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Soil conditioner suitable for soil of various contamination types and preparation method thereof

A soil conditioner and a technology for polluting soil, which is applied in the field of soil conditioner and its preparation, can solve the problems of multiple ways of soil pollution, single type of action, and difficult control, etc., and achieves suitable for large-scale industrial application, low production cost, The effect of good application prospects

Inactive Publication Date: 2017-01-18
何晓东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many ways of soil pollution, the reasons are complicated, and the control is difficult
[0004] However, most of the existing soil improvers have a single type of action and can only treat one or two types of polluted soil. When dealing with soil contaminated by multiple pollution sources, it is often necessary to add a variety of different soil improvers , which is not only inconvenient to use, but also brings challenges to the environmental bearing capacity of the soil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Weigh 50 parts of red mud, 45 parts of diatomite, 40 parts of buckwheat husk, 35 parts of wollastonite, 30 parts of sepiolite, 25 parts of limonite slag, 20 parts of shell powder, and 15 parts of potassium humate , 10 parts of EM composite microbial agent, 8 parts of urea, 8 parts of ethylenediaminetetraacetic acid, 6 parts of starch phosphate monoester, 4 parts of nano-magnesium oxide, 3 parts of calcium aluminate, 2 parts of dimethyl sulfoxide, polyvinyl alcohol - 2 parts of acid anhydride cross-linked copolymer;

[0026] (2) wollastonite and sepiolite are mixed and calcined to obtain mixed calcined powder for subsequent use;

[0027] (3) Dry red mud, diatomaceous earth, buckwheat hulls, limonite slag, shell powder, and calcium aluminate through a dryer until the water content is less than 8%. After drying, grind them with a grinder. Finish filtering through a filter net to obtain a powdery mixture with a particle size range of 20 to 30 μm;

[0028] (4) Mix the ...

Embodiment 2

[0034] (1) Weigh 55 parts of red mud, 50 parts of diatomaceous earth, 45 parts of buckwheat husk, 40 parts of wollastonite, 35 parts of sepiolite, 30 parts of limonite slag, 25 parts of shell powder, and 20 parts of potassium humate , 13 parts of EM composite microbial agent, 10 parts of urea, 9 parts of ethylenediaminetetraacetic acid, 7 parts of starch phosphate monoester, 5 parts of nano-magnesium oxide, 4 parts of calcium aluminate, 3 parts of fatty alcohol polyoxyethylene ether, starch - 4 parts of acrylic acid graft copolymer;

[0035] (2) wollastonite and sepiolite are mixed and calcined to obtain mixed calcined powder for subsequent use;

[0036] (3) Dry red mud, diatomaceous earth, buckwheat hulls, limonite slag, shell powder, and calcium aluminate through a dryer until the water content is less than 8%. After drying, grind them with a grinder. Finish filtering through a filter net to obtain a powdery mixture with a particle size range of 20 to 30 μm;

[0037] (4) M...

Embodiment 3

[0043](1) Weigh 60 parts of red mud, 55 parts of diatomaceous earth, 50 parts of buckwheat husk, 45 parts of wollastonite, 40 parts of sepiolite, 35 parts of limonite slag, 30 parts of shell powder, and 25 parts of potassium humate , 15 parts of EM composite microbial agent, 12 parts of urea, 10 parts of ethylenediaminetetraacetic acid, 8 parts of starch phosphate monoester, 6 parts of nano-magnesium oxide, 5 parts of calcium aluminate, 5 parts of hexamethyl triamine phosphate, poly 5 parts of sodium acrylate;

[0044] (2) wollastonite and sepiolite are mixed and calcined to obtain mixed calcined powder for subsequent use;

[0045] (3) Dry red mud, diatomaceous earth, buckwheat hulls, limonite slag, shell powder, and calcium aluminate through a dryer until the water content is less than 8%. After drying, grind them with a grinder. Finish filtering through a filter net to obtain a powdery mixture with a particle size range of 20 to 30 μm;

[0046] (4) Mix the mixed calcined p...

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Abstract

The invention discloses a soil conditioner suitable for soil of various contamination types and a preparation method thereof. Red mud, kieselguhr, buckwheat hulls, wollastonite, sepiolite, limonite slag, shell powder, potassium humate, an EM compound microorganism bacterial agent, urea, ethylene diamine tetraacetic acid, starch phosphate monoester, nanometer magnesia, calcium aluminate, a dispersing agent and a water-retaining agent are used as raw materials in combination with the processes of calcining, grinding, filtering, ultrasonic high-speed dispersion, microwave treatment, granulating, drying and the like, and therefore the prepared soil conditioner suitable for the soil of various contamination types can play a role in restoring the soil of various contamination types at the same time; moreover, the soil conditioner is low in production cost, can meet the requirements of the industry and has good application prospects.

Description

technical field [0001] The invention relates to the technical field of environmental remediation, in particular to a soil conditioner suitable for a variety of different polluted soils and a preparation method thereof. Background technique [0002] Soil refers to the loose surface layer on the land surface that is fertile and capable of growing plants, and its thickness is generally about 2 m. Soil not only provides mechanical support for plant growth, but also provides fertility elements such as water, fertilizer, air, and heat for plant growth and development. In recent years, due to the rapid growth of population and the rapid development of industry, solid wastes are continuously stacked and dumped on the soil surface, harmful waste water is continuously infiltrated into the soil, exhaust gas emitted by automobiles, harmful gases and floating dust in the atmosphere are constantly falling into the soil with rain. The improvement of the agricultural chemical level has cau...

Claims

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Application Information

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IPC IPC(8): C09K17/40
CPCC09K17/40
Inventor 何晓东
Owner 何晓东
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