Composite biochar mine repairing material based on membrane material and preparation method of composite biochar mine repairing material

Abstract

The invention relates to a composite biochar mine repair material based on a membrane material and a preparation method thereof, the material comprises a main material and an auxiliary material, the main material comprises the following components in parts by mass: 60-80 parts of sludge, 10-20 parts of poplar biochar powder and sludge biochar powder, 10-30 parts of water and a deodorizing and sterilizing agent; the auxiliary materials comprise 20-30 parts of polyethylene glycol and 70-80 parts of acrylic resin modified casein, polyacrylamide and derivatives thereof, lignosulfonate and/or cellulose derivatives; 80 to 120 parts of a composite EM microbial agent; the mass ratio of the main material to the auxiliary material is (90-95): (5-10). The adhesive film can be formed when water is evaporated to a certain degree, film forming during use is achieved, organic components of the material are increased, the service life can reach 2-3 years or even 7-8 years, and the adhesive film can be naturally decomposed after the service life expires. And the decomposition function of the composite EM microbial agent can be utilized according to requirements, so that timed decomposition is realized without residues, water and fertilizer can be retained, salinization can be prevented, and the environment is not polluted.

Description

technical field [0001] The invention belongs to the field of ecological restoration, and in particular relates to a composite biochar mine restoration material based on a membrane material. Background technique [0002] At present, the use of mulching film in agricultural production not only has the effect of maintaining soil moisture and preventing salinization, but also has functions such as fertilizer conservation, insect control and weed suppression, which can improve crop yield and agricultural benefits. Agricultural plastic film has produced huge economic and social benefits since its application. It can increase the yield of crops by 20-50%, which greatly promotes the development of agriculture in my country. [0003] However, most of the plastic mulch films that are widely used in the market are non-degradable plastics, which are difficult to degrade under natural conditions, and can survive in soil for 200 to 400 years. In addition, the mulch film has low strength,...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of short service life and pollution in existing liquid mulch technology, the prese