CN109678590A - A kind of soil conditioner - Google Patents
A kind of soil conditioner Download PDFInfo
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- CN109678590A CN109678590A CN201811415751.4A CN201811415751A CN109678590A CN 109678590 A CN109678590 A CN 109678590A CN 201811415751 A CN201811415751 A CN 201811415751A CN 109678590 A CN109678590 A CN 109678590A
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- soil conditioner
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- stalk
- powder
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- 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
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Soil Sciences (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of soil conditioners, are made of the component of following parts by weight: 30-40 parts of flyash, 20-30 parts of dewatered sludge, 30-50 parts of gangue, 10-15 parts of wood powder, 15-20 parts of stalk, 10-15 parts of bagasse, 8-12 parts of peanut shell, 30-40 parts of bentonite, 5-10 parts of quick lime, 15-20 parts of sheep dung, 3-5 parts of composite microbe fertilizer microbial inoculum, 10-18 parts of urea, 15-20 parts of biogas residue, 30-40 parts of water.A kind of soil conditioner of the present invention, first, it can promote plant establishment, improve the resistance of plant, plant is promoted to absorb the minerals contained in soil conditioner, to promote the growth of plant, secondly, the effect for gathering around the temperature of have some improvement soil texture and increase soil, increases the function of soil fertility, to make the function for the soil conditioner made more comprehensive in conjunction with possessed by itself, to improve soil conditioner effect, and cost is relatively low, and preparation process is fairly simple, brings better prospect of the application.
Description
Technical field
The present invention relates to soil conditioner field, in particular to a kind of soil conditioner.
Background technique
Soil conditioner be by agricultural water-loss reducer and rich in organic matter, humic acid natural peat or other organic matters based on
Raw material is wanted to be aided with the product that bioactive ingredients and nutrient composition are process by scientific technology, soil conditioner has pole
Its significant " water conservation, is breathed freely at getting fat " three big soil conditioning performance, is liked, but science and technology is not by broad masses of the people
Disconnected development, environment are ceaselessly changing, and requirement of the people for soil conditioner is higher and higher, and existing soil is caused to adjust
Agent can not meet the requirement of people；
There are certain drawbacks in existing soil conditioner, existing soil conditioner is usually by some mineral when in use
Matter is formed by high-temperature calcination, although capableing of the soil that changes of high degree, the time changed is longer, short time interplantation
Object can not absorb these minerals, be unsatisfactory for the requirement of people, secondly, the type of existing soil conditioner compared with
It is more, improve soil and needs to add a variety of different soil conditioners, it is more troublesome, for this purpose, it is proposed that a kind of soil conditioner.
Summary of the invention
The main purpose of the present invention is to provide a kind of soil conditioners, can effectively solve the problems in background technique.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of soil conditioner is made of the component of following parts by weight: 30-40 parts of flyash, 20-30 parts of dewatered sludge,
30-50 parts of gangue, 10-15 parts of wood powder, 15-20 parts of stalk, 10-15 parts of bagasse, 8-12 parts of peanut shell, bentonite 30-40
Part, 5-10 parts of quick lime, 15-20 parts of sheep dung, 3-5 parts of composite microbe fertilizer microbial inoculum, 10-18 parts of urea, 15-20 parts of biogas residue, water
30-40 parts.
Preferably, it is made of the component of following parts by weight: 32-38 parts of flyash, 23-28 parts of dewatered sludge, gangue 35-
45 parts, 11-14 parts of wood powder, 17-19 parts of stalk, 11-13 parts of bagasse, 9-11 parts of peanut shell, 33-37 parts of bentonite, quick lime
6-9 parts, 16-18 parts of sheep dung, 3-4 parts of composite microbe fertilizer microbial inoculum, 13-16 parts of urea, 16-18 parts of biogas residue, 32-38 parts of water.
Preferably, it is made of the component of following parts by weight: 35 parts of flyash, 25 parts of dewatered sludge, 40 parts of gangue, wood powder
12 parts, 18 parts of stalk, 12 parts of bagasse, 10 parts of peanut shell, 35 parts of bentonite, 8 parts of quick lime, 17 parts of sheep dung, complex microorganism
4 parts of fertile microbial inoculum, 15 parts of urea, 17 parts of biogas residue, 35 parts of water.
