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光谱表征评价2种不同预处理工程对DOM去除特征

马卫星,  邹立航,  李璇,  李朝霞,  马志强,  杜洪秋,  丁成,  吴向阳

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文章导航 > 环境工程  > 2022 >  40(8): 150-158,61
马卫星, 邹立航, 李璇, 李朝霞, 马志强, 杜洪秋, 丁成, 吴向阳. 光谱表征评价2种不同预处理工程对DOM去除特征[J]. 环境工程, 2022, 40(8): 150-158,61. doi: 10.13205/j.hjgc.202208021
引用本文: 马卫星, 邹立航, 李璇, 李朝霞, 马志强, 杜洪秋, 丁成, 吴向阳. 光谱表征评价2种不同预处理工程对DOM去除特征[J]. 环境工程, 2022, 40(8): 150-158,61. doi: 10.13205/j.hjgc.202208021
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MA Weixing, ZOU Lihang, LI Xuan, LI Chaoxia, MA Zhiqiang, DU Hongqiu, DING Cheng, WU Xiangyang. SPECTRAL CHARACTERIZATION OF ORGANIC REMOVAL PERFORMANCE OF TWO DIFFERENT WATER SOURCE PRETREATMENT PROJECTS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(8): 150-158,61. doi: 10.13205/j.hjgc.202208021
Citation: MA Weixing, ZOU Lihang, LI Xuan, LI Chaoxia, MA Zhiqiang, DU Hongqiu, DING Cheng, WU Xiangyang. SPECTRAL CHARACTERIZATION OF ORGANIC REMOVAL PERFORMANCE OF TWO DIFFERENT WATER SOURCE PRETREATMENT PROJECTS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(8): 150-158,61. doi: 10.13205/j.hjgc.202208021
shu

光谱表征评价2种不同预处理工程对DOM去除特征

doi: 10.13205/j.hjgc.202208021

  • 1. 盐城工学院 环境科学与工程学院, 江苏 盐城 224051;

  • 2. 江苏大学 环境与安全工程学院, 江苏 镇江 212013

基金项目: 

江苏省普通高校研究生科研创新计划项目(SJCX19-1040)

国家自然科学基金项目(51878587、51808480)

江苏省自然科学基金青年基金项目(BK20160439)

详细信息
    作者简介:

    马卫星(1987-),男,博士,讲师,主要研究方向为水处理技术研究。hs_weixing@163.com

    通讯作者:

    李璇(1987-),女,博士,副教授,主要研究方向为微污染水源水处理技术。lix_lixuan@163.com

    李朝霞(1973-),女,硕士,教授,主要研究方向为环境微生物学和水处理技术。lzxdzc@163.com

SPECTRAL CHARACTERIZATION OF ORGANIC REMOVAL PERFORMANCE OF TWO DIFFERENT WATER SOURCE PRETREATMENT PROJECTS

  • 1. College of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China;

  • 2. School of Environmental and Safety Engineering, Jiangsu University, Zhenjiang 212013, China

    摘要
  • 摘要: 为探究不同类型微污染水源预处理工程对水中溶解性有机物的去除特征,采用光谱表征结合多元统计方法,对盐龙湖预处理工程和通榆河预处理工程夏季各处理单元进出水水质进行研究。结果表明:夏季蟒蛇河及通榆河原水DO含量低于Ⅲ类水标准,蟒蛇河原水中a(254)较高,而通榆河原水中CODMn、BOD5较高。盐龙湖预处理工程与通榆河预处理工程对CODMn、BOD5、a(254)的去除率分别为4.19%、37.50%、1.55%和10.31%、23.49%、24.88%;从分子结构来看,盐龙湖预处理工程的预处理单元与通榆河预处理工程的高密度沉淀单元对DOM的改变最为明显,使DOM的浓度下降、分子量变小、苯环C的聚合程度增加。差异性分析表明:SR与E465/E665、A2/A1、A3/A1呈显著正相关,a(355)与E250/E365呈显著负相关。该研究结果可为微污染水源预处理工程的优化运行及保障城市饮用水安全提供数据参考。
    Abstract: Spectral characterization combined with multivariate statistical method was used to monitor and analyze the variation of organic matter concentration and spectral indexes in the inlet and outlet water of each treatment unit in the Yanlong project and Tongyu project in Yancheng. The results showed that the content of dissolved oxygen in the raw water of the Tongyu River and the Mangshe River was lower than that of the class Ⅲ in surface water quality standards in summer. In terms of organic concentration, a(254) was higher in raw water of Yanlong Lake, while CODMn and BOD5 were higher in raw water of Tongyu River. The removal rates of CODMn, BOD5, a(254) and a(355) in the pretreatment engineering of Yanlong Lake and Tongyu River were 4.19%, 37.50%, 1.55% and 10.31%, 23.49%, 24.88%, respectively. From the perspective of molecular structure, the pretreatment unit of Yanlong project and high-density sedimentation unit of Tongyu project had the most obvious changes on DOM, resulting in a decrease in DOM’s concentration and molecular weight, and a rise in the degree of polymerization of carbon atoms in benzene ring. The difference analysis showed that SR and E465/E665 had a significant positive correlation with A2/A1 and A3/A1 at 0.01 level, while a(355) had a significant negative correlation with E250/E365 at 0.01 level. The research results provide a theoretical basis for optimizing the operation of micro-polluted water source pretreatment engineering and safety ensuring of urban drinking water supply.
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出版历程
  • 收稿日期:  2021-10-21
  • 刊出日期:  2022-11-08

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