BIOLOGICAL TREATMENT METHOD AND WASTE-WATER TREATMENT AGENT FOR REFRACTORY WASTEWATER

摘要

The present invention relates to a biological treatment method for sewage and wastewater, tannery wastewater and livestock manure, and, more particularly, relates to a biological treatment method and a waste-water treatment agent for refractory wastewater, whereby not only is it possible to treat refractory wastewater biologically without any physical/chemical pre-processing but it is also possible to reduce the occurrence of the odors and the sludge which occur in the process of wastewater treatment. The biological treatment method for refractory wastewater of the present invention comprises: a step of producing a complex microbial liquid by maintaining, at between 15 and 28°C, a complex microbial liquid obtained by mixing between 0.01 and 1 percent by weight of mixed microorganisms BM-S-1 (Repository Deposit No. KCTC 11789BP), between 0.1 and 1 percent by weight of powdered chaff, between 0.1 and 1 percent by weight of powdered peat moss, between 1 and 5 percent by weight of molasses, between 0.01 and 1 percent by weight of shiitake mushroom waste wood dust and between 92 and 98 percent by weight of water; a mixed stock production step entailing the mixing of from 50 to 95 percent by weight of a culture stock with from 5 to 50 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 85°C; a culturing step involving culturing of the mixed stock that has undergone the high-temperature inoculation; a drying step in which the cultured mixed stock is dried; a microbial starting broth production step in which the dried mixed stock is cultured in the liquid state; and a microbe activation step in which the microbe population is multiplied in order to introduce the microbial starting broth, that has undergone the microbial starting broth production step, into wastewater.