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Bacterial Degradation of Monoethanolamine  

Hyun, Jun-Taek (Department of Energy and Environmental Engineering Soonchunhyang University)
Rhee, In-Hyoung (Department of Energy and Environmental Engineering Soonchunhyang University)
Kwon, Sung-Hyun (Department of Marine Environmental Engineering, Inst. of Marine Industry, Gyeonsang National University)
Kim, Dong-Jin (Department of Environmental & Bioengineering, Hallym University)
Cho, Dae-Chul (Department of Energy and Environmental Engineering Soonchunhyang University)
Publication Information
KSBB Journal / v.22, no.3, 2007 , pp. 157-161 More about this Journal
Abstract
This study is to investigate the biological degradation and the characteristics of MEA, a pH regulator to be put in the cooling water circulation system for power plants, loading to elevate concentrations of COD and N when eluted into the water environment. MEA, $NH_4^+$ and CODcr were monitored in flask cultures and in a batch aerator. MEA was found to be biologically degradable, producing substantial amount of ammonia (max. 78.1%) in a form of $NH_4^+$ and other carboneous intermediates. The degradation reaction rates were similar one another over all MEA concentrations tested as the activated sludge (microbial consortium) was acclimated to MEA with the gradual and stepwise increase in MEA input into the batch aerator. Also, MLVSS kept increasing with increasing MEA input. The COD-based degradation reaction order was determined to be 1.
Keywords
Monoethanolamine; Activated Sludge; P. aeruginosa; Biodegradation; CODcr$NH_4^+$; MLVSS;
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