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藻源型有机物氯化消毒副产物的生成特性
  • ISSN号:1000-565X
  • 期刊名称:华南理工大学学报(自然科学版)
  • 时间:2014.5.15
  • 页码:48-53
  • 分类:X52[环境科学与工程—环境工程]
  • 作者机构:[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
  • 相关基金: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)
  • 相关项目:纳米级羟基稀土化合物与生物炭滤联用还原降解水中高氯酸盐
中文摘要:

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.

英文摘要:

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 hydrophobic components, 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 hydrophobic components, finding that the former was mainly composed of humus-like substances and the latter mainly composed of protein. Afterwards, the formation characteristics of carbonaceous (nitrogenous) disinfection byproducts from different 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 intracellular and extracellular organic matters; (3) the hydrophilic component in intracellular organic matters is of the greatest nitrogenous 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 of dissolved organic carbon to DON) but also by the characteristics of DON ; (5) the DBPFP of extracellular organic matters 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 intraeellular matters are indicative of the following order: hy- drophilic by-products 〉 hydrophobic by-products 〉

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期刊信息
  • 《华南理工大学学报:自然科学版》
  • 北大核心期刊(2011版)
  • 主管单位:国家教育部科技司
  • 主办单位:华南理工大学
  • 主编:李元元
  • 地址:广州市天河区五山路华南理工大学17号楼
  • 邮编:510640
  • 邮箱:journal@scut.edu.cn
  • 电话:
  • 国际标准刊号:ISSN:1000-565X
  • 国内统一刊号:ISSN:44-1251/T
  • 邮发代号:46-174
  • 获奖情况:
  • 本学报荣获1996年国家教委系统优秀科技期刊二等奖...,1999年荣获全国优秀高校自然科学学报及教育部优秀...,2001年荣获广东省优秀期刊奖和广东省优秀科技期刊...,2004年获全国高校优秀科技期刊二等奖,2006年获首届教育部优秀科技期刊奖,2008年荣获第二届教育部优秀科技期刊奖
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘(网络版),荷兰文摘与引文数据库,美国工程索引,美国剑桥科学文摘,英国科学文摘数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),中国北大核心期刊(2000版)
  • 被引量:22954