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The Use of Activated Carbon as a Polishing Step for Treatment of Industrial Plating Wastewaters

by Young Ku, Purdue Univ, Sch of Civil, Engineering, West Lafayette, IN, USA,
Robert W. Peters, Purdue Univ, Sch of Civil, Engineering, West Lafayette, IN, USA,



Document Type: Proceeding Paper

Part of: Environmental Engineering

Abstract:

An activated carbon adsorption process was utilized as a polishing step following the precipitation (hydroxide or sulfide) process. Zinc and cadmium were the metals studied. Since plating is commonly done in either a cyanide or ammonia bath, these were the two systems investigated. The effect of factors such as pH, activated carbon type, metal concentration, carbon dosage, and the presence of interferences (cyanide and ammonia) was examined.

Subject Headings: Industrial wastes | Activated carbon | Water pollution | Ammonia | Zinc | Water treatment | Wastewater management

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