Preferably, the dewatered sludge chooses the sanitary wastewater sludge after precipitating in Sewage Disposal, and the stalk is chosen
Soybean stalk and corn stover, the water use pure water or mineral water.
Preferably, the soil conditioner preparation the following steps are included:
1., dewatered sludge, gangue, flyash, biogas residue, sheep dung and bentonite are successively sent into pulverizer carry out powder
It is broken, then smashed material is sent into mixing machine and is uniformly mixed, then high-temperature calcination is carried out to mixed powdered rubber, it obtains
Mixture；
2., be completely dissolved in water by stalk, peanut shell and bagasse powder breakdown mill powdering, then by powder, obtain
Mixed solution；
3., mixture is added in mixed solution, add composite microbe fertilizer microbial inoculum after mixing evenly, then use plastics
Cloth covers, and ferments；
4., object after fermentation is sent into dryer and is dried, the article after drying is then ground into powdery, so
After packed, obtain soil conditioner；
Preferably, the step 1. in, dewatered sludge, flyash, biogas residue and bentonite in powder are broken to 10-20 mesh, gangue
It is crushed to 1-3 ㎝, sheep dung is crushed to 50-60 mesh.
Preferably, the step 2. in, when dissolution, needs to carry out heating stirring to solution, is warming up to 30-50 DEG C, stirring
20-30 minutes, stirring rate 40-50r/min.
Preferably, 3. the middle time fermented is 18-25 days to the step, and the temperature of fermentation is 35-45 DEG C, is needed during fermentation
Will be to the object flange of fermentation, and need to add plant growth regulator in fermentation process.
Preferably, the step 4. in drying after object in moisture be 3-8%, the soil conditioner of powdery is after grinding
100-120 mesh.
Compared with prior art, the invention has the following beneficial effects:
1, it is perfectly combined with minerals after crushing biogas residue and sheep dung, and is added to material element, so that making
Soil conditioner have promote plant establishment effect, improve the resistance of plant, and the configuration of soil conditioner
Plant growth regulator is added in journey, plant can be promoted to absorb the minerals contained in soil conditioner, to promote
Into the growth of plant；
2, it is incorporated in gangue and flyash after crushing the substances such as stalk, peanut shell and bagasse, so that soil
Regulator is more fluffy, gathers around the effect of the temperature of have some improvement soil texture and increase soil, is had in conjunction with itself
Increase soil fertility function, to make the function for the soil conditioner made more comprehensive, to improve soil
Earth regulator effect；
3, using dewatered sludge and flyash as the primary raw material of production soil conditioner, sludge and flyash are more normal
See, it is at low cost, and the ion and ingredient of the various promotion plant growths contained in sludge and flyash, can preferably it promote
Plant growth also facilitates people to handle dewatered sludge and flyash, and the preparation process of entire soil conditioner is fairly simple,
And the soil conditioner using effect of preparation is more preferable, meets the requirement of modern people, it is more practical.
Detailed description of the invention
Fig. 1 is a kind of preparation method overall structure flow chart of soil conditioner of the present invention.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Embodiment 1
A kind of soil conditioner, which is characterized in that be made of the component of following parts by weight: 32 parts of flyash, dewatered sludge
23 parts, 35 parts of gangue, 12 parts of wood powder, 18 parts of stalk, 11 parts of bagasse, 10 parts of peanut shell, 35 parts of bentonite, 7 parts of quick lime,
16 parts of sheep dung, 4 parts of composite microbe fertilizer microbial inoculum, 15 parts of urea, 16 parts of biogas residue, 35 parts of water.
Dewatered sludge chooses the sanitary wastewater sludge after precipitating in Sewage Disposal, and stalk chooses soybean stalk and corn stalk
Stalk, water use pure water or mineral water.
