CN105363342A - Organic waste gas treatment method - Google Patents
Organic waste gas treatment method Download PDFInfo
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- CN105363342A CN105363342A CN201410427676.9A CN201410427676A CN105363342A CN 105363342 A CN105363342 A CN 105363342A CN 201410427676 A CN201410427676 A CN 201410427676A CN 105363342 A CN105363342 A CN 105363342A
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- exhaust gas
- organic exhaust
- filter tank
- waste gas
- biochemical filter
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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
The invention provides an organic waste gas treatment method. The process comprises the steps that firstly, organic waste gas passes through an oil mist separator before entering a biochemical filter system and then enters the biochemical filter system for biochemical treatment after oil and gas in the organic waste gas are removed, the temperature of a biochemical filter bed is between 10 DEG C and 35 DEG C, the humidity is between 70 and 100, and the standing time is between 30s and 80s; secondly, the organic waste gas treated in the first step is subjected to an activated carbon adsorption process through a draught fan and is discharged into the atmosphere after being purified by means of activated carbon adsorption. The organic waste gas treatment method has high impact resistance, and the treatment efficiency of organic waste gas pollutants can reach 80% or above.
Description
Technical field
The present invention relates to a kind of method processing industrial organic exhaust gas, particularly a kind of method utilizing Biochemical method organic exhaust gas.
Technical background
Pollutant in waste gas includes organic pollutants and inorganic pollution.Volatile organic contaminant and stench are mainly derived from the aspects such as life and industrial production.Life source mainly contains night soil-treatment, house refuse etc.; Industrial source mainly contains the industries such as petrochemical industry, slaughtering animal and meat packing, coking, coal gas, chemical fertilizer, pharmacy, sewage disposal and garbage disposal.Volatile organic contaminant and stench, as materials such as benzene class, aromatic hydrocarbon, oxygen-containing hydrocarbon, organic sulfur compound, hydrogen sulfide, ammonia, spill in air, serious harm health and ecological environment.
Containing the waste gas uncontrollable discharge of organic pollution (containing " triphen "), often cause the deterioration of petroleum chemical enterprise's occupational health condition, time serious, easily cause the pollution of enterprise's ambient atmosphere environment.Current National petroleum chemical enterprise sewage-treatment plant, especially oil-polluted water device are all generally open types, very easily cause the decline of atmosphere quality, and particularly during relevant apparatus fluctuation of service, situation is more outstanding.In addition, along with national economy and social development, constantly improving and the development of green technology of relevant environment preservation law regulation, corresponding air contaminant treatment require and standard also more and more higher.Therefore exploitation is a kind of with low cost, easy and simple to handle, and stable VOCs treatment technology seems very necessary, meets the needs of current enterprise and Development of Environmental Protection simultaneously.
First the biologic treating technique of waste gas is applied to the process of gas with foreign flavor in agricultural production process, foul smell, compost fermentation and biological sludge exhaust-gas treatment etc. that such as, in aquaculture, animals and plants processing produces.Along with the pollution of the VOC produced in industrial production is day by day serious, this technology is progressively applied to industrial waste gas purifying field.The general principle of its purification is: organic exhaust gas or gas with foreign flavor flow through the processor with liquid-absorbant; Within a processor, because the pollutant in waste gas exists concentration gradient between gas, liquid, concentration official post its transfer to liquid phase from gas phase, by the microorganism adsorption of surviving wherein; By the metabolism of microorganism, organic matter is decomposed, be converted into living beings and inorganic matter.
Most biologic treating technique for the treatment of industrial volatile organic contaminant is biofilter.As Huber adopts individual layer and multi-layer biological filter tank.Reactor volume > 3000m
3, the exhaust gas flow of process can up to 200,000Nm
3/ h, load is 100 ~ 200m
3/ (m
2h), in waste gas, pollutant levels are every cubic metre of hundreds of milligram.The people such as Corsi utilize biofilter to process volatile organic matter.
Zinc cation tower has been used successfully to some industries.The waste gas containing ethanol, acetone, ethanol ether, aromatic compound, resin etc. that enamel plant's baker discharges, the equal applicable biological scrubbing tower of the waste gas that calciner plant, foundry's (containing amine, phenol, formaldehyde, ammonia) and oil plant discharge is removed.
Biofilter and zinc cation tower are also for the treatment of storing the foul smell that distributes of feed and ammonia, and Holland and Germany establish 500 biological deodorization treating apparatus, and load is 250 ~ 380m
3/ (m
2h).Demmer uses bio-trickling filter process ammonia, and clearance can reach 90%.Biological deodorization technology has the commercial Application practice of five more than ten years abroad, and have accumulated abundant operating experience, the rate of coming into operation reaches 100%.
