CN112210384A - Soil conditioner based on contaminated soil and preparation method thereof - Google Patents
Soil conditioner based on contaminated soil and preparation method thereof Download PDFInfo
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- CN112210384A CN112210384A CN202011129041.2A CN202011129041A CN112210384A CN 112210384 A CN112210384 A CN 112210384A CN 202011129041 A CN202011129041 A CN 202011129041A CN 112210384 A CN112210384 A CN 112210384A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B13/00—Fertilisers produced by pyrogenic processes from phosphatic materials
- C05B13/02—Fertilisers produced by pyrogenic processes from phosphatic materials from rock phosphates
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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
- C05G3/80—Soil conditioners
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Pest Control & Pesticides (AREA)
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Abstract
The invention belongs to the technical field of soil remediation, and provides a soil conditioner based on polluted soil, which comprises the following components in parts by weight: 50-100 parts of plant ash, 50-100 parts of quick lime, 30-80 parts of organic fertilizer, 40-70 parts of calcium magnesium phosphate fertilizer, 20-60 parts of zeolite, 5-10 parts of composite microbial agent, 0.5-1 part of biomass charcoal and 1-2 parts of urea. The invention integrates plant ash, quicklime, organic fertilizer, calcium-magnesium-phosphorus, zeolite fertilizer, compound microbial agent, biomass charcoal and urea, has the advantages of simple material selection, low cost, good effect of restoring soil polluted by heavy metals, quick response and improvement of soil fertility.
Description
Technical Field
The invention belongs to the technical field of soil remediation, and particularly relates to a soil conditioner based on contaminated soil and a preparation method thereof.
Background
When the content of harmful substances in the soil is too high and exceeds the self-purification capacity of the soil, the quality of the soil is changed, and the soil pollution is caused. Soil pollutants are mainly divided into two categories of inorganic pollutants and organic pollutants; wherein, the inorganic pollutants mainly comprise acid, alkali, heavy metal, salts, compounds of radioactive elements cesium and strontium, compounds containing arsenic, selenium and fluorine, and the like; the organic pollutants mainly comprise organic pesticides, phenols, cyanides, petroleum, synthetic detergents, harmful microorganisms brought by municipal sewage, sludge and animal manure, and the like. The main risks of soil contamination are as follows: affecting the growth of crops and the product quality, polluting underground water and surface water, affecting the air environment quality, harming human living space and destroying the human body health.
At present, the control measures for soil mainly comprise; scientific application of pesticides and fertilizers and active soil remediation by using soil chemical improvement agents. The soil conditioner is mainly used for improving the physical, chemical and biological properties of soil to make the soil more suitable for plant growth, and the effect principle of the soil conditioner is to bond a plurality of small soil particles to form large and water-stable aggregates which are widely applied to the aspects of preventing soil erosion, reducing soil water evaporation or excessive transpiration, saving irrigation water and promoting healthy growth of plants. In the prior art, red mud and hydrated lime are mostly adopted as the modifier for soil pollution, particularly heavy metal pollution, and the defects of poor improvement effect, slow effect and the like mainly exist.
Disclosure of Invention
The invention aims to provide a soil conditioner based on polluted soil, which is low in cost, good in repairing effect and high in efficiency, so as to solve the technical problems in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a soil conditioner based on contaminated soil comprises the following components in parts by weight: 50-100 parts of plant ash, 50-100 parts of quick lime, 30-80 parts of organic fertilizer, 40-70 parts of calcium magnesium phosphate fertilizer, 20-60 parts of zeolite, 5-10 parts of composite microbial agent, 0.5-1 part of biomass charcoal and 1-2 parts of urea.
In another embodiment, a soil conditioner based on contaminated soil comprises the following components in parts by weight: 60 parts of plant ash, 70 parts of quicklime, 50 parts of organic fertilizer, 45 parts of calcium magnesium phosphate fertilizer, 35 parts of zeolite, 6 parts of compound microbial agent, 0.6 part of biomass charcoal and 1.3 parts of urea.
In another embodiment, a soil conditioner based on contaminated soil comprises the following components in parts by weight: 70 parts of plant ash, 80 parts of quicklime, 60 parts of organic fertilizer, 55 parts of calcium magnesium phosphate fertilizer, 45 parts of zeolite, 7 parts of compound microbial agent, 0.7 part of biomass charcoal and 1.5 parts of urea.