The preparation of soil conditioner the following steps are included:
1., dewatered sludge, gangue, flyash, biogas residue, sheep dung and bentonite are successively sent into pulverizer carry out powder
It is broken, then smashed material is sent into mixing machine and is uniformly mixed, then high-temperature calcination is carried out to mixed powdered rubber, it obtains
Mixture, dewatered sludge, flyash, biogas residue and bentonite in powder are broken to 20 mesh, and gangue is crushed to 2 ㎝, and sheep dung is crushed to 60 mesh；
2., be completely dissolved in water by stalk, peanut shell and bagasse powder breakdown mill powdering, then by powder, obtain
Mixed solution；It needs to carry out heating stirring to solution when dissolution, is warming up to 35 DEG C, stir 30 minutes, stirring rate 40r/
min；
3., mixture is added in mixed solution, add composite microbe fertilizer microbial inoculum after mixing evenly, then use plastics
Cloth covers, and ferments, and the time of fermentation is 20 days, and the temperature of fermentation is 40 DEG C, needs to turn over the object of fermentation during fermentation
Side, and need to add plant growth regulator in fermentation process；
4., object after fermentation is sent into dryer and is dried, the article after drying is then ground into powdery, so
After packed, obtain soil conditioner, in the object after drying moisture be 5%, after grinding the soil conditioner of powdery be 100
Mesh.
Embodiment 2
A kind of soil conditioner is made of the component of following parts by weight: 35 parts of flyash, 25 parts of dewatered sludge, gangue
40 parts, it is 12 parts of wood powder, 18 parts of stalk, 12 parts of bagasse, 10 parts of peanut shell, 35 parts of bentonite, 8 parts of quick lime, 17 parts of sheep dung, multiple
Close 4 parts of microorganism fertilizer microbial inoculum, 15 parts of urea, 17 parts of biogas residue, 35 parts of water.
Dewatered sludge chooses the sanitary wastewater sludge after precipitating in Sewage Disposal, and stalk chooses soybean stalk and corn stalk
Stalk, water use pure water or mineral water.
The preparation of soil conditioner the following steps are included:
1., dewatered sludge, gangue, flyash, biogas residue, sheep dung and bentonite are successively sent into pulverizer carry out powder
It is broken, then smashed material is sent into mixing machine and is uniformly mixed, then high-temperature calcination is carried out to mixed powdered rubber, it obtains
Mixture, dewatered sludge, flyash, biogas residue and bentonite in powder are broken to 20 mesh, and gangue is crushed to 2 ㎝, and sheep dung is crushed to 60 mesh；
2., be completely dissolved in water by stalk, peanut shell and bagasse powder breakdown mill powdering, then by powder, obtain
Mixed solution；It needs to carry out heating stirring to solution when dissolution, is warming up to 35 DEG C, stir 30 minutes, stirring rate 40r/
min；
3., mixture is added in mixed solution, add composite microbe fertilizer microbial inoculum after mixing evenly, then use plastics
Cloth covers, and ferments, and the time of fermentation is 20 days, and the temperature of fermentation is 40 DEG C, needs to turn over the object of fermentation during fermentation
Side, and need to add plant growth regulator in fermentation process；
4., object after fermentation is sent into dryer and is dried, the article after drying is then ground into powdery, so
After packed, obtain soil conditioner, in the object after drying moisture be 5%, after grinding the soil conditioner of powdery be 100
Mesh.
Embodiment 3
A kind of soil conditioner is made of the component of following parts by weight: 38 parts of flyash, 26 parts of dewatered sludge, gangue
42 parts, it is 13 parts of wood powder, 18 parts of stalk, 11 parts of bagasse, 10 parts of peanut shell, 35 parts of bentonite, 7 parts of quick lime, 18 parts of sheep dung, multiple
Close 4 parts of microorganism fertilizer microbial inoculum, 15 parts of urea, 16 parts of biogas residue, 35 parts of water.
Dewatered sludge chooses the sanitary wastewater sludge after precipitating in Sewage Disposal, and stalk chooses soybean stalk and corn stalk
Stalk, water use pure water or mineral water.
