CN108554164A - A kind of air biofiltration device and method for phthalic acid ester of degrading - Google Patents
A kind of air biofiltration device and method for phthalic acid ester of degrading Download PDFInfo
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- CN108554164A CN108554164A CN201810480526.2A CN201810480526A CN108554164A CN 108554164 A CN108554164 A CN 108554164A CN 201810480526 A CN201810480526 A CN 201810480526A CN 108554164 A CN108554164 A CN 108554164A
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- air
- packing material
- biologic packing
- acid ester
- phthalic acid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
- B01D53/85—Biological processes with gas-solid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/95—Specific microorganisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/704—Solvents not covered by groups B01D2257/702 - B01D2257/7027
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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 belongs to technical field of air purification, specifically disclose a kind of air biofiltration device and method for phthalic acid ester of degrading.The air biofiltration device includes shell, the standing reservoir device being successively set on from the bottom up in shell, supporting layer, biologic packing material layer and biologic packing material layer microorganism reactor inspection socket, spraying mechanism and air outlet arranged side by side；The supporting layer is connected with Blast mechanism, and the Blast mechanism is arranged outside shell；The standing reservoir device is connected with front pump and spraying mechanism successively by pipeline.Phthalic acid ester in air biofilter energy efficient degradation green house of vegetables air of the present invention, it can be according to packing layer of the type setting containing different biomembranes of phthalic acid ester in greenhouse air, adaptable, applicability is wide, can meet the needs of different vegetable greenhouse.
Description
Technical field
The present invention relates to technical field of air purification, and in particular, to a kind of air for phthalic acid ester of degrading
Biofiltration device and method.
Background technology
Phthalic acid ester（PAEs）It is a kind of important artificial synthesized organic compound, is widely used in plastic plasticizer
（It is commonly called as plasticiser）And the industries such as automobile, clothes, cosmetics, lubricant and pesticide, largely enter in environment, and with half
Volatility and long-distance mobility become global environmental contaminants.PAEs has a toxicity such as carcinogenic, teratogenesis, mutagenesis, especially with
It causes human body reproductive function extremely of greatest concern, is typical incretion interferent, be known as " second global PCB
Pollutant ".
Currently, many countries and environmental protection organization including China are included in priority pollutants, and take phase
The harm for answering measure to prevent PAEs to human health.Booth vegetable produces（Usually use vinyl house）To alleviating the confession in vegetables dull season
It asks contradiction to play important function, there is significant social benefit and huge economic benefit.It is widely used in green house of vegetables
Plastic greenhouse film contains PAEs, and content is the characteristic contamination of green house of vegetables up to the 50% of plastics itself.With usage time
Passage, PAEs can be discharged into external environment by plastic greenhouse film, cause the PAEs of the hollow gas and water of environment of vegetable greenhouse and soil dirty
Dye, and then the absorption for passing through vegetables（Or absorption）Accumulation enters food chain, causes to seriously threaten to the health of humans and animals.It is related
Studies have shown that PAEs is up to 1.94~35.4mg/L in the booth vegetables soil such as Shanghai and Nanjing, it has been more than partly that China is newly repaiied
It orders《Standard of soil environment quality》Controlling value（10mg/L）.PAEs in booth vegetable is also generally detected.Correlative study
The results show that the PAEs in plastic shed soil and vegetables will be significantly higher than soil and the vegetables of outdoor cultivation.Soil is that vegetables absorb
One of approach of phthalic acid ester, but vegetables can also absorb PAEs from air and be shifted to edible part, cause human body sudden and violent
Reveal increased risk.There is PAEs efficient degrading bacterias in soil, bottom degradation Phthalate Esters In Soil, but O-phthalic can be surveyed
The aerial degradation of acid esters is very slow, especially this kind of semi-enclosed space of green house of vegetables, over time, PAEs
Concentration can dramatically increase.Therefore, there is an urgent need to study one kind can effectively degrade phthalic acid ester in green house of vegetables air
Device or method.
Invention content
The purpose of the invention is to overcome the above-mentioned deficiency of the prior art, provide a kind of for phthalic acid ester of degrading
Air biofilter, pass through the phthalic acid ester in the biomembrane energy efficient degradation green house of vegetables air in packing layer.
Another object of the present invention is to provide the sides for phthalic acid ester of being degraded using above-mentioned air biofilter
Method.
