標題: Heterogeneous catalytic ozonation of 2-chlorophenol aqueous solution with alumina as a catalyst
作者: Ni, CH
Chen, JN
環境工程研究所
Institute of Environmental Engineering
關鍵字: ozonation;heterogeneous catalyst;alumina;2-chlorophenol;Microtox (R)
公開日期: 2001
摘要: Heterogenous catalytic ozonation of 2-chlorophenol (2-CP) in the presence of gamma -alumina as a solid catalyst has been investigated in this research. It showed that the rate for degradation of TOC could increase from 21% to 43%. The pseudo-first reaction constants of 2-CP could increase from 0.8688 min(-1) to 0.1270, increasing by approximately 40%. At the same time, the consumption of ozone was only half that of ozone alone. This research also explored the effects of the catalyst dosage, pH values and removal kinetics of 2-CP. In addition, three consecutive running with the same catalyst revealed insignificant reduction of the activity. Furthermore, the elimination of toxicity was evaluated by Microtox(R) analysis. The detoxification was more stable and with good results.
URI: http://hdl.handle.net/11536/29933
ISSN: 0273-1223
期刊: WATER SCIENCE AND TECHNOLOGY
Volume: 43
Issue: 2
起始頁: 213
結束頁: 220
Appears in Collections:Conferences Paper