CN107365043A - A kind of method of industrial sludge ecology covering - Google Patents
A kind of method of industrial sludge ecology covering Download PDFInfo
- Publication number
- CN107365043A CN107365043A CN201710537134.0A CN201710537134A CN107365043A CN 107365043 A CN107365043 A CN 107365043A CN 201710537134 A CN201710537134 A CN 201710537134A CN 107365043 A CN107365043 A CN 107365043A
- Authority
- CN
- China
- Prior art keywords
- industrial sludge
- foam
- microorganism
- microorganism formulation
- parts
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
- Treatment Of Sludge (AREA)
- Fertilizers (AREA)
Abstract
The present invention discloses a kind of method of industrial sludge ecology covering, and the first microorganism formulation and second of microorganism formulation successively first are sprayed into industrial sludge surface；9~13 parts of 2~3 parts of high-performance foaming agent, 79~92 parts of water and microorganism formulation are broken into overstable foam through high-pressure aerated foaming machine；By flusher by the foam coverage containing the first microorganism formulation and second of microorganism on industrial sludge surface.Of the invention to utilize microorganism adsorption in the first microorganism formulation to clear up the pollutant such as nitrogen, phosphorus, heavy metal and organic matter in industrial sludge, microorganism material such as secretion calcite in breeding hinders pollutant to contact in Sludge Surface formation barrier film in second of microorganism system；The overstable foam for being covered in industrial sludge surface is isolated from the outside；Flusher adjusts sprinkler height according to the stacking height of sludge, it is ensured that foam uniformly effectively coats；Laser sensor monitors the Expenditure Levels of foam in real time, automatic according to the foam height of setting and supplement foam in time.
Description
Technical field：
The present invention relates to a kind of method of industrial sludge ecology covering.
Background technology：
With the quickening of urbanization process, the discharge capacity for the treatment of of town sewage and sludge sharply increases, and industrial sludge is industrial wastewater
Sediment caused by treatment plant's purification sewage, it is typically all organic containing bacterium, worm's ovum, virus, pathogenic bacteria, heavy metal and hypertoxicity
The poisonous and harmful elements such as thing, can be to underground water, soil and air etc. if stacking everywhere or directly filling undressed sludge
Ecological environment pollutes.At present, industrial sludge need to stabilize it after producing, minimizing and recycling treatment, processing
Method has concentration method, regulation method, anaerobic digestion, evaporation and composting process etc., but because its yield is larger and is subject to processing technology
And the influence of ability, generally can not timely processing, need large area stack storage.Content of organics in undressed industrial sludge
It is high, perishable, there is strong stink, especially easily producing or cause propagated harmful levels of pathogens and viral in high temperature season flies
Worm, baneful influence is produced to periphery ecological environment, the health to the mankind brings very big threat.
The content of the invention：
The technical problems to be solved by the invention are that pollution is isolated not during being banked up for above-mentioned existing industrial sludge
A kind of foot, there is provided method for the industrial sludge ecology covering being combined using microbial biochemical effect and overstable foam covering.
The present invention adopts the following technical scheme that：A kind of method of industrial sludge ecology covering, comprises the following steps：
The first step：The first microorganism formulation and second of microorganism formulation are successively first sprayed to industrial sludge surface；
Second step：By 7~11 parts of 2~3 parts of high-performance foaming agent, 79~92 parts of water and the first microorganism formulation,
Two kinds of 3~8 parts of microorganism formulations break into overstable foam through high-pressure aerated foaming machine；
3rd step：By flusher by the foam all standing containing the first microorganism formulation and second of microorganism
On industrial sludge surface.
Further, the high-performance foaming agent is made up of following parts by weight material：1~5 part of foaming component, foam stabilizing thickening
52~85 parts of 3~17 parts of component and water.
Further, the foaming component is spread out by bis-alkoxy Diphosphonate, microprotein, alkylphosphonate, carbohydrate
Biology, starch derivatives, neopelex, fat alcohol ethoxyl compound, double alkane chain quaternary ammonium salts, ethoxylation alkane
One or more combine in base ammonium sulfate, sulfonation lauryl alcohol allyl oxyglycerol butyric acid ester sodium salt.
Further, the foam stabilizing thickener component is by ammonium stearate, xanthans, locust bean gum, carragheen, zinc sulfate, silicon
Sour sodium, chlorination di-cetyl dimethyl ammonium, styrene-acrylic emulsion, calcium lactate, calcium chloride, sorbitol anhydride laurate, hexadecanol, ten
Glycol, Polyacrylate Emulsion, Surfhope SE Cosme C 1216, ethylene glycol laurate, sucrose, sodium alginate, gelatin, hydrogenation pine
One or more combine in fragrant glyceride, PVP.
