Electrochemical Treatment of Wastewater Using a Hybrid Anodic Oxidation and Capacitive Deionization System
Abduova A. Zharkenov Y. Sarypbekova N. Omarov Z. Shaixslam T. Mukyshev A. Baitursynov U. Konarbayeva Z. Mkilima T.
November 2025John Wiley and Sons Inc
Engineering Reports
2025#7Issue 11
The pressing need for clean water and the limitations of conventional treatment technologies have spurred the development of multifunctional and energy-efficient water purification systems. This study presents an innovative single-stage electrochemical treatment system that integrates anodic oxidation with capacitive deionization (AO-CDI) for the simultaneous removal of organic pollutants, heavy metals, and dissolved salts from wastewater. Unlike traditional multi-unit approaches, this hybrid system combines a boron-doped diamond (BDD) anode for hydroxyl radical-driven oxidation with a carbon aerogel-based CDI unit for targeted ion removal, offering a compact and scalable solution. Under optimized conditions (4.0 V, 60 min), the system achieved 98% chemical oxygen demand (COD) reduction, 95% lead and 91% chromium removal, and 85% total dissolved solids (TDS) reduction. Microbial disinfection exceeded 99.5% for E. coli and total coliforms. Remarkably, these outcomes were attained with a total energy consumption of only 0.35 kWh/m3, outperforming many existing advanced oxidation processes. The results demonstrate the AO-CDI systems potential as a sustainable and decentralized treatment platform, capable of addressing complex wastewater streams in an energy- and cost-efficient manner.
anodic oxidation , boron-doped diamond , capacitive deionization , electrochemical treatment , wastewater remediation , water desalination
Text of the article Перейти на текст статьи
Department of Ecology, M. Auezov South Kazakhstan University, Shymkent, Kazakhstan
University of Illinois Urbana-Champaign, Champaign, IL, United States
Department of Civil Engineering, L.N. Gumilyov Eurasian National University, Astana, Kazakhstan
Department of Chemistry and Pharmaceutical Engineering, M. Auezov South Kazakhstan University, Shymkent, Kazakhstan
Department of Architecture and Design, Toraighyrov University, Pavlodar, Kazakhstan
Department of Industrial, Civil and Transport Construction, Toraighyrov University, Pavlodar, Kazakhstan
College of Mukhtar Auezov South Kazakhstan University, Shymkent, Kazakhstan
Department of Environmental Engineering and Management, University of Dodoma, Dodoma, Tanzania
Department of Ecology
University of Illinois Urbana-Champaign
Department of Civil Engineering
Department of Chemistry and Pharmaceutical Engineering
Department of Architecture and Design
Department of Industrial
College of Mukhtar Auezov South Kazakhstan University
Department of Environmental Engineering and Management
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026