BIOLOGICAL PURIFICATION TREATMENT METHOD OF SEWAGE FROM CATTLE HOUSE USING WHITE DISTILLED LIQUOR PRODUCTION WASTE LIQUID

摘要

PPROBLEM TO BE SOLVED: To develop a biological treatment method which enables the biological treatment of cattle house sewage containing much of nitrogen content and Shochu (white distilled liquor) lees easily and effectively. PSOLUTION: A biological purification treatment method of sewage for treating cattle house sewage as water to be treated has the membrane separation activated sludge process employed to carry out a biological oxidation treatment in the water to be treated, and a denitrification process by using a fluidized-bed type anaerobic water treatment apparatus which treats nitrate nitrogen thereafter. In this biological purification treatment method of sewage from a cattle house using a Shocu production waste liquid, after the organic matter treatment and the nitrogen oxidation treatment in the membrane separation activated sludge process, condensed liquid of Shochu lees is added to the treated water to be treated, an organic matter is replenished to increase the number of denitrifying bacteria in the apparatus, and nitrate nitrogen is treated in the denitrification process. PCOPYRIGHT: (C)2009,JPO&INPIT