Abstract Effluent organic matter (EfOM) is one of the major foulants responsible for the occurrence of membrane fouling during advanced wastewater treatment using nanofiltration (NF) technology. In this present study, we have reported a simple fouling indicator based on the properties of fractional fluorescence and molecular weight, termed as fluorescence-size-index (FSI), to predict the fouling propensity of NF when filtrating EfOM. Specifically, EfOM collected from twenty-one real sewage samples were first analyzed to quantify their fluorescent compositions and concentrations. The results showed that the EfOM consisted mainly of humic-like substances, soluble organism metabolites and fulvic-like substances, characterized by small-molecule organic matters (

中文翻译：

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一种基于荧光的指示剂，用于指示出水有机物 (EfOM) 引起的纳滤污染倾向

摘要 出水有机物 (EfOM) 是使用纳滤 (NF) 技术进行深度污水处理过程中导致膜污染的主要污染物之一。在本研究中，我们报告了一种基于分数荧光和分子量特性的简单污垢指示剂，称为荧光大小指数 (FSI)，用于预测过滤 EfOM 时 NF 的污垢倾向。具体来说，首先分析了从 21 个真实污水样本中收集的 EfOM，以量化它们的荧光成分和浓度。结果表明，EfOM主要由类腐殖质、可溶性生物代谢物和类黄腐物质组成，以小分子有机物为特征。