Webinar: Case Studies: Struvite Recovery for Phosphorus Removal and Recovery at Wastewater Treatment Plants - Dec. 6

Join us for a webinar on Dec 06, 2016 at 12:00 PM Pacific

Sponsored by PNCWA Emerging Technology Committee

No cost for PNCWA members, PNCWA Section members, and WEF-UPP organization employees; .1 CEUs requested; $50 for nonmembers

Struvite, or magnesium ammonium phosphate, is a crystalline material that is often formed downstream of anaerobic digestion processes, where abundant nitrogen, magnesium, and phosphorus is present and pH is raised due to CO2 stripping, which results from pumping or other turbulences. Uncontrolled struvite formation is typically viewed as a maintenance problem; until recently, as technologies have emerged that precipitate struvite in a controlled manner to recover phosphorus, allowing the plants to achieve low phosphorus limits, and simultaneously remove a fraction of the sidestream nitrogen.

This webinar highlights and provides the updates on full-scale implementations of two representative struvite recovery technologies in the Pacific Northwest, the Ostara Nutrient Recovery Technology implemented at the Clean Water Services’ wastewater treatment facilities (WWTFs) in Oregon, and the Multiform P- Recovery System implemented at the West Boise WWTF of City of Boise, Idaho.

This webinar completes the side stream webinar series started in 2015. Continue Reading

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PNCWA Spotlight

Meet PNCWA's 2016-2017 Board of Directors

President John Phillips (King County) leads PNCWA's 2016-2017 Board of Directors, which includes President-Elect David Keil (WR2); Vice President Jim Baird (RUSA); immediate Past President Shannon Ostendorff (City of Bend OR); Secretary Court Harris (CH2M); Treasurer Steven Drangsholt (Brown and Caldwell); WEF Director Haley Falconer (City of Boise ID); WEF Director Kevin Dour (Tetra Tech); ID Regional Director Shawn Moffitt (CH2M—Twin Falls), OR Regional Director Jeff Brown (City of Pendleton OR); W WA Regional (HDR Engineering); E WA Regional Director Adam MyClymont (CH2M—Spokane Valley). Nan Cluss and Michael Rainey are PNCWA Managers. Continue reading


PNCWA Water Blog. Timely issues about water quality.

Basia Irland, excerpt from the National Geographic's Water Currents blog.