Sulfate-reducing bacteria composite material for treating mine acid wastewater and preparation method thereof

Abstract

The application provides a sulfate-reducing bacteria composite material for treating mine acid wastewater and a preparation method thereof, and belongs to the technical field of wastewater treatment materials, and comprises the following steps: (1) pretreatment of steel slag; (2) preparation of a carbon source; (3) preparation of a carrier-carbon source compound; (4) inoculation of SRB bacteria into a culture medium to obtain SRB bacteria liquid; (5) loading of the SRB bacteria liquid on the compound and stirring to obtain a mixture; and (6) culture of the mixture in a constant-temperature oscillation incubator to obtain the composite material. The composite material combines physical adsorption of the pretreated steel slag and biological reduction of the sulfate-reducing bacteria, effectively improves the removal rate of heavy metal ions compared with a single adsorbent or microorganism, and effectively reduces the concentration of sulfates, and solves the problem of single treatment effect of a traditional method.

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