In another embodiment, a soil conditioner based on contaminated soil comprises the following components in parts by weight: 80 parts of plant ash, 90 parts of quicklime, 75 parts of organic fertilizer, 60 parts of calcium magnesium phosphate fertilizer, 50 parts of zeolite, 8 parts of compound microbial agent, 0.8 part of biomass charcoal and 1.6 parts of urea.
In another embodiment, a soil conditioner based on contaminated soil comprises the following components in parts by weight: 90 parts of plant ash, 85 parts of quicklime, 65 parts of organic fertilizer, 65 parts of calcium magnesium phosphate fertilizer, 55 parts of zeolite, 9 parts of compound microbial agent, 0.9 part of biomass charcoal and 1.8 parts of urea.
The invention also provides a preparation method of the soil conditioner based on the contaminated soil, which comprises the following steps:
(1) mixing and drying zeolite, plant ash, quicklime and biomass charcoal;
(2) grinding to obtain a powdery mixture;
(3) adding a calcium magnesium phosphate fertilizer into the powdery mixture prepared in the step (2);
(4) adding compound microbial agent and urea to obtain the finished product.
The effects of the components in the invention are as follows:
the main component of the plant ash is potassium carbonate (K2CO3), and the relative molecular mass is 138. The plant ash fertilizer is the ash generated by burning plants, so that the plant ash is a mineral element contained in the plants, and the plant ash is almost contained in the plant ash. The most potassium element is contained, generally 6-12% of potassium is contained, more than 90% of potassium is water-soluble and exists in the form of carbonate; secondly, phosphorus generally contains 1.5-3 percent; also contains calcium, magnesium, silicon, sulfur, and trace elements such as ferrum, manganese, copper, zinc, boron, molybdenum, etc. The method is used for improving the acidity and alkalinity of the polluted soil and weakening the heavy metal pollution in the polluted soil;
the organic fertilizer is mainly derived from plants and/or animals, and is a carbon-containing material which is applied to soil to provide plant nutrition as a main function. Is prepared from biological substances, animal and plant wastes and plant residues, eliminates toxic and harmful substances in the biological substances, and is rich in a large amount of beneficial substances, including: various organic acids, peptides and rich nutrient elements including nitrogen, phosphorus and potassium. Can increase and renew soil organic matters, promote microbial propagation, and improve the physical and chemical properties and biological activity of soil;
the calcium magnesium phosphate fertilizer is also called fused magnesium phosphate fertilizer, and is aluminosilicate vitreous body containing phosphate radical (PO 43-). The main components comprise Ca3(PO4)2, CaSiO3 and MgSiO 3. Is a multi-element fertilizer, the water solution is alkaline, and can improve acid soil;
the zeolite has ion exchange property, adsorption separation property, catalysis property, stability, chemical reactivity, reversible dehydration property, conductivity and the like, is easy to absorb and utilize, is used for eliminating or weakening heavy metal pollution in soil, and is combined with plant ash and organic fertilizer to improve the soil fertility;
the compound microbial agent mainly comprises azotobacter, phosphate solubilizing bacteria, potassium solubilizing bacteria and the like, and is mainly used for improving the microbial community structure of the polluted soil and improving the soil fertility;
the biomass charcoal is a porous solid particulate matter which is highly aromatic and rich in carbon and is generated by pyrolysis of carbon-rich biomass under the condition of no oxygen or lack of oxygen. It contains a great deal of carbon and plant nutrient substances, has rich pore structures, larger specific surface area and more oxygen-containing active groups on the surface, and is a multifunctional material. The carbon nitrogen fertilizer can improve soil, increase fertility, adsorb heavy metals and organic pollutants in soil or sewage, has a good fixing effect on carbon nitrogen, and can reduce emission of greenhouse gases such as CO2, N2O and CH4 when applied to the soil;
urea is an organic compound consisting of carbon, nitrogen, oxygen and hydrogen, is a white crystal, is the highest nitrogen fertilizer at present, and is used as a neutral fertilizer, and the urea is suitable for various soils and plants.
Compared with the prior art, the invention has the following beneficial effects: the invention has the advantages of simple material selection, low cost, good and quick effect on the remediation of the soil polluted by heavy metals, and simultaneously improves the fertility of the soil.
Detailed Description
In order that those skilled in the art will more clearly understand and appreciate the present invention, the following detailed description of the present invention is provided in conjunction with the examples. It should be understood that the following specific embodiments are only used for explaining the present invention, and it is convenient to understand that the technical solutions provided by the present invention are not limited to the technical solutions provided by the following embodiments, and the technical solutions provided by the embodiments should not limit the protection scope of the present invention.
