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J Korean Soc Environ Eng > Volume 36(11); 2014 > Article
J Korean Soc Environ Eng 2014;36(11): 739-746. doi: https://doi.org/10.4491/KSEE.2014.36.11.739
BAC 공정에서의 자외선 차단제 생물분해 특성 : 생물분해 동력학
서창동1, 손희종1, 정종문1, 최진택1, 류동춘1, 장성호2
1부산광역시 상수도사업본부 수질연구소
2부산대학교 바이오환경에너지학과
Biodegradation of UV Filters in Biological Activated Carbon (BAC) Process : Biodegradation Kinetic
Chang-Dong Seo1, Hee-Jong Son1, Jong-Moon Jung1, Jin-Taek Choi1, Dong-Choon Ryu1, Seong-Ho Jang2
1Water Quality Institute, Water Authority, Busan
2Department of Bioenvironmental Energy, Pusan National University
Corresponding author  Seong-Ho Jang ,Tel: 055-350-5435, Fax: 055-350-5439, Email: jangsh@pusan.ac.kr
Received: August 11, 2014;  Revised: October 28, 2014;  Accepted: November 17, 2014.  Published online: November 30, 2014.
In this study, The effects of empty bed contact time (EBCT) and water temperature on the biodegradation of 8 UV filters in biological activated carbon (BAC) process were investigated. Experiments were conducted at two water temperatures (7 and 18℃) and three EBCTs (5, 10 and 15 min). Increasing EBCT and water temperature increased the biodegradation efficiency of UV filters in BAC column. EHMC and BZC were the highest biodegradation efficiency, but BP and 4-MBC were the lowest. The kinetic analysis suggested a first-order reaction model for biodegradation of 8 UV filters at various water temperatures and EBCTs. The first-order biodegradation rate constants (kbio) of 8 UV filters ranging from 0.2730~0.6365 min-1 at 7℃ to 0.4824~ 0.8743 min-1 at 18℃. By increasing the water temperature from 7℃ to 18℃, the biodegradation rate constants (kbio) were increased 1.5~2.1 times.
Key Words: UV Filters, Biological Activated Carbon (BAC) Process, Biodegradation, Water Temperature, Empty Bed Contact Time (EBCT)
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