CN102091530A - Bio-filtration deodorization method - Google Patents
Bio-filtration deodorization method Download PDFInfo
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- CN102091530A CN102091530A CN2010106243850A CN201010624385A CN102091530A CN 102091530 A CN102091530 A CN 102091530A CN 2010106243850 A CN2010106243850 A CN 2010106243850A CN 201010624385 A CN201010624385 A CN 201010624385A CN 102091530 A CN102091530 A CN 102091530A
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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 a bio-filtration deodorization method using a bio-filter which comprises a filter body, an exhaust port, a shower pipe and an air inlet, wherein a packing layer is arranged in the filter body. The method comprises the following steps: (1) collecting odors: collecting odor waste gas and air respectively by using a gas collecting system; (2) mixing: mixing the odor waste gas with air in a pre-mixing chamber, so as to acquire gas mixture; (3) bio-filtration deodorization: introducing the gas mixture acquired in step (2) into the bio-filter for filtration and deodorization; and (4) discharging: discharging the gas processed in step (3) at high altitude. The process is simple and can be used for efficiently degrading organic matters such as volatile organic compounds (VOC), hydrogen sulfide, ammonia, sulfur alcohol, and the like. The degradation is stable, is high in speed and is high in efficiency. The processing process does not lead to secondary pollution.
Description
Technical field
The present invention relates to the Environmental Technology field, relate to a kind of method of utilizing biological filter deodorizing especially.
Background technology
Sewage treatment plant, pumping plant, public lavatory, refuse depot, refuse landfill, agricultural production etc. all are the main source places of foul smell.House refuse, industrial refuse, sewage etc. produce the bad odor body under microbial action, these foul smell often comprise: volatile organic matter (VOC), inorganic matter, hydrogen sulfide, ammonia, thio-alcohol etc.They are felt to have aggressiveness and lethal easily by the mankind's olfactory organ, be one of killer of human health.Along with human living standard's the raising and the enhancing of Public Environmental Awareness, the deodorizing problem is just causing increasing concern.For preventing and avoid the influence of stink to the surrounding resident life, some developed countries have successively formulated some concrete regulations, must not build living facilities in the outer 300m scope of for example German regulation municipal wastewater treatment plant boundary, do not reach this requirement, the enterprise that foul smell produces the source will take the necessary measure that prevents the stink diffusion.At present, various designs begin to present, and cost is low, the land occupation resource is few, expected effects such as odor removal efficient height but a lot of method does not reach.
Summary of the invention
The present invention improves a kind of method of biological filter deodorizing, and its technology is simple, and the land occupation area is little, odor removal efficient height, non-secondary pollution.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
A kind of method of biological filter deodorizing is used a biological filtration tank, and described biofiltration tower comprises a tower body; One exhaust outlet and a shower are set on the tower body top; One packing layer is set in the described tower body; Described tower body bottom is provided with an air inlet, comprises following processing step:
(1) collects foul waste gas: collect foul waste gas and air by gas gathering system respectively;
(2) mix: foul gas and air are mixed at premixing cavity, get mist;
(3) biological filter deodorizing: the gaseous mixture of step (2) is introduced biological filtering tower combined working carry out filtration deodorization;
(4) discharging: the gas high altitude discharge after will handling through step (3).
Described step (2) also is included in and feeds steam in the mixing chamber.
The described mist relative humidity of control step (2) is not less than 98%.
Described step (3) also comprises: mist is introduced from the filtration tank bottom air inlet, and foul smell is discharged from the exhaust outlet of top of tower after being absorbed degraded through packing layer by microorganism.
Described packing layer comprises the filling polymeric adsorbent, and described polymeric adsorbent is wrapped in the biodegradation microorganism.
Add the biological solution nutritional agents in packing layer, and add an amount of biological nutrition at deodorisation process and add agent, carbon-nitrogen ratio is not less than 0.01 in the control biofiltration tower;
Described biological nutritive agent contains nitrogen, phosphorus, potassium and trace element;
The biological filter deodorizing process temperature is controlled to be-20 ℃-40 ℃, further is controlled to be 25 ℃-35 ℃.
