The invention provides a method for producing a
microbial agent by using filter mud of
sugar mills through
fermentation, belonging to the field of the production technology of the microbial agents. The method can produce the high quality
microbial agent and treat the pollutions caused by the
industrial waste filter mud of the
sugar mills at the same time, and also can achieve the circulating
economic benefits for the
sugar industries. The method comprises the steps of mixing the filter mud of the sugar mills, weathered
coal of the
humic acid or grass carbon and dried
straw to obtain a mixture, controlling the
water content of the mixture to 33%-70%, adding the
microbial agent into the mixture at a
mass ratio of 2% of the microbial agent to the mixture, rapidly stirring to form a homogeneous mixture, loading into a sealing bag, and carrying out anaerobic
fermentation for 10 days at a
room temperature of the south of China to obtain the microbial agent with an effective living
bacteria number being greater than or equal to 300 million / g (higher than the
national standard of 200 million / g). According to the invention, the method has the advantages of low cost, simple operation and high product quality, achieves the effective
resource utilization through converting the filter mud of the
sugar mill into a treasure, solves the problem of the environmental
pollution and saves high
environmental protection cost for the sugar industries, and brings good
economic benefits at the same time, which can form a closed biosphere of the
sugar production; and the biosphere creates circulating
economic benefits, and brings rich rewards to the sugar industries and the sugarcane farmers.