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

Autor: Aghapour, Ali Ahmad, Ebrahimi, Iraj, bargeshadi, Rogaieh, Khorsandi, Hassan
Zdroj: Reaction Kinetics, Mechanisms & Catalysis; Oct2022, Vol. 135 Issue 5, p2681-2696, 16p
Abstrakt: This study used conventional and enhanced electrocoagulation with aeration and H2O2 to remove arsenite from water. Electrocoagulation and enhanced electrocoagulation, with aeration and H2O2, can remove arsenite with concentrations of 1, 2, and 10 mg/L to meet drinking water standards. The removal of arsenic in electrocoagulation (R2: 0.99) and enhanced electrocoagulation with aeration (R2: 0.99) and H2O2 (R2: 0.0.99) follow the pseudo-first-order kinetics. The data on the adsorption of arsenic to aluminum produced in EC (R2: 0.90) and enhanced electrocoagulation with aeration (R2: 0.90) and H2O2 (R2: 0.81) is consistent with the Langmuir isotherm. The enhanced electrocoagulation with aeration and H2O2 had a higher ability to remove arsenic than in previous studies. For the first time, using enhanced electrocoagulation with H2O2, 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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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