The preparation of soil conditioner the following steps are included:
1., dewatered sludge, gangue, flyash, biogas residue, sheep dung and bentonite are successively sent into pulverizer carry out powder
It is broken, then smashed material is sent into mixing machine and is uniformly mixed, then high-temperature calcination is carried out to mixed powdered rubber, it obtains
Mixture, dewatered sludge, flyash, biogas residue and bentonite in powder are broken to 20 mesh, and gangue is crushed to 2 ㎝, and sheep dung is crushed to 60 mesh；
2., be completely dissolved in water by stalk, peanut shell and bagasse powder breakdown mill powdering, then by powder, obtain
Mixed solution；It needs to carry out heating stirring to solution when dissolution, is warming up to 35 DEG C, stir 30 minutes, stirring rate 40r/
min；
3., mixture is added in mixed solution, add composite microbe fertilizer microbial inoculum after mixing evenly, then use plastics
Cloth covers, and ferments, and the time of fermentation is 20 days, and the temperature of fermentation is 40 DEG C, needs to turn over the object of fermentation during fermentation
Side, and need to add plant growth regulator in fermentation process；
4., object after fermentation is sent into dryer and is dried, the article after drying is then ground into powdery, so
After packed, obtain soil conditioner, in the object after drying moisture be 5%, after grinding the soil conditioner of powdery be 100
Mesh.
Table 1 is under identical planting conditions, and after the growing tomatoes inside greenhouse to be divided into No. four ground, every piece western red
10 ㎡ of persimmon planting site applies soil conditioner corresponding to embodiment 1-3 on No. 1-3 ground planting site, and No. four are not added soil
Regulator plants tomato, and the tomato production obtained after mature is as a result as follows:
| Growing tomatoes plot | Tomato production (kg) |
| No. 1 ground | 102.6 |
| No. 2 ground | 114.7 |
| No. 3 ground | 108.6 |
| No. 4 ground | 83.6 |
By 1 experimental data of table it is found that soil conditioner of the present invention, has the effect for promoting plant establishment, plant is improved
Resistance, plant can be promoted to absorb the minerals contained in soil conditioner, to promote the growth of plant, increased
Add the yield of crops, separately embodiment 2 is optimal selection as shown in Table 1.
The basic principles, main features and the advantages of the invention have been shown and described.The technical staff of the industry
It should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe the present invention
Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variation and
Improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent
Object defines.
Claims (9)
1. a kind of soil conditioner, which is characterized in that be made of the component of following parts by weight: 30-40 parts of flyash, dewatered sludge
20-30 parts, 30-50 parts of gangue, 10-15 parts of wood powder, 15-20 parts of stalk, 10-15 parts of bagasse, 8-12 parts of peanut shell, swelling
30-40 parts native, 5-10 parts of quick lime, 15-20 parts of sheep dung, 3-5 parts of composite microbe fertilizer microbial inoculum, 10-18 parts of urea, biogas residue 15-
20 parts, 30-40 parts of water.
2. a kind of soil conditioner according to claim 1, which is characterized in that be made of the component of following parts by weight: powder
32-38 parts of coal ash, 23-28 parts of dewatered sludge, 35-45 parts of gangue, 11-14 parts of wood powder, 17-19 parts of stalk, bagasse 11-13
Part, 9-11 parts of peanut shell, 33-37 parts of bentonite, 6-9 parts of quick lime, 16-18 parts of sheep dung, 3-4 parts of composite microbe fertilizer microbial inoculum,
13-16 parts of urea, 16-18 parts of biogas residue, 32-38 parts of water.
3. a kind of soil conditioner according to claim 1, which is characterized in that be made of the component of following parts by weight: powder
35 parts of coal ash, 25 parts of dewatered sludge, 40 parts of gangue, 12 parts of wood powder, 18 parts of stalk, 12 parts of bagasse, 10 parts of peanut shell, swelling
Native 35 parts, 8 parts of quick lime, 17 parts of sheep dung, 4 parts of composite microbe fertilizer microbial inoculum, 15 parts of urea, 17 parts of biogas residue, 35 parts of water.
