A soil conditioner for remediating soil nickel pollution and its preparation method and use method

Abstract

The invention discloses a soil improver for repairing soil nickel pollution, which is made of the following raw materials in parts by weight: 1.0-3.0 parts of iron phosphate, 0.5-3.5 parts of manganese sulfate, 0.5-5.5 parts of ammonium hydroxide, chelate 1.5-7.5 parts of the mixture, 2-8 parts of isoleucine, and 3.0-10.0 parts of rhizobia; the invention also discloses a preparation method and a use method of the soil conditioner. The soil improver prepared by the invention has excellent permeability, water retention capacity and nutrient supply capacity, can effectively maintain the activity of rhizobia, reduce the activity of nickel in the soil, and prevent the scope of nickel-contaminated soil from further expanding; the invention has raw materials Easy to obtain, low production cost, stable performance, etc., can repair nickel-contaminated soil in a short time, improve soil fertility, high repair efficiency, no secondary pollution, and the repaired soil can be directly used for agricultural planting.

Description

Technical field[0001]The present invention belongs to the field of ecological environmental protection, and in particular, the invention relates to a soil modifier for repairing soil nickel contamination and a preparation method thereof.Background technique[0002]The soil refers to the surface surface of the land, which can grow the loose surface layer of plants, which is generally about 2 m. The soil not only provides mechanical support capabilities for plant growth, but also provides fertility elements such as water, fertilizer, gas, heat such as plant growth. Due to the rapid growth of the population, the industrial is rapidly developed, solid waste is constantly stacking and dumping the soil surface, and harmful wastewater has continuously penetrated into the soil. The harmful gases in the atmosphere continue to land in the soil with rainwater, leading to soil pollution. Any substance that hinders the normal function of soil, reducing crop yield and quality, is also known as soil...

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Problems solved by technology

This soil remediation method is suitable for remediation of heavy metal-contaminated soil, and has the advantages of low cost. However, the soil treated by the above-mentioned patent is only effective for cadmium, and it is difficult to meet the status quo of other heavy metal pollution in the soil. There are also various difficulties in promoting the use of

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