지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
This study demonstrates the oxidative degradation of pharmaceutical compounds during ozonation of surface waters in Ulsan. Diclofenac, carbamazepine, bezafibrate, and ibuprofen were selected as surrogate pharmaceutical compounds, and ozonation experiments were performed using raw waters collected from the Sayeon Dam and the Hoeya Dam in Ulsan. Diclofenac and carbamazepine which have high reactivity with molecular ozone showed higher removal efficiencies than bezafibrate and ibuprofen during ozonation. The addition of tert-butanol, a hydroxyl radical scavenger, increased the removal efficiencies of diclofenac and carbamazepine by increasing the ozone exposure. However, the oxidation of bezafibrate and ibuprofen was inhibited by the presence of tert-butanol due to the suppression of the exposure to hydroxyl radical. The elimination of the selected pharmaceuticals could be successfully predicted by the kinetic model base on the $R_{ct}$ concept. Depending on the experimental condition, $R_{ct}$ values were determined to be $(1.54{\sim}3.32){\times}10^{-7}$ and $(1.19{\sim}3.04){\times}10^{-7}$ for the Sayeon Dam and the Hoeya Dam waters, respectively. Relatively high $R_{ct}$ values indicate that the conversion of $O_3$ into $^{\cdot}OH$ is more pronounced for surface waters in Ulsan compared to other water sources.
목차
등록된 정보가 없습니다.
참고문헌 (23)
참고문헌 신청
Bader, H. / 1982 / Determination of ozone in water by the indigo method. – A submitted standard method / Science and Engineering 4(4):169~176
Broseu s, R. / 2009 / Ozone oxidation of pharmaceuticals, endocrine disruptors and pesticides during drinking water treatment / Water Research 43(18):4707~4717
Buxton, G. V. / 1988 / Critical-review of rate constants for reactions of hydrated electrons, hydrogen-atoms and hydroxyl radicals (·OH/·O-) in aqueous-solution / Journal of Physical and Chemical Reference Data 17(2):513~886
Chelme-Ayala, P. / 2011 / Oxidation kinetics of two pesticides in natural waters by ozonation and ozone combined with hydrogen peroxide / Water Research 45(8):2517~2526
Cho, M. / 2003 / Investigation of ozone reaction in river waters causing instantaneous ozone demand / Ozone: Science and Engineering 25(4):251~259
Broseu s, R. / 2009 / Ozone oxidation of pharmaceuticals, endocrine disruptors and pesticides during drinking water treatment / Water Research 43(18):4707~4717
Buxton, G. V. / 1988 / Critical-review of rate constants for reactions of hydrated electrons, hydrogen-atoms and hydroxyl radicals (·OH/·O-) in aqueous-solution / Journal of Physical and Chemical Reference Data 17(2):513~886
Chelme-Ayala, P. / 2011 / Oxidation kinetics of two pesticides in natural waters by ozonation and ozone combined with hydrogen peroxide / Water Research 45(8):2517~2526
Cho, M. / 2003 / Investigation of ozone reaction in river waters causing instantaneous ozone demand / Ozone: Science and Engineering 25(4):251~259
이 논문의 저자 정보
최근 본 자료
댓글(0)
0