To achieve the goals above, the present invention is achieved by following scheme：
It is a kind of for the air biofilter of phthalic acid ester of degrading, including shell, be successively set on shell from the bottom up
Interior standing reservoir device, supporting layer, biologic packing material layer, with biologic packing material layer microorganism reactor inspection socket arranged side by side, spray
Mechanism and air outlet；The supporting layer is connected with Blast mechanism, and the Blast mechanism is arranged outside shell；The standing reservoir
Device is connected with front pump and spraying mechanism successively by pipeline.
Shell of the present invention is the cavity of opposing seal, and the air biofilter allows using biologic packing material as carrier
Efficient degradation flora forms effective biomembrane in the carrier；After pending gas enters supporting layer by Blast mechanism, gas
It can move upwards, into biologic packing material layer, the microorganism in biologic packing material layer can carry out the phthalic acid ester in air high
Effect degradation, purified gas are discharged by air outlet.Meanwhile the nutrient solution conveying device by the way that cycle is arranged, keep biology to fill out
The activity of microorganism in material.
Preferably, the biologic packing material layer by several up and down combine biologic packing material district's groups at.
It is highly preferred that the biologic packing material area includes stuffing frame and several biologic packing material units being arranged on.
It is highly preferred that the biologic packing material unit includes inside and outside bilayer sphere, outside is hollow fish netted spheroid, and inside is
Spinning ball.The biologic packing material unit mainly plays biofilm carrier, while having the effect of retention suspended matter concurrently, has
Biological attachment power is strong, large specific surface area, porosity are high, chemistry and biological stability are good, it is durable, do not dissolve out nuisance, no
Cause secondary pollution, antiultraviolet, it is anti-aging, hydrophilicity is strong the features such as, in use, microorganism easily generates, Yi Geng
It changes, is acid and alkali-resistance, anti-aging, not long by water currents, service life, microorganism colonization is fast, biomembrane is easy to fall off, the resistance to biology of product
Degradation, it is easy for installation.- 10 DEG C of brittle temperature, 380~800m of specific surface area2/m3, porosity is more than 99%, proportion 0.93.
It is highly preferred that hanging with biomembrane on the filler unit, the biomembrane is by efficient degradation phthalic acid ester
Flora is formed by biofilm.The biomembrane can be configured according to the type of phthalic acid ester in greenhouse air, the bacterium
Group includes but not limited to bacillus megaterium（Bacillus megaterium）YJB3, Providence（Providencia
sp.）2D, achromobacter（Achromobacter sp.）MT-H, Rhodococcus sp（Rhodococcussp.）2G, earth mould
（Agromycessp.）MT-E, microbacterium（Microbacteriumsp.）J-1.
The biofilm process of the biomembrane is as follows：The flora of efficient degradation PAEs is filtered out, imports and hangs after purified, enrichment
In membrane reactor, and temperature control aeration is carried out, temperature is 30~35 DEG C, aeration quantity 16L/min.Continuous aeration 10d is observed daily
Biological attachment growing state, refreshes the water periodically every 1d later.It needs all to outwell the water in biofilm reactor when changing water, be added same
The nutrient solution of sample volume prevents the microorganism on free state microorganism and biologic packing material from vying each other nutrition.Before biofilm and domestication
Phase, with the growth of film, biomembrane slowly thickens, and different variations also occurs in color.About after 30~40d, on biologic packing material
Biomembrane have certain hierarchical structure, can be used for the removal of phthalic acid ester in air.
Preferably, the supporting layer is made of several cobblestones, can load-bearing can guarantee that there are a fixed gaps to make again
Gas and nutrient solution pass through.
Preferably, the spraying mechanism is spray atomizer, including several single mouth spray nozzle capable of regulating flow quantity, sprays diameter
With flow depending on air biofilter size, collocation 8/12mm middle pipes use.It is highly preferred that the 8/12mm middle pipes are adopted
It is made of rubber, cold-resistant, anti-aging, antiknock is split, is not easy to break.
Preferably, the outside of the air biofilter is equipped with pH mechanism for monitoring, can monitor microbe survival environment.
Preferably, when nutrient solution after a period of use, can be discharged by entry/exit liquid mouth.It is provided on the entry/exit liquid mouth
Two way valve.
Preferably, the Blast mechanism is wind turbine, and blower housing is iron-clad, and model needs the size according to greenhouse true
It is fixed.
