Effluent organic matter (EfOM) refers to the residual refractory organic materials in effluent after the primary and secondary biological treatment of sewage. The presence and characteristics of EfOM in wastewater are of great interest with respect to discharge quality and the efficiency of advanced treatment facilities. This paper summarized the characterization methods of EfOM including the molecular weight distribution, hydrophobic/hydrophilic fractionation, and excitation/emission matrix (EEM). The characteristic transformation of EfOM in the treatment processes has been summarized. At present, efficient and applicable advanced wastewater treatment processes including ozonation and membrane filtration. Nevertheless, there still needs urgent solution to reducing their operation costs.%污水二级生化出水有机物(EfOM)是污水中经初级和二级生化处理后剩余的难降解有机物,EfOM是影响二级出水排放的主要限制因素,也是污水再生及回用处理中的主要目标去除物质.本文对现有EfOM的表征方法-分子量分布、亲疏水性分离、荧光光谱等进行了分类归纳,进一步总结了现有处理方法对EfOM性质特点的影响.以臭氧为核心的氧化技术和膜滤技术发挥了深度处理效能,降低了运行成本.
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