Example 1
The embodiment provides a soil conditioner based on polluted soil, which comprises the following components in parts by weight: 60 parts of plant ash, 70 parts of quicklime, 50 parts of organic fertilizer, 45 parts of calcium magnesium phosphate fertilizer, 35 parts of zeolite, 6 parts of compound microbial agent, 0.6 part of biomass charcoal and 1.3 parts of urea.
The preparation method of the soil conditioner based on the polluted soil comprises the following steps: (1) mixing 35 parts of zeolite, 60 parts of plant ash, 70 parts of quicklime and 0.6 part of biomass charcoal, and drying; (2) grinding to obtain a powdery mixture; (3) adding 45 parts of calcium magnesium phosphate fertilizer into the powdery mixture prepared in the step (2); (4) adding 6 parts of compound microbial agent and 1.3 parts of urea to obtain a finished product.
Example 2
The embodiment provides a soil conditioner based on polluted soil, which comprises the following components in parts by weight: 70 parts of plant ash, 80 parts of quicklime, 60 parts of organic fertilizer, 55 parts of calcium magnesium phosphate fertilizer, 45 parts of zeolite, 7 parts of compound microbial agent, 0.7 part of biomass charcoal and 1.5 parts of urea.
The preparation method of the soil conditioner based on the polluted soil comprises the following steps: (1) mixing and drying 45 parts of zeolite, 70 parts of plant ash, 80 parts of quicklime and 0.7 part of biomass charcoal; (2) grinding to obtain a powdery mixture; (3) adding 55 parts of calcium magnesium phosphate fertilizer into the powdery mixture prepared in the step (2); (4) adding 7 parts of compound microbial agent and 1.5 parts of urea to obtain a finished product.
Example 3
The embodiment provides a soil conditioner based on polluted soil, which comprises the following components in parts by weight: 80 parts of plant ash, 90 parts of quicklime, 75 parts of organic fertilizer, 60 parts of calcium magnesium phosphate fertilizer, 50 parts of zeolite, 8 parts of compound microbial agent, 0.8 part of biomass charcoal and 1.6 parts of urea.
The preparation method of the soil conditioner based on the polluted soil comprises the following steps: (1) mixing and drying 50 parts of zeolite, 80 parts of plant ash, 90 parts of quicklime and 0.8 part of biomass charcoal; (2) grinding to obtain a powdery mixture; (3) adding 60 parts of calcium magnesium phosphate fertilizer into the powdery mixture prepared in the step (2); (4) adding 8 parts of compound microbial agent and 1.6 parts of urea to obtain a finished product.
Example 4
The embodiment provides a soil conditioner based on polluted soil, which comprises the following components in parts by weight: 90 parts of plant ash, 85 parts of quicklime, 65 parts of organic fertilizer, 65 parts of calcium magnesium phosphate fertilizer, 55 parts of zeolite, 9 parts of compound microbial agent, 0.9 part of biomass charcoal and 1.8 parts of urea.
The preparation method of the soil conditioner based on the polluted soil comprises the following steps: (1) mixing 50 parts of zeolite, 90 parts of plant ash, 85 parts of quicklime and 0.9 part of biomass charcoal, and drying; (2) grinding to obtain a powdery mixture; (3) adding 65 parts of calcium magnesium phosphate fertilizer into the powdery mixture prepared in the step (2); (4) adding 9 parts of compound microbial agent and 1.8 parts of urea to obtain a finished product.
The above description is the preferred embodiment of the present invention. It should be noted that, the skilled in the art can make several modifications without departing from the design principle and technical scheme of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (6)
1. A soil conditioner based on contaminated soil is characterized by comprising the following components in parts by weight: 50-100 parts of plant ash, 50-100 parts of quick lime, 30-80 parts of organic fertilizer, 40-70 parts of calcium magnesium phosphate fertilizer, 20-60 parts of zeolite, 5-10 parts of composite microbial agent, 0.5-1 part of biomass charcoal and 1-2 parts of urea.
2. A contaminated soil based soil amendment according to claim 1, characterized in that: the paint comprises the following components in parts by weight: 60 parts of plant ash, 70 parts of quicklime, 50 parts of organic fertilizer, 45 parts of calcium magnesium phosphate fertilizer, 35 parts of zeolite, 6 parts of compound microbial agent, 0.6 part of biomass charcoal and 1.3 parts of urea.
