CN110639312A - Low-cost deodorization system of pig house - Google Patents

Low-cost deodorization system of pig house Download PDF

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Publication number
CN110639312A
CN110639312A CN201910879364.4A CN201910879364A CN110639312A CN 110639312 A CN110639312 A CN 110639312A CN 201910879364 A CN201910879364 A CN 201910879364A CN 110639312 A CN110639312 A CN 110639312A
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spray
filter screen
cost
backflow
deodorization
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Chinese (zh)
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王燕
周世政
廖新俤
吴银宝
米见对
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South China Agricultural University
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South China Agricultural University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/60Combinations of devices covered by groups B01D46/00 and B01D47/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/54Nitrogen compounds
    • B01D53/58Ammonia
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/84Biological processes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Treating Waste Gases (AREA)
  • Housing For Livestock And Birds (AREA)

Abstract

The invention discloses a low-cost pig house deodorization system which comprises a negative pressure fan, a deodorization filter screen mechanism and a spraying mechanism, wherein an air inlet of the negative pressure fan is positioned inside a pig house, an air outlet of the negative pressure fan is positioned outside the pig house, the negative pressure fan is used for discharging odor in the pig house to the outside of the pig house, the deodorization filter screen mechanism and the spraying mechanism are respectively positioned on an air outlet path of the air outlet, the spraying mechanism respectively sprays clean water and bacterial liquid, the low-cost pig house deodorization system further comprises a backflow mechanism, the backflow mechanism comprises a backflow table, a clean water collecting tank and a bacterial liquid collecting tank, the backflow table is positioned below the deodorization filter screen mechanism and the spraying mechanism, a plurality of backflow grooves extending along the air outlet path are arranged on the backflow table, the clean water collecting tank is positioned at the tail ends of the plurality of backflow grooves, and the bacterial liquid is positioned below a. The odor is treated to obtain clean air, so that the problems that the air quality around a pig farm is poor, the surrounding is not suitable for living and the like are solved.

