Electrocoagulation-biochemical synergistic process for the treatment of electroplating wastewater: performance and mechanism exploration
电絮凝—生化协同工艺处理电镀废水的性能与机制探讨

摘要

电镀在工业生产中应用广泛，但其产生的废水内含有高浓度重金属离子、有机污染物及复杂络合物，对环境与人体健康构成严重威胁。传统单一处理方式无法满足严格的排放标准，需采用高效、稳定联合处理工艺。电絮凝—生化协同工艺结合电化学氧化、金属氢氧化物吸附与生物降解等多种机制，协同去除电镀废水内多类污染物。电絮凝—生化协同工艺通过结合电化学氧化、金属氢氧化物共沉淀吸附、生物降解等多种作用机制，能有效去除废水中的重金属、有机物及络合污染物，具有处理效率高、运行稳定、适应性强等优势，在具体工程中表现出良好的应用前景。

Abstract

Electroplating is widely used in industrial production, but the wastewater it generates contains high concentrations of heavy metal ions, organic pollutants, and complex compounds, posing serious threats to the environment and human health. Traditional single-treatment methods cannot meet stringent discharge standards, necessitating the adoption of efficient and stable combined treatment processes. The electrocoagulation-biochemical synergistic process integrates multiple mechanisms, including electrochemical oxidation, metal hydroxide adsorption, and biodegradation, to collaboratively remove various pollutants from electroplating wastewater. By combining electrochemical oxidation, metal hydroxide coprecipitation and adsorption, and biodegradation, this process effectively eliminates heavy metals, organic pollutants, and complex compounds from wastewater. It offers advantages such as high treatment efficiency, stable operation, and strong adaptability, demonstrating promising application potential in practical engineering projects.