3. A contaminated soil based soil amendment according to claim 2, characterized in that: 70 parts of plant ash, 80 parts of quicklime, 60 parts of organic fertilizer, 55 parts of calcium magnesium phosphate fertilizer, 45 parts of zeolite, 7 parts of compound microbial agent, 0.7 part of biomass charcoal and 1.5 parts of urea.
4. A contaminated soil based soil amendment according to claim 3, characterized in that: 80 parts of plant ash, 90 parts of quicklime, 75 parts of organic fertilizer, 60 parts of calcium magnesium phosphate fertilizer, 50 parts of zeolite, 8 parts of compound microbial agent, 0.8 part of biomass charcoal and 1.6 parts of urea.
5. A contaminated soil based soil amendment according to claim 4, characterized in that: 90 parts of plant ash, 85 parts of quicklime, 65 parts of organic fertilizer, 65 parts of calcium magnesium phosphate fertilizer, 55 parts of zeolite, 9 parts of compound microbial agent, 0.9 part of biomass charcoal and 1.8 parts of urea.
6. The method for preparing a soil conditioner based on contaminated soil according to any one of claims 1 to 5, comprising the steps of:
(1) mixing and drying zeolite, plant ash, quicklime and biomass charcoal;
(2) grinding to obtain a powdery mixture;
(3) adding a calcium magnesium phosphate fertilizer into the powdery mixture prepared in the step (2);
(4) adding compound microbial agent and urea to obtain the finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011129041.2A CN112210384A (en) | 2020-10-20 | 2020-10-20 | Soil conditioner based on contaminated soil and preparation method thereof |
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| CN202011129041.2A CN112210384A (en) | 2020-10-20 | 2020-10-20 | Soil conditioner based on contaminated soil and preparation method thereof |
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| CN202011129041.2A Pending CN112210384A (en) | 2020-10-20 | 2020-10-20 | Soil conditioner based on contaminated soil and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112980453A (en) * | 2021-02-27 | 2021-06-18 | 广州绿邦环境技术有限公司 | Soil restoration and improvement agent and production process |
| CN113214005A (en) * | 2021-05-11 | 2021-08-06 | 湖北倍得农业科技有限公司 | Composite soil conditioner and preparation method thereof |
| CN114591749A (en) * | 2022-03-21 | 2022-06-07 | 冯垚 | Iron tailing treating agent and application thereof |
| CN114717008A (en) * | 2022-04-29 | 2022-07-08 | 山东泽涛复合材料有限公司 | Novel material synthesized by liquid mulching film and modified red mud |
| CN114736081A (en) * | 2022-04-28 | 2022-07-12 | 河南比赛尔农业科技有限公司 | Soil remediation treating agent and preparation method thereof |
| CN114874046A (en) * | 2022-04-25 | 2022-08-09 | 顺昌农废宝生物技术有限公司 | Production method of artificial soil |
| CN114907862A (en) * | 2022-06-28 | 2022-08-16 | 扬州慕月环保科技有限公司 | Soil pollution repairing agent |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104046361A (en) * | 2014-06-20 | 2014-09-17 | 四川大学 | Composite heavy metal polluted soil conditioner as well as application and application method thereof |
-
2020
- 2020-10-20 CN CN202011129041.2A patent/CN112210384A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104046361A (en) * | 2014-06-20 | 2014-09-17 | 四川大学 | Composite heavy metal polluted soil conditioner as well as application and application method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112980453A (en) * | 2021-02-27 | 2021-06-18 | 广州绿邦环境技术有限公司 | Soil restoration and improvement agent and production process |
| CN113214005A (en) * | 2021-05-11 | 2021-08-06 | 湖北倍得农业科技有限公司 | Composite soil conditioner and preparation method thereof |
| CN114591749A (en) * | 2022-03-21 | 2022-06-07 | 冯垚 | Iron tailing treating agent and application thereof |
| CN114874046A (en) * | 2022-04-25 | 2022-08-09 | 顺昌农废宝生物技术有限公司 | Production method of artificial soil |
| CN114736081A (en) * | 2022-04-28 | 2022-07-12 | 河南比赛尔农业科技有限公司 | Soil remediation treating agent and preparation method thereof |
| CN114717008A (en) * | 2022-04-29 | 2022-07-08 | 山东泽涛复合材料有限公司 | Novel material synthesized by liquid mulching film and modified red mud |
| CN114907862A (en) * | 2022-06-28 | 2022-08-16 | 扬州慕月环保科技有限公司 | Soil pollution repairing agent |
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