Remover for removing mercury and cadmium ions in saline-alkali soil and preparation method thereof

A technology of cadmium ions and saline-alkali land, applied in soil conditioning materials, chemical instruments and methods, fertilizers made from biological waste, etc., can solve the problems of long repair time, high repair cost, secondary pollution, etc., and reduce the evaporation rate of water , Improve air permeability and water permeability, and ensure safety

Inactive Publication Date: 2019-11-19
SHANDONG SUNWAY LANDSCAPE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Soil heavy metal pollution control technologies mainly include phytoremediation, microbial remediation, chemical remediation and physical remediation, etc. Among them, phytoremediation technology has the advantages of low cost and green environmental protection, but it takes a long time to repair; most of the microbial remediation only targets Degradation does not consider reducing the absorption of crops, and the simple

Method used

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  • Remover for removing mercury and cadmium ions in saline-alkali soil and preparation method thereof
  • Remover for removing mercury and cadmium ions in saline-alkali soil and preparation method thereof
  • Remover for removing mercury and cadmium ions in saline-alkali soil and preparation method thereof

Examples

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Effect test

Embodiment 1

[0023] A soil mercury and cadmium ion remover for saline-alkali land, comprising the following raw material components in parts by weight: 30 parts of mineral humus superfine powder, 5 parts of white rot fungus liquid, 6 parts of arbuscular mycorrhizal fungus root system bacterial agent, 5 parts of citric acid 2 parts, 2 parts of soil moisture retention agent, 20 parts of glutinous rice wine dregs powder.

[0024] The white rot fungus liquid is Phanerochaete chrysosporium liquid; the arbuscular mycorrhizal fungus root fungus is a macrosporangium arbuscular mycorrhizal fungus root fungus.

[0025] The soil moisture retention agent is a starch / polyacrylate graft polymer.

[0026] The particle size of the mineral source humus ultrafine powder is 1 μm.

Embodiment 2

[0028] The preparation method of the saline-alkali land soil mercury of embodiment 1, cadmium ion remover, concrete steps are as follows:

[0029] A: Mineral source humus is crushed through a grinder at normal temperature and pressure, and then adjusted by an airflow classifier to obtain mineral source humus ultrafine powder with a particle size of 1 μm;

[0030] B: drying the glutinous rice distiller's residue until the water content is 5 wt%, and then grinding it with a grinder to control the particle size of the powder to be 0.8mm, so as to obtain glutinous rice distiller's residue powder;

[0031] C: Take tryptone with a weight ratio of 10:3:5:1000: beef extract powder: sodium chloride: distilled water and mix evenly to obtain an agar culture solution, disinfect the surface of the clover seeds, wash off the disinfectant with sterilized distilled water , germination on the agar nutrient solution, and then sterilize the surface of the spores of the arbuscular mycorrhizal fun...

Embodiment 3

[0035] A soil mercury and cadmium ion remover for saline-alkali land, comprising the following parts by weight: 35 parts of mineral humus superfine powder, 6 parts of white rot fungal liquid, 7 parts of arbuscular mycorrhizal fungus root system bacterial agent, 6 parts of citric acid, 3 parts of soil moisture retention agent, 25 parts of glutinous rice wine dregs powder.

[0036] The white rot fungus liquid is Phanerochaete chrysosporium liquid; the arbuscular mycorrhizal fungus root fungus is a macrosporangium arbuscular mycorrhizal fungus root fungus.

[0037] The soil moisture retention agent is a starch / polyacrylate graft polymer.

[0038] The particle size of the ultrafine powder of mineral source humus is 5 μm.

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Abstract

The invention discloses a remover for removing mercury and cadmium ions in saline-alkali soil and a preparation method thereof. The remover comprises the following raw materials in parts by weight: 30to 50 parts of ultrafine mineral-originated humus powder, 5 to 10 parts of white-rot fungus liquid, 6-10 parts of an arbuscular mycorrhizal fungus root system inoculant, 5-10 parts of citric acid, 2-5 parts of soil moisture preservation agent, 20-30 parts of glutinous rice wine residue powder, 1-5 parts of a soil moisture preserving agent. The ultrafine mineral-originated humus powder can loosensoil and improve air permeability and water permeability, and is rich in element amount, and a carbon source and a nitrogen source included in the ultrafine mineral-originated humus powder provide nutrients required by microbial growth; the soil moisture preservation agent has strong water retention and storage effects, and can reduce the evaporation speed of water in soil; the arbuscular mycorrhizal fungus root system inoculant can inhibit heavy metal ion absorption of crops; white-rot fungi can degrade heavy metal ions in soil; and citric acid can adsorb heavy metals in soil in a short time,and the acidity of the citric acid can reduce the pH value of the saline-alkali soil.

Description

technical field [0001] The invention relates to the technical field of saline-alkali soil improvement, in particular to a soil mercury and cadmium ion remover for saline-alkali soil and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of social economy, the content of heavy metals in soil has been increasing, and soil heavy metal pollution has become a common environmental problem and has attracted more and more attention. Looking back at the heavy metal soil pollution incidents in my country in recent years, it is not difficult to find that heavy metals such as mercury and cadmium are the main ones. It has brought a serious threat to the ecological environment and food safety, and at the same time, it is also a difficulty in the prevention and restoration of soil pollution. According to official data in 2014, the area of ​​cultivated land contaminated by mercury in Wanshan was about 100,000 mu, involving a population of...

Claims

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Application Information

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IPC IPC(8): C09K17/40C05G3/04C09K101/00
CPCC05F5/008C09K17/40C09K2101/00
Inventor 王胜
Owner SHANDONG SUNWAY LANDSCAPE TECH
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