CN103920379A - Special plant-type deodorization agent for sewage treatment - Google Patents
Special plant-type deodorization agent for sewage treatment Download PDFInfo
- Publication number
- CN103920379A CN103920379A CN201310009212.1A CN201310009212A CN103920379A CN 103920379 A CN103920379 A CN 103920379A CN 201310009212 A CN201310009212 A CN 201310009212A CN 103920379 A CN103920379 A CN 103920379A
- Authority
- CN
- China
- Prior art keywords
- quaternary ammonium
- ammonium salt
- sewage treatment
- deodorant
- mass percent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000010865 sewage Substances 0.000 title claims abstract description 30
- 238000004332 deodorization Methods 0.000 title abstract description 5
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims abstract description 17
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims abstract description 15
- 239000011425 bamboo Substances 0.000 claims abstract description 12
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 11
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 11
- 241001330002 Bambuseae Species 0.000 claims abstract description 11
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 11
- 239000000052 vinegar Substances 0.000 claims abstract description 11
- 235000021419 vinegar Nutrition 0.000 claims abstract description 11
- 241000196324 Embryophyta Species 0.000 claims abstract description 10
- 150000007524 organic acids Chemical class 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000002023 wood Substances 0.000 claims abstract description 5
- 238000004821 distillation Methods 0.000 claims abstract 2
- 239000002781 deodorant agent Substances 0.000 claims description 28
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 21
- 230000001877 deodorizing effect Effects 0.000 claims description 20
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 15
- 229910000366 copper(II) sulfate Inorganic materials 0.000 claims description 12
- 239000012895 dilution Substances 0.000 claims description 8
- 238000010790 dilution Methods 0.000 claims description 8
- 239000003899 bactericide agent Substances 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 7
- 235000006408 oxalic acid Nutrition 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 10
- 229910021529 ammonia Inorganic materials 0.000 abstract description 8
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 7
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 6
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- 229910000365 copper sulfate Inorganic materials 0.000 abstract 1
- 235000019645 odor Nutrition 0.000 abstract 1
- 239000003206 sterilizing agent Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 230000035943 smell Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 239000003610 charcoal Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- BHNHHSOHWZKFOX-UHFFFAOYSA-N 2-methyl-1H-indole Chemical compound C1=CC=C2NC(C)=CC2=C1 BHNHHSOHWZKFOX-UHFFFAOYSA-N 0.000 description 1
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- 235000006008 Brassica napus var napus Nutrition 0.000 description 1
- 235000001169 Brassica oleracea var oleracea Nutrition 0.000 description 1
- 241001674939 Caulanthus Species 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 150000002898 organic sulfur compounds Chemical class 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The present invention relates to a special plant-type deodorization agent for sewage treatment. According to the present invention, a plant distillation product, ie., a bamboo vinegar or a wood vinegar, is adopted as a main raw material, appropriate amounts of copper sulfate, an organic acid and a quaternary ammonium salt sterilizing agent are added, and mixing is performed to prepare the deodorization agent, wherein the deodorization agent is provided for removing hydrogen sulfide, ammonia and other foul odors produced during a sewage treatment process.
Description
Technical field:
The present invention relates to a kind of with plant extraction liquid be the deodorant that primary raw material is made, be specifically designed to and remove the foul gas such as ammonia, hydrogen sulfide producing in sewage disposal process, belong to the practical new technology of field of environment protection.
Background technology:
Environmental Protection in China portion " 12 " development plan requires: increase approximately 160,000 kilometers of town sewage pipe networks newly in the whole nation in 2015, newly-increased sewage daily handling ability forty-two million ton, substantially realize all counties and emphasis organic town possesses sewage treatment capacity, sewage treatment facility rate of load condensate is brought up to more than 80%, and treatment rate of domestic sewage reaches 85%.Along with the fast development of Re-search on Urbanization, these sewage treatment plants are more and more nearer apart from resident living workspace, human living standard's raising and the enhancing of Public Environmental Awareness, and the deodorizing problem of sewage treatment plant is just causing increasing concern.For preventing and avoid the impact of sewage treatment plant's stink on surrounding resident life, some developed countries have successively formulated some concrete regulations, for example outside German regulation municipal wastewater treatment plant boundary, within the scope of 300 meters, must not build living facilities, do not reach this requirement, in sewage treatment plant, will take the necessary measure that prevents stink diffusion.Sewage treatment plant that China comes into operation and that build all takes up using Odor con trol as one of requisite link of its treatment process, and the market demand of sewage deodorizing equipment and product presents the gesture of rapid growth.
