Chiavola A, McSwain B S, Irvine R L, Boni M R, Baciocchi R
Department of Hydraulics, Transportation and Roads. University of Rome La Sapienza, Rome, Italy.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2003;38(10):2113-23. doi: 10.1081/ese-120023338.
The present paper shows the results obtained through a study on the biodegradation of 3-chlorophenol (3-CP) in a Sequencing Batch Reactor (SBR). To such a purpose a lab-scale SBR was fed a synthetic wastewater containing 3-CP and nutrients (nitrogen and phosphorus) diluted in tap water. The operating strategy, in terms of both the duration of either the cycle or the react phase, was changed throughout the experimental activity in order to find out the optimal one allowing to ensure constant and high removal efficiency despite the increasing 3-chlorophenol concentration in the feed. Biomass collected from a full-scale continuous flow activated sludge facility treating domestic wastewater was used as seed, after being acclimated to 3-CP by means of several batch tests. The results showed that a periodically operated activated sludge system can be successfully used for the biodegradation of chlorophenol compounds, after the needed members of the microbiological consortium are selected and enriched.
本文展示了通过对序批式反应器（SBR）中3-氯酚（3-CP）生物降解的研究获得的结果。为此，在实验室规模的SBR中加入了含有3-CP和营养物质（氮和磷）且用自来水稀释的合成废水。在整个实验过程中，改变了周期或反应阶段的持续时间等操作策略，以找出尽管进料中3-氯酚浓度不断增加但仍能确保恒定且高去除效率的最佳策略。从处理生活污水的全尺寸连续流活性污泥设施收集的生物质，在通过几次批次试验适应3-CP后用作种子。结果表明，在选择和富集了微生物群落所需成员后，周期性运行的活性污泥系统可成功用于氯酚化合物的生物降解。
