Sludge aerobic composting method by utilizing composting compound microbial inoculum

The invention discloses a sludge aerobic composting method by utilizing composting compound microbial inoculum, which relates to a sludge aerobic composting method. The invention solves the problems of poor competitive power, long composting period and great nitrogen loss of the microbial inoculum in the prior sludge aerobic composting method. The method comprises the following steps: 1. carryingout amplification culture on microbial liquid A; 2. carrying out acclimation culture on the compound microbial inoculum A; 3. carrying out amplification culture on microbial liquid B; 4. carrying outacclimation culture on the compound microbial inoculum B; 5. taking dewatered sludge from a sewage plant, and mixing with conditioner; 6. inoculating the compound microbial inoculum, and composting; 7. and covering a layer of compound microbial inoculum B on the surface of the compost, and composting until the compost temperature reaches the ambient temperature, thereby finishing the sludge aerobic composting. The method shortens the time for the compost to reach the high temperature period by 2-3 days, shortens the composting period to 10-15 days, lowers the ammonia volatile amount of the compost by 30-50%, reduces the environmental pollution and enhances the fertilizer efficiency. The invention is applicable to sludge aerobic composting.