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Cho, Jaeweon
OWIELAB(Organic-Water Interface Engineering Laboratory)
Research Interests
  • Convergence of Science and Arts, Feces Standard Money (FSM), Water & Energy

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Evaluating controllability of pharmaceuticals and metabolites in biologically engineered processes, using corresponding octanol-water distribution coefficient

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Title
Evaluating controllability of pharmaceuticals and metabolites in biologically engineered processes, using corresponding octanol-water distribution coefficient
Author
Lee, SungyunKang, Su-IlLim, Jae-LimHuh, Yu JeongKim, Kap-SoonCho, Jaeweon
Keywords
Carbamazepine; Constructed wetland; Metabolites; Octanol-water partition coefficient; Pharmaceuticals
Issue Date
2011-10
Publisher
ELSEVIER SCIENCE BV
Citation
ECOLOGICAL ENGINEERING, v.37, no.10, pp.1595 - 1600
Abstract
The efficiency of removing 9 different pharmaceuticals, 5 carbamazepine metabolites, and 1 personal care product through wastewater treatment plants and constructed wetlands was investigated. The compound concentrations were measured using solid phase extraction followed by liquid chromatography quadrupole tandem mass spectrometry. For extraction confirmation and better accuracy, isotopic dilution and standards addition methods were employed. The reporting limits for the investigated compounds were less than 10 ng/L except TCEP (24 ng/L). The removal efficiencies were found to be inversely proportional to the octanol-water partition coefficients (log K(ow)) after modification with ionizable functional groups (log D(ow)); compounds with a higher hydrophilicity were more efficiently removed in the engineered processes through biological treatment mechanisms. Carbamazepine metabolites that were formed in the early stages of certain metabolic reactions exhibited enhanced removal efficiencies due to a decreased log D(ow) values. However, the removal efficiency of those formed in later stages did not increase, but rather fluctuated with large standard deviations. The removal behaviors of metabolites in biologically operating engineered systems need to be more extensively examined. (C) 2011 Elsevier B.V. All rights reserved
URI
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DOI
10.1016/j.ecoleng.2011.04.007
ISSN
0925-8574
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UEE_Journal Papers
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