کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
686150 | 889062 | 2009 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: 2,4-Dichlorophenol (DCP) containing wastewater treatment using a hybrid-loop bioreactor 2,4-Dichlorophenol (DCP) containing wastewater treatment using a hybrid-loop bioreactor](/preview/png/686150.png)
Synthetic wastewater containing 2,4-dichlorophenol (DCP) was biologically treated using a hybrid-loop bioreactor system consisting of a packed column biofilm reactor (PCBR) and an aerated tank with effluent recycle. Effects of the feed DCP concentration on COD, DCP and toxicity removals were investigated. Biomass concentration in the packed column and in the aeration tank decreased with increasing feed DCP content due to toxic effects of DCP on the microorganisms. Low biomass concentrations at high DCP contents resulted in low COD, DCP and toxicity removals. Therefore, percent DCP, COD and toxicity removals decreased with increasing feed DCP content. Nearly 70% COD removal was achieved with a feed DCP content of 380 mg L−1. The system should be operated with the feed DCP lower than 100 mg L−1 in order to obtain DCP, COD and toxicity removals above 90%.
Journal: Bioresource Technology - Volume 100, Issue 3, February 2009, Pages 1459–1462