Farmland soil conditioner and preparation method thereof

A soil conditioner and farmland technology, applied in soil conditioning materials, chemical instruments and methods, agriculture, etc., can solve the problems of re-release of heavy metal ions, reduce the effectiveness of heavy metals, crop poisoning, etc., and achieve rapid and continuous improvement of pH value Stable repair effect, no secondary pollution effect

Active Publication Date: 2015-08-26
环保桥(湖南)生态环境工程股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the commonly used conditioners have their own limitations. For example, long-term application of phosphorus-containing materials can make the soil strongly alkaline and induce eutrophication of the water body; Risk of toxicity

Method used

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  • Farmland soil conditioner and preparation method thereof
  • Farmland soil conditioner and preparation method thereof
  • Farmland soil conditioner and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: a kind of farmland soil conditioner, it is made of following four kinds of raw materials of weight percent:

[0033]

[0034] The invention discloses a preparation method of a farmland soil conditioner, which comprises the following steps: uniformly mixing raw lime, bentonite, zeolite and sepiolite in proportion to obtain a product, which is a farmland soil conditioner for reducing farmland heavy metal pollution.

Embodiment 2- Embodiment 10

[0035] Embodiment 2-embodiment 10: a kind of farmland soil conditioner, it is made of following four kinds of raw materials of weight percent:

[0036] Example

2

3

4

5

6

7

8

9

10

quicklime

40％

40％

45％

45％

50％

55％

55％

60％

60％

Bentonite

20％

20％

20％

15％

20％

25％

20％

5％

15％

Zeolite

25％

20％

25％

25％

10％

15％

20％

25％

10％

meerschaum

15％

20％

10％

15％

20％

5％

5％

10％

15％

[0037] Its preparation method step is identical with embodiment 1.

[0038] The pilot test of above-mentioned farmland soil conditioner is as follows:

[0039] During 2014, field pilot tests were carried out in Lukou Town, Changsha County, Hunan Province and Huangjin Township, Wangcheng District. Both of the above-mentioned places are pilot projects for remediation of heavy metal-contaminated cultivate...

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PUM

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Abstract

The invention belongs to the technical field of agricultural environmental conservation and restoration, and specifically discloses a farmland soil conditioner and a preparation method thereof. The farmland soil conditioner is prepared by uniformly mixing treated raw materials comprising quicklime, bentonite, zeolite and sepiolite in proportion. According to the invention, the preparation method is easy and simple to operate; the farmland soil conditioner is reasonable in formulation, has functions of restoring heavy metal pollution in soil, regulating soil acidity and alkalinity and the like, enables the contents of available cadmium and lead in polluted farmland to be decreased by 24.1%-35.1% and 28.7%-44.8% respectively, also enables the contents of available cadmium and lead in rice to be decreased by 34.9%-44.7% and 32.3%-46.1% respectively, improves the soil pH by 0.20-0.31, and is applicable to a variety of farmland soils with heavy metal pollution and serious soil acidification.

Description

technical field [0001] The present invention relates to the technical field of agricultural environment conservation and restoration, in particular to a farmland soil conditioner, and also to a preparation method of the above-mentioned farmland soil conditioner. farmland soil. Background technique [0002] With the rapid development of modern technology and economy, the discharge of industrial "three wastes", sewage irrigation, agricultural sludge, and long-term unreasonable application of pesticides and chemical fertilizers have caused heavy metal pollution in farmland soil and become a problem that has attracted widespread attention. Heavy metals in soil can be absorbed by plants and enter the food chain, posing a serious threat to human health. According to the National Soil Pollution Survey Bulletin, the total excess rate of soil in my country is 16.1%, of which the proportions of slightly, lightly, moderately and heavily polluted sites are 11.2%, 2.3%, 1.5% and 1.1%, r...

Claims

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Application Information

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IPC IPC(8): C09K17/08C09K101/00C09K109/00
CPCC09K17/08C09K2101/00C09K2109/00
Inventor 袁海伟周亮
Owner 环保桥(湖南)生态环境工程股份有限公司
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