The stink of sewage treatment plant roughly has fish [the amine CH that smells as of rotten fish
3nH
2, (CH
3)
3n], smelly [the ammonia NH of ammonia
3], smelly [the binary amine NH of slough
2(CH
2)
4nH
2], smelly (the hydrogen sulfide H of rotten egg
2s), the smelly [organic sulfur compound (CH of rotten wild cabbage
3)
2s], smelly [the methyl indol C of excrement
8h
5nHCH
3] and the off-odor of some factory effluent.The conventional foul gas treatment technology of sewage treatment plant mainly contains biofilter, bio-trickling filter, bacteria bed, plant extraction liquid deodorizing, charcoal absorption, energetic ion deodorizing, chemical deodorizing and active oxygen deodorizing etc. at present.
Biofilter, bio-trickling filter and bacteria bed operating cost are lower, and one-time investment is lower, and technology is compared with mature and reliable, apply at present morely, but are subject to freezing impact at cold district.Energetic ion deodorizing the lowest coursing cost, the little and non-secondary pollution of floor space, but one-time investment is larger, applies less.Charcoal absorption initial investment is little, but because charcoal absorption capacity is limited, exceedes certain capacity, just must change active carbon, and active carbon is expensive, cause thus operating cost very high, this method is usually used in the removal of low concentration odorous substance and the last handling process of foul smell.Chemical deodorizing operating cost is relatively high, and equipment investment is very high, and chemical deodorizing method also can produce secondary pollution, and deodorizing effect is general, easily produces secondary pollution, and mainly for the treatment of high-concentration waste gas, this method is not generally advised selecting by sewage treatment plant.Active oxygen deodorizing has advantages of that the life-span is long, but technology is still immature.Plant extraction liquid deodorizing operating cost is moderate, floor space is little, non-secondary pollution and maintenance rate low, be the most economic relatively deodorizing method.
Mainly contain following through patent retrieval discovery with the patent that sewage disposal deodorant or plant type deodorant are associated: " industrial sewage deodorant and preparation method thereof " of patent CN1524803, a kind of deodorant for trade effluent and preparation method thereof, taking industrial chemicals such as ferrous sulfate, aluminum sulfate, polyacrylamides as main." a kind of high-efficiency sewage deodorizing method " of patent CN101850211A adopts biofilter technology to carry out deodorizing.In patent CN011391006, mention and carry out deodorizing with bamboo vinegar, but have no the technical description of processing for the stench of sewage disposal especially.The domestic plant type deodorant patented technology that is applied to sewage disposal that there is no of preliminary identification thus, the present invention can fill up this technological gap.
Summary of the invention:
The present invention, taking plant extraction liquid-bamboo vinegar or pyrolkigneous liquid as primary raw material, adds the deodorant that a small amount of copper sulphate, organic acid, quaternary ammonium salt etc. mix, and its Main Ingredients and Appearance and mass percent are as follows:
1, bamboo vinegar or pyrolkigneous liquid: 50%-98%
2, anhydrous cupric sulfate or cupric sulfate crystals: 0.5%-2%
3, the organic acid such as oxalic acid, citric acid: 1%-5%
3, quaternary ammonium salt bactericidal agent: 0.1-1%
5, water: 0-50%
Pyrolkigneous liquid or bamboo vinegar are that in timber or bamboo wood sintering procedure, pyrolytic distills the gas producing through the cooling liquid obtaining.With acetic acid for leading and containing multiple organic acid, aldehydes, phenols (as phenol, methylphenol, biphenol etc.) material, these organic acid substances can effectively be removed the ammonia in environment, and form organic ammonium salt, at present in a large number for the deodorizing of toilet deodorization and plant.These compositions also have certain removal effect to hydrogen sulfide, organic amine, and can play certain sterilization effect.
For effectively removing the hydrogen sulfide in the foul gas of sewage or sludge creation, the present invention has added copper sulphate and has comprised anhydrous cupric sulfate and cupric sulfate crystals in bamboo (wood) vinegar liquid, itself and hydrogen sulfide (H
2s) reaction is as follows:
CuSO
4.5H
2O+H
2S＝CuS↓+H
2SO
4+5H
2O
CuSO
4+H
2S＝CuS↓+H
2SO
4
For reducing deodorant use cost, sewage treatment plant all needs deodorant to carry out Macrodilution, for guaranteeing deodorizing effect to ammonia after dilution, deodorant of the present invention has added appropriate organic acid and has comprised oxalic acid, citric acid, guarantee that deodorant all can effectively be removed the ammonia in environment in 100 times of situations of dilution.
