基于SDBS与DOM的生活污水直排漏排溯源研究

祁昕; 张浏; 冯景伟; 尹浩; 刘兰花; 费扬

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中国环境科学 ›› 2025, Vol. 45 ›› Issue (2) : 748-758.

水污染与控制

基于SDBS与DOM的生活污水直排漏排溯源研究

祁昕¹, 张浏², 冯景伟¹, 尹浩³, 刘兰花⁴, 费扬¹

作者信息 +

Traceability of direct and leakage discharge of domestic sewage based on SDBS and DOM

QI Xin¹, ZHANG Liu², FENG Jing-wei¹, YIN Hao³, LIU Lan-hua⁴, FEI Yang¹

Author information +

文章历史 +

摘要

结合阴离子表面活性剂十二烷基苯磺酸钠(SDBS)与溶解性有机物(DOM)溯源手段对十五里河直排漏排污染情况进行分析,利用皮尔逊相关性分析方法研究各指标的关联.结果表明,SDBS在未经处理的生活污水中含量高(522~668μg/L),表征污染时指示作用较明确,但易受工业洗涤废水影响;DOM在未经处理的生活污水呈现高百分比CHOS化合物(83%~84%)与蛋白质+脂质组分(80%~81%)、高氢碳比(H/C=1.6)、低碳的标称氧化态(NOSC=-1)等特征,用以上指标评价污染更为全面,但易受污水处理厂尾水影响.结合SDBS与DOM溯源优势,可有效排除干扰因素,使污染情况表征更加可靠.本研究可为河流中生活污水直排漏排污染分析及其溯源提供新思路与技术支持.

Abstract

In this study, the pollution of direct and leakage in Shiwuli River was analyzed by combining anionic surfactant sodium dodecyl benzene sulfonate (SDBS) and dissolved organic matter (DOM) traceability methods, and the correlation and difference of each index were studied by Pearson correlation analysis method. The results showed that the content of SDBS in untreated domestic sewage was high (522~668μg/L), which was easily affected by industrial washing wastewater when characterizing the pollution situation. DOM is characterized by high percentage of CHOS compounds (83%~84%), protein + lipid components (80%~81%), high hydrogen-carbon ratio (H/C=1.6) and low-carbon nominal oxidation state (NOSC=-1) in untreated domestic sewage. Combining the advantages of SDBS and DOM traceability can effectively eliminate interference factors and make the characterization of river domestic sewage pollution more reliable. This study can provide new ideas and technical support for the analysis and traceability of the direct and leakage of domestic sewage pollution in rivers.

导出引用

祁昕, 张浏, 冯景伟, 尹浩, 刘兰花, 费扬. 基于SDBS与DOM的生活污水直排漏排溯源研究[J]. 中国环境科学. 2025, 45(2): 748-758

QI Xin, ZHANG Liu, FENG Jing-wei, YIN Hao, LIU Lan-hua, FEI Yang. Traceability of direct and leakage discharge of domestic sewage based on SDBS and DOM[J]. China Environmental Science. 2025, 45(2): 748-758

中图分类号： X703

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