Dilaver Mehmet, Kargi Fikret
Department of Environmental Engineering, Dokuz Eylul University, Buca, Izmir, Turkey.
Bioresour Technol. 2009 Feb;100(3):1459-62. doi: 10.1016/j.biortech.2008.07.054. Epub 2008 Sep 7.
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%.
采用由填充柱生物膜反应器（PCBR）和带流出物循环的曝气池组成的混合环流生物反应器系统对含2,4-二氯苯酚（DCP）的合成废水进行生物处理。研究了进水DCP浓度对化学需氧量（COD）、DCP和毒性去除的影响。由于DCP对微生物的毒性作用，填充柱和曝气池中的生物量浓度随着进水DCP含量的增加而降低。高DCP含量下的低生物量浓度导致COD、DCP和毒性去除率较低。因此，DCP、COD和毒性去除率随着进水DCP含量的增加而降低。进水DCP含量为380 mg L(-1)时，COD去除率接近70%。为了使DCP、COD和毒性去除率高于90%，该系统应以低于100 mg L(-1)的进水DCP运行。
Zotero 插件