Method for processing coal mine acid wastewater through sulfate reducing bacteria and spontaneous combustion coal gangue in synergetic manner

The invention discloses a method for processing coal mine acid wastewater through sulfate reducing bacteria and spontaneous combustion coal gangue in a synergetic manner. The method includes the following steps that bottom mud in an oxygen-deficient or locally-oxygen-deficient environment is taken and inoculated in an enrichment culture solution, after the bottom mud is subjected to oscillation culture at the temperature being 32 DEG C at the speed being 150 r/min for 2 weeks, a culture medium becomes black, a bottle opening has the smell of rotten eggs, and a liquid culture medium containing SRB is obtained; the spontaneous combustion coal gangue with the grain size ranging from 30 mesh to 120 mesh is taken and rinsed with distilled water three times, the spontaneous combustion coal gangue is dried at the temperature being 60 DEG C for standby application after surface dust is removed; the liquid culture medium containing the SRB and the spontaneous combustion coal gangue are placed in a reactor in proportio