Heavy metal contaminated soil restoration agent

Abstract

The invention belongs to the technical field of chemical engineering, and relates to soil contamination restoration agents, in particular to a heavy metal contaminated soil restoration agent. The heavy metal contaminated soil restoration agent is mainly characterized by being prepared from medical stone, bentonite, perlite, diatomite, charcoal, a chelating agent and an appropriate quantity of a plant growth regulator in parts by weight. Field experiments prove that, compared with the prior art, the heavy metal contaminated soil restoration agent has the significant advantages that the comprehensive restoration capacity is sufficient, stable and long-term for various heavy metal contaminated soil, the coverage is enlarged, the pertinence is exact, the restoration agent can supply nourishment nutrition to contaminated soil, regulate plant growth, and quicken improvement and restoration.

Description

technical field [0001] The invention belongs to the technical field of chemical industry and relates to a soil pollution remediation agent, in particular to a heavy metal contaminated soil remediation agent. Background technique [0002] The land is the place where living things live, and the soil has the ability to accommodate and purify various wastes. When there are too many pollutants in the soil, which affects and exceeds the self-purification ability of the soil, and has harmful effects on biology, hygiene and epidemiology, it means that the soil is polluted, and the soil is polluted. Lead to crop yield reduction, and even lead to excessive pollution of agricultural products, thereby endangering human health. [0003] There are many reasons for soil pollution, such as the application of pollutants into farmland, industrial sludge, garbage, sewage, chemical fertilizers and pesticides containing heavy metals, etc. With economic development and social changes, industrial...

AI Technical Summary

Problems solved by technology

[0005] The existing heavy metal-contaminated soil remediation technology uses bentonite, perlite, and diatomite as remediation agents. Although it has a certain effect, there are few types of heavy metals covered, poor remediation ability, unstable remediation effect, and long remediation period. Defects such as improvement of damaged soil