Firm develops Innovative Approach to treating oxidant-laden residual streams

摘要

Magna Water Company, which serves potable water to approximately 28,000 customers in the northwest section of Salt Lake County, Utah, USA, is partially supplied by groundwater that's impacted by perchlorate, arsenic, and total dissolved solids (TDS). A six-month pilot study conducted by Carollo Engineers in 1999-2000 showed that due to the presence of high silica and sulfate levels in the groundwater, electrodialysis reversal (EDR) would be the most feasible treatment alternative for Magna. EDR is a separation-based process in which an electrical potential drives charged species (e.g., perchlorate, arsenic, TDS) across ion-selective membranes, thereby removing them from the raw water.