| abstract |
The invention discloses a microbial inactivator for remediating soil heavy metal pollution and its preparation and use; it includes the fermentation and adsorption of strains, and the method is to ferment the bacterial liquid of Bacillus megaterium and Bacillus subtilis LVLE‑14 Mix in proportion, use special adsorption carrier to absorb, mix and pulverize after adsorption. The adsorption carrier includes hydrolyzed slag and biochar, which are mixed and pulverized according to the mass ratio. The microbial passivation agent for repairing soil heavy metal pollution provided by the invention can effectively reduce the effective content of heavy metals in the soil, and greatly increase the number of microbial populations and plant yield; the method for repairing soil heavy metal pollution by using the microbial passivation agent of the present invention belongs to The in-situ restoration is simple in operation, low in cost, and easy to be implemented industrially; and the restoration effect is good, without destroying soil fertility, and can improve resource utilization. |