For killing mould and germ in environment, prevent that harmful microbe from growing, in deodorant, add quaternary ammonium salt bactericidal agent.Comprise mono-quaternaries, bi-quaternary ammonium salt, three quaternary ammonium salts, multi-quaternary ammonium salt, hyperbranched quaternary ammonium salt, the environmental protection of quaternary ammonium salt bactericidal agent, easily biological-degradable, do not endanger natural environment and human health, can rapidly and efficiently kill each bacterioid, germ simultaneously.
Detailed description of the invention:
Embodiment one
Deodorant formula is as follows:
1, bamboo vinegar: 95Kg
2, anhydrous cupric sulfate: 1Kg
3, oxalic acid: 3Kg
4, bi-quaternary ammonium salt: 1Kg
To join successively in bamboo vinegar and fully stir 30 minutes according to the load weighted anhydrous cupric sulfate of said ratio, oxalic acid, bi-quaternary ammonium salt, and its each component be dissolved completely and just obtain deodorant products.
Get 1 kilogram of the deodorant of this production, add 99 kilograms, running water and dilute 100 times, stir, deodorant after dilution is sprayed in sewage treatment plant air with wind big gun or sprayer, in Beijing, medium-sized sewage treatment plant is on probation, and the deodorant liquid after dilution can obviously be removed the foul odour such as hydrogen sulfide, ammonia in environment.
Embodiment two
Deodorant formula is as follows:
1, pyrolkigneous liquid: 50Kg
2, cupric sulfate crystals: 1.5Kg
3, oxalic acid: 1Kg
4, three quaternary ammonium salt bactericidal agent: 0.5Kg
5, pure water: 47Kg
To join successively in pure water and fully stir 30 minutes according to the load weighted cupric sulfate crystals of said ratio, oxalic acid, three quaternary ammonium salts, pyrolkigneous liquid, and its each component be dissolved completely and just obtain deodorant products.
0.5 kilogram of deodorant getting this production, adds 99.5 kilograms, running water and dilutes 200 times, stirs and makes final deodorant liquid.Summer in 2012 is in district of Beijing between water treatment vehicle, with agricultural hand sprayer by dilution after deodorant be sprayed in workshop condition, within every 2 hours, spray once, the outer 100 meters of annexes of middle water treatment building imperceptible any stench peculiar smell taste completely, if do not carry out deodorizing processing, middle water treatment building 500 is outer still can feel strong stench peculiar smell.
Embodiment three
Deodorant formula is as follows:
1, pyrolkigneous liquid: 96Kg
2, cupric sulfate crystals: 1.5Kg
3, citric acid: 1.5Kg
4, three quaternary ammonium salt bactericidal agent: 1Kg
To add successively in pyrolkigneous liquid and fully stir 30 minutes according to the load weighted cupric sulfate crystals of said ratio, citric acid, three quaternary ammonium salts, after its each component is dissolved completely, at the above filter of 200 order, solid impurity is filtered out with aperture, just obtain deodorant products.
By 100 times of the clear water dilutions after filtering for the deodorant products of this production, be interrupted sprinkling with micro-sprayer (aperture 0.1mm below).In the cesspool stink of pharmaceutical factory, Beijing B1 is processed, micro-sprayer is with automatic opening controller, within every 2 hours, spray 30 minutes, every 3 meters arrange a Miniature spray jet, by installing sprayer unit additional and spraying the deodorant dilution of this production, stink is obviously eliminated, the imperceptible any stench peculiar smell in ground.
Claims (5)
1. sewage disposal special plant type deodorant is taking bamboo (wood) vinegar liquid as primary raw material, and adds copper sulphate, organic acid and quaternary ammonium salt bactericidal agent and mix, and after dilution, with spray pattern, sewage disposal environment is carried out to deodorizing.
2. the primary raw material as described in right 1 is bamboo wood or timber high temperature distillation product bamboo vinegar or pyrolkigneous liquid, and its mass percent is: 50%-98%.
3. the copper sulphate as described in right 1 comprises anhydrous cupric sulfate and cupric sulfate crystals, and its mass percent is: 0.5%-2%.
4. the organic acid as described in right 1 comprises oxalic acid, citric acid, and its mass percent is: 1%-5%.