Description

Low-cost deodorization system of pig house
Technical Field
The invention relates to the technical field of environmental protection, in particular to a low-cost deodorization system for a pigsty.
Background
The pig raising industry is a supporting industry in agricultural production in China and plays an important role in safe supply of national meat products. With the development of pig raising technology, the traditional pig raising industry in China is transited to the modern intensive pig raising industry, the generated environmental problems are more and more serious, and the pig raising industry is paid attention by the nation and the society.
A large amount of odor is produced in intensive piggeries every day, but the odor produced in most of the conventional piggeries is discharged into the atmosphere without being treated, so that certain air pollution is caused, the burden of the environment is increased, the requirement of environmental protection is not met, and the life quality of surrounding residents is greatly influenced. At present, the deodorizing device on the market has the defects of high price, difficult maintenance and the like, and is difficult to popularize in production.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a low-cost deodorization system for a pigsty, which reduces the pollution to the atmosphere by treating and then discharging the odor discharged from the pigsty into the atmosphere, and has low cost and simple and convenient operation.
The technical scheme of the invention is as follows: the utility model provides a pig house low-cost deodorization system, includes negative pressure air fan, deodorization filter screen mechanism and spraying mechanism, negative pressure air fan's air intake is located the inside of pig house, and negative pressure air fan's air outlet is located the pig house outside, and negative pressure air fan is used for discharging the foul smell in the pig house outside the pig house, and deodorization filter screen mechanism and spraying mechanism are located the air-out route of air outlet respectively, and spraying mechanism sprays clear water and fungus liquid respectively, and clear water and fungus liquid form the water film respectively on the mesh of deodorization filter screen mechanism, and the water film is used for blocking the dust granule that carries the foul smell and passes through, and the fungus liquid is used for absorbing the foul smell. Through the mutual matching of the deodorization filter screen mechanism and the spraying mechanism, a water film is formed on meshes of the deodorization filter screen mechanism, dust particles carrying odor are blocked and settled by the water film when the odor passes through, and the bacteria liquid absorbs the residual odor, so that the deodorization treatment of the odor is realized; the bacterial liquid can improve the number of bacterial colonies, change the structure of the bacterial colonies and promote the conversion of ammonium nitrogen to nitrate nitrogen, organic acid in the bacterial liquid can react with ammonia in odor after the odor is absorbed by the bacterial liquid, and the removal rate of the ammonia and hydrogen sulfide in the odor can reach 90%.
Further, deodorization filter screen mechanism includes first filter screen and second filter screen, and spraying mechanism includes first spraying group, second spraying group and third spraying group, and first filter screen and second filter screen are arranged along the air-out route in proper order, and first spraying group and second spraying group are located between air outlet and the first filter screen, and third spraying group is located between first filter screen and the second filter screen. When the foul smell came out from the air outlet, the dust particle carrying the foul smell is the most, so set up first spraying group and second spraying group and be located between air outlet and the first filter screen, the maximize subsides and blocks the dust particle carrying the foul smell earlier, after remaining foul smell passed through first filter screen, third spraying group and second filter screen carried the dust particle of foul smell again and subsided and block for the second time to absorb remaining foul smell, ensure that the foul smell processing work is thorough.
Furthermore, the first spraying group and the second spraying group spray clean water, the third spraying group sprays bacteria liquid, the cost of the clean water is lower than that of the bacteria liquid, the first spraying group and the second spraying group spray clean water, dust particles carrying odor are settled and blocked to the maximum extent, and the rest odor is absorbed by the bacteria liquid, so that the cost can be reduced.
Further, first spraying group, second spraying group and third spraying group are respectively including spray piping, a plurality of shower nozzle, water pump and water tank, and every spray piping of group is including three shower pipes of arranging from top to bottom, and a plurality of shower nozzles are installed respectively on the shower pipe, and spray piping is connected with the water tank, and the water pump is the spray piping pressure boost.
Furthermore, the spray heads on the three spray pipes arranged from top to bottom are respectively arranged in a staggered manner in the up-down direction, so that the overlapping of the radiation ranges of the spray heads is avoided, and the radiation range of the spray heads is enlarged.
Furthermore, a timer is arranged on the spray head and used for controlling the spray head to spray regularly. The timer controls the spray head to work at the peak time of odor emission, and the spray head can not spray at other time, thereby further reducing the cost.
Further, the first filter screen and the second filter screen respectively comprise a frame and a nylon net connected to the frame, and the aperture of the nylon net is 10-12 needles. The nylon net with the aperture can effectively block the emission of dust particles and can furthest reduce the influence on environmental indexes such as wind speed of a pigsty and the like.
Further, pig house low-cost deodorization system still includes backflow mechanism, backflow mechanism includes backward flow platform, clear water collecting vat and fungus liquid collecting vat, and the backward flow platform is located deodorization filter screen mechanism and spraying mechanism below, is equipped with many backward flow tanks that extend along the air-out route on the backward flow bench, and the clear water collecting vat is located the end of many backward flow tanks, and the fungus liquid collecting vat is located the below of second filter screen. Clear water sprayed by the spraying mechanism flows into the clear water collecting tank through the plurality of reflux tanks, is filtered after standing and precipitating, and can be recycled; the bacterium liquid collecting tank collects bacterium liquid flowing down along the second filter screen, and the bacterium liquid is placed statically and deposited and then filtered, so that the bacterium liquid can be recycled, and the cost is further reduced.
Further, the height of the backflow platform is gradually reduced along the air outlet path, so that the flowing speed of clean water on the backflow groove can be increased, and meanwhile, water accumulation on the backflow platform is prevented.
Further, the bacterial liquid is prepared from bacillus subtilis, bacillus stearothermophilus and candida utilis according to the proportion of 1:1: 2. The bacterial liquid can improve the number of bacterial colonies, change the structure of the bacterial colonies, promote the conversion of ammonium nitrogen to nitrate nitrogen, after odor is absorbed by the bacterial liquid, organic acid in the bacterial liquid can react with ammonia gas in odor, the removal rate of ammonia gas and hydrogen sulfide in odor can reach 90%, the chemical oxygen demand and the ammonia nitrogen content in the bacterial liquid meet the secondary sewage discharge standard, secondary pollution can not be generated, and the bacterial liquid is convenient to popularize in production; and the bacterial liquid is easy to prepare and has lower production cost.
Compared with the prior art, the invention has the following beneficial effects:
according to the low-cost pig house deodorization system, the negative pressure fan is used for conveying odor in the pig house to the outside of the pig house, the first spraying group and the second spraying group are used for spraying clean water to settle dust particles carrying the odor, and water films are formed on meshes of the first filter screen to block the dust particles carrying the odor, so that the purpose of removing a part of the odor is achieved; and then the third spraying group sprays bacteria liquid to absorb the residual odor, and a water film is formed on meshes of the second filter screen to block dust particles carrying the odor, so that the purpose of treating the residual odor is achieved, the removal rate of ammonia and hydrogen sulfide can reach 90%, the treated air meets the exhaust emission standard, and the treated air can be directly discharged into the atmospheric environment.
According to the low-cost pig house deodorization system, the clean air is obtained after the odor is treated, the problems that the air quality around a pig farm is poor, the periphery is not suitable for living and the like are solved, and a solution with good effect and low cost is provided for small and medium-sized pig farms under the high environment pressure maintaining force.
Drawings
FIG. 1 is a schematic view showing the construction of a low-cost deodorizing system for a pigsty according to the present invention.
FIG. 2 is a schematic view showing the construction of a low-cost deodorizing system for a pigsty in example 3 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Example 1
The embodiment provides a low-cost deodorization system of pig house, includes negative pressure air fan 1, deodorization filter screen mechanism and spraying mechanism.
