CN103599684A - Photocatalysis oxidization and biological degradation deodorizing device and deodorizing process - Google Patents
Photocatalysis oxidization and biological degradation deodorizing device and deodorizing process Download PDFInfo
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- CN103599684A CN103599684A CN201310573884.5A CN201310573884A CN103599684A CN 103599684 A CN103599684 A CN 103599684A CN 201310573884 A CN201310573884 A CN 201310573884A CN 103599684 A CN103599684 A CN 103599684A
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Abstract
The invention discloses a photocatalysis oxidization and biological degradation deodorizing device and a deodorizing process. The photocatalysis oxidization and biological degradation deodorizing device comprises a photocatalysis deodorizing mechanism and a biological drop filter tower, the photocatalysis oxidization is combined with the biological degradation, a load is alleviated, the growth of a microorganism can be favored, the biological reaction is accelerated by heating gas, the overall remaining time is shortened, and the deodorizing efficiency is improved. The photocatalysis oxidization and the biological degradation are optimized and coupled, so that the overall remaining time is shortened, the deodorizing efficiency is improved, and the overall deodorizing efficiency can reach 99 percent.
Description
Technical field
The present invention relates to deodorization technology field, be specifically related to a kind of photochemical catalytic oxidation and biodegradation odor removal and deodorization process thereof.
Background technology
Stench is a kind of form of atmosphere pollution, directly acts on people's sense of smell, and contaminated air can cause One's spirits are drooping depressed, the inefficiency of people, and even the incidence of disease of the malignant tumour such as lung cancer is also relevant with room air pollution.Oneself becomes a kind of in the typical public hazards in seven kinds of the world todays (atmosphere pollution, water pollution, soil pollution, noise pollution, vibration, land subsidence, stench) stench.Within 1993, China has formulated < < emission standard for odor pollutants > > (GB14554-93), standard is pointed out: odorant pollutant refers to that all stimulate olfactory organ to cause the gaseous matter that people are unhappy and damage living environment, and specifically lists the discharge standard of 9 kinds of odorant pollutants (hydrogen sulfide, methyl mercaptan, first sulphur vinegar, methyl disulfide vinegar, carbon disulfide, ammonia, front three glue, styrene, odor concentration).
On the method for odor treatment is main at present, be to adopt physics, chemistry and biological means, or the combination of this several method.Wherein physical method mainly comprises masking method, absorption process, absorption method, has the advantages such as simple to operate, instant effect.But this method is suitable treatment low concentration, odorant among a small circle only, and cost high, there is secondary pollution; Chemical method mainly comprises chemical washing method, oxidizing process, burning method, has the advantages such as efficiency is high, applied widely, but the method exists the defects such as deodorizing facility investment is high, operating cost is expensive, the duration is short.Biological method is to grow up on the basis of soil deodorization method the 1950's, and it utilizes the metabolic degradation effect of microorganism, and odorant decomposition and inversion is become to carbon dioxide CO
2, water H
2o, nitrogen N H
3, sulfate etc. is harmless or few harmful substances.Conventional biological deodorization technique has biofiltration process, biological washing method, bio-trickling method and aeration type bioanalysis.Biological method has the advantages such as processing speed is fast, wide adaptability, non-secondary pollution, but the method exists screening and cultivates that bacterial classification is difficult, the defect such as slow takes effect.
Photocatalyst catalysis battle array solution technology is at the raw electron hole pair of photochemical catalyst local products, with the H of adsorption by UV-irradiation
2o and O
2reaction generate oxidisability very strong enter base free radical (OH) and superoxide ion free radical (O
2), can be various organic-inorganic foul gas as the class of waking up, benzene class, Ammonia, nitrogen oxide, sulfide and other VOC(Volatile Organic Compounds, volatile organic matter) type organic and inorganic matter be reduced into CO under the effect of photochemical catalytic oxidation
2, H
2o and other nontoxic material.Due in photocatalysis oxidation reaction process without any additive, so can produce secondary pollution, photocatalytic degradation is subject to people's attention gradually.The application of photocatalysis technology aspect odor purification, is mainly the constraint that is subject to activity and efficiency and the photocatalytic coating technology of photochemical catalyst, is difficult to industrialization.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of photochemical catalytic oxidation and biodegradation odor removal, by photochemical catalytic oxidation and biodegradation combination, cut down load and be conducive to growth of microorganism, heated air is accelerated biological respinse, shorten total residence time, improved odor removal efficient.
