Barnard, James

James Barnard is a Global Pratice andTrchnology Leader with Black & Veatch in Kansas City MO. He developed the Bardenpho and Phoredox (aka AO and A2O) processes and is more recently promoting the idea of side-stream fermentation of RAS or mixed liquor for more reliable EBPR and nitrogen removal. He served on advisory committees for New York, DCWater, Greater Chicago and.Los Angeles. He is a WEF Fellow, a Distinguished member of ASCE, Senior Fellow of the IWA and a recipient of the Lee Kuan Yew International Singapore Water Prize and theWEF Camp Award

Titles from this speaker

Conversion of the 27mgd McAlpine Treatment Plant to Biological Phosphorus Removal

Abstract

Side-stream enhanced biological phosphorus removal (S2EBPR) was tested at full-scale at the McAlpine plant in Charlotte NC, USA by converting the equivalent of two out of fifteen plug-flow aerations basins to sidestream fermenters, feeding it with ten percent of the RAS combined with gravity thickener overflow. The outcome showed that a volume fraction of ten percent of the total activate sludge treatment volume was sufficient to allow an anaerobic solids retention time (SRT) of 1.5 to 2 days for reducing phosphorus from around 5 mg/L to less than 0.2 mg/L orthophosphates as P. Some shortcomings with the temporary arrangements showed up with high flows but these will be rectified with an upgraded interim fermenter. Chemical savings of around $250,000 per year were indicated.

SpeakerBarnard, James

Presentation time

13:30:00

13:50:00

Session time

13:30:00

15:30:00

SessionWhat's Brewing? Advancements in EBPR

Session number412

TopicFacility Operations and Maintenance, Municipal Wastewater Treatment Design, Nutrients, Research and Innovation

Author(s)

J.L. Barnard