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Composition used for treating soil arsenic pollution, and application method thereof

A composition and technology for arsenic pollution, applied in the field of compositions for treating arsenic pollution in soil, can solve problems such as inconvenient use of iron salt solution, impact of physical and chemical properties on crop growth, etc., to improve stabilization efficiency, promote crop growth, preparation method simple effect

Inactive Publication Date: 2012-06-27
盛世绍普(天津)环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the iron salt solution is not convenient enough to use, and it will also cause adverse effects on the physical and chemical properties of farmland soil and the growth of crops.

Method used

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  • Composition used for treating soil arsenic pollution, and application method thereof
  • Composition used for treating soil arsenic pollution, and application method thereof
  • Composition used for treating soil arsenic pollution, and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Example 1 Preparation of the composition of the present invention

[0054] Composition 1

[0055]

[0056] The components are crushed, mixed uniformly, and passed through an 80-mesh sieve to prepare the composition 1 of the present invention.

[0057] Composition 2

[0058]

[0059]

[0060] The components are crushed, mixed uniformly, and passed through an 80-mesh sieve to obtain the composition 2 of the present invention.

[0061] Composition 3

[0062]

[0063] The components are crushed, mixed uniformly, and passed through an 80-mesh sieve to obtain the composition 3 of the present invention.

[0064] Composition 4

[0065]

[0066] The components are crushed, mixed uniformly, and passed through a 100-mesh sieve to obtain composition 4 of the present invention.

[0067] Composition 5

[0068]

[0069]

[0070] The components are crushed, mixed uniformly, and passed through an 80-mesh sieve to obtain the composition 5 of the present invention.

Embodiment 2

[0072] I. Changes in leaching amount of soil arsenic before and after treatment with the composition of the present invention

[0073] a) The source and treatment of experimental soil

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PUM

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Abstract

The invention belongs to the field of soil arsenic pollution treatment. Specifically, the invention relates to a composition used for treating soil arsenic pollution, and an application method thereof. The composition provided by the invention comprises components of, by weight: 20-30% of a pH regulating agent, 10-40% of aluminum oxide, 10-40% of elementary iron, and 15-30% of metal sulfide. The prepared composition is added to arsenic-polluted soil with a dosage of 0.5-4% by weight. With the composition provided by the invention, arsenic in soil can be fixed, and bioavailability of arsenic in soil is substantially reduced. Therefore, arsenic absorption of crops can be inhibited, and crop growth can be promoted. The composition is advantaged in rich raw material, low price, simple preparation method, and simple application method. With the method, large-scale production can easily be realized. The method is suitable for large-range popularization.

Description

Technical field [0001] The present invention belongs to the field of soil arsenic pollution treatment. Specifically, the present invention relates to a composition for treating soil arsenic pollution and a method of use thereof. Background technique [0002] Arsenic compounds have carcinogenic, teratogenic, and mutagenic properties. Arsenic poisoning is a skin-based systemic disease. It can harm the human skin, breathing, digestion, urinary, cardiovascular, neurological, and hematopoietic systems. The exploitation of arsenic-contaminated groundwater, the use of arsenic-containing pesticides and fertilizers, metal smelting and mining have led to serious arsenic pollution in a large number of land in my country. Arsenic in the soil environment enters the human body through food, drinking water and breathing. Exceeding the limit can cause human arsenic poisoning. In recent years, arsenic pollution and arsenic poisoning have occurred in Hunan, Guangxi, Yunnan and other places in my...

Claims

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Application Information

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IPC IPC(8): B09C1/08
Inventor 郑犁
Owner 盛世绍普(天津)环保科技有限公司
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