Electrochemical in situ regeneration of granular activated carbon using a three-dimensional reactor

被引：13
作者：
Sun, Hong [1 ]
Liu, Zhigang [1 ]
Wang, Ying [1 ]
Li, Yansheng [1 ]
机构：
[1] School of Environmental and oChemical Engineering, Dalian Jiaotong University
来源：
Liu, Z. (lzg@djtu.edu.cn) | 2013年 / Chinese Academy of Sciences卷 / 25期
关键词：
Electrochemical regeneration; Granular activated carbon; Phenol; Three-dimensional;
D O I：
10.1016/S1001-0742(14)60630-6
中图分类号：
学科分类号：
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. © 2013 The Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences.
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页码：S77 / S79
页数：2
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