Another object of the present invention is to provide a kind of photochemical catalytic oxidation and biodegradation deodorization process, by photochemical catalytic oxidation and biodegradable coupling, to cut down load and be conducive to growth of microorganism, heated air is accelerated biological respinse, shorten total residence time, improved odor removal efficient.
For addressing the above problem, the technical solution adopted in the present invention is as follows:
Photochemical catalytic oxidation and a biodegradation odor removal, comprise photocatalysis deodorizing mechanism and bio-trickling filter,
Described photocatalysis deodorizing mechanism comprises reaction chamber, and described reaction chamber bottom is provided with waste gas inlet port, and its top is provided with gas outlet; In reaction chamber, be fixed with respectively from the bottom to top adsorption layer and photocatalysis assembly, adsorption layer and reaction chamber bottom and sidewall form inlet chamber, and top and the sidewall of photocatalysis assembly and reaction chamber form air cavity; Described photocatalysis assembly comprise at least two groups by lower from upper staggered uviol lamp and catalytic module;
Described bio-trickling filter is comprised of left chamber, right chamber and torus, and the bottom of left chamber and right chamber is communicated with torus respectively; At the Lower Half difference filled biomass filler of left chamber and right chamber, top is respectively equipped with spray head; The sidewall of left chamber is provided with the air inlet being communicated with gas outlet, and the top of right chamber is provided with floss hole.
Described in such scheme, in catalytic module, load has titanium deoxide catalyst.Described adsorption layer is active carbon layer.Described biologic packing material is the filler that load has microorganism.
Preferably, photochemical catalytic oxidation of the present invention and biodegradation odor removal, also comprise online humidity measurement instrument, and online humidity tester test side is connected in reaction chamber.
Preferably, photochemical catalytic oxidation of the present invention and biodegradation odor removal, also comprise a blower fan, and blower fan one end connects collects airduct, and the other end connects waste gas inlet port by pipeline.
On the basis of such scheme, as of the present invention preferred embodiment a kind of, on described pipeline, be provided with online H2S detector and online ammonia detector.
Photochemical catalytic oxidation and a biodegradation deodorization process, adopt photochemical catalytic oxidation of the present invention and biodegradation odor removal and comprise the following steps:
1) Treatment by Photocatalysis Oxidation: waste gas enters into reaction chamber by collecting airduct through blower fan, and uviol lamp general power is 3～5kW/ (1000m
3/ h); The time that waste gas stops in reaction chamber is 2-3s, in course of reaction, controls reaction humidity and is greater than 30%;
2) biodegradation: the waste gas after photocatalysis treatment enters into bio-trickling filter, more than void tower filtering velocity is controlled 0.15m/s, the time that waste gas stops at bio-trickling filter is controlled lower than 10s, and waste gas is discharged by floss hole in bio-trickling filter after double-filtration.
In such scheme, preferred embodiment, the area of described bio-trickling filter load is greater than 500m
3/ m
2h.
Compared to existing technology, beneficial effect of the present invention is:
1. photochemical catalytic oxidation of the present invention and biodegradation odor removal, process after rear waste gas, hydrogen sulfide and the ammonia of the gas of discharging are far superior to < < emission standard for odor pollutants > >, and can keep in stable scope; Whole plant area is little, invests lowly, and the foul smell that can be used for the places such as sewage pumping station, garbage transfer station, sewage treatment plant, sludge treatment Chang, feed-processing plant is processed;
2. photochemical catalytic oxidation of the present invention and biodegradation deodorization process, by entering photochemical catalytic oxidation and biodegradation optimal coupling, shortened total residence time, improved odor removal efficient, and total odor removal efficient reaches 99%.
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is preferred structural representation of the present invention.
