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Soil remediation agent for heavy metal fixing and preparation method thereof

A soil remediation agent and heavy metal technology, applied in the field of soil remediation, can solve the problems of large differences in improvement effects and achieve reliable soil remediation performance, good application prospects, and strong practicability

Inactive Publication Date: 2017-02-22
何晓东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The improvement agent for degraded soil is a method developed on the basis of modern industry. Different improvement agents have different improvement effects due to their different structures, properties, and mechanisms of action.

Method used

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  • Soil remediation agent for heavy metal fixing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Weigh 10 parts of montmorillonite, 5 parts of bentonite, 5 parts of weathered coal, 3 parts of biochar, 4 parts of polylactic acid fiber, 5 parts of plant ash, 5 parts of livestock manure, 2 parts of corn straw, rapeseed 3 parts of slag, 2 parts of Jerusalem artichoke extract, 2 parts of glycine, 3 parts of sodium hexametaphosphate, 3 parts of manganese nitrate, 2 parts of copper sulfate, 2 parts of magnesium chloride, 2 parts of calcium hydroxide, 7 parts of chitosan, 2 parts of phosphorus bacteria 1 part, 1 part of Bacillus lateralis, 2 parts of Streptomyces thermophilic amylase, 2 parts of butylated hydroxyanisole, 3 parts of sodium salicylate;

[0023] (2) Add plant ash, livestock manure, corn stalks, rapeseed dregs, Jerusalem artichoke extract, glycine, and sodium hexametaphosphate into the spray dryer, and dry to obtain powder. Temperature 165°C;

[0024] (3) Add montmorillonite, bentonite, weathered coal, biochar, polylactic acid fiber, manganese nitrate, co...

Embodiment 2

[0031] (1) Weigh 11 parts of montmorillonite, 7 parts of bentonite, 6 parts of weathered coal, 4 parts of biochar, 6 parts of polylactic acid fiber, 6 parts of plant ash, 6 parts of livestock manure, 3 parts of corn straw, rapeseed 4 parts of slag, 3 parts of Jerusalem artichoke extract, 2 parts of glycine, 4 parts of sodium hexametaphosphate, 4 parts of manganese nitrate, 3 parts of copper sulfate, 3 parts of magnesium chloride, 3 parts of calcium hydroxide, 8 parts of chitosan, lateral spores 2 parts of Bacillus, 3 parts of Streptomyces thermophilic amylase, 3 parts of Streptococcus thermophilic salivarius, 3 parts of 2,6-di-tert-butyl-4-methylphenol aldehyde, 4 parts of magnesium stearate;

[0032] (2) Add plant ash, livestock manure, corn stalks, rapeseed dregs, Jerusalem artichoke extract, glycine, and sodium hexametaphosphate into the spray dryer, and dry to obtain powder. Temperature 165°C;

[0033] (3) Add montmorillonite, bentonite, weathered coal, biochar, polylacti...

Embodiment 3

[0040] (1) Weigh 12 parts of montmorillonite, 9 parts of bentonite, 7 parts of weathered coal, 7 parts of biochar, 9 parts of polylactic acid fiber, 9 parts of plant ash, 7 parts of livestock manure, 5 parts of corn straw, rapeseed 6 parts of slag, 4 parts of Jerusalem artichoke extract, 3 parts of glycine, 6 parts of sodium hexametaphosphate, 6 parts of manganese nitrate, 5 parts of copper sulfate, 5 parts of magnesium chloride, 4 parts of calcium hydroxide, 9 parts of chitosan, thermophilic saliva Streptococcus 3 parts, Bacillus stearothermophilus 3 parts, Bacillus colloidus 3 parts, tert-butyl hydroquinone 5 parts, 2-ethyl lead acetate 7 parts;

[0041] (2) Add plant ash, livestock manure, corn stalks, rapeseed dregs, Jerusalem artichoke extract, glycine, and sodium hexametaphosphate into the spray dryer, and dry to obtain powder. Temperature 165°C;

[0042](3) Add montmorillonite, bentonite, weathered coal, biochar, polylactic acid fiber, manganese nitrate, copper sulfate...

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Abstract

The invention discloses a soil remediation agent for heavy metal fixing. Plant ash, livestock manure, corn straw, rapeseed residues, Jerusalem artichoke extract, glycine, chitosan and a fermented microbial agent are used as main components, and sodium hexametaphosphate, montmorillonite, bentonite, weathered coal, charcoal, polylactic acid fiber, manganese nitrate, copper sulfate, magnesium chloride, calcium hydroxide, a stabilizer and an antioxidant are added to prepare the soil remediation agent for heavy metal fixing by being assisted by spray drying, pressurized calcination, high-temperature mixing, ultrasonic smashing, quick mixing, dark fermentation and other processes. The soil remediation agent for heavy metal fixing is reliable in soil restoration performance, can effectively reduce the heavy metal content in soil and is pollution-free to the environment.

Description

technical field [0001] The invention relates to the technical field of soil restoration, in particular to a soil restoration agent for fixing heavy metals and a preparation method thereof. Background technique [0002] Soil pollution has become a worldwide problem, and organic pollution, especially persistent organic pollution, is a major type of soil pollution. At present, there are at least 13 to 16 million hectares of arable land polluted by pesticides and other organic substances in my country, and the situation is increasing day by day. Soil pollution can affect the yield and quality of crops, and can endanger human health through the food chain, and can also lead to further deterioration of the quality of the atmosphere and water environment. Therefore, the control of soil pollution is urgent. At present, soil degradation caused by various unreasonable human activities has seriously threatened the sustainable development of agriculture all over the world. The improv...

Claims

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Application Information

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IPC IPC(8): C09K17/40
CPCC09K17/40
Inventor 何晓东
Owner 何晓东
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