蓝藻胞外聚合物对供水管网水质的影响

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Abstract Aiming at the characteristics of free cyanobacterial extracellular polymeric substances (EPS) that are difficult to be removed in conventional water treatment processes, and the residual cyanobacterial EPS are easy to enter the water supply distribution system, the influence of cyanobacterial extracellular polymeric substances (EPS) on the water quality and biological stability of water supply distribution system was studied in this paper. The influence of cyanobacterial EPS on the variation of water quality indices, such as residual chlorine, turbidity, biological stability, organic components, and so on, were mainly analyzed under the different membrane attachment internal pipe condition caused by the service time. Results showed that the cyanobacterial EPS accelerated the decay rate of residual chlorine in the pipeline, led to the turbidity exceeding the upper limit of drinking water standard after 12~24h, reduced the biological stability of the pipeline water, increased BDOC by 37.2~39.5%, increased AOC by 365~393%, and increased the total viable bacteria by 18~20 times in 72 hours. It was clarified that the residual cyanobacterial EPS in the effluent of drinking water treatment plant could still serve as a microbial nutrient substrate and metabolic energy under the premise of residual chlorine in the pipe network during cyanobacteria bloom period, and this promoted the growth and reproduction of bacteria within pipeline, increased the metabolic activity of microorganisms, and stimulated the secretion and release of extracellular organic components of microorganisms, resulting in secondary pollution of the water quality.

Key words： cyanobacteria extracellular polymeric substances water supply distribution system water quality biological stability

Received: 25 April 2020

PACS:	X52
	X172

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	SUN Feng
	YU Hong-fei
	XU Chen-hui
	YU Peng
	ZHANG Han-yuan

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SUN Feng,YU Hong-fei,XU Chen-hui等. Influence of cyanobacterial extracellular polymeric substances on the water quality in water supply distribution system[J]. CHINA ENVIRONMENTAL SCIENCECE, 2020, 40(12): 5343-5351.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2020/V40/I12/5343

