AWWA JAW19887

Recent work in surface chemistry gives fresh insight into the rate of many processes in water treatment that are subject to chemical control and offers a clearer framework for predicting behavioral differences resulting from changes in master variables such as pH. Processes of interest in water treatment involving surface-chemical reactions that can be treated in this manner include dissolution, precipitation, coagulation, deposition, and surface catalysis. A common chemical step in these processes is complexation at the solid-liquid interface -- attachment of a specific chemical species onto a surface of defined composition. Includes 45 references, tables, figures.