SYSTEM FOR RECYCLING DYEING WASTEWATER BY ROTARY MEMBRANE SEPARATOR, DRUM TYPE MEMBRANE SEPARATOR, UF MEMBRANE SEPARATOR FOR HIGH TEMPERATURE AND NANO/REVERSE OSMOSIS MEMBRANE SEPARATOR FOR HIGH TEMPERATURE

摘要

PURPOSE: To provide a dyeing wastewater recycling system by membrane separation for high temperature, the system for reducing waste matter and various chemicals used in an existing dyeing wastewater treatment process, using treated water as washing water for dyeing process and supply water of boiler and recovering high temperature of dyeing wastewater. CONSTITUTION: The dyeing wastewater recycling system by membrane separation comprises a rotary membrane separator(5) or a drum type membrane separator(6) into which the dyeing wastewater is supplied by passing through a raw wastewater screen(3) and a fine screen(4) for removing miscellaneous materials after dyeing wastewater generated from the dyeing process is stored in a wastewater collection tank(2); a multilayer filter(11) and a precision filter for safety(12) into which wastewater treated by the rotary membrane separator or the drum type membrane separator is supplied through a pretreated water collection tank(8) by a pretreated water pump(9); a ultrafiltration membrane separator for high temperature(14) into which water passing through the precision filter for safety is supplied by a transfer pump(13) so that water passing through the ultrafiltration membrane separator is supplied to a permeable water collection tank(15), wherein the precision filter for safety is a backwashing type or disposable type precision filter; and a nano/reverse osmosis membrane separator for high temperature(17) into which water is supplied from the permeable water collection tank by a pressure increasing pump(16) so that the water passing through the nano/reverse osmosis membrane separator for high temperature is supplied to a recycling water collection tank(18).