华南理工大学学报(自然科学版) ›› 2014, Vol. 42 ›› Issue (5): 48-53.doi: 10.3969/j.issn.1000-565X.2014.05.008

• 环境科学与技术 • 上一篇    下一篇

藻源型有机物氯化消毒副产物的生成特性

高乃云1 朱明秋1 周石庆1 黎雷1 戎文磊2 周圣东2 陆纳新2   

  1. 1.同济大学 污染控制与资源化研究国家重点实验室,上海 200092; 2.无锡自来水公司,江苏 无锡 214031
  • 收稿日期:2013-06-14 修回日期:2013-11-24 出版日期:2014-05-25 发布日期:2014-04-01
  • 通信作者: 高乃云(1950-),女,博士,教授,博士生导师,主要从事饮用水处理技术研究. E-mail:gaonaiyun@sina.com
  • 作者简介:高乃云(1950-),女,博士,教授,博士生导师,主要从事饮用水处理技术研究.
  • 基金资助:

    国家水体污染控制与治理科技重大专项(2012ZX07403-001);国家自然科学基金资助项目(51178321);高等学校博士学科点专项科研基金资助项目(20120072110050)

Characteristics of Disinfection By- Products Formation from Algae Organic Matters in the Process of Chlorination

Gao Nai- yun1 Zhu Ming- qiu1 Zhou shi- qing1 Li Lei1 Rong Wen- lei2 Zhou Sheng- dong2 Lu Na- xin2   

  1. 1.State Key Laboratory of Pollution Control and Resource Reuse,Tongji University,Shanghai 200092,China;2.Wuxi Waterworks Co.,Ltd.,Wuxi 214031,Jiangsu,China
  • Received:2013-06-14 Revised:2013-11-24 Online:2014-05-25 Published:2014-04-01
  • Contact: 高乃云(1950-),女,博士,教授,博士生导师,主要从事饮用水处理技术研究. E-mail:gaonaiyun@sina.com
  • About author:高乃云(1950-),女,博士,教授,博士生导师,主要从事饮用水处理技术研究.
  • Supported by:

    国家水体污染控制与治理科技重大专项(2012ZX07403-001);国家自然科学基金资助项目(51178321);高等学校博士学科点专项科研基金资助项目(20120072110050)

摘要: 通过亲水、疏水组分分离和电渗析获得 6 种不同特性的铜绿微囊藻细胞胞内外富氮有机组分,其中溶解性有机氮(DON)的质量浓度范围为 0.57 ~1.69 mg/L;三维荧光光谱图表明,疏水性有机物主要由类腐殖质物质组成,亲水性有机物主要由蛋白质组成.经过 3 天氯化培养实验,分析比较各有机物组分含碳(氮)消毒副产物的生成特性.结果表明,细胞内外强疏水性有机物组分的三卤甲烷生成潜能最大,以生成三氯甲烷为主;卤代酮生成潜能与细胞内外各有机物组分有明显相关性;细胞内亲水性有机物组分的含氮消毒副产物生成潜能(DBPFP)最大;各组分消毒副产物生成潜能并不完全由溶解性有机碳(DOC)与溶解性有机氮的质量浓度比值的大小决定,还由 DON 的性质决定;细胞外有机物组分的 DBPFP 高低与芳香性有机物的含量呈正相关,细胞内有机物组分的 DBPFP还受芳香性有机物性质的影响;细胞外有机物组分消毒副产物生成总量的顺序为:强疏水性组分 > 亲水性组分 > 弱疏水性组分;细胞内有机物组分消毒副产物生成总量的顺序为:亲水性组分 > 强疏水性组分 > 弱疏水性组分.

关键词: 铜绿微囊藻, 消毒副产物, 亲水性, 疏水性, 溶解性有机氮, 氯化

Abstract:

Six kinds of nitrogen- enriched intracellular and extracellular algae organic matters of Microcystic aerugi-nosa with different characteristics were obtained via the fractionation electrodialysis of hydrophilic and hydrophobiccomponents,with the mass concentrations of dissolved organic nitrogen (DON) ranging from 0.57 to 1.69 mg/L.Then,the 3D fluorescence spectrography was adopted to analyze the composition of hydrophilic and hydrophobiccomponents,finding that the former was mainly composed of humus- like substances and the latter mainly composedof protein.Afterwards,the formation characteristics of carbonaceous (nitrogenous) disinfection byproducts fromdifferent organic matters were analyzed and compared after a 3- day chlorination.The results show that (1) hydro-phobic intracellular and extracellular organic matters are of maximum trihalide methane formation potential,espe-cially for chloroform; (2) there is a significant correlation between haloketone formation potential and intracellularand extracellular organic matters; (3) the hydrophilic component in intracellular organic matters is of the greatestnitrogenous disinfection by- products formation potential (DBPFP); (4) the disinfection by- products formation po-tential of each component is not only determined by the value of DOC/DON (namely the mass concentration ratio ofdissolved organic carbon to DON) but also by the characteristics of DON; (5) the DBPFP of extracellular organicmatters is positively correlated with the content of aromatic organic materials,while that of intracellular organic mat-ters is mainly influenced by the properties of aromatic organic materials; and (6) the disinfection by- products pro-duced by extracellular organic matters are in a content order of hydrophobic by- products > hydrophilic by- products> transphilic by- products,while those produced by intracellular matters are indicative of the following order: hy-drophilic by- products > hydrophobic by- products > transphilic by- products.

Key words: Microcystic aeruginosa, disinfection by- product, hydrophilicity, hydrophobicity, dissolved organic ni-trogen, chlorination

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