Biodegradation of Blood Lipid Lower Agents (BLLAs) in Biological Activated Carbon (BAC) Process
Year: 2017
Type: article
Abstract: In this study, We investigated the effects of water temperature and empty bed contact time (EBCT) on the biodegradability of 8 blood lipid lower agents (BLLAs) in biological activated carbon (BAC) process.Experiments were conducted at three water temperatures (8℃, 16℃ and 24℃) and three EBCTs (5 min, 10 min and 15 min).Increasing water temperature and EBCT increased the biodegradation efficiency of BLLAs in BAC process.Simvastatin and fenofibrate were the highest biodegradation efficiency, but atorvastatin and clofibric acid were the lowest.The kinetic analysis suggested a pseudo-first-order reaction model for biodegradation of 8 BLLAs at various water temperatures and EBCTs.The pseudo-first-order biodegradation rate constants (kbio) of clofibric acid and atorvastatin were 0.0075 min -1 and 0.0122 min -1 at 8℃, and were 0.0540 min -1 and 0.0866 min -1 at 24℃, respectively.By increasing the water temperature from 8℃ to 24℃, the biodegradation rate constants (kbio) were increased 7.1~7.2times.
Source: 대한환경공학회지
Language: English
Subfield: Pollution
Field: Environmental Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2729586992