Full Description

To meet the anticipated requirements of the Stage II Disinfectant/Disinfection Byproducts Rule (D/DBPR),the Cobb County-Marietta Water Authority conducted a pilot study at the Hugh A. Wyckoff WaterTreatment Plant (WTP) to examine the effects of ozone/biofiltration, chlorine dioxide preoxidation, magneticion exchange (MIEX), and post-filter nanofiltration (NF) on the removal of disinfection byproduct (DBP)precursor material. The study showed that ozone/biofiltration was ineffective in reducing totaltrihalomethane (TTHMFP) and haloacetic acid formation potential (HAA5FP), and that chlorine dioxidepreoxidation would be sufficient to meet the Stage I D/DBPR requirements. The MIEX and post-filter NFalternatives demonstrated incremental improvement in the removal that was already being achieved byconventional treatment; therefore, MIEX and post-filter NF were examined further as options to ensure thatthe Authority can achieve the Stage II requirements.The two treatment alternatives were then compared to determine which would be the best alternative toimplement at the Wyckoff WTP. The examination included both economic and non-economic factors,including construction cost, operations and maintenance (O

Product Details

Edition: Vol. - No. Published: 06/17/2004 Number of Pages: 20File Size: 1 file , 560 KB