Effects of pilot-plant photochemical pre-treatment (UV/H2O2) on the biodegradability of aqueous linear alkylbenzene sulfonate (LAS)

被引：17
作者：
Mehrvar, M
Tabrizi, GB
Abdel-Jabbar, N
机构：
[1] Ryerson Univ, Dept Chem Engn, Toronto, ON M5B 2K3, Canada
[2] Jordan Univ Sci & Technol, Dept Chem Engn, Irbid 22110, Jordan
来源：
INTERNATIONAL JOURNAL OF PHOTOENERGY | 2005年 / 7卷 / 04期
关键词：
D O I：
10.1155/S1110662X05000255
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effects of the photochemical pre- treatment by using a pilot- plant UV/ H2O2 process on the biodegradability of aqueous linear alkylbenzene sulfonate ( LAS) were studied. It was observed that the photochemical pre- treatment of the LAS solutions by UV- 254/ H2O2 increased the biodegradability of LAS solutions. Aqueous solutions with higher concentrations of LAS (> 100mg/ L) were non- biodegradable. The ratio of BOD5/ COD of the pre- treated LAS solutions was increased, indicating that the pre- treated LAS solutions were more biodegradable. This ratio was improved as the LAS solutions were more pre- treated. Also, the biodegradability factor for the pre- treated LAS solutions was increased as the time of the photochemical pre- treatment was increased.
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页码：169 / 174
页数：6
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