COOLANT REGENERATING TREATMENT EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To provide a coolant regenerating treatment equipment for reducing the regenerating expense of ion exchange resin and feeding inexpensively recycled coolant. SOLUTION: A coolant regenerating treatment equipment is provided with filters 3 (a first filter 3a and a second filter 3b) as a regenerating treatment means for regenerating-used waste coolant stored in a used coolant storage container 13, a reverse osmosis membrane 5 and ion exchange resin 6. Pollutants are removed and regenerated coolant formed of ethylene glycol and waste is recovered into a recovered liquid recovery tank 14. A selector valve 7 is disposed on a flow path formed from the reverse osmosis membrane 5 to the ion exchange resin 6. Used coolant of clear nature is changed over to a flow path to a regenerated liquid recovering vessel 14 bypassing the ion exchange resin 6, while used coolant of unclear nature is changed over to a flow path to the regenerated liquid recovering vessel 14 through the ion exchange resin 6.