Further, the first described microorganism formulation is amonifying bacteria, nitrobacteria, denitrifying bacteria, saccharomycete, indigo plant
It is one or more in bacterium, mould, Thiobacillus ferrooxidans.
Further, second of microorganism formulation is spherical bud bacillus, carbonate mineralized bacterium, the folded ball of Pasteur's gemma bar
One or more combine in bacterium.
Further, the industrial sludge is positioned in industrial sludge warehouse, and industrial sludge warehouse top is provided with liftable
Flusher, flusher include grid, the foam transfer tube for having vertical and horizontal interval 2m on grid, and the ten of foam transfer tube
Word joint sets foam insufflation showerhead, and another end of foam transfer tube is connected with high-pressure aerated foaming machine, high-pressure aerated hair
Bubble machine is connected with foaming agent batch can, the first microorganism formulation batch can and second of microorganism formulation batch can, and the industry is dirty
Mud warehouse bottom side is provided with laser sensor.
Further, the sprinkling step is as follows：
(1) distance of flusher and industrial sludge is adjusted, by the first the microorganism group preparation configured and second
Microorganism group preparation diluent, the industrial sludge surface banked up uniformly is sprayed to by high-pressure aerated foaming machine, first sprays the first
Microorganism formulation, to spray 2~3 times, each 20~25s of duration, second of microorganism formulation is sprayed in interval after 30 minutes,
Sprinkling 1~2 time, each 10~15s of duration；
(2) by the dilution of high-performance foaming agent, water, the first microorganism group preparation and second of microorganism group preparation point
The charging aperture of high-pressure aerated foaming machine is not placed on, and by flow self-measuring device, is foamed, sprayed by setting ratio
Spill, the foam height of industrial sludge surface covering is not less than 35mm.
The present invention has the advantages that：
(1) coefficient of foaming of foaming agent prepared by the present invention is 14~17 times, get foam 1h sedimentation away from no more than
0.3mm, bleeding rate are no more than 3%；5d sedimentation away from no more than 25mm, bleeding rate be no more than 59%.Foam has high steady
Qualitative and preferable compatibility, it is capable of the covering isolation industrial sludge of long period, effectively reduces the penetrating odors such as stink
Fly away, effectively obstruct fly etc. and propagate harmful levels of pathogens, the winged insect of virus.
(2) amonifying bacteria, nitrobacteria, denitrifying bacteria, saccharomycete, cyanobacteria, mould, oxygen in antimicrobial composition preparation
The harmful components such as resolution nitrogen, phosphorus, organic matter and heavy metal can be adsorbed by changing ferrous Thiobacillus；Spherical bud bacillus, carbonate mine
Change bacterium, the folded coccus of Pasteur's gemma bar can induced synthesis calcite crystal between discrete particles, so as to of Sludge Surface
Grain is cemented together, forms surface cover layer in a short time and carries out preliminary barrier.
(3) according to the difference of industrial sludge stacking height, adjust the height of flusher, first is carried out in suitable height
The sprinkling of kind microorganism formulation, second of microorganism formulation and foam, carries out efficiently and comprehensively ecological covering.It is in addition, adjustable
Section laser sensing can monitor foam height, when foam is consumed to certain altitude, trigger high-pressure aerated foaming machine supplement automatically
Foam, until foam reaches setting height.
Brief description of the drawings：
Fig. 1 is the application schematic diagram of the method for industrial sludge of the present invention ecology covering.
Wherein：
1- industrial sludge warehouses；2- grids；3- laser sensors；The high-pressure aerated foaming machines of 4-；41- foaming agent batch cans；
The first microorganism formulation batch can of 42-；Second of microorganism formulation batch can of 43-.
Embodiment：
The present invention discloses a kind of method of industrial sludge ecology covering, comprises the following steps：
The first step：The first microorganism formulation and second of microorganism formulation are successively first sprayed to industrial sludge surface；
Second step：By 7~11 parts of 2~3 parts of high-performance foaming agent, 79~92 parts of water and the first microorganism formulation,
Two kinds of 3~8 parts of microorganism formulations break into overstable foam through high-pressure aerated foaming machine；
3rd step：By liftable flusher by the foam all standing containing two kinds of microorganism formulations in industrial sludge table
Face.
