CN105582792B - A kind of synchronous apparatus and method for for removing odorant and microbial aerosol - Google Patents
A kind of synchronous apparatus and method for for removing odorant and microbial aerosol Download PDFInfo
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- CN105582792B CN105582792B CN201410460781.2A CN201410460781A CN105582792B CN 105582792 B CN105582792 B CN 105582792B CN 201410460781 A CN201410460781 A CN 201410460781A CN 105582792 B CN105582792 B CN 105582792B
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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 belongs to technical field of waste gas treatment, is related to a kind of synchronous apparatus and method for for removing odorant and microbial aerosol.Present device is made up of wet scrubbing area, biofiltration area, dry section and ultraviolet photocatalyst reaction zone.Waste gas containing stench and microbial aerosol first passes around wet scrubbing area, gas is humidified, the good odorant of part aqueous is removed simultaneously, subsequently into biofiltration area, biofiltration area is connected with dry section, dry section is connected with ultraviolet photocatalyst reaction zone, the TiO in photocatalyst filtering net layer2Under the irradiation of uviol lamp, produce the extremely strong hydroxy of oxidability (OH) and active oxygen (O), reacted with odorant, while remove the microbial aerosol not being removed in biofiltration area, odorless, the aseptic gas after purification are discharged from exhaust outlet.Present device can synchronously remove odorant and microbial aerosol pollution, and removal efficiency is high, effect stability, non-secondary pollution.
Description
Technical field
The invention belongs to exhaust-gas treatment field, more particularly to a kind of synchronous removal odorant and microbial aerosol are set
Standby and method.
Background technology
In recent years, with the quickening of urbanization process, increasing municipal sewage plant, domestic garbage treatment plant and
The urban operating mechanisms such as house refuse terminal are gone into operation operation in succession, and more and more important work is played in terms of urban environment is improved
With.But during municipal sewage or domestic rubbish disposal, sulfur-bearing, nitrogen material and a large amount of micro- lifes in sewage or house refuse
Thing is likely to spill into air in gaseous form under agitation or aeration effect, so as to cause to contain odorant and micro- life simultaneously
The pollution of thing aerosol waste gas.With the increasingly enhancing of the development of social economy, growth in the living standard and Public Environmental Awareness,
Odorant and the microorganism caused by urban operating mechanism such as municipal sewage plant, domestic garbage treatment plant, house refuse terminal
Aerosol Pollution turns into matter of utmost importance urgently to be resolved hurrily.
Biologic treating technique is that a kind of exhaust-gas treatment, particularly foul gas of being used for that recent decades grow up is handled
New technology.With the materializing strategy technology of routine, such as absorption and sorption, catalysis, burn and compare, biologic treating technique has processing
Effect is good, non-secondary pollution, investment and operating cost are low, the advantages that being easily managed, especially processing big flow, low concentration it is useless
Its superiority can be more shown during gas.The principle of biologic treating technique is the metabolic process using microorganism by the pollutant in waste gas
Harmless or low harmful class material is degraded or be converted into matter.It is more economical for the low waste gas of large-minded, concentration, biologic treating technique.
Research data shows that the investment of biotechnology and operating cost are only the 1/4~1/20 of materializing strategy technology.Biological treatment skill
Art, particularly bio-filter technology, have been widely used in municipal sewage plant, domestic garbage treatment plant and house refuse
Turn the processing of odorant and microbial aerosol caused by urban operating mechanism such as station.
However, bio-filter technology processing waste gas exist retention microbial aerosol and loss microbial aerosol it is dual
Effect, because Biofiltration apparatus is a kind of system of microbial immobilized growth, wherein the high density and Gao Bi filled
The filler of surface area may retain the microorganism in air inlet.And apposition growth has considerable microorganism on filler, in air-flow
Under effect, these microorganisms are possible to escape filter tank in the form of an aerosol and cause atmosphere pollution again.
Ultraviolet catalytic oxidation technology is a kind of by ultraviolet radiation (UV) and catalyst (such as TiO2Deng) combine to useless
The method of gas disposal.Absorbent of the ultraviolet catalytic oxidation technology using catalyst as ultraviolet light, electron hole pair is produced, is lured
Hair produces oxidation activity group, i.e., under the exciting of ultraviolet light, catalyst light, which decomposes, produces the stronger free radical of oxidability
(such as OH) and active oxygen (O), can aoxidize many microorganisms and difficult degradation exhaust emission that alone oxidant can not decompose
Thing.Ultraviolet catalytic oxidation technology can be aoxidized at normal temperatures and pressures, not produce secondary pollution, can prevent majority from or it is difficult
With the organic pollution permineralization of degraded, and with the ability of very strong killing microorganism.
