 ℃, and the pH value is 6.5.
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| CN102921295B (en) * | 2012-11-27 | 2014-10-29 | 中国环境科学研究院 | Two-chamber biological reaction integrated odor treatment device |
| CN110652824A (en) * | 2019-10-29 | 2020-01-07 | 徐州金源臭氧设备有限公司高新区分公司 | Energy-concerving and environment-protective chemical industry tail gas biomass processing apparatus |
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Effective date of registration: 20220506 Address after: 400056 No. 98-2, Shixiang Road, Banan District, Chongqing Patentee after: Chongqing Weilida Electronic Technology Co.,Ltd. Address before: Jiulongpo Baihe Village in Shiqiaopu Chongqing City No. 48 400039 Patentee before: CHONGQING ZHENGTIAN ENVIRONMENTAL PROTECTION INDUSTRY Co.,Ltd. |
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