Work

Insight into the coupled processes of electro-oxidation and other techniques for organic removal from water and wastewater

Year: 2025

Type: article

Abstract: Electrochemical advanced oxidation processes (EAOPs) face significant challenges for industrial application, including mass transfer limitations, high energy consumption, and electrode material costs. The coupled processes of electro-oxidation and other techniques have the potential to address these challenges by overcoming some individual intrinsic limitations of each single process, the performances, mechanisms and applications of which require comparative analysis and discussion. This review systematically analyses the recent progresses for the coupled processes of electro-oxidation and other techniques including membrane filtration (MF), persulfate activation (PS), photocatalysis (PC), ultrasound (US), coagulation (CG), and ozonation (O 3 ). The synergistic reaction mechanisms, advantages, and limitations of these coupled processes were discussed for organic removal from water and wastewater. The analysis demonstrates that the coupled processes generate significant synergies, achieving pollutant removal efficiencies exceeding 90 % in some systems while reducing energy consumption by up to 12 times compared to conventional methods. To address the remaining challenges in electrode durability and scalability, future efforts should focus on material cost reduction, reactor optimization, and pilot-scale validation for industrial deployment.

Source: Desalination and Water Treatment

DOI: 10.1016/j.dwt.2025.101458

Authors: Menglin Wu, Shu Zhou, Xiaoming Huang, Zhangquan Chen, Dan Zhi

Institutions: Hunan Agricultural University, Hunan University

Language: English

Topic: Advanced oxidation water treatment

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDGs: Clean water and sanitation, Responsible consumption and production

Open Access status: gold

Estimated APC paid: $1,000