CN102019140B - Composite filler for biologically filtering industrial waste gas - Google Patents
Composite filler for biologically filtering industrial waste gas Download PDFInfo
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- CN102019140B CN102019140B CN2009101924241A CN200910192424A CN102019140B CN 102019140 B CN102019140 B CN 102019140B CN 2009101924241 A CN2009101924241 A CN 2009101924241A CN 200910192424 A CN200910192424 A CN 200910192424A CN 102019140 B CN102019140 B CN 102019140B
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- industrial waste
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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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Abstract
The invention provides composite filler for biologically filtering industrial waste gas, which has large porosity, low stacking density, high strength and strong acid-base buffer capability and is formed by combining inorganic media with organic media, wherein the organic media comprise bark and composting manure; the weight ratio of various media of the bark to composting manure to ceramic particles to plastic balls to shell is (98-104):(53-60):(84-90):(50-56):(100-105). The stacking density of the composite filler is 450kg/m<3>, the porosity is 55.5 percent and the ratio of carbon to nitrogen is 100:5. Compared with the current common biofiltration filler, the composite filler has the characteristics of large porosity, low stacking density, high strength and the like. Particularly, with strong acid-base buffer capability, the problem which cannot be solved by the prior art can be solved. The invention not only can provide reasonable environment conditions for degraded strains to stably grow for a long term and benefit the proliferation and biomembrane forming of the degraded strains on the surface of the filler, but also benefit the diffusion of gas on the biomembrane on the surface of the filler.
Description
Technical field
The present invention relates to chemical industry and environmental technology field, relate in particular to a kind of industrial waste gas biological filtration combined stuffing.
Technical background
China has implemented since new " urban wastewater treatment firm pollutant emission standard ", the various places Sewage Plant generally adopt bio-filter technology to process to produce with foul gas such as hydrogen sulfide, mercaptan, thioether and ammonias.The used filler of biofiltration device is different, substantially take organic substance as main, comprise bark, compost, cocoanut fiber, stalk etc., organic filler is long-term uses rear effect in microorganism to issue the first portion degraded, thereby causes filler obstruction, packed bed gas to increase by resistance and local generation anaerobic zone.Owing to easily causing filler pH, the acidic materials that produce in the waste gas material biofiltration process descend in addition, thus the activity of inhibition microbial degradation bacterium.Inorganic filler has the characteristics such as intensity greatly, is not biodegradable, and suitably increases inorganic filler and can effectively improve above problem, improves the service life of biofiltration filler.
In addition, although having begun to adopt take biofiltration as main technology at present, Sewage Plant carries out the improvement of foul gas, but for other such as industrial enterprises such as plastic resin, paint, pharmacy, livestock and poultry cultivation and petrochemical industry, painting dressing automobiles, mostly also do not set up emission-control equipment, although much be positioned at city suburbs, but all types of industries exhaust gas diffusion of its generation causes potential harm to Area Ambient Air Quality equally to atmosphere.Bio-filter technology is a kind of generally acknowledged environmental friendliness technology abroad, because the abundant genetic diversity of microorganism, various waste gas materials can be degraded under suitable condition by corresponding bacterial classification and are purified processing.Filler is the core of biofiltration technique, be microbial adhesion and growth carrier, the efficient of pollutant mass transfer and degraded is had critical impact.Therefore, the suitable biofiltration filler of exploitation is the prerequisite that bio-filter technology will be applied in all types of industries exhaust-gas treatment field future.
Summary of the invention
The purpose of this invention is to provide the industrial waste gas biological filtration combined stuffing that a kind of porosity is large, bulk density is little, intensity is large, the soda acid buffer capacity is strong.
Combined stuffing of the present invention is combined by inorganic medium and organic media, and wherein organic media comprises bark and compost, and each medium-weight is than being bark: compost: haydite: baton round: shell=98 ~ 104: 53 ~ 60: 84 ~ 90: 50 ~ 56: 100 ~ 105.The combined stuffing bulk density is 450kg/m
3, porosity is 55.5%, carbon-nitrogen ratio is 100: 5.
Shell of the present invention is that basicity is the shell in 440g/kg～680g/kg (in calcium carbonate) scope.
