Presentations by Wyatt Won
Innovative Approaches to Optimizing Sulfuric Acid Consumption at West Basin MWD
The reduction of pH with acid is commonly used to prevent inorganic salts from scaling RO membranes. Because there is not yet available a proven anti-scalant to effectively inhibit calcium phosphate scaling, West basin doses sulfuric acid to a pH of 6.3 before the RO membranes. Rising costs of acid have led to the need for an optimization of acid u...
This presentation provides an overview of pre-treatment strategies for the West Basin Municipal Water District. At this district, recycling/reuse of secondary effluent has been taking place since 1995. The typical pre-treatment processes are described and a list of process challenges and regulatory constraints are presented....