Two tanks are used for the spray rinsing. Evaporation losses are supplemented with water from the first rinsing tank.
Regeneration is achieved by ultrafiltration and the freezing out of soda.
Metals are recovered by electrolysis. No new materials or additional wastes were mentioned. The stabilization of the process parameters has a positive effect on product quality. This corresponds to 1100 m2 of nickel plating and 120 m2 of acid tin plating per day. No further details were given.