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http://dx.doi.org/10.11626/KJEB.2016.34.1.048

Effect of Effluent Organic Matters on Estrogenic Activity Reduction of Bisphenol A by Photolysis  

Yoo, Jisu (Division of Environmental Science & Ecological Engineering, Korea University)
Na, Joolim (Division of Environmental Science & Ecological Engineering, Korea University)
Jung, Jinho (Division of Environmental Science & Ecological Engineering, Korea University)
Publication Information
Korean Journal of Environmental Biology / v.34, no.1, 2016 , pp. 48-55 More about this Journal
Abstract
This study investigates the effect of effluent organic matter (EfOM) from sewage wastewater treatment plants on estrogenic activity reduction of bisphenol A (BPA) by UV photolysis. The EfOM and Suwannee River natural organic matter (SR-NOM) as reference were isolated into hydrophobic (HPO), transphilic (TPI) and hydrophilic (HPI) fractions depending on polarity. The specific ultraviolet absorbance (SUVA) analysis indicated that EfOM showed similar properties to microbially derived organic matters with low hydrophobicity, which is different from SR-NOM having high hydrophobicity. UV irradiation upto 3 hr significantly reduced SUVA values of both EfOM and SR-NOM (p<0.0001), depending on the polarity of organic matters. In the absence of organic matters, the relative estrogenic activity (REA) of BPA ($5.0{\times}10^{-5}M$) was decreased from 86% to 63% by UV photolysis (2 hr). However, the decrease of mean REA was from 68% to 37% in the presence of organic matters, which was significantly independent on the type (EfOM or SR-NOM) and polarity (HPO, TPI or HPI) of organic matters (p>0.05). As a result, the reduced REA by UV photolysis of BPA with and without organic matters was 31% and 23%, respectively, suggesting that both EfOM and SR-NOM accelerated the photolytic reduction of BPA estrogenic activity.
Keywords
bisphenol A; effluent organic matter; estrogenic activity; sewage wastewater;
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Times Cited By KSCI : 5  (Citation Analysis)
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