Wherein, high-performance foaming agent is made up of following parts by weight material：1~5 part of foaming component, foam stabilizing thickener component 3~
17 parts and 52~85 parts of water.
Wherein, foaming component is by bis-alkoxy Diphosphonate, microprotein, alkylphosphonate, carbohydrate derivative, starch
Derivative, neopelex, fat alcohol ethoxyl compound, double alkane chain quaternary ammonium salts, ethoxylated alkyl ammonium sulfate,
One or more combine in sulfonation lauryl alcohol allyl oxyglycerol butyric acid ester sodium salt.
Wherein, foam stabilizing thickener component is by ammonium stearate, xanthans, locust bean gum, carragheen, zinc sulfate, sodium metasilicate, chlorination
Di-cetyl dimethyl ammonium, styrene-acrylic emulsion, calcium lactate, calcium chloride, sorbitol anhydride laurate, hexadecanol, lauryl alcohol, poly- third
Olefin(e) acid ester copolymer emulsion, Surfhope SE Cosme C 1216, ethylene glycol laurate, sucrose, sodium alginate, gelatin, hydrogenated rosin glyceride,
One or more combine in PVP.
Wherein, the first microorganism formulation be amonifying bacteria, it is nitrobacteria, denitrifying bacteria, saccharomycete, cyanobacteria, mould
It is one or more in bacterium, Thiobacillus ferrooxidans.
Wherein, second of microorganism formulation is a kind of in spherical bud bacillus, carbonate mineralized bacterium, the folded coccus of Pasteur's gemma bar
Or multiple combinations form.
Wherein, industrial sludge is positioned in industrial sludge warehouse 1, and the top of industrial sludge warehouse 1 is provided with liftable sprinkling dress
Put, flusher includes grid 2, has vertical and horizontal interval 2m foam transfer tube, the cross joint of foam transfer tube on grid 2
Rotatable foam insufflation showerhead is set at head, and another end of foam transfer tube connects high-pressure aerated foaming machine 4, high-pressure aerated hair
Bubble machine 4 connects foaming agent batch can 41, the first microorganism formulation batch can 42 and second of microorganism formulation batch can 43.It is industrial dirty
The bottom side of mud warehouse 1 is provided with liftable laser sensor 3.
It is as follows wherein to spray step：
(1) distance of flusher and industrial sludge, the first the certain density microorganism group system that will have been configured are adjusted
Agent and second of microorganism group preparation diluent, the industrial sludge surface banked up uniformly is sprayed to by high-pressure aerated foaming machine 4, first
The first microorganism formulation is sprayed, is sprayed 2~3 times, each 20~25s of duration；Sprayed second after being spaced 30 minutes
Microorganism formulation, spray 1~2 time, each 10~15s of duration.
(2) by the dilution of high-performance foaming agent, water, the first microorganism group preparation and second of microorganism group preparation point
The charging aperture of high-pressure aerated foaming machine 4 is not placed on, and by flow self-measuring device, is foamed, sprayed by setting ratio
Spill, the foam height of industrial sludge surface covering is not less than 35mm.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, some improvement can also be made under the premise without departing from the principles of the invention, and these improvement also should be regarded as the present invention's
Protection domain.
Claims (8)
- A kind of 1. method of industrial sludge ecology covering, it is characterised in that：Comprise the following steps：The first step：The first microorganism formulation and second of microorganism formulation are successively first sprayed to industrial sludge surface；Second step：By 7~11 parts, second of 2~3 parts of high-performance foaming agent, 79~92 parts of water and the first microorganism formulation 3~8 parts of microorganism formulation breaks into overstable foam through high-pressure aerated foaming machine；3rd step：By flusher by the foam all standing containing the first microorganism formulation and second of microorganism in work Industry Sludge Surface.
- 2. the method for industrial sludge ecology covering as claimed in claim 1, it is characterised in that：The high-performance foaming agent is by such as Lower parts by weight material composition：52~85 parts of 1~5 part of foaming component, 3~17 parts of foam stabilizing thickener component and water.
- 3. the method for industrial sludge ecology covering as claimed in claim 2, it is characterised in that：The foaming component is by double alcoxyls Base Diphosphonate, microprotein, alkylphosphonate, carbohydrate derivative, starch derivatives, neopelex, fat Alcohol ethoxylates, double alkane chain quaternary ammonium salts, ethoxylated alkyl ammonium sulfate, sulfonation lauryl alcohol allyl oxyglycerol butyrate sodium One or more combine in salt.
