Preparation process and application method of recyclable soil repair balls

Abstract

The invention discloses a preparation process of recyclable soil repair balls. The preparation process comprises raw powder synthesis and repair ball synthesis, wherein raw powder is culture medium raw powder which is prepared by mixing one or a mixture of two of 10-20 parts of aluminosilicate raw powder, 15-20 parts of agar powder and 20-25 parts of peptone with 0.2-0.8 part of an acid-base regulator, 1.2-2.0 parts of trace elements, 10-15 parts of saccharides and 20-50 parts of water; and quickly filtering by a filter. The repair balls are a microporous material, the agar powder is added into the material to serve as a solid culture medium for microorganism growth, the survival rate of microorganisms can be increased, and nutrients are provided for microorganism propagation; the spherical device is formed by adding clay into sodium silicate, aluminum hydroxide, sodium silicate, salt, agar and other raw materials for firing, and secondary pollution cannot be caused; the preparation process is simple, mature and low in cost.

Description

technical field [0001] The invention relates to the technical field of soil restoration, in particular to a preparation process of recyclable soil restoration balls. Background technique [0002] Existing soil microbial remediation technologies mostly use mechanical equipment (buried mechanisms and vehicle-mounted mechanisms) or spraying devices to add liquid culture media or carriers to add exogenous microorganisms to the soil. [0003] CN110272894 A discloses a microbial carrier with a built-in sponge-like porous structure, which is synthesized through processes such as solidification molding, crosslinking, alkali solution immersion, and acetalization using support materials, nano-reinforced materials, adsorption materials, and slow-release carbon sources carrier. [0004] CN 109174961 A discloses a soil remediation inner water-soluble membrane microbial slow-release ball, the surface of which is made of peat and diatomaceous earth is adhered to the honeycomb-shaped pelle...

AI Technical Summary

Problems solved by technology

[0005] In the existing microbial remediation technology, the dosing method using liquid medium as the carrier is likely to cause the loss and dilution of microorganisms. When using ectopic mixing and spreading, considering the possible pathogenicity of biological agents, the construction of secondary pollution control The requirements are high, which reduces its application value in the restoration project of Class I land ("Soil Environmental Quality Construction Land Soil Pollution Risk Control Standard (Trial)" (GB36600-2018))