MICROBIAL PREPARATION COMPRISING MIXED MICROORGANISMS, AND A BIOLOGICAL TREATMENT METHOD FOR RIVERS AND LAKES AND A SLUDGE AUTODIGESTION PROCESS USING THE SAME

摘要

The biological treatment method for rivers and lakes using a microbial preparation of the present invention comprises: a step of producing a complex microbial liquid by maintaining, at between 18 and 30°C, a microbial liquid obtained by mixing between 0.01 and 1 percent by weight of mixed microorganisms of Repository Deposit No. KCTC 11789BP (BM-S-1), between 1 and 10 percent by weight of chaff powder, between 1 and 10 percent by weight of powdered peat moss, between 1 and 5 percent by weight of shiitake mushroom waste wood, between 1 and 10 percent by weight of molasses and a balance of water (80 to 95 percent by weight); producing a mixed stock comprising between 70 and 90 percent by weight of one or more types of culturing stock selected from the group consisting of chaff powder, peat moss powder, rice bran powder and shiitake mushroom waste wood dried dust and between 10 and 30 percent by weight of the complex microbial liquid; a high-temperature inoculation step in which from 0.01 to 1 part by weight of mixed microorganisms (BM-S-1) is inoculated into 100 parts by weight of the mixed stock, under high-temperature conditions of between 65°C to 90°C; a culturing step involving culturing of the mixed stock that has undergone the high-temperature inoculation; a drying step in which a microbial preparation is produced by drying the mixed stock that has passed through the culturing step; and an introduction step in which the microbial preparation is introduced into a polluted river or lake.