Gas detecting instrument is installed in gas outlet at described biofiltration tower;
Described shower is the spray odor controlling, spray odor controlling when emission gases contains peculiar smell.
Core of the present invention is the biological filter deodorizing process, in biofiltration tower, be filled with and be beneficial to biology and echo the growth filler and the effectively compound microbial bacterial classification that adhere to, and the control microorganism grows in the adapt circumstance condition, they form biomembrane at the polymeric adsorbent filling surface, microorganism in the biomembrane utilizes inorganic and organic matter in the waste gas as the carbon source and the energy, keep its vital movement by the degraded odorant, and the odor pollution material is converted to colourless, tasteless gases such as carbon dioxide, water and mineral matter, thereby reach the purpose of purification.
The biological deodorizing process mainly is divided into following several stages:
(1) gas-liquid diffusion phase: the chemical substance in the foul smell such as organic volatile matter, sulfur dioxide, ammonia etc., at first transfer to liquid phase by gas phase by filler gas/liquid interface;
(2) liquid-solid diffusion phase: the peculiar smell chemicals in the waste gas are diffused into the biomembrane of biologic packing material by liquid phase;
(3) the biological oxidation stage: the microorganism in the biomembrane that biologic packing material surface forms is the gas with foreign flavor molecular oxidation, and biomembrane can cause the diffusion and the absorption of nutriment such as nitrogen or phosphorus and oxygen simultaneously.
Biofiltration is converted into carbon dioxide, water, inorganic salts, mineral matter etc. to the polluter in the waste gas by above-mentioned three phases, thereby reaches the purpose that peculiar smell purifies.
The beneficial effect of the invention
The deodorizing microorganism that utilization of the present invention is grown on the filtrate is degraded to organic matters such as volatile organic matter (VOC), hydrogen sulfide, ammonia, mercaptan, and microorganism decomposes that the speed of odorant is fast, efficient is high, stable.
Deodorizing method suitable device floor space of the present invention is little, saves land resource, and purification efficiency is up to more than the 90-99%, long operational time, and processing procedure does not produce secondary pollution.
The method of biological filter deodorizing of the present invention is applicable to that mainly pharmaceutical factory, refuse landfill, sewage treatment plant, Leather Factory, chemical plant, fermentation pharmacy factory, paper mill etc. produce stench and produce institute.
Below in conjunction with embodiment and accompanying drawing, the present invention is further described.
Fig. 1 is the schematic diagram of biofiltration tower;
Fig. 2 is the process chart of biological filter deodorizing.
The specific embodiment
Embodiment
Present embodiment is handled municipal administration life foul smell, and the processing air quantity is 5000m
3/ h.
A kind of method of biological filter deodorizing referring to Fig. 1, is used biofiltration tower, and described biofiltration tower comprises a tower body 5; One exhaust outlet 2 and a shower 1 are set on the tower body top; One packing layer 3 is set in the described tower body; Described tower body bottom is provided with an air inlet 4, may further comprise the steps (referring to Fig. 2):
(1) collects foul waste gas: collect foul waste gas and air by gas gathering system respectively;
(2) mix: foul gas and air are mixed at premixing cavity, get mist, and feed steam, the relative humidity of control mist is not less than 98%;
(3) biological filter deodorizing: the mist of step (2) is introduced in the biological filtering tower combined working 5 from the air inlet 4 of biofiltration tower, and gas is absorbed degraded through packing layer 3 by microorganism;
(4) discharging: the gas high altitude discharge after will handling through step (3).
Present embodiment is filled polymeric adsorbent at packing layer, and described polymeric adsorbent is wrapped in the biodegradation microorganism.
Can add the biological solution nutritional agents in the filtration deodorization process in tower, carbon-nitrogen ratio is not less than 0.01 in the control biofiltration tower; Temperature is controlled to be 25 ℃-35 ℃.
Gas detecting instrument is installed in gas outlet at biofiltration tower; If detect the gas outlet gaseous ammonia, nitrogen content is too high, perhaps system's operation is broken down, by shower place spray odor controlling.
The present invention is not limited to above-mentioned embodiment, and every all embodiments that are equal to that can realize the object of the invention are all within protection scope of the present invention.
