Original Paper
DOI : https://doi.org/10.4491/KSEE.2014.36.12.858

J Korean Soc Environ Eng. 2014; 36(12): 858-864.

Published online 2014 December 31.

doi: https://doi.org/10.4491/KSEE.2014.36.12.858

Biodegradation of Synthetic Fragrances in Biological Activated Carbon (BAC) Process : Biodegradation Kinetic

Chang-Dong Seo¹, Hee-Jong Son¹, Dong-Choon Ryu¹, So-Won Kang², and Seong-Ho Jang³

¹Water Quality Institute, Water Authority, Busan
²Department of Bio-chemical Engineering, Friedrich-Alexander University
³Department of Bioenvironmental Energy, Pusan National University

Corresponding Author: Email: menuturk@hanmail.net

Received 2014 November 12;    Accepted 2014 December 30.

In this study, The effects of empty bed contact time (EBCT) and water temperature on the biodegradation of 8 synthetic fragrances (SFs) 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 SFs in BAC column. Pentalide and ambrettolide were the highest biodegradation efficiency, but DPMI and ADBI were the lowest. The kinetic analysis suggested a pseudo-first-order reaction model for biodegradation of 8 SFs at various water temperatures and EBCTs. The pseudo-first-order biodegradation rate constants (kbio) of 8 SFs ranging from 0.1184~0.6545 min-1 at 7℃ to 0.3087~0.9173 min-1 at 18℃. By increasing the water temperature from 7℃ to 18℃, the biodegradation rate constants (kbio) were increased 1.4~2.6 times.

Keywords : Synthetic Fragrances (SFs), Biological Activated Carbon (BAC) Process, Water Temperature, Empty Bed Contact Time (EBCT), Biodegradation Kinetic