METHOD AND DEVICE FOR TREATING ORGANIC WASTE

摘要

PROBLEM TO BE SOLVED: To execute denitrification without adding expensive methanol as a nutrition source necessary for denitrification treatment by denitrifying bacteria. SOLUTION: Organic waste is subjected to microorganism treatment in a fermentation decomposition tank 3. Ammonia gas generated at this time is nitrified in a nitrification tank 17 and then denitrified in a denitrification tank 18 by a biological deodorization system. Waste liquid 14 generated in the fermentation or a crushing treatment of the organic waste is supplied to the denitrification tank through a waste liquid supply pipe 15 as the nutrition source for the denitrifying bacteria without adding the nutrition source such as methanol.