The principles and characteristics of the research progress in wastewater treatment by electrocoagulation are summarized. The processes of hydrolyzing and polymerization of Al3+, Fe3+ are analyzed, and the functions of relevant influencing factors are discussed,including electrode materials,pH,current density,etc. In addition,some engineering applications of the electrocoagulation technology are reviewed, including the removal of chromium, phosphorus, fluorine ions,dye pollutants,etc. The existing problems in the above researches and applications and the developing trends of this technology in the future are brought forward.%综述了电絮凝法处理废水的原理和特点,解析Al3+、Fe3+的水解聚合过程,并探讨相关影响因素的作用,包括电极材料、pH、电流密度等,列举了电絮凝法的部分实际应用,包括处理废水中的铬、磷、氟、染料污染物等,并提出目前研究和应用存在的问题及今后该技术的发展方向.
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