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AWWA ACE70753
- Controlling TDS in a Water Reuse Application Using Membrane Processes
- Conference Proceeding by American Water Works Association, 11/01/2009
- Publisher: AWWA
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This powerpoint presentation begins by providing a brief overview of the Cache Creek Casino and DestinationResort, Rumsey, California that serves as an example of using a reuse application. Water supply challenges included high background total dissolved solids (TDS) levels concentratedby closed-loop reuse andlow wastewater effluent TDS limits. Characteristics of water usage, water sources, and water disposal are presented, along with Strategy 1 Wastewater Treatment -remove TDS from wastewater effluent, and Strategy 2 Groundwater Treatment -remove TDS from groundwater wells. Process candidates included: reverse osmosis (RO); lime softening; and, electrodialysis reversal (EDR). Brine rejection concentration and selection and implementation are outlined. Includes tables.
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