Negative-pressure air fan's air intake is located the inside of pig house 2, and negative-pressure air fan's air outlet is located the pig house outside, and negative-pressure air fan is used for discharging the foul smell in the pig house outside the pig house, and deodorization filter screen mechanism and spraying mechanism are located the air-out route of air outlet respectively.
The deodorization filter screen mechanism comprises a first filter screen 3 and a second filter screen 4, the first filter screen and the second filter screen respectively comprise a frame and a nylon net connected to the frame, the aperture of the nylon net is 10-12 needles, in the embodiment, the aperture of the nylon net is 12 needles, not only can the emission of dust particles be effectively blocked, but also the influence on environmental indexes such as the wind speed of the pigsty can be reduced to the maximum extent, in other embodiments, other sizes are also possible, and further description is not provided herein.
The spraying mechanism comprises a first spraying group 5, a second spraying group 6 and a third spraying group 7, wherein the first spraying group and the second spraying group are positioned between the air outlet and the first filter screen, and the third spraying group is positioned between the first filter screen and the second filter screen. The first spraying group and the second spraying group spray clean water, the third spraying group sprays bacteria liquid, the clean water is used for settling and blocking dust particles carrying odor to the maximum extent, and the rest odor is absorbed by the bacteria liquid, so that the cost can be reduced. In the embodiment, the bacterial liquid is prepared from bacillus subtilis, bacillus stearothermophilus and candida utilis according to the proportion of 1:1:2, the bacterial liquid is added into water according to the proportion of 0.5% for spraying, the bacterial liquid can improve the number of bacterial colonies, change the structure of the bacterial colonies and promote conversion of ammonium nitrogen into nitrate nitrogen, after odor is absorbed by the bacterial liquid, organic acid in the bacterial liquid can react with ammonia gas in the odor, the bacterial liquid has a good deodorization effect, the chemical oxygen demand and the ammonia nitrogen content in the bacterial liquid meet the secondary sewage discharge standard, secondary pollution cannot be generated, and the bacterial liquid is convenient to popularize in production; and the bacterial liquid is easy to prepare and has lower production cost.
First spraying group, second spraying group and third spraying group include spray piping, a plurality of shower nozzles, water pump and water tank respectively, and every spray piping of group is including three showers of from top to bottom arranging, and a plurality of shower nozzles are installed respectively on the shower, and the setting of staggering in the upper and lower direction respectively is gone up to the shower nozzle on three showers of from top to bottom arranging, avoids the radiation range that the shower nozzle sprayed to overlap, increases the radiation range that the shower nozzle sprayed, and spray piping is connected with the water tank, and the water pump is the spray piping pressure boost.
Conveying the odor in the pigsty to the outside of the pigsty by using a negative pressure fan, spraying clean water through a first spraying group and a second spraying group to settle dust particles carrying the odor, and forming a water film on meshes of a first filter screen to block the dust particles carrying the odor so as to achieve the purpose of removing a part of the odor; and then the third spraying group sprays bacteria liquid to absorb the residual odor, and a water film is formed on meshes of the second filter screen to block dust particles carrying the odor, so that the purpose of treating the residual odor is achieved, the removal rate of ammonia and hydrogen sulfide can reach 90%, the treated air meets the exhaust emission standard, and the treated air can be directly discharged into the atmospheric environment.
Example 2
The difference between this embodiment and embodiment 1 is that the third spray group has a timer on the spray head, and the timer controls the spray head to work in a specified time period, and NH in the piggery3The emission peak is 7:00-9:00, 14:00-16:00, and 20:30-22:30 every day is the peak period of the odor complaint of residents, so that the timer is arranged to spray the bacteria liquid by the spray head in the three time periods, and the cost of the bacteria liquid is higher than that of clean water, and the cost can be further reduced by arranging the timer.
Example 3
As shown in fig. 2, the present embodiment is different from embodiment 1 in that the low-cost deodorization system for a pig house further includes a backflow mechanism, the backflow mechanism includes a backflow table 8, a clean water collecting tank 9 and a bacteria liquid collecting tank 10, the backflow table is located below the deodorization filter screen mechanism and the spraying mechanism, the backflow table is inclined, the height of the backflow table is gradually reduced along the air outlet path, a plurality of backflow grooves extending along the air outlet path are arranged on the backflow table, the clean water collecting tank is located at the tail end of the plurality of backflow grooves, and the bacteria liquid collecting tank is located below the second filter screen. Clear water sprayed by the spraying mechanism flows into the clear water collecting tank through the plurality of reflux tanks, is filtered after standing and precipitating, and can be recycled; the bacterium liquid collecting tank collects bacterium liquid flowing down along the second filter screen, and the bacterium liquid is placed statically and deposited and then filtered, so that the bacterium liquid can be recycled, and the cost is further reduced. In one breeding period, the cost can be reduced to 3.5 yuan/pig.
As mentioned above, the present invention can be better realized, and the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes and modifications made according to the present disclosure are intended to be covered by the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a pig house low-cost deodorization system, a serial communication port, including negative-pressure air fan, deodorization filter screen mechanism and spraying mechanism, negative-pressure air fan's air intake is located the inside of pig house, and negative-pressure air fan's air outlet is located the pig house outside, and negative-pressure air fan is used for discharging the foul smell in the pig house outside the pig house, and deodorization filter screen mechanism and spraying mechanism are located the air-out route of air outlet respectively, and spraying mechanism sprays clear water and fungus liquid respectively, and clear water and fungus liquid form the water film respectively on the mesh of deodorization filter screen mechanism, and the water film is used for the block to carry the dust granule of foul smell to pass through, and the fungus liquid is used for.
2. The pigsty low-cost deodorization system according to claim 1, wherein the deodorization filter mechanism comprises a first filter screen and a second filter screen, the spray mechanism comprises a first spray group, a second spray group and a third spray group, the first filter screen and the second filter screen are sequentially arranged along the air outlet path, the first spray group and the second spray group are positioned between the air outlet and the first filter screen, and the third spray group is positioned between the first filter screen and the second filter screen.
3. The pigsty low-cost deodorization system according to claim 2, wherein the first and second spray groups spray clean water, and the third spray group sprays bacteria liquid.
4. The pigsty low-cost deodorization system according to claim 2, wherein the first spray group, the second spray group and the third spray group respectively comprise a spray pipe, a plurality of spray heads, a water pump and a water tank, each spray pipe group comprises three spray pipes arranged from top to bottom, the plurality of spray heads are respectively arranged on the spray pipes, the spray pipes are connected with the water tank, and the water pump pressurizes the spray pipes.
5. The pigsty low-cost deodorization system according to claim 4, wherein the spray heads of the three spray pipes arranged from top to bottom are respectively arranged in a vertically staggered manner.
6. The pigsty low-cost deodorization system according to claim 4, wherein a timer is arranged on the spray head, and the timer is used for controlling the spray head to spray regularly.
7. The pigsty low-cost deodorization system according to claim 2, wherein the first filter and the second filter respectively comprise a frame and a nylon net connected to the frame, and the aperture of the nylon net is 10-12 needles.
8. The pigsty low-cost deodorization system according to claim 2, further comprising a backflow mechanism, wherein the backflow mechanism comprises a backflow table, a clean water collection tank and a bacteria liquid collection tank, the backflow table is located below the deodorization filter screen mechanism and the spraying mechanism, the backflow table is provided with a plurality of backflow tanks extending along the air outlet path, the clean water collection tank is located at the tail ends of the plurality of backflow tanks, and the bacteria liquid collection tank is located below the second filter screen.
9. The pigsty low cost deodorization system according to claim 8, wherein the height of the return platform is gradually reduced along the air outlet path.
10. The pigsty low-cost deodorization system according to claim 1, wherein the bacterial liquid is prepared from bacillus subtilis, bacillus stearothermophilus and candida utilis according to a ratio of 1:1: 2.
CN201910879364.4A 2019-09-18 2019-09-18 Low-cost deodorization system of pig house Pending CN110639312A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111298637A (en) * 2020-03-16 2020-06-19 温氏食品集团股份有限公司 High-ammonia odor removal system and method for ectopic fermentation bed
CN112915745A (en) * 2021-01-20 2021-06-08 广东省农业科学院动物科学研究所 Semi-open type plant deodorization system

