Nutritional soil heavy metal restoration agent

Abstract

The invention discloses a nutritional soil heavy metal restoration agent which is prepared from the following raw materials in parts by weight: 28-30 parts of fungus dreg, 16-19 parts of straw, 10-11 parts of wood dust, 7-9 parts of diammonium phosphate, 2-3 parts of sodium phytate, 5-7 parts of bentonite, 3-5 parts of medical stone powder, 80-90 parts of deseeded sunflower head, 28-32 parts of pig manure, 19-21 parts of kaolin, 8-9 parts of calcium carbonate, 28-30 parts of slash pine needle and a right amount of. The soil restoration agent can stabilize, enhance and balance the physical functions of the soil. The added fungus dreg, straw and the like increase the organic content of the soil. The medical stone powder, bentonite and the like enhance the air permeability of the soil, and relieve the soil hardening. The soil restoration agent has strong removal effects on chromium, cadmium and other pollutants in the soil, increases the soil fertility, and enhances the comprehensive properties of the soil.

Description

technical field [0001] The invention relates to the technical field of soil restoration, in particular to a nutritional 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 u...

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