Method for enhancing biodegradability of microplastics through biochar

The invention discloses a method for enhancing the biodegradability of microplastics through biochar, relates to the field of biodegradation of microplastics, solves the problems that existing microplastics are difficult to degrade and severely affect and harm human health, and provides the following scheme: the method comprises the following steps of: improving the abundance of microorganisms by using biochar; a proper habitat is provided for soil microorganisms, and when the microbial agent is applied to decomposition of micro-plastics by microorganisms, the content of the microorganisms in the soil is increased, the decomposition efficiency is improved, and then hydrolase released by the microorganisms is specifically combined with receptors on the surfaces of the plastics, so that the hydrolase is hydrolyzed into fatty acid or lipid substances with the molecular weight smaller than 500; therefore, the microplastics are further decomposed into water and carbon dioxide and energy is provided ...