The characteristics of combined stuffing of the present invention are: the acidic materials that produce with biodegradation process in the shell energy, and the soda acid buffer capacity is strong, and the needed neutral environment of energy stable maintenance degraded bacterial classification long term growth is so that the combined stuffing maintenance is permanently effective.
Other characteristics of combined stuffing of the present invention also have:
This combined stuffing is drawn materials conveniently, and cost is low.
Organic media and inorganic medium reasonable mixture ratio, nutrients mass-energy are effectively kept the long-term stability growth of exhaust gas decomposition bacterial classification.
Porosity is large, and distribution of gas is even, can prevent the shortcomings such as filler stops up, the short stream of gas.
Combined stuffing of the present invention combines the characteristics of different component and carries out Combinatorial Optimization.Compare with biofiltration filler commonly used at present, have the characteristics such as porosity is large, bulk density is little, intensity is large, cost is low.Especially the soda acid buffer capacity is strong, has solved the insurmountable problem of prior art.This filler is combined by proper ratio by inorganic medium and organic media, can be the rational environmental condition of degraded bacterial classification growth steady in a long-term, be conducive to degrade bacterial classification in the propagation of filling surface and form biomembrane, also be conducive to gas in the biomembranous diffusion of filling surface.Easily degraded and stop up the local shortcoming such as anaerobic zone that easily produces of space, the short stream of gas and filler of the filler that has occurred when having overcome independent use natural organic filler, and the filler that occurs when the using inert inorganic filler separately shortcomings such as easy to be filmed, maintenance management difficulty be not large.
The specific embodiment
Below in conjunction with embodiment content of the present invention is described further:
Embodiment 1: to the processing of paint industry production workshop waste gas
The present embodiment composition proportion is: bark is block, particle diameter is less than 50mm, compost is graininess, particle diameter is less than 5mm, inorganic medium comprises haydite, baton round and shell, and haydite and baton round are spherical in shape, and diameter is respectively less than 25mm and 500mm, it is irregular that shell is, and size range is between 10mm ~ 20mm.Each components by weight is bark: compost: haydite: baton round: shell=98: 53: 84: 50: 100.Described shell basicity is 440g/kg (in calcium carbonate).The combined stuffing bulk density is 450kg/m
3, porosity is 55.5%, carbon-nitrogen ratio is 100: 5.
Combined stuffing fills in the biofiltration reactor of prior art, the high 2000mm of reactor, and long 1500mm, wide 1500mm, filler loading height are 1200mm.Processing Industry Waste tolerance is 400m
3/ h, gas is 24 seconds in the time of staying of combined stuffing.Combined stuffing is used for the processing of coating material production workshop waste gas after the domestication of degraded bacterial classification biofilm, when the mean concentration of TVOCs in the waste gas (total volatile organism) about 58ppm, drop to after treatment 3.48ppm, average removal rate is 94%.
Embodiment 2: to the processing of common waste gas
The present embodiment composition proportion is: each component form requires with embodiment 1, and weight ratio is bark: compost: haydite: baton round: shell=104: 60: 90: 56: 105.Described shell basicity is 680g/kg (in calcium carbonate).The combined stuffing bulk density is 450kg/m
3, porosity is 55.5%, carbon-nitrogen ratio is 100: 5.
Combined stuffing fills in the biofiltration reaction and is respectively applied to process the common industrial waste gas components such as toluene, dimethylbenzene, styrene, acetone, butanone, chloroform, the high 800mm of reactor, internal diameter 190mm, filler loading height are 340mm, and gas is 30s in the empty bed time of staying of combined stuffing bed.Treatment effect is as shown in table 1:
Table 1 combined stuffing biofiltration reactor is to the clean-up effect (mg/m of different common industrial waste gas
3)
The result shows that combined stuffing has very strong removal effect to multiple volatile organic waste gas, and clearance is slightly different because of the different material characteristic.
