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AWWA WQTC62565
- Bench-Scale Magnetic Ion Exchange Practice for the Removal of Natural Organic Matter and Bromide from Estuarine Waters
- Conference Proceeding by American Water Works Association, 11/01/2005
- Publisher: AWWA
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The performance of a magnetic ion exchange resin (MIEX) in the removal of disinfection byproduct(DBP) precursors and natural organic matter (NOM) as dissolved organic carbon (DOC)and bromide ion (Br) was assessed for three estuarine waters reflecting a range of DOC and Br<sup>-</sup> concentrations.MIEX showed very rapid reaction kinetics and high ion-exchange capacity witha low dose and overall, provided 55-60% removal for DOC, 73-84% and 72-80% removal forbromide ion. Among the various competing anions examined, sulfate appeared to have thehighest removal rate as high as 97-99 % within 5 minutes. Humic and fulvic acids were wellremoved by MIEX treatment and comprise most of the DOC removal (55-60%). Includes 2 references, table, figures.