| 三维荧光分析O3和UV-C处理铜绿微囊藻过程 |
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| 引用本文： | 王昊,高乃云,欧桦瑟,戎文磊,周圣东,陆纳新.三维荧光分析O3和UV-C处理铜绿微囊藻过程[J].中南大学学报(自然科学版),2012,43(2):763-768. |
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| 作者姓名： | 王昊 高乃云 欧桦瑟 戎文磊 周圣东 陆纳新 |
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| 作者单位： | 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 |
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| 基金项目： | 国家科技重大专项基金资助项目(2008ZX07421-002);国家高技术研究发展计划(“863”计划)项目(2008AA06A412);住房和城乡建设部研究开发项目(2009-K7-4) |
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| 摘 要： | 采用三维荧光色谱(EEM)研究O3和UV-C处理铜绿微囊藻(Microcystic Aeruginosa)过程中胞外溶解性有机物(EDOM)及胞内溶解性有机物(IDOM)的荧光特性变化,并对其进行定性和定量分析。研究结果表明:未处理的铜绿微囊藻的胞外荧光物质以类蛋白质物质为主,胞内以类蛋白质和类氨基酸物质为主;定量分析采用区域积分方法,经过处理之后,胞内、外类蛋白质峰和类腐殖质峰强度均有变化,不同氧化剂处理过程中各个特征荧光峰的变化趋势不同,存在不同的反应机理,其中,中等强度UV-C对藻类荧光有机物降解效果显著,低浓度的O3对藻类荧光有机物降解效果不佳。
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| 关 键 词： | 三维荧光色谱 铜绿微囊藻 UV-C 臭氧氧化 藻类控制 区域积分 |
3-D fluorescence spectroscopy studies on degradation of microcystic aeruginosa by O3 and UV-C irradiation |
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| WANG Hao
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GAO Nai-yun
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OU Hua-se
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RONG Wen-lei
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ZHOU Sheng-dong
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LU Na-xin.3-D fluorescence spectroscopy studies on degradation of microcystic aeruginosa by O3 and UV-C irradiation[J].Journal of Central South University:Science and Technology,2012,43(2):763-768. |
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| Authors: | WANG Hao GAO Nai-yun OU Hua-se RONG Wen-lei ZHOU Sheng-dong LU Na-xin |
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| Institution: | 1.State Key Laboratory of Pollution Control and Resource Reuse,Tongji University,Shanghai 200092,China; 2.Wuxi Water Supply General Company,Wuxi 214031,China) |
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| Abstract: | 3-D excitation emission matrix fluorescence(EEM) spectroscopy was used for degradation studies of Microcystic Aeruginosa by O3 and UV-C irradiation.Extracellular dissolved organic matter(EDOM) and intracellular dissolved organic matter(IDOM) of algal suspension were analyzed by EEM and quantified by fluorescence regional integration(FRI) methods.Protein-like matter was determined to be the major fluorescence component of EDOM,while amino acid-like and protein-like matter was found to constitute IDOM.The results show that the variation tendency of protein-like matter and humus-like matter are different as a result of specific disinfection and degradation mechanisms of O3 and UV-C.Medium intensity UV-C irradiation is confirmed to be an efficient cyanobacterial inactivation method with high purifying effect of dissolved fluorescence organic matter,while low-dosage O3 has limited effect on cyanobacterial-based matter removal. |
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| Keywords: | 3-D fluorescence spectroscopy microcystic aeruginosa UV-C ozonation algae control regional integration |
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