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Acid soil amendment and preparation method thereof

A technology of acidic soil and improver, applied in the field of soil treatment, can solve the problems of poor sterilization rate, long improvement cycle, inability to effectively reduce the content of heavy metal ions in soil, etc., and achieve the effect of reducing content, short cycle, and increasing pH value

Inactive Publication Date: 2016-04-27
JIANGSU GAIYA ENVIRONMENTAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem to be solved: Aiming at the shortcomings of the existing acidic soil conditioners, such as long improvement cycle, poor sterilization rate and inability to effectively reduce the content of heavy metal ions in the soil, the present invention provides an acidic soil conditioner and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An acidic soil improver, containing the following components in parts by mass: 4 parts of silicon dioxide, 1 part of calcium oxide, 3 parts of biochar, 3 parts of lignin, 2 parts of urea, 2 parts of sodium aluminosilicate, 1 part of organic bentonite 0.3 part of polymaleic anhydride, 0.5 part of hydrogen peroxide, 0.3 part of β-cyclodextrin, 0.4 part of phospholipase, 0.2 part of pepper powder, and 0.2 part of sweet potato powder.

[0018] A preparation method of an acidic soil conditioner, the steps of the preparation method are as follows:

[0019] Step 1: Mix silica, calcium oxide, biochar, lignin, urea, sodium aluminosilicate, organic bentonite, polymaleic anhydride, hydrogen peroxide, β-cyclodextrin, phospholipase, pepper powder, and sweet potato powder Uniformly, get mixed material;

[0020] Step 2: compost the mixed material for 15 days, turn over the pile every two days, and then dry it to obtain dry material;

[0021] The third step: the dry material is made ...

Embodiment 2

[0023] An acidic soil improver, containing the following components in parts by mass: 12 parts of silicon dioxide, 6 parts of calcium oxide, 10 parts of biochar, 8 parts of lignin, 6 parts of urea, 6 parts of sodium aluminosilicate, 4 parts of organic bentonite 0.7 parts of polymaleic anhydride, 1 part of hydrogen peroxide, 0.7 parts of β-cyclodextrin, 1 part of phospholipase, 0.8 parts of pepper powder, and 0.8 parts of sweet potato powder.

[0024] A preparation method of an acidic soil conditioner, the steps of the preparation method are as follows:

[0025] Step 1: Mix silica, calcium oxide, biochar, lignin, urea, sodium aluminosilicate, organic bentonite, polymaleic anhydride, hydrogen peroxide, β-cyclodextrin, phospholipase, pepper powder, and sweet potato powder Uniformly, get mixed material;

[0026] Step 2: Compost the mixed material for 25 days, turn over the pile every two days, and then dry it to obtain dry material;

[0027] Step 3: Make the dry material into pa...

Embodiment 3

[0029] An acidic soil improver, containing the following ingredients in parts by mass: 10 parts of silicon dioxide, 5 parts of calcium oxide, 9 parts of biochar, 7 parts of lignin, 5 parts of urea, 5 parts of sodium aluminosilicate, 3 parts of organic bentonite 0.6 part of polymaleic anhydride, 0.9 part of hydrogen peroxide, 0.6 part of β-cyclodextrin, 0.9 part of phospholipase, 0.7 part of pepper powder, and 0.6 part of sweet potato powder.

[0030] A preparation method of an acidic soil conditioner, the steps of the preparation method are as follows:

[0031] Step 1: Mix silica, calcium oxide, biochar, lignin, urea, sodium aluminosilicate, organic bentonite, polymaleic anhydride, hydrogen peroxide, β-cyclodextrin, phospholipase, pepper powder, and sweet potato powder Uniformly, get mixed material;

[0032] Step 2: compost the mixed material for 20 days, turn over the pile every two days, and then dry it to obtain dry material;

[0033] Step 3: Make the dry material into gr...

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Abstract

The invention relates to an acid soil amendment and its preparation method. the soil amendment contains the following ingredients (by weight): 4-12 parts of silicon dioxide, 1-6 parts of calcium oxide, 3-10 parts of biochar, 3-8 parts of lignin, 2-6 parts of urea, 2-6 parts of sodium silicoaluminate, 1-4 parts of organic bentonite, 0.3-0.7 part of polymaleic anhydride, 0.5-1 part of hydrogen peroxide, 0.3-0.7 part of beta-cyclodextrin, 0.4-1 part of phosphatidase, 0.2-0.8 part of powder of Chinese prickly ash and 0.2-0.8 part of sweet potato powder. The soil amendment provided by the invention can effectively raise pH value of acid soil and improve the defect of short period of soil. Meanwhile, the acid soil amendment can effectively kill noxious bacteria in soil and also can effectively reduce content of heavy metal ion in soil.

Description

technical field [0001] The invention relates to the technical field of soil treatment, in particular to an acidic soil conditioner and a preparation method thereof. Background technique [0002] Acidic soil is a general term for soil with a pH value less than 7, including brick red soil, red soil, red soil, yellow soil and dry red soil. In the tropical and subtropical regions of my country, acidic soils of various red or yellow soils are widely distributed. The local temperature is high and the rainfall is heavy, with the annual rainfall mostly above 1500mm. The characteristics of high temperature, rainy season, and hot and humid seasons make the weathering and pedogenesis of the soil very strong, and the cycle of biological matter is very rapid. The base is highly unsaturated and the pH is generally 4.5-6. At the same time, iron and aluminum oxides are obviously accumulated, and the soil is sour and thin. It is necessary to adjust the pH of the soil by applying amendmen...

Claims

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Application Information

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IPC IPC(8): C09K17/40C09K109/00
CPCC09K17/40C09K2109/00
Inventor 程功弼仲英豪
Owner JIANGSU GAIYA ENVIRONMENTAL SCI & TECH CO LTD
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