- 4. the method for industrial sludge ecology covering as claimed in claim 2, it is characterised in that：The foam stabilizing thickener component is by hard Resin acid ammonium, xanthans, locust bean gum, carragheen, zinc sulfate, sodium metasilicate, chlorination di-cetyl dimethyl ammonium, styrene-acrylic emulsion, Calcium lactate, calcium chloride, sorbitol anhydride laurate, hexadecanol, lauryl alcohol, Polyacrylate Emulsion, Surfhope SE Cosme C 1216, It is one or more in ethylene glycol laurate, sucrose, sodium alginate, gelatin, hydrogenated rosin glyceride, PVP Combine.
- 5. the method for industrial sludge ecology covering as claimed in claim 1, it is characterised in that：The first described microorganism formulation For one or more in amonifying bacteria, nitrobacteria, denitrifying bacteria, saccharomycete, cyanobacteria, mould, Thiobacillus ferrooxidans.
- 6. the method for industrial sludge ecology covering as claimed in claim 1, it is characterised in that：Second of microorganism formulation Combined for one or more in spherical bud bacillus, carbonate mineralized bacterium, the folded coccus of Pasteur's gemma bar.
- 7. the method for industrial sludge ecology covering as claimed in claim 1, it is characterised in that：The industrial sludge is positioned over work In industry warehouse of sludge (1), industrial sludge warehouse (1) top is provided with liftable flusher, and flusher includes grid (2), Have vertical and horizontal interval 2m foam transfer tube on grid (2), foam insufflation showerhead be set at the cruciform joint of foam transfer tube, Another end of foam transfer tube is connected with high-pressure aerated foaming machine (4), and high-pressure aerated foaming machine (4) is connected with foaming agent batch can (41), the first microorganism formulation batch can (42) and second of microorganism formulation batch can (43), the industrial sludge warehouse (1) Bottom side is provided with laser sensor (3).
- 8. the method for industrial sludge ecology covering as claimed in claim 7, it is characterised in that：The sprinkling step is as follows：(1) distance of flusher and industrial sludge is adjusted, by the first the microorganism group preparation configured and second of micro- life Thing group preparation diluent, the industrial sludge surface banked up uniformly is sprayed to by high-pressure aerated foaming machine (4), it is micro- first to spray the first Biological agent, spray 2~3 times, each 20~25s of duration, second of microorganism formulation is sprayed in interval after 30 minutes, sprays Spill 1~2 time, each 10~15s of duration；(2) dilution of high-performance foaming agent, water, the first microorganism group preparation and second of microorganism group preparation is put respectively Put the charging aperture in high-pressure aerated foaming machine (4), and by flow self-measuring device, foamed, sprayed by setting ratio, The foam height of industrial sludge surface covering is not less than 35mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710537134.0A CN107365043B (en) | 2017-07-04 | 2017-07-04 | Method for ecological coverage of industrial sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710537134.0A CN107365043B (en) | 2017-07-04 | 2017-07-04 | Method for ecological coverage of industrial sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107365043A true CN107365043A (en) | 2017-11-21 |
| CN107365043B CN107365043B (en) | 2021-02-05 |
Family
ID=60305023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710537134.0A Active CN107365043B (en) | 2017-07-04 | 2017-07-04 | Method for ecological coverage of industrial sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107365043B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383568A (en) * | 2018-03-29 | 2018-08-10 | 深圳市贝优通新能源技术开发有限公司 | A kind of intelligent Composter that the compost effect that fermentation efficiency is high is good |
| CN109956635A (en) * | 2019-04-25 | 2019-07-02 | 湖南鑫恒环境科技有限公司 | A kind of sludge biomass processing overlay film and method |
| CN114271058A (en) * | 2021-12-29 | 2022-04-05 | 北京建工环境修复股份有限公司 | Method for passivating phosphorus in soil |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1514084A (en) * | 2003-07-14 | 2004-07-21 | 涉 张 | Method of treating faeces and urine sludge using foam carrying type microorganism and its device |
| CN102559200A (en) * | 2011-12-31 | 2012-07-11 | 乌鲁木齐中汇国豪生物科技有限公司 | Multifunctional degradable liquid mulching film containing foaming agent |