The odorant caused by urban operating mechanism such as municipal sewage plant, domestic garbage treatment plant and house refuse terminal
Wide with microbial aerosol pollution effect scope, intractability is big.Although various treatment technologies are varied, most of technology
It is not yet ripe and perfect, treatment effect low, floor space big the problems such as small there is accommodation, or investment and operating cost
Height, complex operation is managed, be easy to produce secondary pollution problems.Therefore, especially lack odorant now and bacterial gas is molten
The equipment and technology that glue removes simultaneously.
The content of the invention
Produced in view of urban operating mechanisms such as conventional municipal sewage plant, domestic garbage treatment plant and house refuse terminals
Raw stench and the deficiency and biofiltration, the respective advantage and disadvantage of ultraviolet catalytic technology of microbial aerosol processing equipment, this
Invention proposes a kind of synchronous equipment for removing odorant and microbial aerosol, and raising contains odorant and microbial aerosol
The treatment effect of waste gas, floor space is saved, is reduced investment outlay and processing cost.
It is a further object of the present invention to provide the present invention to propose a kind of synchronous removal odorant and microbial aerosol
Method.
This hair nozzle of the present invention proposes a kind of synchronous equipment for removing odorant and microbial aerosol, by wet scrubbing
Area, biofiltration area, dry section and ultraviolet catalytic reaction zone are sequentially connected composition, containing odorant and microbial aerosol
Waste gas passes through this four regions successively, and the gas after final purification flows out from the gas outlet of ultraviolet catalytic reaction zone bottom.Its
In：
An air inlet is provided with the side wall of wet scrubbing area bottom, perforated pipe is installed at air inlet, in wet scrubbing
Area is equipped with floating stuffing, and a discharge outlet is provided with the side wall on wet scrubbing area top.
The lightweight active polyurethane biologic packing material that particle diameter is small, porosity is big, biofiltration area are filled in biofiltration area
Nutrient solution spray import is provided with side wall, the pipeline of one connection nutrient solution spray thrower is installed in nutrient solution spray entrance,
The nutrient solution spray thrower passes through the regular spraying nutrient solution of pipeline, nutrition in the top of biofiltration area filler, nutrient solution spray thrower
Liquid recycles, and support filler in bottom is gas distribution grid, and the microorganism in filler is based on heterotrophicy bacteria and fungi.
Drier is housed inside dry section, dry section is connected with ultraviolet catalytic reaction zone.
Ultraviolet photocatalyst reaction zone is made up of several ultraviolet lamp tubes, filling nanometer anatase titania light in reaction zone
Catalyst and coating material, form photocatalyst filter stratum reticulare.
The present invention of the present invention proposes a kind of synchronous method for removing odorant and microbial aerosol, containing odorant
Wet scrubbing area is first passed around with the waste gas of microbial aerosol, gas is humidified, while the malodorant that part aqueous is good
Matter is removed, and subsequently into biofiltration area, the filling lightweight active bio that particle diameter is small, porosity is big is filled out in biofiltration area
Material, biofiltration area upper portion side wall set tubular type nutrient solution spray thrower, and another side wall in top sets out tracheae, and escape pipe connects with dry section
Connect；Dry section is connected with ultraviolet photocatalyst reaction zone, the TiO in photocatalyst2Under the irradiation of uviol lamp, oxidizing force pole is produced
Strong hydroxy (OH) and active oxygen (O), react with odorant, while remove and be not removed in biofiltration area
Microbial aerosol, the odorless, aseptic gas after purification discharge from gas outlet.
The equipment of the present invention has the following advantages that：
1. the advantage of biofiltration and ultraviolet catalytic treatment technology is combined, a kind of joint biofiltration, purple are developed into
Outer photocatalysis technology removes the equipment containing stench and microbial aerosol waste gas caused by Municipal facility simultaneously.The equipment knot
Structure is compact, and construction is succinct, and floor space is small, and operation operation and maintenance are simple, non-secondary pollution.
2. wet scrubbing area can remove part stench and microbial aerosol, while play pre-humidifying effect, reduce
The humidification frequency and load in biofiltration area.
3. the ultraviolet catalytic equipment of biofiltration one is without recirculated water, nutrient solution is periodically provides, and energy consumption is low, manager
Just.
Brief description of the drawings
The structural representation of Fig. 1 present devices.
Reference
1. the perforated pipe of air inlet 2.
