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Modifier used for soil remediation and preparation method of modifier

A technology of improver and soil, applied in the field of soil pollution control, can solve the problems of expensive chemical materials and biological materials, failure to adjust soil structure, inconvenient soil treatment, etc., achieve the elimination of heavy metal pollution in soil, rich raw material reserves, and Effects of environmental value and eco-efficiency

Inactive Publication Date: 2018-02-16
WUHAN MATENG TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the raw materials used for soil treatment are chemical engineering, and a small part is biological materials. Although a small amount of mineral materials are used, the amount is small, which cannot achieve the purpose of adjusting the soil structure, and chemical materials and biological materials are expensive. , resource supply is scarce, which brings inconvenience to soil management

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A modifier for soil treatment, which is composed of the following raw materials in parts by weight: 35 parts of straw, 15 parts of sewage plant sludge, 12 parts of bentonite, 5 parts of vermiculite, 6 parts of medical stone, 10 parts of attapulgite, 8 parts of sepiolite, 5 parts of mica stone, 2 parts of starch, 1.5 parts of sulfate, 3 parts of willow, 4 parts of chayote, 2 parts of monstera and 8 parts of tea residue. The starch is edible starch, and the sulfate is zinc sulfate.

[0022] The preparation method of the improver for soil treatment, the specific steps are as follows:

[0023] Step 1: air-dry, crush and pass through a 90-mesh sieve to obtain sludge powder, crush the straw and pass through a 60-mesh sieve to obtain straw powder, immerse the straw powder in 0.6mol / L hydrochloric acid solution, deionized water and 0.4mol / L sodium hydroxide solution for 18 minutes, finally washed with deionized water until neutral, and then dried at 38 degrees Celsius to const...

Embodiment 2

[0031] A improver for soil treatment, which consists of the following raw materials in parts by weight: 42 parts of straw, 19 parts of sewage plant sludge, 15 parts of bentonite, 8 parts of vermiculite, 9 parts of medical stone, 12 parts of attapulgite, 10 parts of sepiolite, 7 parts of mica stone, 3.5 parts of starch, 2.2 parts of sulfate, 5 parts of willow, 6 parts of chayote, 2.5 parts of monstera, 12 parts of tea residue, 8 parts of humic acid and 18 parts of fruit and vegetable waste share.

[0032] The preparation method of the improver for soil treatment, the specific steps are as follows:

[0033] Step 1: air-dry, crush and pass through a 100-mesh sieve to obtain sludge powder, crush the straw and pass through an 80-mesh sieve to obtain straw powder, immerse the straw powder in 0.8mol / L hydrochloric acid solution, deionized water and 0.4mol / L sodium hydroxide solution for 20 minutes, finally washed with deionized water until neutral, and then dried at 42 degrees Celsi...

Embodiment 3

[0041] A improver for soil treatment, which consists of the following raw materials in parts by weight: 48 parts of straw, 25 parts of sewage plant sludge, 16 parts of bentonite, 10 parts of vermiculite, 12 parts of medical stone, 15 parts of attapulgite, 12 parts of sepiolite, 10 parts of mica stone, 5 parts of starch, 2.8 parts of sulfate, 6 parts of willow, 8 parts of chayote, 3 parts of monstera, 14 parts of tea residue, 10 parts of humic acid and 22 parts of fruit and vegetable waste share. The starch is edible starch, and the sulfate is a mixture of zinc sulfate, calcium sulfate, ammonium sulfate and sodium sulfate.

[0042] The preparation method of the improver for soil treatment, the specific steps are as follows:

[0043] Step 1: air-dry, crush and pass through a 120-mesh sieve to obtain sludge powder, crush the straw and pass through an 80-mesh sieve to obtain straw powder, immerse the straw powder in 0.6mol / L hydrochloric acid solution, deionized water and 0.5mol...

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PUM

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Abstract

The invention discloses a modifier used for soil remediation. The modifier comprises, by weight, 35-48 parts of straw, 15-25 parts of sludge from a sewage plant, 12-16 parts of bentonite, 5-10 parts of vermiculite, 6-12 parts of maifan stone, 10-15 parts of attapulgite, 8-12 parts of sepiolite, 5-10 parts of micalex, 2-5 parts of starch, 1.5-2.8 parts of sulfate, 3-6 parts of willows, 4-8 parts ofchayote, 2-3 parts of monstera deliciosa, and 8-14 parts of tea residue. The invention further discloses a preparation method of the improver. The raw materials are pure natural, are abundant in reserve, and are available. The prepared improver can improve the soil structure, and eliminate heavy meal pollution in soil. The modifier causes small ecological pollution, provides healthy living environment for people, and has environmental protection value and ecological benefit.

Description

technical field [0001] The invention relates to the field of soil pollution control, in particular to a modifier for soil control. Background technique [0002] The rapid development of modern society brings people a lot of harm while bringing people an ever-changing material life, many of which are caused by people's excessive intervention in nature. Soil is the foundation of plant survival and the foundation of human survival. Since people engaged in agricultural production, people have been constantly asking for land. Especially since the development of modern agriculture, people have used excessive chemical fertilizers and pesticides, which has damaged the soil structure. Destruction, loss of activity, agglomeration, mineralization and cracking, damage to the continuity of land cultivation, resulting in excessive accumulation of toxic heavy metals in the soil, among which lead and cadmium are the most polluted, and these heavy metals can easily enter the human body throu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C09K101/00
CPCC09K17/40C09K2101/00
Inventor 姚尧陈海田魏张军
Owner WUHAN MATENG TECH DEV
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