Use of Fe and Al Containing Electrocoagulation Sludge as an Adsorbent and a Catalyst in Water Treatment

In this study, three different electrocoagulation (EC) sludges were studied as an adsorbent (removal of humic acids) and a catalyst [catalytic wet peroxide oxidation (CWPO) bisphenol A (BPA)]. The originated from process in which aluminum (Al) iron (Fe) electrodes used for the treatment mining industry wastewater. All materials dried sludge calcined material. stability these was neutral alkaline conditions with analysis leached content solution. Based on EC characterization X-ray fluorescence (XRF), diffractometer (XRD), diffuse-reflectance infrared Fourier transform (DRIFT) spectroscopy forms Fe occurring found. Brunauer–Emmett–Teller (BET) method showed reduced surface area after calcination process. Stability conditions, amount leaching low (<1.4 ppm). Adsorption experiments that removal acids (measured total organic carbon) over 50% all tested pH range 3–9, 92% S3 material range. samples catalytically more active than raw CWPO BPA. highest BPA 85% sludge. Therefore, are suitable use. main novelty paper finding modification water through electrode current density. This can be made process, it may provide low-cost to utilization