Claims (10)
1. the method for a biological filter deodorizing is characterized in that, uses a biological filtration tank, and described biofiltration tower comprises a tower body; One exhaust outlet and a shower are set on the tower body top; One packing layer is set in the described tower body; Described tower body bottom is provided with an air inlet, comprises following processing step:
(1) collects foul waste gas: collect foul waste gas and air by gas gathering system respectively;
(2) mix: foul gas and air are mixed at premixing cavity, get mist;
(3) biological filter deodorizing: the gaseous mixture of step (2) is introduced biological filtering tower combined working carry out filtration deodorization;
(4) discharging: the gas high altitude discharge after will handling through step (3).
2. the method for biological filter deodorizing according to claim 1 is characterized in that, described step (2) also is included in and feeds steam in the mixing chamber.
3. the method for biological filter deodorizing according to claim 1 is characterized in that, the described mist relative humidity of control step (2) is not less than 98%.
4. biological filter deodorizing method according to claim 1 is characterized in that, described step (3) also comprises: mist is introduced from the filtration tank bottom air inlet, and foul smell is discharged from the exhaust outlet of top of tower after being absorbed degraded through packing layer by microorganism.
5. biological filter deodorizing method according to claim 1 is characterized in that described packing layer comprises the filling polymeric adsorbent, and described polymeric adsorbent is wrapped in the biodegradation microorganism.
6. the method for biological filter deodorizing according to claim 1 is characterized in that, adds the biological solution nutritional agents in packing layer.
7. the method for biological filter deodorizing according to claim 6 is characterized in that, described biological nutritive agent contains nitrogen, phosphorus, potassium and trace element.
8. the method for biological filter deodorizing according to claim 1 is characterized in that, temperature is controlled to be-20 ℃-40 ℃, further is controlled to be 25 ℃-35 ℃.
9. the method for biological filter deodorizing according to claim 1 is characterized in that, in the gas outlet of described biofiltration tower gas detecting instrument is installed.
10. the method for biological filter deodorizing according to claim 1 is characterized in that, described shower is the spray odor controlling, spray odor controlling when emission gases contains peculiar smell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106243850A CN102091530A (en) | 2010-12-31 | 2010-12-31 | Bio-filtration deodorization method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010106243850A CN102091530A (en) | 2010-12-31 | 2010-12-31 | Bio-filtration deodorization method |
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| CN102091530A true CN102091530A (en) | 2011-06-15 |
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| CN2010106243850A Pending CN102091530A (en) | 2010-12-31 | 2010-12-31 | Bio-filtration deodorization method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102247749A (en) * | 2011-07-27 | 2011-11-23 | 湖南骏泰浆纸有限责任公司 | Treatment method and system of odor generated on sulfate pulping production line |
| CN107008085A (en) * | 2017-06-01 | 2017-08-04 | 安徽吉乃尔电器科技有限公司 | A kind of incinerator for treating domestic refuse waste gas purification apparatus |
| CN107398167A (en) * | 2017-06-28 | 2017-11-28 | 无锡威奥液压机电设备有限公司 | A kind of waste water station waste gas, which focuses on, uses biofiltration device |
| CN108744948A (en) * | 2018-06-15 | 2018-11-06 | 苏州市玄天环保科技有限公司 | A kind of exhaust gas filtration processing equipment |
-
2010
- 2010-12-31 CN CN2010106243850A patent/CN102091530A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102247749A (en) * | 2011-07-27 | 2011-11-23 | 湖南骏泰浆纸有限责任公司 | Treatment method and system of odor generated on sulfate pulping production line |
| CN107008085A (en) * | 2017-06-01 | 2017-08-04 | 安徽吉乃尔电器科技有限公司 | A kind of incinerator for treating domestic refuse waste gas purification apparatus |
| CN107398167A (en) * | 2017-06-28 | 2017-11-28 | 无锡威奥液压机电设备有限公司 | A kind of waste water station waste gas, which focuses on, uses biofiltration device |
| CN108744948A (en) * | 2018-06-15 | 2018-11-06 | 苏州市玄天环保科技有限公司 | A kind of exhaust gas filtration processing equipment |
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Application publication date: 20110615 |