The specific embodiment
As shown in Figure 1, photochemical catalytic oxidation of the present invention and biodegradation odor removal, comprise photocatalysis deodorizing mechanism 1 and bio-trickling filter 2;
Described photocatalysis deodorizing mechanism comprises reaction chamber, and described reaction chamber bottom is provided with waste gas inlet port, and its top is provided with gas outlet; In reaction chamber, be fixed with respectively from the bottom to top adsorption layer 13 and photocatalysis assembly, adsorption layer 13 forms inlet chamber with reaction chamber bottom and sidewall, and top and the sidewall of photocatalysis assembly and reaction chamber form air cavity; Described photocatalysis assembly comprise at least two groups by lower from upper staggered uviol lamp 11 and catalytic module 12;
Described bio-trickling filter 2 is comprised of left chamber, right chamber and torus, and the bottom of left chamber and right chamber is communicated with torus respectively; At the Lower Half difference filled biomass filler 21 of left chamber and right chamber, top is respectively equipped with spray head 22; The sidewall of left chamber is provided with the air inlet being communicated with gas outlet, and the top of right chamber is provided with floss hole 23.
On the basis of such scheme, in described catalytic module, load has titanium deoxide catalyst.
On the basis of such scheme, in a preferred embodiment, photochemical catalytic oxidation of the present invention and biodegradation odor removal, also comprise online humidity measurement instrument 4, and online humidity tester detects 4 ends and is connected in reaction chamber.When the humidity of online humidity measurement instrument demonstration is less than 30%, need to starts humidifier and increase the humidity in reaction chamber.
On the basis of such scheme, in another preferred embodiment, photochemical catalytic oxidation of the present invention and biodegradation odor removal, also comprise a blower fan 3, and blower fan one end connects collects airduct 7, and the other end connects waste gas inlet port by pipeline.
As of the present invention preferred embodiment a kind of, on described pipeline, be provided with online H2S detector 5 and online ammonia detector 6.
Operation principle of the present invention is: foul smell is after collecting airduct 7 collections, by blower fan 3 pressurizations, enter into light-catalyzed reaction mechanism, online H2S detector 5 and online ammonia detector 6 can on-line monitoring odor concentration situations of change, in reaction chamber, there is photocatalytic degradation in foul smell, the OH free radical that has the catalytic module 12 of titanium deoxide catalyst to produce by uviol lamp 11 and load is little molecule or odorless material by foul smell macromolecules degradation, uviol lamp 11 also has heat effect, foul smell can greatly improve biodegradable efficiency after preliminary treatment like this, the humidity of online humidity measurement instrument in can on-line monitoring reaction chamber changes, when humidity is enabled humidifier lower than 30% time, guarantee the treatment effect in reaction chamber, microorganism by biologic packing material load in bio-trickling filter 2 can complete foul smell and degrade in shorter time, in processing procedure, by spray head 22, supplements the required moisture of microorganism, processes foul smell up to standard through floss hole 23 discharges.
It is below the specific embodiment of technique of the present invention.
Photochemical catalytic oxidation and a biodegradation deodorization process, adopt photochemical catalytic oxidation of the present invention and biodegradation odor removal and comprise the following steps:
1) Treatment by Photocatalysis Oxidation: waste gas enters into reaction chamber by collecting airduct through blower fan, and uviol lamp general power is 3kW/ (1000m
3/ h); The time that waste gas stops in reaction chamber is 2s, controls reaction humidity 50% in course of reaction;
2) biodegradation: the waste gas after photocatalysis treatment enters into bio-trickling filter, void tower filtering velocity is controlled 0.15m/s, and the time that waste gas stops at bio-trickling filter is controlled as 6s, and waste gas is discharged by floss hole in bio-trickling filter after double-filtration.
Embodiment 2
Photochemical catalytic oxidation and a biodegradation deodorization process, adopt photochemical catalytic oxidation of the present invention and biodegradation odor removal and comprise the following steps:
1) Treatment by Photocatalysis Oxidation: waste gas enters into reaction chamber by collecting airduct through blower fan, and uviol lamp general power is 5kW/ (1000m
3/ h); The time that waste gas stops in reaction chamber is 3s, and in course of reaction, controlling reaction humidity is 35%;
2) biodegradation: the waste gas after photocatalysis treatment enters into bio-trickling filter, void tower filtering velocity is controlled 0.2m/s, and the time that waste gas stops at bio-trickling filter is controlled as 8s, and waste gas is discharged by floss hole in bio-trickling filter after double-filtration.
