TREATMENT METHOD OF WASTE LIQUID FROM SODIUM HYDROXIDE TREATMENT OF ALUMINUM MATERIAL AND METHOD OF MANUFACTURING PRODUCT DERIVED FROM THIS WASTE LIQUID

摘要

PROBLEM TO BE SOLVED: To provide a treatment method of a waste liquid from sodium hydroxide treatment of aluminum material which can separate and recover aluminum hydroxide from etching the waste liquid at a low cost in a short time.;SOLUTION: In the method of treating the waste liquid generated by treating an aluminum material with a solution containing sodium hydroxide as a main component, carbon dioxide gas is blown into the waste liquid to recover the converted aluminum hydroxide and sodium carbonate.;COPYRIGHT: (C)2009,JPO&INPIT