The process carrying out organic exhaust gas for simple biological filter process in prior art has been done to study and report, but single biological filter process is easily by the impact of organic exhaust gas concentration change, thus reduces the treatment effeciency of waste gas.
Summary of the invention
The invention provides a kind of processing method of organic exhaust gas, the method for the process organic exhaust gas combined with active carbon by biofilter.Technical problem to be solved is to provide that a kind of technique is simple, easy to operate, stable, operating cost is cheap, the treatment process of non-secondary pollution.
Below technical scheme of the present invention:
1) industrial organic exhaust gas enters before biochemical filter tank system through an oil mist separator, enter bacteria filter system through wind model system after removing the oil gas in organic exhaust gas and carry out biochemical treatment, biochemical filter tank bed temperature is 35 ~ 10 DEG C, and humidity is 100 ~ 70, and the time of staying is 30 ~ 80s;
2) through step 1) process after organic exhaust gas enter charcoal adsorption process through blower fan, through charcoal absorption purify after enter air.
Above-mentioned steps 1) described biochemical filter tank bed temperature is preferably 30 ~ 15 DEG C;
Above-mentioned steps 1) described biochemical filter tank humidity is preferably 99 ~ 85 DEG C;
Above-mentioned steps 1) the described biochemical filter tank time of staying is preferably 35 ~ 70s;
Above-mentioned steps 1) described biochemical filter tank system comprises a scrubbing tower and biochemical filter tank;
The wash time of above-mentioned scrubbing tower is 2 ~ 10s;
Above-mentioned steps 2) described active carbon is YZ-GH-129 modified active carbon.
Inventor finds after deliberation in organic exhaust gas biological treatment process of the test, because oil content is comparatively large and with a large amount of steam, especially in the season that temperature is low, oily vapour is more in waste gas.After this waste gas enters biofilter, biologic packing material is very easily subject to the pollution of oil, thus causes the decline of exhaust-gas treatment effect.Inventor finds by arranging oil mist separator before organic exhaust gas enters biofilter through lot of experiments research, and in result waste gas, oil gas obviously reduces, and biofilter treatment effect is significantly improved.
Inventor finds to have stronger absorption property due to the biologic packing material in biofilter simultaneously.Therefore, when organic contamination substrate concentration in waste gas exceedes finite concentration scope (as > 500mg/m3), biologic packing material can be reduced treatment effeciency because polluting.Namely when biology conversion (biological oxidation) speed that biologic packing material carries out self is less than biologic packing material adsorption speed, the accumulation of biologic packing material surface organic pollution can be caused, from the contoured surface of filler, form one deck oily matter, make organic pollution be difficult to enter filler inside, thus reduce biological treatment efficiency.Inventor increases charcoal absorption flow process by research on the basis of biochemical filter tank technique can process above-mentioned technical problem effectively, result shows that organic exhaust gas can qualified discharge through purified treatment, this technique has stronger impact resistance, and Organic Waste Gas Pollution thing treatment effeciency reaches more than 80%.
Compared with prior art, the invention has the advantages that:
1) by enter biochemical filter tank at organic exhaust gas before, carry out Oil-gas Separation, thus substantially increase the treatment effeciency in biochemical filter tank.
2) by increasing charcoal absorption flow process behind biochemical filter tank, improve the impact resistance of this treatment process, effectively improve the treatment effeciency of organic exhaust gas.
Detailed description of the invention
[embodiment 1 ~ 8]
In embodiments, each Con trolling index of waste water is taked to measure with under type:
Active carbon YZ-GH-129 adsorber technologies index sees the following form:
In each embodiment, in organic exhaust gas, pollutant load is in table 1, and each embodiment process conditions are in table 2, and result is in table 3
Table 1
Table 2
| Temperature/DEG C | Humidity | Wash time/s | The time of staying/s | |
| Embodiment 1 | 10 | 99 | 2 | 30 |
| Embodiment 2 | 20 | 86 | 3 | 35 |
| Embodiment 3 | 15 | 89 | 5 | 80 |
| Embodiment 4 | 27 | 95 | 7 | 65 |
| Embodiment 5 | 35 | 85 | 8 | 70 |
| Embodiment 6 | 30 | 92 | 10 | 73 |
| Embodiment 7 | 34 | 96 | 5 | 68 |
| Embodiment 8 | 32 | 100 | 6 | 45 |
Table 3
| Benzene (%) | Toluene (%) | Paraxylene (%) | Styrene (%) | Hydrogen sulfide (%) | |
| Embodiment 1 | 99.44 | 97.7 | 83.56 | 89.3 | 87.14 |
| Embodiment 2 | 85.31 | 81.8 | 47.72 | 85.92 | 80.38 |
| Embodiment 3 | 86.18 | 89.76 | 87.93 | 80.93 | 82.32 |
| Embodiment 4 | 80.01 | 80.48 | 88.52 | 60.26 | 80.93 |
| Embodiment 5 | 80.0 | 88.89 | 89.11 | 85.09 | 80.67 |
| Embodiment 6 | 88.51 | 83.64 | 84.58 | 87.37 | 85.64 |
| Embodiment 7 | 86.82 | 99.92 | 83.76 | 85.71 | 84.51 |
| Embodiment 8 | 85.23 | 80.96 | 80.15 | 84.91 | 95.46 |
Although preferred embodiment discloses as above by the present invention; so itself and be not used to limit content of the present invention; anyly be familiar with this those skilled in the art; not departing from main spirits of the present invention and context; when doing various change and retouching, the protection domain therefore invented should be as the criterion with the basic right claimed range applied for a patent.
