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Nutrient Recovery: One Million Pounds Recovered - With Benefits

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The first full scale struvite nutrient recovery installation in North America became operational in May, 2009 at the Clean Water Service's (CWS) Durham Advanced Wastewater Treatment Plant in Tigard, Oregon. After two years of operation over one million pounds (455,000 kgs) of struvite was recovered. Recovering ammonia and phosphorus from the anaerobically digested sludge dewatering centrate as struvite had a positive impact on plant operations, reducing the amount of chemicals needed and reducing both tons of biosolids generated and the phosphorus content of the biosolids in addition to generating revenue from the sale of the struvite.
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Keywords: EBPR; Ostara; Struvite; WASSTRIP™; magnesium ammonium phosphate; nutrient recovery

Document Type: Research Article

Publication date: 2011-01-01

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