▎ 摘　　要

NOVELTY - Modified biological carbon soil remediation agent comprises 15-30 pts. wt. struvite, 0.01-0.05 pts. wt. peach red pod sulfur bacteria, 0.01-0.05 pts. wt. Rhodopseudomonas capsulatus, 6-15 pts. wt. plant ash, 15-30 pts. wt. modified biological carbon, and 0.01-0.05 pts. wt. complex enzyme composition. USE - The agent is useful for remediating heavy metal contaminated soil (claimed). ADVANTAGE - The agent: is quickly and efficiently; increases the pH value of the soil; passivates heavy metals; reduces the activity of heavy metals; increases more attachment area for microorganisms; and enhances the adsorption capacity of biological carbon. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the modified biological carbon soil remediation agent, comprising (i) take the struvite of the set quality, drying at 65-75 degrees C to make the moisture content less than 1% of mass, and sieving through 80 meshes sieve, (ii) taking the modified biological carbon, placing into a stirrer, adding a specific amount of deionized water, slowly stirring, and adding struvite, peach red pod sulfur bacteria, R. capsulatus, plant ash and complex enzyme composition, and (iii) introducing the obtained mixture into a granulator to obtain granules with a particle size of 4-6 mm and a length of 8-10 mm.