Especially, it should be noted that not having the required carbon source of microorganism in the nutrient solution, microbe carbon source is all come
From the phthalic acid ester in air.Preferably, the formula of the nutrient solution is K2HPO4 5.8g/L、KH2PO4 4.5g/L、
(NH4)2SO4 2.0g/L、MgCl2 0.16g/L、CaCl2 0.02g/L、Na2MoO4·2H2O 0.0024g/L、FeCl3
0.0018g/L、MnCl2·2H2O 0.0015g/L, add distilled water to be settled to 1L.
Preferably, the front pump is mainly used for transporting nutrient solution, and model is according to depending on standing reservoir device size.
Preferably, the microorganism reactor inspection socket grows/falls off feelings for inspecting periodically biologic packing material layer microorganism
Condition.
A method of using above-mentioned air biofilter degradation phthalic acid ester, include the following steps：It will contain
The gas of phthalic acid ester inputs supporting layer by Blast mechanism, and gas is entered by supporting layer after biologic packing material layer to be dropped by microorganism
Solution, purified gas are discharged by air outlet；The nutrient solution in standing reservoir device is extremely sprayed through front pump and pipeline simultaneously
Leaching mechanism is sprayed, and the bioactivity of biologic packing material unit in biologic packing material layer is kept, and the nutrient solution after spray is by biology
Packing layer and supporting layer are back in standing reservoir device.
Compared with prior art, the invention has the advantages that：
Phthalic acid ester in air biofilter energy efficient degradation green house of vegetables air of the present invention, can be according to greenhouse
Packing layer of the type setting containing different biomembranes of phthalic acid ester in air, adaptable, applicability is wide, can meet
The demand of different vegetable greenhouse.Meanwhile the nutrient solution conveying device by the way that cycle is arranged, keep the work of biomembrane on biologic packing material
Property.
Description of the drawings
Fig. 1 is the structural schematic diagram of air biofilter.
Fig. 2 is the structural schematic diagram of biological packing area.
Fig. 3 is the structure chart of biological filler unit.
Fig. 4 is the structure chart of spraying mechanism.
Description of the drawings：1-pH mechanism for monitoring；2- Blast mechanisms；3- entry/exit liquid mouths；4- air outlets；5- spraying mechanisms；6- is defeated
Enter pump；7- pipelines；8- standing reservoir devices；9- microorganism reactor inspection sockets；10- supporting layers；11- biologic packing material layers；12- is filled out
Rack；13- biologic packing material units.
Specific implementation mode
With reference to the accompanying drawings of the specification and specific embodiment is made the present invention and is further elaborated, the embodiment
It is served only for explaining the present invention, be not intended to limit the scope of the present invention.Test method used in following embodiments is such as without spy
Different explanation, is conventional method；Used material, reagent etc., unless otherwise specified, for the reagent commercially obtained
And material.
Embodiment 1
It is a kind of for the air biofilter of phthalic acid ester of degrading, as shown in Figure 1, shell including sealing, from lower past
On be successively set on standing reservoir device 8 in shell, supporting layer 10, biologic packing material layer 11, arranged side by side with biologic packing material layer 11
Microorganism reactor inspection socket 9, spraying mechanism 5 and air outlet 4；The supporting layer 10 is connected with Blast mechanism 2, the air blower
Structure 2 is arranged outside shell；The standing reservoir device 8 is connected with front pump 6 and spraying mechanism 5 successively by pipeline 7.
The air biofilter allows efficient degradation flora to form effective biology in the carrier using biologic packing material as carrier
Film；After pending gas enters supporting layer 10 by Blast mechanism 2, gas can move upwards, raw into biologic packing material layer 11
Microorganism in object packing layer 11 can carry out efficient degradation to the phthalic acid ester in air, and purified gas is by air outlet
Discharge.Meanwhile the nutrient solution conveying device by the way that cycle is arranged, keep the activity of microorganism in biologic packing material.
The biologic packing material layer 11 by about 6 combine biologic packing material district's groups at.As shown in Fig. 2, each biologic packing material
Area includes stuffing frame 12 and several biologic packing material units 13 being arranged on.
6 biologic packing material areas are followed successively by from the bottom up：Bacillus megaterium YJB3 biologic packing materials area, Providian this
Bacterium 2D biologic packing materials area, achromobacter MT-H biologic packing materials area, Rhodococcus sp 2G biologic packing materials area, earth mould MT-E biologic packing materials area
With microbacterium J-1 biologic packing materials area.
