Heavy-metal-polluted soil treatment agent, and preparation method thereof

A technology for polluting soil and heavy metals, applied in soil conditioning materials, chemical instruments and methods, organic fertilizers, etc., can solve the problems of low heavy metal removal rate, damage, soil damage, etc., achieve good heavy metal removal, and has broad application prospects. The effect of a wide range of raw materials

Inactive Publication Date: 2018-12-14
黄志优
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to improper farming, excessive use of chemical fertilizers and other reasons, the soil suffers from various damages. Heavy metal pollution is a common soil damage.
Heavy metal pollution has the characteristics of universality, concealment or latentness, irreversibility, indirect harmfulness and superficial aggregation. It can be continuously enriched in organisms through the food chain, and finally reach the top of the food chain, where it accumulates in the human body and endangers human health. , so soil heavy metal pollution is increasingly attracting people's attention. At present, people use spraying agents to treat heavy metal-contaminated soil. Although some effects can be achieved, the removal rate of heavy metals is not high, which cannot meet people's expectations.

Method used

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  • Heavy-metal-polluted soil treatment agent, and preparation method thereof
  • Heavy-metal-polluted soil treatment agent, and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0021] A medicament for treating heavy metal polluted soil, comprising the following raw materials by weight: 1.6 parts of multivitamins, 3.8 parts of grape seeds, 43 parts of bauxite, 1.8 parts of citric acid, 4 parts of Pinellia sinensis, 3 parts of EDTA salt, ethyl acetate 1.5 parts, 2.4 parts of dipotassium hydrogen phosphate and 8 parts of polyvinyl alcohol. Multivitamins include a blend of vitamin A, vitamin D, vitamin K, vitamin C, and niacin.

[0022] The preparation method of the medicament for the treatment of heavy metal polluted soil, the specific steps are as follows:

[0023] In step 1, the grape seeds are mixed with an ethanol solution with a mass fraction of 6 times the volume of which is 75%, heated and refluxed for extraction 3 times, filtered and the ethanol is recovered under reduced pressure to obtain a grape seed extract;

[0024] Step 2, adding dipotassium hydrogen phosphate, grape seed extract, EDTA salt and ethyl acetate into the reaction kettle at 84...

Embodiment 2

[0033] A medicament for treating heavy metal polluted soil, comprising the following raw materials by weight: 2.1 parts of multivitamins, 4.6 parts of grape seeds, 45.2 parts of bauxite, 2.1 parts of citric acid, 5.5 parts of Pinellia sinensis, 3.9 parts of EDTA salt, ethyl acetate 1.8 parts, 3.6 parts of dipotassium hydrogen phosphate and 9.5 parts of polyvinyl alcohol. The particle size of bauxite is 360 microns.

[0034] The preparation method of the medicament for the treatment of heavy metal polluted soil, the specific steps are as follows:

[0035] Step 1, mixing grape seeds and their volume 7 times the mass fraction of 78% ethanol solution, heating and refluxing extraction for 2 times and using 115W ultrasonic assistance, filtering and decompression recovery ethanol to obtain grape seed extract;

[0036] Step 2, adding dipotassium hydrogen phosphate, grape seed extract, EDTA salt and ethyl acetate into the reaction kettle at 84 degrees Celsius, stirring at a rotating s...

Embodiment 3

[0046] A medicament for treating heavy metal polluted soil, comprising the following raw materials by weight: 2.6 parts of multivitamins, 6.3 parts of grape seeds, 47.8 parts of bauxite, 2.5 parts of citric acid, 6.7 parts of Pinellia sinensis, 4.9 parts of EDTA salt, ethyl acetate 2.2 parts, 4.2 parts of dipotassium hydrogen phosphate and 11.4 parts of polyvinyl alcohol. Multivitamins include a blend of vitamin A, vitamin D, vitamin K, vitamin C, inositol, and niacin. The bauxite has a particle size of 440 microns.

[0047] The preparation method of the medicament for the treatment of heavy metal polluted soil, the specific steps are as follows:

[0048] In step 1, the grape seeds are mixed with an ethanol solution with a mass fraction of 7 times the volume and a mass fraction of 70%, heated and refluxed for extraction twice, filtered and the ethanol is recovered under reduced pressure to obtain a grape seed extract;

[0049]Step 2, adding dipotassium hydrogen phosphate, gr...

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Abstract

The invention discloses a heavy-metal-polluted soil treatment agent, and a preparation method thereof. The heavy-metal-polluted soil treatment agent is prepared from raw materials with the following parts by weight: 1.6-2.8 parts of multivitamins, 3.8-6.5 parts of grape seeds, 43-48.6 parts of bauxite, 1.8-2.7 parts of citric acid, 4-7 parts of pinellia ternate, 3-5.2 parts of EDTA salt, 1.5-2.3 parts of ethyl acetate, 2.4-4.5 parts of dipotassium phosphate, and 8-11.7 parts of polyvinyl alcohol. The heavy-metal-polluted soil treatment agent and the preparation method thereof provided by the invention have the advantages that different preparation methods are adopted to obtain different products, and the different products react with one another and perform synergistic effects; and a finished product prepared through the method is easy to use, and can absorb, complex, flocculate and mineralize heavy metal ions in heavy-metal-polluted soil, so that the heavy metal ions cannot be migrated, heavy metals can be effectively removed, , and wide application prospects are achieved.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a medicament for treating heavy metal polluted soil. Background technique [0002] Soil refers to a layer of loose material on the surface of the earth, which is composed of various granular minerals, organic matter, moisture, air, microorganisms, etc., and can grow plants. Soil is composed of minerals from rock weathering, animals and plants, organic matter produced by the decomposition of microbial residues, soil organisms (solid-phase substances), moisture (liquid-phase substances), air (gas-phase substances), and oxidized humus. A very important natural resource and the basis for a country's agricultural development. As the foundation of agriculture, soil is the source of basic raw materials for human survival. [0003] However, due to improper cultivation, excessive use of chemical fertilizers and other reasons, the soil has suffered various damages, and heavy metal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40
CPCC09K17/40
Inventor 黄志优
Owner 黄志优
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