Effect detection
Table 1: the content of hydrogen sulfide and ammonia in Exhaust Gas
| | Embodiment | 1 | Embodiment 2 |
| H 2S content (mg/m 3） | 0.025 | 0.020 | |
| NH 3Content (mg/m 3） | 0.15 | 0.13 |
Above-mentioned embodiment is only the preferred embodiment of the present invention; can not limit the scope of protection of the invention with this, the variation of any unsubstantiality that those skilled in the art does on basis of the present invention and replacement all belong to the present invention's scope required for protection.
Claims (9)
1. photochemical catalytic oxidation and a biodegradation odor removal, comprise photocatalysis deodorizing mechanism and bio-trickling filter, it is characterized in that:
Described photocatalysis deodorizing mechanism comprises reaction chamber, and described reaction chamber bottom is provided with waste gas inlet port, and its top is provided with gas outlet; In reaction chamber, be fixed with respectively from the bottom to top adsorption layer and photocatalysis assembly, adsorption layer and reaction chamber bottom and sidewall form inlet chamber, and top and the sidewall of photocatalysis assembly and reaction chamber form air cavity; Described photocatalysis assembly comprise at least two groups by lower from upper staggered uviol lamp and catalytic module;
Described bio-trickling filter is comprised of left chamber, right chamber and torus, and the bottom of left chamber and right chamber is communicated with torus respectively; At the Lower Half difference filled biomass filler of left chamber and right chamber, top is respectively equipped with spray head; The sidewall of left chamber is provided with the air inlet being communicated with gas outlet, and the top of right chamber is provided with floss hole.
2. photochemical catalytic oxidation according to claim 1 and biodegradation odor removal, is characterized in that: in described catalytic module, load has titanium deoxide catalyst.
3. photochemical catalytic oxidation according to claim 1 and biodegradation odor removal, is characterized in that: it also comprises online humidity measurement instrument, and online humidity tester test side is connected in reaction chamber.
4. photochemical catalytic oxidation according to claim 1 and biodegradation odor removal, is characterized in that: it also comprises a blower fan, and blower fan one end connects collects airduct, and the other end connects waste gas inlet port by pipeline.
5. photochemical catalytic oxidation according to claim 4 and biodegradation odor removal, is characterized in that: on described pipeline, be provided with online H2S detector and online ammonia detector.
6. photochemical catalytic oxidation according to claim 1 and biodegradation odor removal, is characterized in that: described adsorption layer is active carbon layer.
7. photochemical catalytic oxidation according to claim 1 and biodegradation odor removal, is characterized in that: described biologic packing material is the filler that load has microorganism.
8. photochemical catalytic oxidation and a biodegradation deodorization process, is characterized in that, it adopts photochemical catalytic oxidation claimed in claim 1 and biodegradation odor removal and comprises the following steps:
1) Treatment by Photocatalysis Oxidation: waste gas enters into reaction chamber by collecting airduct through blower fan, and uviol lamp general power is 3 ~ 5kW/ (1000m
3/ h); The time that waste gas stops in reaction chamber is 2-3s, controls reaction humidity be greater than 30% in course of reaction;
2) biodegradation: the waste gas after photocatalysis treatment enters into bio-trickling filter, more than void tower filtering velocity is controlled 0.15m/s, the time that waste gas stops at bio-trickling filter is controlled lower than 10s, and waste gas is discharged by floss hole in bio-trickling filter after double-filtration.
9. photochemical catalytic oxidation according to claim 8 and biodegradation deodorization process, is characterized in that: the area load of described bio-trickling filter is greater than 500m
3/ m
2h.