As shown in figure 3, the biologic packing material unit 13 includes inside and outside bilayer sphere, outside is hollow fish netted spheroid, interior
Portion is spinning ball.The biologic packing material unit 13 mainly plays biofilm carrier, while having the work of retention suspended matter concurrently
With, have biological attachment power is strong, large specific surface area, porosity are high, chemistry and biological stability are good, it is durable, do not dissolved out
Evil object, do not cause secondary pollution, antiultraviolet, it is anti-aging, hydrophilicity is strong the features such as, in use, microorganism is easily raw
At, easily replacements, acid and alkali-resistance, anti-aging, long not by water currents, service life, microorganism colonization is fast, biomembrane is easy to fall off, produces
The resistance to biodegradation of product, it is easy for installation.- 10 DEG C of brittle temperature, 380~800m of specific surface area2/m3, porosity is more than 99%, proportion
0.93。
Hang with biomembrane on the biologic packing material unit 13, the biomembrane by efficient degradation phthalic acid ester flora
It is formed by biofilm.The flora is respectively bacillus megaterium（Bacillus megaterium）YJB3, Providence
（Providenciasp.）2D, achromobacter（Achromobacter sp.）MT-H, Rhodococcus sp（Rhodococcussp.）
2G, earth mould（Agromycessp.）MT-E, microbacterium（Microbacteriumsp.）J-1 corresponds to 6 biologies and fills out respectively
Expect area.
The biofilm process of the biomembrane is as follows：The flora of efficient degradation PAEs is filtered out, is imported after purified, enrichment
In biofilm reactor, and temperature control aeration is carried out, temperature is 30~35 DEG C, aeration quantity 16L/min.Continuous aeration 10d is seen daily
Biological attachment growing state is examined, is refreshed the water periodically later every 1d.It needs all to outwell the water in biofilm reactor when changing water, be added
The nutrient solution of same volume prevents the microorganism on free state microorganism and biologic packing material from vying each other nutrition.Biofilm and domestication
Early period, with the growth of film, biomembrane slowly thickens, and different variations also occurs in color.About after 30~40d, biologic packing material
On biomembrane have certain hierarchical structure, can be used for the removal of phthalic acid ester in air.
The supporting layer 10 is made of several cobblestones, can load-bearing can guarantee again there are a fixed gap make gas and
Nutrient solution passes through.
The spraying mechanism 5 is spray atomizer, as shown in figure 4, including several single mouth spray nozzle capable of regulating flow quantity, sprinkling
Diameter and flow are depending on air biofilter size, and collocation 8/12mm middle pipes use, and the 8/12mm middle pipes use rubber
Glue is made, and cold-resistant, anti-aging, antiknock is split, is not easy to break.
The outside of the air biofilter is equipped with pH mechanism for monitoring 1, can monitor microbe survival environment.
Two way valve is provided on the entry/exit liquid mouth 3, nutrient solution can be delivered to standing reservoir by entry/exit liquid mouth 3
Device 8, when nutrient solution after a period of use, and can be discharged by entry/exit liquid mouth 3.
The Blast mechanism 2 is wind turbine, and blower housing is iron-clad, and model needs the size according to greenhouse to determine.
Especially, it should be noted that not having the required carbon source of microorganism in the nutrient solution, microbe carbon source is all come
From the phthalic acid ester in air.The specific formula of the nutrient solution is K2HPO4 5.8g/L、KH2PO4 4.5g/L、
(NH4)2SO4 2.0g/L、MgCl2 0.16g/L、CaCl2 0.02g/L、Na2MoO4·2H2O 0.0024g/L、FeCl3
0.0018g/L、MnCl2·2H2O 0.0015g/L, add distilled water to be settled to 1L.
The front pump 6 is mainly used for transporting nutrient solution, depending on model is according to 8 size of standing reservoir device.
Preferably, the microorganism reactor inspection socket 9 grows/falls off feelings for inspecting periodically biologic packing material layer microorganism
Condition.
A method of using above-mentioned air biofilter degradation phthalic acid ester, include the following steps：It will contain
The gas of phthalic acid ester inputs supporting layer 10 by Blast mechanism 2, and gas is by quilt after the entrance biologic packing material of supporting layer 10 layer 11
Microbial degradation, purified gas are discharged by air outlet 4；The nutrient solution in standing reservoir device 8 is through front pump 6 and pipe simultaneously
Road 7 is delivered to spraying mechanism 5 and is sprayed, the bioactivity of biologic packing material unit 13 in holding biologic packing material layer 11, after spray
Nutrient solution be back in standing reservoir device 8 by biologic packing material layer 11 and supporting layer 10.
