Degradation of 1-Naphthylamine by Activated Sludge Using Bioaugmentation

by Roger W. Babcock, Jr., Univ of California Los Angeles, Los Angeles, United States,
Chu-Chin Hsieh, Univ of California Los Angeles, Los Angeles, United States,
Chwen-Jeng Tzeng, Univ of California Los Angeles, Los Angeles, United States,
Kyoung S. Ro, Univ of California Los Angeles, Los Angeles, United States,
Michael K. Stenstrom, Univ of California Los Angeles, Los Angeles, United States,



Document Type: Proceeding Paper

Part of: Environmental Engineering

Abstract: This paper presents the results of ongoing research using a novel bioaugmentation scheme for activated sludge (AS) treatment of trace levels of a hazardous compound (1-Naphthylamine, 1NA). An enrichment culture capable of rapidly degrading 1NA was first developed and then utilized to inoculate several 14-L conventional continuous-flow AS reactors. Doses of inocula as percent by mass of cells added to indigenous biomass are correlated to improvements in treatment performance (decreases in target compound breakthrough).

Subject Headings: Chemical degradation | Activated sludge | Hazardous materials | Biomass | Wastewater treatment | Organic matter

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