Enhanced Ti/TiO2-RuO2-SnO2 anode material for a sequential electrocoagulation-electrooxidation treatment of real Teflon plating industrial wastewater
Year: 2026
Type: article
Abstract: Rapid expansion of the Teflon industry has intensified the release fluoropolymer-laden effluents, rich in polytetrafluoroethylene (PTFE) contaminants and precursors to per - and polyfluoroalkyl substances (PFAS). Conventional treatment methods struggle to degrade these persistent pollutants due to their chemical inertness and stability. This study presents a detailed and reproducible sequential electrocoagulation (EC) and electrooxidation (EO) approach for treating real Teflon plating process wastewater (TPWW). EC using Al electrodes at optimized conditions (5 mA/cm 2 , pH 6, 10 mins) achieved significant removal of turbidity, suspended solids, and chemical oxygen demand (COD) with minimal sludge and energy costs. Subsequent EO treatment with a Ti/TiO 2 -RuO 2 -SnO 2 anode at optimal conditions (pH 3, 30 mA/cm 2 , 90 mins) demonstrated over 99% COD and 92% TOC removal efficiencies. The sequential EC–EO process demonstrated effective pollutant removal, energy efficiency, and operational scalability. This mechanistically grounded approach offers a reproducible, cost-effective solution for treating fluoropolymer-laden industrial effluents, contributing to research efforts towards enhancing water treatment efficiencies. The findings contribute to sustainable water management by advancing scalable electrochemical protocols for PFAS-related effluents, directly supporting UN Sustainable Development Goal 6 targets on water quality improvement, integrated resource management, and ecosystem protection.
Authors: Iddrisu Seidu, Nevin Atalay Gengec
Institution: Kocaeli Üniversitesi
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,350
OpenAlex ID: W7123562285