电化学
流出物
吸附
化学工程
再生(生物学)
活性炭
电极
材料科学
污染物
碳纤维
制浆造纸工业
化学
环境工程
环境科学
复合材料
有机化学
工程类
复合数
物理化学
细胞生物学
生物
作者
Hong Sun,Zhigang Liu,Ying Wang,Yansheng Li
标识
DOI:10.1016/s1001-0742(14)60630-6
摘要
Electrochemical in situ regeneration of granular activated carbon (GAC) saturated with phenol was experimentally investigated using a three-dimensional electrode reactor with titanium filter electrode arrays. The feasibility of the electrochemical regeneration has been assessed by monitoring the regeneration efficiency and chemical oxygen demand (COD). The influence of the applied current, the effluent flow rate, and the effluent path of the electrochemical cell have been systematically studied. Under the optimum conditions, the regeneration efficiency of GAC could reach 94% in 2 hr, and no significant declination was observed after five-time continuous adsorption-regeneration cycles. The adsorption of organic pollutants was almost completely mineralized due to electrochemical oxidation, indicating that this regeneration process is much more potentially cost-effective for application.
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