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EFFECT OF COPPER ON NITRIFYING AND HETEROTROPHIC POPULATIONS IN ACTIVATED SLUDGE

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Abstract:

The steady state effect of copper discharges on nitrification in bench-scale activated sludge treatment systems was investigated. The inhibitory effects of copper were evaluated by determining the changes in the performance of nitrifying and heterotrophic populations following the continuous addition of copper via influent wastewater. Comparison of nitrifiers' and heterotrophs' response to Cu suggested that nitrifiers were more sensitive to Cu than aerobic heterotrophs. In addition, shifts in microbial community structure in activated sludge receiving continuous dose of copper were monitored with fatty acid methyl ester (FAME) technique. Principal component analysis (PCA) FAME results showed that the continuous addition of Cu shifted community structure of activated sludges.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864702784162813

Publication date: January 1, 2002

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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