5. the quaternary ammonium salt bactericidal agent as described in right 1 comprises mono-quaternaries, bi-quaternary ammonium salt, three quaternary ammonium salts, multi-quaternary ammonium salt, hyperbranched quaternary ammonium salt, and its mass percent is: 0.1-1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310009212.1A CN103920379A (en) | 2013-01-11 | 2013-01-11 | Special plant-type deodorization agent for sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310009212.1A CN103920379A (en) | 2013-01-11 | 2013-01-11 | Special plant-type deodorization agent for sewage treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103920379A true CN103920379A (en) | 2014-07-16 |
Family
ID=51138913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310009212.1A Pending CN103920379A (en) | 2013-01-11 | 2013-01-11 | Special plant-type deodorization agent for sewage treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103920379A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104803438A (en) * | 2015-04-22 | 2015-07-29 | 浙江大学 | Water purifying agent and preparation method thereof |
| CN105498494A (en) * | 2015-12-29 | 2016-04-20 | 辛集市远翔环保能源科技有限公司 | Disinfection deodorant for livestock breeding |
| CN106116352A (en) * | 2016-06-24 | 2016-11-16 | 广德县中威新型材料有限公司 | A kind of low temperature resistant water-repellent paint |
| CN107694327A (en) * | 2017-11-25 | 2018-02-16 | 王用涛 | A kind of biological deodorant and its application method |
| CN110339693A (en) * | 2019-07-16 | 2019-10-18 | 河南碳索新材料科技有限公司 | A kind of plant type air deodorization agent of farm and preparation method thereof |
| CN112625691A (en) * | 2020-10-15 | 2021-04-09 | 浙江浙聚科技有限公司 | Soil deodorant and preparation method and application thereof |
| CN115196822A (en) * | 2022-06-28 | 2022-10-18 | 福建坤净生环保科技有限公司 | Novel disposal method of reverse osmosis concentrated solution of garbage |
| CN115197032A (en) * | 2022-06-28 | 2022-10-18 | 福建坤净生环保科技有限公司 | Novel technology process for producing organic fertilizer through garbage harmlessness |
| CN115197761A (en) * | 2022-06-28 | 2022-10-18 | 福建坤净生环保科技有限公司 | Sludge granulation heat-increasing combustion multi-functional drying-free powder binder |
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|---|---|---|---|---|
| US4163043A (en) * | 1977-03-25 | 1979-07-31 | Institut Francais Du Petrole | Process for removing H2 S and CO2 from gases and regenerating the adsorbing solution |
| CN101327396A (en) * | 2008-07-31 | 2008-12-24 | 深圳市龙澄高科技环保有限公司 | Method and device for removing hydrogen sulfide from gas containing hydrogen sulfide and recovering sulfer using catalytic oxidation |
| CN101433730A (en) * | 2008-11-28 | 2009-05-20 | 浙江林学院 | Treatment agent for domestic refuse containing plant vinegar liquor and uses thereof |
-
2013
- 2013-01-11 CN CN201310009212.1A patent/CN103920379A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4163043A (en) * | 1977-03-25 | 1979-07-31 | Institut Francais Du Petrole | Process for removing H2 S and CO2 from gases and regenerating the adsorbing solution |
| CN101327396A (en) * | 2008-07-31 | 2008-12-24 | 深圳市龙澄高科技环保有限公司 | Method and device for removing hydrogen sulfide from gas containing hydrogen sulfide and recovering sulfer using catalytic oxidation |
| CN101433730A (en) * | 2008-11-28 | 2009-05-20 | 浙江林学院 | Treatment agent for domestic refuse containing plant vinegar liquor and uses thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104803438A (en) * | 2015-04-22 | 2015-07-29 | 浙江大学 | Water purifying agent and preparation method thereof |
| CN105498494A (en) * | 2015-12-29 | 2016-04-20 | 辛集市远翔环保能源科技有限公司 | Disinfection deodorant for livestock breeding |
| CN106116352A (en) * | 2016-06-24 | 2016-11-16 | 广德县中威新型材料有限公司 | A kind of low temperature resistant water-repellent paint |
| CN107694327A (en) * | 2017-11-25 | 2018-02-16 | 王用涛 | A kind of biological deodorant and its application method |
| CN110339693A (en) * | 2019-07-16 | 2019-10-18 | 河南碳索新材料科技有限公司 | A kind of plant type air deodorization agent of farm and preparation method thereof |
| CN112625691A (en) * | 2020-10-15 | 2021-04-09 | 浙江浙聚科技有限公司 | Soil deodorant and preparation method and application thereof |
| CN115196822A (en) * | 2022-06-28 | 2022-10-18 | 福建坤净生环保科技有限公司 | Novel disposal method of reverse osmosis concentrated solution of garbage |
| CN115197032A (en) * | 2022-06-28 | 2022-10-18 | 福建坤净生环保科技有限公司 | Novel technology process for producing organic fertilizer through garbage harmlessness |
| CN115197761A (en) * | 2022-06-28 | 2022-10-18 | 福建坤净生环保科技有限公司 | Sludge granulation heat-increasing combustion multi-functional drying-free powder binder |
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Application publication date: 20140716 |
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