Impact of Nanoparticle Silver in a Sequencing Batch Reactor Removing Phosphorus and Ammonia
Publication: Journal of Environmental Engineering
Volume 141, Issue 7
Abstract
The effect of nanoparticle silver (AgNP) in a sequencing batch reactor (SBR) removing phosphorus and ammonia was analyzed. The amount of of AgNP did not significantly change the soluble chemical oxygen demand or specific oxygen uptake rates during the batch tests. Furthermore, of AgNP had no effect on phosphorus, ammonia, or chemical oxygen demand removal during continuous dosing. Analysis by inductively coupled plasma-mass spectrometry determined that the lab-scale SBR removed over 80% of influent AgNP during continuous dosing. It was also determined that the North End Water Pollution Control Centre in Winnipeg, Canada, removed just under 50% of influent AgNP, and that half of the reduction occurred before secondary treatment.
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Acknowledgments
Dr. Panseok Yang from the Department of Geological Sciences at the University of Manitoba is gratefully acknowledged for his help with the analysis of AgNP by ICP-MS. The Natural Sciences and Engineering Research Council of Canada is acknowledged for making this work possible through the USRA program.
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Published In
Journal of Environmental Engineering
Volume 141 • Issue 7 • July 2015
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Aug 19, 2014
Accepted: Dec 12, 2014
Published online: Jan 21, 2015
Discussion open until: Jun 21, 2015
Published in print: Jul 1, 2015
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