reclaimed water production method and reclaimed water production system,

摘要

Regular abundant ozone while without needing, preventing the blockade of the membrane surface low at cost, stabilizing from draining, it offers playback water production method, and the playback water manufacturing system which can obtain the playback water. At the time of normal mode, at ozonator 3 throwing the ozone which it occurs to the raw water, ozone it processes the raw water, before the ozonation, or afterwards, fills the coagulant to the raw water, after the fill of the ozonation and the coagulant, it includes the process which does the membrane filtration by the separated membrane 8 of the raw water. It is the method of washing the filtration film by and making washing mode intermittently, that washing mode time, it throws the ozone for washing which is more than at the time of normal mode to the raw water and raises dissolved ozone density intermittently.