Soil heavy metal remediation agent

Abstract

The invention discloses a soil heavy metal remediation agent. The soil heavy metal remediation agent is prepared from, by weight, 14-15 parts of pulverized fuel ash, 12-15 parts of kelp residues, 9-11 parts of monopotassium phosphate, 33-36 parts of soybean cake powder, 22-24 parts of turf, 4-5 parts of ammonium chloride, 80-85 parts of seed removed sunflower plates, 24-26 parts of dry rabbit dung powder, 22-25 parts of kaolin, 10-12 parts of calcium carbonate, 36-40 parts of slash pine leaves and a proper amount of water. According to the soil remediation agent, by means of adding of the turf, the kelp residues and other fermentation materials, a large quantity of organic matter and nutritional ingredients can be provided for contaminated soil, and the potential fertility of the contaminated soil is improved; and the pulverized fuel ash, the kaolin and the like further have the loosening function on the soil, the water-holding capacity of the soil is improved, and therefore the fertility of the land is achieved while soil heavy metal contamination is eliminated, the soil is suitable for being used for planting and greening, and the utilization value of the soil is greatly increased.

Description

technical field [0001] The invention relates to the technical field of soil restoration, in particular to a soil heavy metal restoration agent. Background technique [0002] The sources of heavy metal pollution in my country mainly include industrial "three wastes" discharge, seepage of household garbage, household coal burning, and vehicle exhaust emissions. Industries such as electroplating, plastics, chemicals, and mineral smelting and processing are the main industrial sources of heavy metals. The release of coal combustion is also one of the important causes of soil heavy metal pollution. Motor vehicle exhaust can also significantly cause heavy metal pollution in the soil on both sides of the road. The content of some heavy metal elements in municipal solid waste exceeds the standard, and long-term stacking will also cause heavy metals to leak into the soil, resulting in an increase in local heavy metal content in regional soil. In addition, the long-term unreasonable ...

AI Technical Summary

Problems solved by technology

Heavy metal elements are easy to combine with the sulfhydryl group in the active part of the enzyme, and the metal element will replace the essential elements in the sulfur protein, such as Mg2+, Ca2+ and other biologically necessary elements. The antioxidant system in the system wreaks havoc

[0004] At present, the remediation technology of heavy metal-contaminated soil mainly adopts chemical means, but a large number of chemical agents used in the remediation process can easily cause soil re-pollution