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| CN105807008A (en) * | 2016-05-06 | 2016-07-27 | 北京市农林科学院 | Slot type or strip stack type fermentation odor detection device for organic fertilizer |
| CN106322547A (en) * | 2016-08-16 | 2017-01-11 | 中节能工业节能有限公司 | Air exchange system for adjusting and controlling PM2.5 |
| CN106512692A (en) * | 2016-12-21 | 2017-03-22 | 北京城市排水集团有限责任公司 | Photo-oxidative combined double-fluid double-spray washing deodorization reactor and application method thereof |
| CN107915373A (en) * | 2017-11-22 | 2018-04-17 | 郑州艾莫弗信息技术有限公司 | Industrial waste water disposal device with waste gas purification function |
| CN108619897A (en) * | 2017-03-20 | 2018-10-09 | 光大水务（深圳）有限公司 | Biological deodorizing device |
| CN108905565A (en) * | 2018-07-24 | 2018-11-30 | 王鹏 | A kind of purification method of VOCs gas |
| CN108905612A (en) * | 2018-08-02 | 2018-11-30 | 成都四维福腾环保设备有限公司 | A kind of purification device and purification method of spray and photocatalytic degradation combination |
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| CN108939810A (en) * | 2018-07-23 | 2018-12-07 | 安徽华星化工有限公司 | A kind of purification method containing benzene homologues exhaust gas |
| CN109012157A (en) * | 2018-08-20 | 2018-12-18 | 三门技师学院 | A kind of rubber processing flue gas purification device |
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| CN105807008A (en) * | 2016-05-06 | 2016-07-27 | 北京市农林科学院 | Slot type or strip stack type fermentation odor detection device for organic fertilizer |
| CN106322547A (en) * | 2016-08-16 | 2017-01-11 | 中节能工业节能有限公司 | Air exchange system for adjusting and controlling PM2.5 |
| CN106512692A (en) * | 2016-12-21 | 2017-03-22 | 北京城市排水集团有限责任公司 | Photo-oxidative combined double-fluid double-spray washing deodorization reactor and application method thereof |
| CN108619897A (en) * | 2017-03-20 | 2018-10-09 | 光大水务（深圳）有限公司 | Biological deodorizing device |
| CN107915373A (en) * | 2017-11-22 | 2018-04-17 | 郑州艾莫弗信息技术有限公司 | Industrial waste water disposal device with waste gas purification function |
| CN108939810A (en) * | 2018-07-23 | 2018-12-07 | 安徽华星化工有限公司 | A kind of purification method containing benzene homologues exhaust gas |
| CN108905564A (en) * | 2018-07-24 | 2018-11-30 | 王鹏 | A kind of photocatalysis and biological bed combined type VOCs cleaning equipment |
| CN108905565A (en) * | 2018-07-24 | 2018-11-30 | 王鹏 | A kind of purification method of VOCs gas |
| CN108905612A (en) * | 2018-08-02 | 2018-11-30 | 成都四维福腾环保设备有限公司 | A kind of purification device and purification method of spray and photocatalytic degradation combination |
| CN109012157A (en) * | 2018-08-20 | 2018-12-18 | 三门技师学院 | A kind of rubber processing flue gas purification device |
| CN109621599A (en) * | 2018-12-29 | 2019-04-16 | 佛山市云米电器科技有限公司 | A kind of kitchen ventilator and oil smoke catalytic degradation method with oil smoke catalytic degradation function |
| CN109621599B (en) * | 2018-12-29 | 2023-09-22 | 佛山市云米电器科技有限公司 | Range hood with lampblack catalytic degradation function and lampblack catalytic degradation method |
| CN110898638A (en) * | 2019-12-06 | 2020-03-24 | 刘文军 | Composite degradation method for VOCs |
| CN112870947A (en) * | 2021-02-03 | 2021-06-01 | 中国环境科学研究院 | Composite device for removing compost volatile sulfides |
| CN112870947B (en) * | 2021-02-03 | 2022-04-12 | 中国环境科学研究院 | Composite device for removing compost volatile sulfides |
| CN116585886A (en) * | 2023-05-05 | 2023-08-15 | 江苏科易达环保科技股份有限公司 | Photocatalytic oxidation and bio-enhancement cooperative treatment system applying photovoltaic energy supply |
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Application publication date: 20140226 |