紫外线-茶多酚/次氯酸钠联合消毒管网微生物特性分析

刘炫圻; 宋春刚; 冯萃敏; 田萌; 纪海霞; 张欣蕊; 丁梓沁

doi:10.12030/j.cjee.201810033

环境工程学报

紫外线-茶多酚/次氯酸钠联合消毒管网微生物特性分析

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刘炫圻, 宋春刚, 冯萃敏, 田萌, 纪海霞, 张欣蕊, 丁梓沁. 紫外线-茶多酚/次氯酸钠联合消毒管网微生物特性分析[J]. 环境工程学报, 2019, 13(3): 616-623. doi: 10.12030/j.cjee.201810033

引用本文:

LIU Xuanqi, SONG Chungang, FENG Cuimin, TIAN Meng, JI Haixia, ZHANG Xinrui, DING Ziqin. Analysis of microbial characteristics in pipe network with ultraviolet & tea polyphenols or ultraviolet & sodium hypochlorite combined disinfection[J]. Chinese Journal of Environmental Engineering, 2019, 13(3): 616-623. doi: 10.12030/j.cjee.201810033

Citation:

LIU Xuanqi, SONG Chungang, FENG Cuimin, TIAN Meng, JI Haixia, ZHANG Xinrui, DING Ziqin. Analysis of microbial characteristics in pipe network with ultraviolet & tea polyphenols or ultraviolet & sodium hypochlorite combined disinfection[J]. Chinese Journal of Environmental Engineering, 2019, 13(3): 616-623. doi: 10.12030/j.cjee.201810033

紫外线-茶多酚/次氯酸钠联合消毒管网微生物特性分析

1.
北京建筑大学，北京未来城市设计高精尖创新中心，北京 100044
2.
北京建筑大学，水环境国家级实验教学示范中心，北京 100044
3.
北京城建房地产开发有限公司，北京 100081
4.
北京市市政工程设计研究总院有限公司，北京 100082
基金项目:
国家自然科学基金资助项目51678026

北京建筑大学研究生创新项目PG2018046

北京建筑大学市属高校基本科研业务费专项资金资助X18279国家自然科学基金资助项目(51678026)

北京建筑大学研究生创新项目(PG2018046)

北京建筑大学市属高校基本科研业务费专项资金资助(X18279)

Analysis of microbial characteristics in pipe network with ultraviolet & tea polyphenols or ultraviolet & sodium hypochlorite combined disinfection

1.
Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
2.
National Demonstration Center for Experimental Water Environment Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
3.
Beijing Urban Construction Real Estate Exploitation Co.Ltd., Beijing 100081, China
4.
Beijing General Municipal Engineering Design & Research Institute Co.Ltd., Beijing 100082, China
Fund Project:

摘要: 紫外线对微生物的杀灭效果较好，但持续性差，引入茶多酚作为辅助消毒剂，采用管网动态模拟系统，对比了紫外线-茶多酚联合消毒和紫外线-次氯酸钠联合消毒后管网微生物的总量、群落分布和有机物荧光特性变化。结果表明，紫外线-茶多酚联合消毒对微生物的灭活效果比紫外线-次氯酸钠联合消毒更好，并且对致病菌和耐氯性细菌也有很强的杀灭能力。紫外线-茶多酚联合消毒后，酪氨酸类物质荧光和类腐殖酸物质荧光特性产生变化，说明这2类物质含量大量减少，可能会影响微生物的生长；此外，管壁生物膜中出现了儿茶素、表儿茶素类物质，这说明茶多酚与管壁微生物发生了相互作用；紫外线-次氯酸钠联合消毒后酪氨酸类的荧光特征峰发生蓝移，这说明次氯酸进入微生物内发挥氧化作用。
- 紫外线-茶多酚联合消毒 /
- 紫外线-次氯酸钠联合消毒 /
- 管网动态模拟系统 /
- 微生物 /
- 饮用水处理
Abstract: Ultraviolet (UV) has a good disinfection performance on microorganisms but with a weak durative. Tea polyphenols (TP) or sodium hypochlorite was used as an adjunct disinfectant for UV disinfection. In the dynamic simulation system of pipe network, the variations of microbial biomass, microbial community structure and organic matter fluorescence were compared between UV-TP and UV-NaClO combined disinfections. Results showed that the former had a better inactivation effect on microorganisms than the later, and a stronger cell-killing ability against pathogenic bacteria and chlorine-resistant bacteria. The change in fluorescence characteristics of tyrosine and humic acid after UV-TP combined disinfection indicated that the contents of these two substances were greatly reduced, which may affect the growth of microorganisms. In addition, the appearance of catechins and epicatechins in the biofilm on the pipe wall indicated that the occurrence of interaction between tea polyphenols and microorganisms. After UV-NaClO combined disinfection, a blue shift happened on the fluorescence characteristic peaks of tyrosines, which indicated that hypochlorous acid entered the cell of microorganisms and played an oxidation role accordingly.