Embodiment 3: to the processing of sewage plant bad smell
The two cover bio-trickling pool devices that run parallel, specification: height 2100mm, internal diameter 900mm.Bed stuffing height 1m, filler volume 0.65m3.(each medium-weight is than being bark: compost: haydite: baton round: shell=100: 56: 87: 54: 103 for equipment 1 filling combined stuffing of the present invention.Described shell basicity is counted 560g/kg with calcium carbonate.All the other require with embodiment 1).(weight ratio is bark to equipment 2 filling prior art combined stuffings: compost: haydite=100: 48: 130).Two complete equipment service conditions are identical, and gas residence time is 20s.Treatment effect is as shown in table 2:
Table 2 combined stuffing is to the treatment effect of sewage plant bad smell
The result shows that combined stuffing of the present invention and existing commercially available filler all have good effect in bio-trickling filter, but commercially available filler pH decline obviously, finally cause clearance slightly to descend, and combined stuffing of the present invention can effectively keep stable pH.
Claims (3)
1. an industrial waste gas biological filters and uses combined stuffing, this combined stuffing is comprised of organic media and inorganic medium, it is characterized in that: its prescription is as follows: by bark, compost, haydite, baton round and shell by weight 98 ~ 104: 53 ~ 60: 84 ~ 90: 50 ~ 56: 100 ~ 105 ratios form, and carbon-nitrogen ratio is 100: 5.
2. industrial waste gas biological as claimed in claim 1 filters and uses combined stuffing, and it is characterized in that: described combined stuffing bulk density is 450kg/m
3, porosity is 55.5%.
3. industrial waste gas biological as claimed in claim 1 filters and uses combined stuffing, and it is characterized in that: the basicity of described shell is counted with calcium carbonate: 440g/kg～680g/kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101924241A CN102019140B (en) | 2009-09-16 | 2009-09-16 | Composite filler for biologically filtering industrial waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101924241A CN102019140B (en) | 2009-09-16 | 2009-09-16 | Composite filler for biologically filtering industrial waste gas |
Publications (2)
| Publication Number | Publication Date |
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| CN102019140A CN102019140A (en) | 2011-04-20 |
| CN102019140B true CN102019140B (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101924241A Active CN102019140B (en) | 2009-09-16 | 2009-09-16 | Composite filler for biologically filtering industrial waste gas |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285730B (en) * | 2012-02-29 | 2016-05-04 | 杰智环境科技股份有限公司 | The filtrate of bacteria bed and preparation method and microorganism are in filtrate growth control method |
| CN102701433B (en) * | 2012-05-31 | 2014-02-12 | 中国环境科学研究院 | Biological filter deodorization filler and preparation method |
| CN102941013B (en) * | 2012-12-04 | 2015-10-07 | 中冶赛迪工程技术股份有限公司 | The compounded mix of biofilter and the method and apparatus of biological deodorizing thereof |
| CN106362581A (en) * | 2016-08-31 | 2017-02-01 | 北京北林绿源生态技术研究院有限责任公司 | Biofilter packing composition |
| CN113941250A (en) * | 2021-11-24 | 2022-01-18 | 广州市新之地环保产业股份有限公司 | Hydrophobic VOC adsorption degradation biological filler and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1393280A (en) * | 2001-07-02 | 2003-01-29 | 中国石油化工股份有限公司 | Process for cleaning waste gas containing complex components |
| CN1864818A (en) * | 2006-04-14 | 2006-11-22 | 浙江工业大学 | A plate type biofiltration tower and waste gas treatment process thereof |
| CN101138698A (en) * | 2006-09-05 | 2008-03-12 | 中国石油天然气股份有限公司 | Complex effluvium waste gas purifying method |
-
2009
- 2009-09-16 CN CN2009101924241A patent/CN102019140B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1393280A (en) * | 2001-07-02 | 2003-01-29 | 中国石油化工股份有限公司 | Process for cleaning waste gas containing complex components |
| CN1864818A (en) * | 2006-04-14 | 2006-11-22 | 浙江工业大学 | A plate type biofiltration tower and waste gas treatment process thereof |
| CN101138698A (en) * | 2006-09-05 | 2008-03-12 | 中国石油天然气股份有限公司 | Complex effluvium waste gas purifying method |
Non-Patent Citations (1)
| Title |
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| 王琳，许延营.《城市污水处理厂恶臭气体的生物过滤处理》.《全国排水委员会2006年年会论文集》.2006,483-487. * |
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| CN102019140A (en) | 2011-04-20 |
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