4. a kind of soil conditioner according to claim 1 to 3, which is characterized in that the dewatered sludge chooses sewage
Sanitary wastewater sludge after precipitating in treating stations, the stalk choose soybean stalk and corn stover, and the water uses pure water
Or mineral water.
5. a kind of preparation method of soil conditioner according to claim 1 to 4, which is characterized in that the soil tune
Save agent preparation the following steps are included:
1., dewatered sludge, gangue, flyash, biogas residue, sheep dung and bentonite are successively sent into pulverizer crush, then
Smashed material is sent into mixing machine to be uniformly mixed, then high-temperature calcination is carried out to mixed powdered rubber, is mixed
Object；
2., be completely dissolved in water by stalk, peanut shell and bagasse powder breakdown mill powdering, then by powder, mixed
Solution；
3., mixture is added in mixed solution, composite microbe fertilizer microbial inoculum is added after mixing evenly, then with plastic cloth lid
Firmly, it ferments；
4., object after fermentation is sent into dryer and is dried, the article after drying is then ground into powdery, then into
Row packaging, obtains soil conditioner；
6. a kind of preparation method of soil conditioner according to claim 5, it is characterised in that: the step 1. in, take off
Sewage sludge, flyash, biogas residue and bentonite in powder are broken to 10-20 mesh, and gangue is crushed to 1-3 ㎝, and sheep dung is crushed to 50-60 mesh.
7. a kind of preparation method of soil conditioner according to claim 5, it is characterised in that: the step 2. in, it is molten
It needs to carry out heating stirring to solution when solution, is warming up to 30-50 DEG C, stir 20-30 minutes, stirring rate 40-50r/min.
8. a kind of preparation method of soil conditioner according to claim 5, it is characterised in that: the step 3. middle fermentation
Time be 18-25 days, the temperature of fermentation is 35-45 DEG C, and the object flange to fermentation, and fermentation process are needed during fermentation
In need to add plant growth regulator.
9. a kind of preparation method of soil conditioner according to claim 5, it is characterised in that: the step 4. middle drying
Moisture is 3-8% in object afterwards, and the soil conditioner of powdery is 100-120 mesh after grinding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811415751.4A CN109678590A (en) | 2018-11-26 | 2018-11-26 | A kind of soil conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811415751.4A CN109678590A (en) | 2018-11-26 | 2018-11-26 | A kind of soil conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109678590A true CN109678590A (en) | 2019-04-26 |
Family
ID=66185580
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811415751.4A Pending CN109678590A (en) | 2018-11-26 | 2018-11-26 | A kind of soil conditioner |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111363555A (en) * | 2020-03-17 | 2020-07-03 | 济宁学院 | Improver and method for improving agricultural soil by using coal-based solid waste |
| CN112940733A (en) * | 2021-03-26 | 2021-06-11 | 山东萱源科学工程产业技术研究院有限公司 | Method for preparing soil conditioner from multi-source coal-based solid waste |
| CN113416551A (en) * | 2021-05-28 | 2021-09-21 | 浙江问源环保科技股份有限公司 | Heavy metal contaminated soil composite repairing agent produced by using agricultural and sewage transport and maintenance wastes and preparation method thereof |
| CN114561217A (en) * | 2022-02-28 | 2022-05-31 | 宁夏宏德环境科技有限公司 | Fly ash soil conditioner and application thereof |
-
2018
- 2018-11-26 CN CN201811415751.4A patent/CN109678590A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111363555A (en) * | 2020-03-17 | 2020-07-03 | 济宁学院 | Improver and method for improving agricultural soil by using coal-based solid waste |
| CN112940733A (en) * | 2021-03-26 | 2021-06-11 | 山东萱源科学工程产业技术研究院有限公司 | Method for preparing soil conditioner from multi-source coal-based solid waste |
| CN113416551A (en) * | 2021-05-28 | 2021-09-21 | 浙江问源环保科技股份有限公司 | Heavy metal contaminated soil composite repairing agent produced by using agricultural and sewage transport and maintenance wastes and preparation method thereof |
| CN114561217A (en) * | 2022-02-28 | 2022-05-31 | 宁夏宏德环境科技有限公司 | Fly ash soil conditioner and application thereof |
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