Claims (8)
1. a processing method for organic exhaust gas, is characterized in that comprising following steps:
1) industrial organic exhaust gas enters before biochemical filter tank system through an oil mist separator, enter bacteria filter system through wind model system after removing the oil gas in organic exhaust gas and carry out biochemical treatment, biochemical filter tank bed temperature is 10 ~ 35 DEG C, and humidity is 100 ~ 70, and the time of staying is 30 ~ 80s;
2) through step 1) process after organic exhaust gas enter charcoal adsorption process through blower fan, through charcoal absorption purify after enter air.
2. the processing method of a kind of organic exhaust gas according to claim 1, is characterized in that step 1) described biochemical filter tank bed temperature is 15 ~ 35 DEG C.
3. the processing method of a kind of organic exhaust gas according to claim 1, is characterized in that step 1) the described biochemical filter tank time of staying is preferably 35 ~ 70s.
4. the processing method of a kind of organic exhaust gas according to claim 1, is characterized in that step 1) described biochemical filter tank humidity is 99 ~ 85.
5. the processing method of a kind of organic exhaust gas according to claim 1, is characterized in that step 1) described biochemical filter tank system comprises a scrubbing tower and biochemical filter tank.
6. the processing method of a kind of organic exhaust gas according to claim 1, is characterized in that step 2) described active carbon is YZ-GH-129 modified active carbon.
7. biochemical filter tank according to claim 1, is characterized in that described biochemical filter tank comprises two independent biochemical processors in parallel.
8. the processing method of a kind of organic exhaust gas according to claim 4, is characterized in that the wash time of organic exhaust gas is 2 ~ 10s.
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| CN201410427676.9A CN105363342A (en) | 2014-08-27 | 2014-08-27 | Organic waste gas treatment method |
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| CN201410427676.9A CN105363342A (en) | 2014-08-27 | 2014-08-27 | Organic waste gas treatment method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201625503U (en) * | 2010-02-23 | 2010-11-10 | 湖北博实城乡环境能源工程有限公司 | High-concentration stench biological treatment device |
| CN202289835U (en) * | 2011-10-28 | 2012-07-04 | 宇星科技发展(深圳)有限公司 | Organic waste gas purifying system |
| CN102614774A (en) * | 2012-04-06 | 2012-08-01 | 哈尔滨工业大学 | Biological treatment system of sludge odor and method for treating sludge odor by utilizing same |
| CN202844876U (en) * | 2012-08-23 | 2013-04-03 | 江苏碧程环保设备有限公司 | Novel high-efficiency biological deodorization purifier |
| CN203556243U (en) * | 2013-04-23 | 2014-04-23 | 刘会平 | Industrial organic waste gas processing device |
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2014
- 2014-08-27 CN CN201410427676.9A patent/CN105363342A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201625503U (en) * | 2010-02-23 | 2010-11-10 | 湖北博实城乡环境能源工程有限公司 | High-concentration stench biological treatment device |
| CN202289835U (en) * | 2011-10-28 | 2012-07-04 | 宇星科技发展(深圳)有限公司 | Organic waste gas purifying system |
| CN102614774A (en) * | 2012-04-06 | 2012-08-01 | 哈尔滨工业大学 | Biological treatment system of sludge odor and method for treating sludge odor by utilizing same |
| CN202844876U (en) * | 2012-08-23 | 2013-04-03 | 江苏碧程环保设备有限公司 | Novel high-efficiency biological deodorization purifier |
| CN203556243U (en) * | 2013-04-23 | 2014-04-23 | 刘会平 | Industrial organic waste gas processing device |
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Application publication date: 20160302 |