Embodiment 2
It is as shown in table 1 using air biofilter degradation phthalic acid ester, design parameter described in embodiment 1（With south certain
In green house of vegetables air for PAEs concentration）：
1 design parameter of table is collected
| Serial number | Parameter | Quantity |
| 1 | Greenhouse area（m2） | 40×200 |
| 2 | Greenhouse height（m） | 3 |
| 3 | DBP （μg/m3） | 48 |
| 4 | DEHP（μg/m3） | 38 |
| 5 | Air contacts percentage with filler（%） | 85 |
| 6 | Microorganism is averaged degradation rate（mg/h） | 54 |
1, according to the above parameter, the volume for obtaining greenhouse is 24000 m3；
2, phthalic acid ester total content in greenhouse air：
DBP：48×24000=1152 mg；DEHP：38×24000=912 mg；
3, the wind turbine of model cz-td550 can be selected, fan parameter is as follows：Bore 68mm, model cz-td550, power 550w,
Pressure 2200pa, frequency 50hz, flow 870m3/ h, voltage 220v, rotating speed 2820r/min；
4, using the phthalic acid ester in air biofilter degradation greenhouse described in embodiment 1, the sky contacted with microorganism
Phthalic acid ester degradation efficiency in gas is 54mg/h, therefore the time that purify the needs of the DBP in greenhouse is 1152/2/
54/0.85=12.55h, it is 912/2/54/0.85=9.93h to purify the time that the DEHP in greenhouse needs.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than is protected to the present invention
The limitation of shield range can also be made on the basis of above description and thinking for those of ordinary skill in the art
Other various forms of variations or variation, there is no necessity and possibility to exhaust all the enbodiments.It is all the present invention
All any modification, equivalent and improvement etc., should be included in the protection of the claims in the present invention made by within spirit and principle
Within the scope of.
Claims (10)
1. a kind of for the air biofilter of phthalic acid ester of degrading, which is characterized in that including shell, from the bottom up according to
The secondary standing reservoir device being arranged in shell（8）, supporting layer（10）, biologic packing material layer（11）And biologic packing material layer（11）And
The microorganism reactor inspection socket of row（9）, spraying mechanism（5）And air outlet（4）；The supporting layer（10）It is connected with Blast mechanism
（2）, the Blast mechanism（2）It is arranged outside shell；The standing reservoir device（8）Pass through pipeline（7）Successively with front pump（6）
And spraying mechanism（5）It is connected.
2. air biofilter according to claim 1, which is characterized in that the biologic packing material layer（11）By several
The biologic packing material district's groups combined up and down at.
3. air biofilter according to claim 2, which is characterized in that the biologic packing material area includes stuffing frame
（12）And several biologic packing material units being arranged on（13）.
4. air biofilter according to claim 3, which is characterized in that the biologic packing material unit（13）It is inside and outside
Bilayer sphere, outside are hollow fish netted spheroid, and inside is spinning ball.
5. air biofilter according to claim 3, which is characterized in that the biologic packing material unit（13）On hang with
Biomembrane, the biomembrane are formed by the flora of efficient degradation phthalic acid ester by biofilm.
6. air biofilter according to claim 1, which is characterized in that the supporting layer（10）By several goose ovum
Stone forms.
7. air biofilter according to claim 1, which is characterized in that the spraying mechanism（5）For spray atomizing
Device, including several single mouth spray nozzle capable of regulating flow quantity.
8. air biofilter according to claim 1, which is characterized in that the outside of the air biofilter is set
There is pH mechanism for monitoring（1）.
9. air biofilter according to claim 1, which is characterized in that the standing reservoir device（8）One end is set
It is equipped with entry/exit liquid mouth（3）.
10. a kind of method for phthalic acid ester of being degraded using claim 1~9 any one of them air biofilter,
It is characterised in that it includes following steps：By the gas containing phthalic acid ester by Blast mechanism（2）Input supporting layer（10）,
Gas is by supporting layer（10）Into biologic packing material layer（11）After be degraded by microorganisms, purified gas is by air outlet（4）Discharge；
Standing reservoir device simultaneously（8）In nutrient solution through front pump（6）And pipeline（7）It is delivered to spraying mechanism（5）It is sprayed, is protected
Hold biologic packing material layer（11）Middle biologic packing material unit（13）Bioactivity, the nutrient solution after spray passes through biologic packing material layer（11）
And supporting layer（10）It is back to standing reservoir device（8）In.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109046005A (en) * | 2018-10-31 | 2018-12-21 | 郑州韦尔特生物科技有限公司 | A kind of organic waste gas treatment equipment with biologic packing material |
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