A kind of medicament for remediation of polluted soil and preparation method thereof

Abstract

The invention discloses a medicament for remediating polluted soil and a preparation method thereof. The present invention consists of 5 to 100 parts of microbial agents and 1 to 200 parts of chemical agents in parts by weight; microbial agents include indigenous microbial cultures, nitrifying bacteria cultures, denitrifying bacteria cultures, and phosphorus accumulating bacteria The weight ratio of the culture of bacteria, yeast culture, lactic acid bacteria, indigenous microorganism culture, nitrifying bacteria culture, denitrifying bacteria culture, phosphorus accumulating bacteria culture, yeast culture, and lactic acid bacteria culture is 5 to 10: 10~15: 10~15: 5~10: 10~15, 5~10; chemical agents include heavy metal deactivator and curing agent, the weight ratio of heavy metal deactivator and curing agent is 1‑30: 3‑170 . The invention adopts the combined physical-chemical-biological treatment technology to treat the polluted soil, and the invention has a good restoration effect on the polluted soil.

Description

technical field

[0001] The invention relates to the technical field of soil treatment, in particular to a medicament for remediation of polluted soil and a preparation method thereof. Background technique

[0002] Soil pollution has become a global environmental pollution problem. In recent years, the situation of soil pollution in my country has been very serious: a large area of ​​cultivated land in the country has been polluted by heavy metals and pesticides, seriously threatening the quality and safety of the country's "rice bags" and "vegetable baskets". Commonly used contaminated soil remediation techniques can be roughly divided into ex-situ remediation techniques and in-situ remediation techniques. Whether it is in-situ remediation or ex-situ remediation of polluted soil, in essence, the technical principles of contaminated soil remediation are: (1) Change the existing form of pollutants in the soil or the way they combine with the soil to reduce their pollution in t...