3. the discharge outlet of wet scrubbing area 4.
5. the biofiltration area of gas distribution grid 6.
7. the nutrient solution of biofiltration area filler 8. sprays import
9. the dry section of nutrient solution spray thrower 10.
11. the photocatalyst filtering net layer of uviol lamp 12.
13. gas outlet
Embodiment
Embodiment 1.
Refer to Fig. 1.Joint made of lucite is carried out at municipal sewage using biofiltration, ultraviolet catalytic reaction
Manage and contain caused by the urban operating mechanisms such as factory, domestic garbage treatment plant and house refuse terminal at stench and microbial aerosol waste gas
The equipment of reason, its basic structure is cylinder type, mainly by wet scrubbing area 3, biofiltration area 6, dry section 10 and ultraviolet light
The part of catalytic reaction zone four forms；
An air inlet 1 is provided with the side wall of the bottom of wet scrubbing area 3, perforated pipe 2 is installed at air inlet 1, wet
A discharge outlet 4 is provided with the side wall on the top of formula scrubbing section 3；
In biofiltration area 6 built with light polyurethane biologic packing material 7, spray battalion is provided with the side wall in biofiltration area
Nutrient solution liquid import 8, the pipeline of one connection nutrient solution spray thrower 9, nutrient solution spray are installed in nutrient solution spray entrance
Device 9 is in the top of biofiltration area filler；Microorganism in filler is based on heterotrophicy bacteria and fungi；Nutrient solution spray thrower 9 is logical
Cross the regular spraying nutrient solution of pipeline；
Set some ultraviolet lamp tubes 11 in ultraviolet catalytic reaction zone, fill nanometer anatase titania photocatalyst and
Coating material, form photocatalyst filter stratum reticulare 12.
Caused by the urban operating mechanisms such as municipal sewage plant, domestic garbage treatment plant and house refuse terminal containing stench and
The waste gas of microbial aerosol enters wet scrubbing area 3, gas from the air inlet 1 of the bottom of gas humidification area 3 via gas perforated pipe 2
Body is humidified, while the good odorant of part aqueous is removed, subsequently into biofiltration area 6, biofiltration area 6
The small Active biological filler 7 in interior filling high density degree, aperture, it is easy to microorganism colonization, growth, while is easy to micro- in retention air inlet
Bioaerosol, after enter ultraviolet catalytic reaction zone after the desiccant dryness of dry section 10, in the presence of ultraviolet
Reacted with foul gas, while remove the microbial aerosol that biofiltration area 6 is not removed, odorless, nothing after purification
Bacterium gas is discharged from gas outlet 13, and unnecessary humidification liquid is discharged from the discharge outlet 4 of bottom.
It is 5000m to establish treating capacity according to this method3Contain stench and micro- life between/h municipal sewage sludge dehydration
The waste gas treatment equipment of thing aerosol, air inlet hydrogen sulfide, ammonia, heterotrophicy bacteria and fungi aerosol concentration are respectively 4.3mg/m3,
10.5mg/m3, 9000~11000mg/m3With 5000~6000mg/m3Municipal wastewater treatment plant gas, residence time 40s, room temperature
Under the conditions of when operating, the hydrogen sulfide and ammonia of gas outlet are respectively 0mg/m3And 0.02mg/m3, clearance is respectively 100% He
99.8%, heterotrophicy bacteria and fungi in outlet do not detect, and clearance is 100%.
