Effect of the Recycling Process on Drinking Water Treatment: Evaluation Based on Fluorescence EEM Analysis Using the Peak-Picking Technique and Self-Organizing Map
Effect of the Recycling Process on Drinking Water Treatment: Evaluation Based on Fluorescence EEM Analysis Using the Peak-Picking Technique and Self-Organizing Map
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DOI：
10.3390/w13233456
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发表时间：
2021-12
期刊：
影响因子：
3.4
通讯作者：
H. Hudori;M. Rosadi;Toshiro Yamada;S. Bhat;Fusheng Li
中科院分区：
文献类型：
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作者：
H. Hudori;M. Rosadi;Toshiro Yamada;S. Bhat;Fusheng Li
回收过程应用于许多水处理厂（WTP），尽管该过程可能导致不利影响。基于荧光激发-发射矩阵，采用峰值拾取技术和自组织映射（SOM）的回收过程中的溶解有机物的特性的影响进行了评估。在这项研究中，两个垃圾处理厂，一个与一个没有回收系统，进行了评估。两种WTP在混凝絮凝过程中去除DOC、富里酸样、腐殖酸样和类胡萝卜素样物质的效率中等。在过滤过程后，回收过程导致富里酸样、腐殖酸样和类胡萝卜素样物质的值和比紫外吸光度（苏瓦）分别增加约31.0%、35.7%、22.2%和6%。同时，未回收的WTP显示出类富里酸、类胡敏酸和类胡萝卜素物质以及苏瓦的水平分别降低了23.3%、52.9%、27.8%和21.1%。此外，基于峰值拾取技术的SOM分析可以确定由于回收过程而导致的样本聚类的差异。
The recycling process is applied in many water treatment plants (WTPs), although this process can lead to adverse effects. The effect of the recycling process on the characteristics of dissolved organic matter was evaluated based on a fluorescence excitation-emission matrix using the peak-picking technique and self-organizing map (SOM). In this study, an evaluation of two WTPs, one with and one without a recycling system, was carried out. Both WTPs show moderate efficiency during the coagulation–flocculation process in removing DOC, fulvic acid-like, humic acid-like, and tryptophan-like substances. The recycling process causes increased values of fulvic acid-like, humic acid-like, and tryptophan-like substances and specific ultraviolet absorbance (SUVA) after the filtration process of about 31.0%, 35.7%, 22.2%, and 6%, respectively. Meanwhile, the WTP without recycling showed a reduction in the level of fulvic acid-like, humic acid-like, and tryptophan-like substances and SUVA by 23.3%, 52.9%, 27.8%, and 21.1%, respectively. Moreover, SOM analysis based on the peak-picking technique can determine differences in sample clusters due to the recycling process.