Glass Fiber Manufacturing Wastewater Treatment Using Chemical Coagulation and Combined Electrooxidation Processes

Abstract

This study investigated the oxidation of wastewater generated during the production of glass fiber manufacturing material, which contains high organic carbon (18.32 g/L) and has a pH of 8.8, by chemical coagulation and electro-advanced oxidation techniques. It was determined that the organic content of the wastewater decreased by 53% with chemical coagulation. After electrocoagulation with Al/Al electrode pair for 300 minutes at 500 mA, 73% TOC removal was achieved at pH 8.8. While 50% mineralization was completed in 2 h at 400 mA in electrocoagulation with Fe/Fe electrode pair, 71% TOC removal was obtained in the combined EC/EF process by adding hydrogen peroxide to the medium under the same conditions. It was observed that the success of the anodic oxidation methods alone was lower. The electro-Fenton application after electrocoagulation was effective (78% TOC removal) but required work at pH 3 and a longer treatment time.