TREATING METHOD OF WASTE WATER OF DEVELOPMENT PEELING FROM ALKALI DEVELOPMENT TYPE PHOTOSENSITIVE FILM

摘要

PURPOSE:To provide the treating method of the waste water of development peeling from the alkali development type photosensitive film, in order to make the waste water low in water content of a sludge and improved in the separating property from a treated water. CONSTITUTION:In the treating method of the waste water of development peeling from the alkali development type photosensitive film, the mixed liq. 2 in which an flocculant aid 12 and an acidic reagent 11 are added to the waste water of development peeling 1 from the alkali development type photosensitive film is heated to start a flocculation reaction, then, the mixed liq. 2 after the flocculation reaction is separated to the sludge 3 and the treated water 4 by a solid-liquid separation device 7.