Removal of arsenite using conventional and enhanced electrocoagulation with aeration and hydrogen peroxide up to drinking water quality standards

This study used conventional and enhanced electrocoagulation with aeration and H 2 O 2 to remove arsenite from water. Electrocoagulation and enhanced electrocoagulation, with aeration and H 2 O 2 , can remove arsenite with concentrations of 1, 2, and 10 mg/L to meet drinking water standards. The removal of arsenic in electrocoagulation (R 2 : 0.99) and enhanced electrocoagulation with aeration (R 2 : 0.99) and H 2 O 2 (R 2 : 0.0.99) follow the pseudo-first-order kinetics. The data on the adsorption of arsenic to aluminum produced in EC (R 2 : 0.90) and enhanced electrocoagulation with aeration (R 2 : 0.90) and H 2 O 2 (R 2 : 0.81) is consistent with the Langmuir isotherm. The enhanced electrocoagulation with aeration and H 2 O 2 had a higher ability to remove arsenic than in previous studies. For the first time, using enhanced electrocoagulation with H 2 O 2 , arsenic-contaminated water at a 10 mg/L concentration was treated to the drinking water standard. Therefore, preparing drinking water from arsenic-contaminated water sources can be an efficient process up to 10 mg/L.