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DBP and Hardness Control by Membrane Filtration

by Charles D. Turner, Univ of Texas at El Paso, El Paso, United States,
Srinivasa R. Kadubandi, Univ of Texas at El Paso, El Paso, United States,



Document Type: Proceeding Paper

Part of: Critical Issues in Water and Wastewater Treatment

Abstract:

Ultra (UF) and nanofiltration (NF) were evaluated for removal of disinfection by-product (DBP) precursors and hardness from Rio Grande water in New Mexico and Texas. In order to compare hardness and precursor removal at Elephant Butte Reservoir, New Mexico, and El Paso, Texas, pilot plant testing was conducted using membranes with selected molecular weight cutoffs (MWCs). All the UF and NF membranes removed hardness, but only the 600 and 1,000 MWC membranes removed DBP precursors successfully.

Subject Headings: Water treatment plants | Membranes | Hardness (material) | Filtration | Water treatment | Wastes | Nanomechanics | United States | New Mexico | Texas | Rio Grande

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