Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8851847 | Chemosphere | 2018 | 10 Pages |
Abstract
This study focuses on the effects of organic loading rate (OLR) on the removal of N,N-Dimethylformamide(DMF), m-Cresol (MC) and isopropyl alcohol (IPA) by a pilot-scale anaerobic membrane bioreactor (AnMBR) for treating chemical synthesis-based antibiotic solvent wastewater at period of improved influent COD concentration with decreased HRT. The whole process was divided into five stages in terms of the variation of OLR ranging from 3.9 to 12.7â¯kg COD/(m3·d). During 249 days of operating time, the average DMF, MC, IPA removal efficiency were 96.9%,98.2% and 96.4%, respectively. Cake layer was accumulated on the membrane surface acted as a dynamic secondary biofilm which lead to the increase of physical removal rate. In addition, mathematical statistical models was built on the linear regression techniques for exploring the inner relationship between EPS and the performance of the AnMBR.
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Authors
Zhaobo Chen, Haiyan Su, Dongxue Hu, Fuquan Jia, Zhenghai Li, Yubo Cui, Chunqiu Ran, Xiaojing Wang, Jiao Xu, Tingting Xiao, Xue Li, Haixu Wang,