Electrochemical in situ regeneration of granular activated carbon using a three-dimensional reactor
Hong Sun , Zhigang Liu
,
Ying Wang
,
Yansheng Li
DOI:
Received ,Revised , Accepted , Available online March 11, 2014
Volume ,2013,Pages S77-S79
- Summary
- References
- Related Articles
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.