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DE4416687C2 (en) * 1994-05-11 1998-05-20 Fertigbau Noerdlingen Gmbh & C Biological exhaust air scrubber
FR2772638A1 (en) * 1997-12-22 1999-06-25 Gersa Purifying gas and liquid effluents from breeding sheds
CN201073591Y (en) * 2007-08-20 2008-06-18 郑州大学 Novel fetor discharge gas biological purification device
CN103877817A (en) * 2014-03-27 2014-06-25 厦门联创达科技有限公司 Integral type dedusting-deodorizing device in unloading hall of rubbish treatment station, and work flow of dedusting-deodorizing device
CN206198982U (en) * 2016-11-17 2017-05-31 上海启菲特环保生物技术有限公司 The innoxious Odor control integrated system of livestock and poultry
CN207641262U (en) * 2017-10-17 2018-07-24 中国农业大学烟台研究院 A kind of pig house deodorization device
CN207694492U (en) * 2017-12-18 2018-08-07 青岛大牧人机械股份有限公司 A kind of exhaust gas total system for poultry house
CN207803105U (en) * 2018-02-02 2018-09-04 广东广垦畜牧工程研究院有限公司 A kind of pig house deodorization device
CN109329081A (en) * 2018-12-11 2019-02-15 泸溪县元胜生态养殖有限责任公司 Automatic-cleaning type environmental protection pig house and its implementation
CN109569268A (en) * 2018-12-21 2019-04-05 温氏食品集团股份有限公司 Manure fermentation canopy deodorizing methods and system

