期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 161, 期 2-3, 页码 1035-1039出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2008.04.091
关键词
Electrosorption; Pesticide; Electrochemical potential; Metribuzin; Water treatment
The present work deals with the removal of Metribuzin from aqueous solutions in a batch and continuous mode using electrosorption technique. This technique is based on the combination of two processes: the adsorption of Metribuzin into activated granular carbon (GAC) column and the application of the electrochemical potential. The effects of various experimental parameters (electrochemical potential, volumetric flow rate and initial Metribuzin concentration) on the removal efficiency were investigated. The pesticide sorption capacity at the breakthrough point of the GAC column reached 22 mg(pesticide) gGAC(-1). it was increased by more than 100% when the desired electrical potential (-50 mV/SCE) was applied in comparison with the conventional GAC column in similar experimental conditions without electrical potential. Evenmore, the electrosorption technique reduced considerably the drastic decrease encountered when passing from batch mode to continuous column mode. (C) 2008 Published by Elsevier B.V.
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