EVALUATION OF LEAD AND COPPER CORROSION CONTROL TECHNIQUES

The University of South Carolina has been involved in numerous studies to evaluate lead and copper corrosion control strategies for low hard ness, low alkalinity waters found in South Carolina. This article disc usses the results of three batch studies where the effects of pH and a lkalinity adjustment, phosphate inhibitor addition, and silicate inhib itor addition on lead and copper corrosion mitigation were investigate d. These studies indicate that all of these strategies reduce lead cor rosion. Phosphate inhibitor addition, and pH and alkalinity adjustment were more effective than silicate inhibitor addition for the water qu ality investigated.