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Publication number Priority date Publication date Assignee Title
DE4416687C2 (en) * 1994-05-11 1998-05-20 Fertigbau Noerdlingen Gmbh & C Biological exhaust air scrubber
FR2772638A1 (en) * 1997-12-22 1999-06-25 Gersa Purifying gas and liquid effluents from breeding sheds
CN201073591Y (en) * 2007-08-20 2008-06-18 郑州大学 Novel fetor discharge gas biological purification device
CN103877817A (en) * 2014-03-27 2014-06-25 厦门联创达科技有限公司 Integral type dedusting-deodorizing device in unloading hall of rubbish treatment station, and work flow of dedusting-deodorizing device
CN206198982U (en) * 2016-11-17 2017-05-31 上海启菲特环保生物技术有限公司 The innoxious Odor control integrated system of livestock and poultry
CN207641262U (en) * 2017-10-17 2018-07-24 中国农业大学烟台研究院 A kind of pig house deodorization device
CN207694492U (en) * 2017-12-18 2018-08-07 青岛大牧人机械股份有限公司 A kind of exhaust gas total system for poultry house
CN207803105U (en) * 2018-02-02 2018-09-04 广东广垦畜牧工程研究院有限公司 A kind of pig house deodorization device
CN109329081A (en) * 2018-12-11 2019-02-15 泸溪县元胜生态养殖有限责任公司 Automatic-cleaning type environmental protection pig house and its implementation
CN109569268A (en) * 2018-12-21 2019-04-05 温氏食品集团股份有限公司 Manure fermentation canopy deodorizing methods and system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111298637A (en) * 2020-03-16 2020-06-19 温氏食品集团股份有限公司 High-ammonia odor removal system and method for ectopic fermentation bed
CN112915745A (en) * 2021-01-20 2021-06-08 广东省农业科学院动物科学研究所 Semi-open type plant deodorization system

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