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Citation:

LIU Xuanqi, SONG Chungang, FENG Cuimin, TIAN Meng, JI Haixia, ZHANG Xinrui, DING Ziqin. Analysis of microbial characteristics in pipe network with ultraviolet & tea polyphenols or ultraviolet & sodium hypochlorite combined disinfection[J]. Chinese Journal of Environmental Engineering, 2019, 13(3): 616-623. doi: 10.12030/j.cjee.201810033

紫外线-茶多酚/次氯酸钠联合消毒管网微生物特性分析

1. 北京建筑大学，北京未来城市设计高精尖创新中心，北京 100044
2. 北京建筑大学，水环境国家级实验教学示范中心，北京 100044
3. 北京城建房地产开发有限公司，北京 100081
4. 北京市市政工程设计研究总院有限公司，北京 100082

基金项目:

国家自然科学基金资助项目51678026

北京建筑大学研究生创新项目PG2018046

北京建筑大学市属高校基本科研业务费专项资金资助X18279国家自然科学基金资助项目(51678026)

北京建筑大学研究生创新项目(PG2018046)

北京建筑大学市属高校基本科研业务费专项资金资助(X18279)

关键词:

摘要: 紫外线对微生物的杀灭效果较好，但持续性差，引入茶多酚作为辅助消毒剂，采用管网动态模拟系统，对比了紫外线-茶多酚联合消毒和紫外线-次氯酸钠联合消毒后管网微生物的总量、群落分布和有机物荧光特性变化。结果表明，紫外线-茶多酚联合消毒对微生物的灭活效果比紫外线-次氯酸钠联合消毒更好，并且对致病菌和耐氯性细菌也有很强的杀灭能力。紫外线-茶多酚联合消毒后，酪氨酸类物质荧光和类腐殖酸物质荧光特性产生变化，说明这2类物质含量大量减少，可能会影响微生物的生长；此外，管壁生物膜中出现了儿茶素、表儿茶素类物质，这说明茶多酚与管壁微生物发生了相互作用；紫外线-次氯酸钠联合消毒后酪氨酸类的荧光特征峰发生蓝移，这说明次氯酸进入微生物内发挥氧化作用。

English Abstract

Analysis of microbial characteristics in pipe network with ultraviolet & tea polyphenols or ultraviolet & sodium hypochlorite combined disinfection

1. Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
2. National Demonstration Center for Experimental Water Environment Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
3. Beijing Urban Construction Real Estate Exploitation Co.Ltd., Beijing 100081, China
4. Beijing General Municipal Engineering Design & Research Institute Co.Ltd., Beijing 100082, China

Fund Project:

Keywords:

Abstract: Ultraviolet (UV) has a good disinfection performance on microorganisms but with a weak durative. Tea polyphenols (TP) or sodium hypochlorite was used as an adjunct disinfectant for UV disinfection. In the dynamic simulation system of pipe network, the variations of microbial biomass, microbial community structure and organic matter fluorescence were compared between UV-TP and UV-NaClO combined disinfections. Results showed that the former had a better inactivation effect on microorganisms than the later, and a stronger cell-killing ability against pathogenic bacteria and chlorine-resistant bacteria. The change in fluorescence characteristics of tyrosine and humic acid after UV-TP combined disinfection indicated that the contents of these two substances were greatly reduced, which may affect the growth of microorganisms. In addition, the appearance of catechins and epicatechins in the biofilm on the pipe wall indicated that the occurrence of interaction between tea polyphenols and microorganisms. After UV-NaClO combined disinfection, a blue shift happened on the fluorescence characteristic peaks of tyrosines, which indicated that hypochlorous acid entered the cell of microorganisms and played an oxidation role accordingly.

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紫外线-茶多酚/次氯酸钠联合消毒管网微生物特性分析

Analysis of microbial characteristics in pipe network with ultraviolet & tea polyphenols or ultraviolet & sodium hypochlorite combined disinfection

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紫外线-茶多酚/次氯酸钠联合消毒管网微生物特性分析

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Analysis of microbial characteristics in pipe network with ultraviolet & tea polyphenols or ultraviolet & sodium hypochlorite combined disinfection

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