The influence some factors play in nickel recovery from used galvanic waters by using purolite C 150 ion exchanger

This paper presents some aspects regarding the ion exchange recovery-treatm ent of used galvanic waters resulting from nickel plated parts washing, usi ng, a strongly acid ion exchanger of Purolite C 150 type. The experimental part deals with the working, conditions and the resin characteristics, it f acilitated rendering evident the influence upon the resin maximum exchange capacity of the following factors: flow rate, concentration, temperature an d pH of the processed solution. Based on the experimental data thus got, we proposed a simplified technological variant for the recovery-treatment of the galvanic washing waters, by using only one cationic step.