Taiwan's arsenic concerns arise from the use of groundwater as the source of drinking water in the southwestern part of the island country. Taiwan adopts a stringent regulation for management and control of arsenic in water-setting limits of arsenic concentrations of 50 �g/L and 10 �g/L for source water and drinking water, respectively. This research evaluated the removal of arsenic(III) in a electrocoagulation reactor with separated anode and cathode.  The materials used for the electrodes were iron and aluminum.  The results indicated arsenic removal efficiency in the cathode was higher than in the anode using aluminum as the electrodes.  This is attributed to the high pH in the cathode. On the other hand, the arsenic removal efficiency in the anode was higher than in the cathode when iron was used as the electrodes.  This suggests the removal of arsenic is related to the ferrous iron in the solution.

Removal of arsenic by electrocoagulation in reactor with separated anode and cathode

245th National Meeting (2013)

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