Claims (2)
- A kind of 1. synchronous method for removing odorant and microbial aerosol, it is characterised in that：It is synchronous remove odorant and The equipment of microbial aerosol is sequentially connected group by wet scrubbing area, biofiltration area, dry section and ultraviolet photocatalyst reaction zone Into being wherein provided with an air inlet in the side wall of wet scrubbing area bottom, perforated pipe be provided with air inlet, in wet scrubbing area A discharge outlet is provided with the side wall on top, the lightweight Active biological filler that particle diameter is small, porosity is big, side are filled in biofiltration area Spray liquid import is provided with wall, the pipeline of one connection nutrient solution spray thrower, nutrient solution spray are installed in the spray liquid entrance Drench device and drier, dry section and ultraviolet photocatalyst reaction are housed inside the top of biofiltration area filler, described dry section Area is connected, and described ultraviolet photocatalyst reaction zone is made up of several ultraviolet lamp tubes, while fills dichloride in anatase type titanium dioxide Titanium photocatalyst and coating material, form photocatalyst filter stratum reticulare, and blower fan is arranged on complete equipment backmost；Filler is filled in described wet scrubbing area, inside sets liquid levels indicating gage, ensures that liquid level is higher than gas inlet, Less than discharge outlet；The filler filled in described biofiltration area is light polyurethane Active biological filler, and packing material size is 2~3cm, hole Gap rate be 96%~98%, beneficial to exhaust-gas treatment microorganism colonization, exhaust-gas treatment and air inlet microbial aerosol absorption and cut Stay, biofiltration area bottom is porous packing support plate, and aperture is 3~5mm, has air distribution function concurrently；The method and step of synchronous removal odorant and microbial aerosol is：City containing foul smelling and microbial aerosol Sewage plant gas first passes around wet scrubbing area, and gas is humidified, while the good odorant of part aqueous and microorganism Aerosol is removed, and subsequently into biofiltration area, the Active biological filler filled in biofiltration area is easy to microorganism extension Film, growth, at the same be easy to retain air inlet in microbial aerosol, after after dry section is dried enter ultraviolet light catalyst react In area, the TiO in photocatalyst2Under ultraviolet irradiation, produce the extremely strong hydroxy of oxidizing force (OH) and active oxygen ( O), foul gas reacts, while removes the microbial aerosol that biofiltration area is not removed, and purified gas is from row Gas port is discharged, and blower fan is placed in equipment, is ensured that equipment is in negative pressure state, is avoided the gas containing stench and microbial aerosol Leakage；Installation nutrient solution spray thrower, passes through the regular spraying nutrient solution of pipeline, excessive nutrient solution at the top of described biofiltration area Into wet scrubbing area, the unnecessary nutrient solution higher than level indicator setting liquid level is discharged by discharge outlet, and biofiltration is set in area Put online pH and moisture content monitoring probe, and feedback control formed with sprinkling equipment, ensure filler pH and moisture content respectively 6~ 9 and 40~60%.
- 2. the method according to claim 11, it is characterized in that：It is anti-to enter ultraviolet photocatalyst by the dried gas of dry section Area is answered, ultraviolet wavelength caused by uviol lamp is 253nm, and radiation intensity is 1200 μm/cm2, reaction temperature is 0~50 DEG C, instead It is normal pressure to answer pressure, 5~10s of reaction time, can effectively remove microbial aerosol and odorant that previous stage does not remove.
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| CN201410460781.2A CN105582792B (en) | 2014-09-12 | 2014-09-12 | A kind of synchronous apparatus and method for for removing odorant and microbial aerosol |
Applications Claiming Priority (1)
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| CN201410460781.2A CN105582792B (en) | 2014-09-12 | 2014-09-12 | A kind of synchronous apparatus and method for for removing odorant and microbial aerosol |
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| CN105582792A CN105582792A (en) | 2016-05-18 |
| CN105582792B true CN105582792B (en) | 2018-03-02 |
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| CN108607299A (en) * | 2016-12-12 | 2018-10-02 | 江苏帕斯玛环境科技有限公司 | Novel portable water scrubber |
| CN107364951A (en) * | 2017-08-23 | 2017-11-21 | 中国地质大学（武汉） | A kind of apparatus and method that microbial aerosol pollutant in sewage is reduced from source |
| CN109865425A (en) * | 2017-12-01 | 2019-06-11 | 河南正达环保科技有限公司 | A kind of device and method of catalytic oxidation treatment exhaust gas |
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| CN114392649B (en) * | 2021-12-24 | 2022-10-14 | 北京建筑大学 | Biological deodorization system and method for enhanced removal of microbial aerosol |
| CN116283007A (en) * | 2023-03-03 | 2023-06-23 | 河海大学 | Coral aggregate based on microorganism repair enhancement and preparation method and device thereof |
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| JP2001205040A (en) * | 2000-01-25 | 2001-07-31 | Toko Tekko Kk | Disinfection/deodorization apparatus for waste gas |
| CN101433802B (en) * | 2007-11-12 | 2011-06-01 | 中国科学院生态环境研究中心 | Integral baffle bioreactor waste gas treatment equipment and waste gas treatment method |
| CN101632899B (en) * | 2009-04-14 | 2011-11-16 | 北京昊海天际科技有限公司 | Device and method for deodorization and sterilization of malodorous gas |
| CN102188898A (en) * | 2010-03-10 | 2011-09-21 | 中国科学院生态环境研究中心 | Combined biological deodorization integrated equipment and processing method of odorous gas |
| CN203577629U (en) * | 2013-11-28 | 2014-05-07 | 北京建筑大学 | Malodorous gas treatment device for municipal solid waste treatment plant |
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