Preparation Method of Rice Straw Biochar Loaded with Bacillus cereus and Use Thereof

A preparation method of a rice straw biochar loaded with Bacillus cereus having a carbon immobilizing capability, comprising the following steps:

• (1) washing, drying, grinding and sieving rice straws;
• (2) performing anaerobic pyrolysis treatment on the rice straws treated in the step (1) at 300-700° C. to obtain a biochar;
• (3) treating the biochar obtained in the step (2) with hydrochloric acid, then washing until a washing solution is neutral, drying, grinding, sieving and sterilizing to obtain a sterilized biochar;
• and
• (4) performing mixed culture on the sterilized biochar obtained in the step (3) and a Bacillus cereus liquid subjected to activation culture, and then centrifuging after the end of culture to remove supernatant, so as to obtain a rice straw biochar loaded with Bacillus cereus, the Bacillus cereus being Bacillus cereus deposited under accession No.:
• CGMCC 1.15914.