SEWAGE TREATING METHOD AND SYSTEM, AND CONTINUOUS EXPANSION CULTURING APPARATUS USED FOR THE SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a sewage treating method and a system and a continuous expansion culturing apparatus used for it, by which sufficient organic matter decomposing capacity maintained over a long period of time, and sludge and an odor can be reduced.

SOLUTION: The sewage treating system is provided with an aeration tank 3 storing temporarily sewage and treating the sewage by reacting organic matter contained in the sewage with effective microorganism groups; and the continuous expansion culturing apparatus 4 continuously culturing the effective microorganism groups and charging the effective microorganism groups into the sewage in the aeration tank 3 for a plurality of times according to a program set in advance.

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