| KR101291435B1 (en) * | 2012-04-10 | 2013-07-30 | 군산대학교산학협력단 | Method for remediation of contaminated soils using multi-function surfactant foam and apparatus for remediation of the contaminated soils |
| CN103484127A (en) * | 2013-09-22 | 2014-01-01 | 清华大学 | Foam for treating contaminated soil and treatment method thereof |
| CN106269850A (en) * | 2016-09-27 | 2017-01-04 | 西南科技大学 | A kind of method utilizing carbonate mineralized bacterium thiobacillus denitrificans Combined Treatment lead ion to pollute |
-
2017
- 2017-07-04 CN CN201710537134.0A patent/CN107365043B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1514084A (en) * | 2003-07-14 | 2004-07-21 | 涉 张 | Method of treating faeces and urine sludge using foam carrying type microorganism and its device |
| CN102559200A (en) * | 2011-12-31 | 2012-07-11 | 乌鲁木齐中汇国豪生物科技有限公司 | Multifunctional degradable liquid mulching film containing foaming agent |
| KR101291435B1 (en) * | 2012-04-10 | 2013-07-30 | 군산대학교산학협력단 | Method for remediation of contaminated soils using multi-function surfactant foam and apparatus for remediation of the contaminated soils |
| CN103484127A (en) * | 2013-09-22 | 2014-01-01 | 清华大学 | Foam for treating contaminated soil and treatment method thereof |
| CN106269850A (en) * | 2016-09-27 | 2017-01-04 | 西南科技大学 | A kind of method utilizing carbonate mineralized bacterium thiobacillus denitrificans Combined Treatment lead ion to pollute |
Non-Patent Citations (1)
| Title |
|---|
| 赵茜: "微生物诱导碳酸钙沉淀（MICP）固化土壤实验研究", 《中国博士学位论文全文数据库 基础科学辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383568A (en) * | 2018-03-29 | 2018-08-10 | 深圳市贝优通新能源技术开发有限公司 | A kind of intelligent Composter that the compost effect that fermentation efficiency is high is good |
| CN109956635A (en) * | 2019-04-25 | 2019-07-02 | 湖南鑫恒环境科技有限公司 | A kind of sludge biomass processing overlay film and method |
| CN114271058A (en) * | 2021-12-29 | 2022-04-05 | 北京建工环境修复股份有限公司 | Method for passivating phosphorus in soil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107365043B (en) | 2021-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103748214B (en) | For removing the biological product of degradation resistant chemicals in water, industrial wastewater and soil and using the method for these goods | |
| Bettiol | Effectiveness of cow's milk against zucchini squash powdery mildew (Sphaerotheca fuliginea) in greenhouse conditions | |
| CN1107655C (en) | Method and composition for enhanced bioremediation of petroleum | |
| CN105149345B (en) | A kind of microorganism, plant, the method for charcoal collaboration repairing heavy metal in soil pollution | |
| CN107365043A (en) | A kind of method of industrial sludge ecology covering | |
| CA1333693C (en) | Deodorant composition for abating the odor of organic refuse | |
| JP2010539246A (en) | Method for improving water transport properties of hydrophobic surfaces | |
| CN103380772B (en) | Oil suspending agent containing SYP-1620 | |
| CN103613454A (en) | Special soil conditioner for planting strawberries and preparation method of special soil conditioner | |
| CN106659156A (en) | Surfactant concentrates for promoting soil humidification and plant growth | |
| CN102911881B (en) | Pyrethroid pesticide residue degrading bacterium, degrading microbial inoculum and application | |
| CN108935496A (en) | Long-acting mould-proof bacteria remover and preparation method thereof | |
| CN104449753A (en) | Compound soil remediator and preparation method thereof | |
| KR101561583B1 (en) | Composition to Prevent Dust from Scattering and Method to Prevent Dust from Scattering Using the Same | |
| CN106118670A (en) | Organochlorine pesticide pollution soil remediation material | |
| CN108849929A (en) | A kind of environment-friendly type Biocidal algae-killing agent | |
| CN101589719B (en) | Bactericidal composition containing bromothalonil and prochloraz | |
| CN103125506B (en) | Pyrimethanil-containing bactericide composition | |
| JPH05213686A (en) | Plant physiological activity accelerator for greenhouse culture | |
| UA121771C2 (en) | Adjuvant for agrochemicals | |
| CA2284354A1 (en) | Compositions, methods, and articles for treating footing material in a performance arena | |
| AU687850B2 (en) | Method for the rehabilitation of soil contaminated by hydrocarbons and other biodegradable substances | |
| CN112369413A (en) | Pre-emergence soil closed weeding auxiliary agent and preparation and use methods thereof | |
| CN1306874C (en) | Nuisance free seed additive for preventing vegetable sprout term disease | |
| KR101573803B1 (en) | Method for ground green |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |