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Evaluation of a Tertiary Membrane Filter Demonstration Pilot to Achieve Ultra-Low Effluent Phosphorus Concentrations

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Due to the increasing number of treatment plants facing stringent nutrient limits, a greater understanding of technologies capable of achieving ultra-low effluent total phosphorus (TP) concentrations is needed. The City of Coeur d'Alene is preparing to upgrade its wastewater treatment plant to meet a draft NPDES permit of 0.036 mg/L effluent TP. Previously tested in a small scale pilot in 2006, the tertiary membrane filter was selected as part of a two year intensive low phosphorus demonstration program. Results show that the TMF system reliably produced effluent quality of less than 0.036 mg/L TP on a monthly average basis.

Keywords: low phosphorus; phosphorus removal; tertiary membrane filtration; ultrafiltration

Document Type: Research Article


Publication date: January 1, 2011

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