[1]张永,刘欣,杨卫华,等.电子束辐照深度处理对DBPs前体物的削减与调控[J].中国给水排水,2026,42(11):44-49.
ZHANGYong,LIUXin,YANGWeihua,et al.Effect of Electron Beam Irradiation on Reduction and Regulation of DBPs Precursors[J].China Water & Wastewater,2026,42(11):44-49.
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ZHANGYong,LIUXin,YANGWeihua,et al.Effect of Electron Beam Irradiation on Reduction and Regulation of DBPs Precursors[J].China Water & Wastewater,2026,42(11):44-49.
电子束辐照深度处理对DBPs前体物的削减与调控
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第42卷
期数:
2026年第11期
页码:
44-49
栏目:
出版日期:
2026-06-01
- Title:
- Effect of Electron Beam Irradiation on Reduction and Regulation of DBPs Precursors
- Keywords:
- electron beam irradiation; filtered water; natural organic matter; disinfection by-products
- 摘要:
- 为探究不同电子束辐照强度下消毒副产物(DBPs)前体物的分解转化以及DBPs生成情况,以东营H水厂滤后水作为原水,开展电子束辐照实验,并采用液相色谱-有机碳检测-有机氮检测(LC-OCD-OND)和三维荧光光谱检测(3D-EEM)等方法对DBPs前体物的转化情况进行分析。LC-OCD-OND分析表明,电子束辐照可同时去除含氮有机化合物和含碳有机化合物,在5 kGy辐照强度下对亲水性有机碳(CDOC)和疏水性有机碳(HOC)的去除率分别为35.96%和5.26%,总有机碳(TOC)降低了11.15%,对生物大分子组分的去除率达到69.12%。3D-EEM分析表明,电子束辐照可有效去除芳香族蛋白类、腐殖酸类和富里酸类DBPs前体物,从而抑制三卤甲烷(THMs)类DBPs的生成,辐照后THMs的抑制率可以达到93.96%,出水DBPs水平远低于《生活饮用水卫生标准》(GB 5749—2022)限值。
- Abstract:
- To investigate the decomposition and transformation of disinfection by-products (DBPs) precursors and the generation of DBPs under different electron beam irradiation intensities, this study took the filtered water of H water supply plant in Dongying as the raw water, conducted electron beam irradiation experiments and analyzed the transformation of DBPs precursors using chromatography with organic carbon as well as organic nitrogen detection (LC-OCD-OND) and three-dimensional excitation-emission matrix fluorescence spectroscopy (3D-EEM). Results of LC-OCD-OND analysis showed that electron beam irradiation could remove both nitrogen-containing organic compounds and carbon? containing organic compounds. At 5 kGy irradiation intensity, the removal rate of hydrophilic organic carbon (CDOC) and hydrophobic organic carbon (HOC) were 35.96% and 5.26%, respectively; total organic carbon (TOC) was reduced by 11.15%; and the removal rate of biopolymer fractions reached 69.12%. 3D-EEM analysis indicated that electron beam irradiation could effectively remove the aromatic proteins, humic and fulvic acid DBPs precursors, thereby inhibiting the generation of trihalomethanes (THMs). After irradiation, THMs could be inhibited by up to 93.96%. The DBPs level in the effluent was far below limits specified in the Standards for Drinking Water Quality (GB 5749-2022).
更新日期/Last Update:
2026-06-01