[1]	罗思胜,钟永光,陈志浩,等.城镇供水水质投诉原因分析及处理对策[J]. 城镇供水, 2019,4:84-87. Luo S S, Zhong Y G, Chen Z H, et al. Cause analysis and countermeasures of complaints about water quality of urban water supply[J]. City And Town Water Supply, 2019,4:84-87.
[2]	陈环宇,柳景青,魏宗元,等.供水管网大口径管道管垢中污染物分布的径向差异[J]. 中国环境科学, 2015,35(9):2706-2712. Chen H Y, Liu J Q, Wei Z Y, et al. Radial differences in contaminant distribution in large-diameter pipe scales of main pipelines in drinking water distribution system[J]. China Environmental Science, 2015, 35(9):2706-2712.
[3]	白晓慧,张玲,朱斌,等.供水系统水质生物稳定性与细菌生长相关分析[J]. 中国环境科学, 2006,26(2):180-182. Bai X H, Zhang L, Zhu B, et al. Relationship between water biological stability and the bacteria growth in drinking water distribution system[J]. China Environmental Science, 2006,26(2):180-182.
[4]	Niquette P, Servais P, Savoir R. Bacterial Dynamics in the drinking water distribution system of Brussels[J]. Water Research, 2001,35(3):675-682.
[5]	Li X Y, Yang S F. Influence of loosely bound extracellular polymeric substances (EPS) on the flocculation, sedimentation and dewaterability of activated sludge[J]. Water Research, 2007,41:1022-1030.
[6]	钱爱娟,潘嵘,孙凤,等.蓝藻胞外聚合物的污染和调控研究进展[J]. 环境污染与防治, 2017,8:916-919. Qian A J, Pan R, Sun F, et al. Contamination and regulation trends of cyanobacterial extracellular polymeric substance[J]. Environmental pollution and Prevention, 2017,8:916-919.
[7]	Sun F, Zhang H Y, Qian A J, et al. The influence of extracellular polymeric substances on the coagulation process of cyanobacteria[J]. Science of the Total Environment, 2020,720:137573.
[8]	许明,刘伟京,白永刚,等.太湖蓝藻水华期可溶有机物的生物降解[J]. 中国环境科学, 2018,38(9):3494-3501. Xu M, Liu W J, Bai Y G, et al. Biodegradation of dissolved organic matter in Lake Taihu during cyanobacterial blooms[J]. China Environmental Science, 2018,38(9):3494-3501.
[9]	Blanco Y, Rivas LA, González-Toril E, et al. Environmental parameters, and not phylogeny, determine the composition of extracellular polymeric substances in microbial mats from extreme environments[J]. Science of the Total Environment, 2019,650:384-393.
[10]	潘嵘.游离态蓝藻胞外聚合物的分泌释放规律及其在水处理过程中的迁移去除研究[D]. 扬州:扬州大学, 2019. Pan R. Research on the secretion and release of free cyanobacterial extracellilar polymeric substance and its migration during water treatment[D]. Yangzhou:Yangzhou University, 2019.
[11]	Xu H C, Cai H Y, Yu G H, et al. Insights into extracellular polymeric substances of cyanobacterium Microcystis aeruginosa using fractionation procedure and parallel factor analysis[J]. Water Research, 2013,47:2005-2014.
[12]	李欣,马建薇.生物可降解溶解性有机碳(BDOC)降解动力学研究[J]. 哈尔滨工业大学学报, 2005,37(9):1183-1184,1199. Li X, Ma J W. Dynamic method for determination of the biodegradable dissolved organic carban (BDOC) in drinking water[J]. Journal of Harbin Institute of Technology, 2005,37(9):1183-1184, 1199.
[13]	Hammes F A, Egli T. New method for assimilable organic carbon determination using flow-cytometric enumeration and a natural microbial consortium as inoculum[J]. Environmental science & technology, 2005,39(9):3289-3294.
[14]	赵宗宇,文刚,黄廷林.预氯化含蓝藻水过程中AOC变化规律及作用机理[J]. 中国给水排水, 2016,32(3):46-51. Zhao Z Y, Wen G, Huang T L. Variation of AOC during pre-chlorination of algae-containing water and its mechanism[J]. China Water & Wastewater, 2016,32(3):46-51.
[15]	杨杰,董志勇,柳文菁,等.孔板与文丘里组合空化杀灭水中病原微生物[J]. 中国环境科学, 2018,38(10):3755-3760. Yang J, Dong Z Y, Liu W J, et al. Killing pathogenic microorganism in raw water by hydrodynamic cavitation due to orifice plates and venturi[J]. China Environmental Science, 2018,38(10):3755-3760.
[16]	宋晓娜,于涛,张远,等.利用三维荧光技术分析太湖水体溶解性有机质的分布特征及来源[J]. 环境科学学报, 2010,30(11):2321-2331. Song X N, Yu T, Zhang Y, et al. Distribution characterization and source analysis of dissolved organic matter in Taihu Lake using a three dimensional fluorescence excitation-emission matrix[J]. Acta Scientiae Circumstantiae, 2010,30(11):2321-2331.
[17]	贺玲.藻源有机质的分离、表征及其生物稳定性研究[D]. 赣州:江西理工大学, 2016. He L. The separation, characterization and biological stability study of algal organic matters[D]. Ganzhou:Jiangxi University of Technology, 2016.
[18]	危有达,马军,文刚.藻类有机物的特性研究[J]. 供水技术, 2015,9(3):9-14. Wei Y D, Ma J, Wen G. Characteristics of algal organics[J]. Water Technology, 2015,9(3):9-14.
[19]	Zhang W H, Wu J, Weng L Y, et al. An improved phenol-sulfuric acid method for the determination of carbohydrates in the presence of persulfate[J]. Carbohydrate Polymers, 2020,227:115332.
[20]	GB5749-2006生活饮用水卫生标准[S]. GB5749-2006 Standards for drinking water quality[S].
[21]	方晶云.蓝藻细胞及藻类有机物在氯化消毒中副产物的形成机理与控制[D]. 哈尔滨:哈尔滨工业大学, 2009. Fang J Y. Formation and control of disinfection by-products in chlorination of B-G algae and algal organic matiter (AOM)[D]. Harbin:Harbin Institute of Technology, 2009.
[22]	杨晓萍.饮用水中混浊度对消毒效率和细菌存活的影响[J]. 国外医学(卫生学分册), 1983,3:184-185. Yang X P. Effect of turbidity in drinking water on disinfection efficiency and bacterial survival[J]. Foreign Medicine (Hygiene), 1983,3:184-185.
[23]	李爽,张晓健,范晓军,等.以AOC评价管网水中异养菌的生长潜力[J]. 中国给水排水, 2003,19(1):46-49. Li S, Zhang X J, Fan X J, et al. Evaluation of the growth potential of heterotrophic bacteria in pipe network water by AOC[J]. China Water & Wastewater, 2003,19(1):46-49.
[24]	Escobar I C, Randall A A. Assimilable organic carbon (AOC) and biodegradable dissolved organic carbon (BDOC):Complementary measurements[J]. Water Research, 2001,35(18):4444-4454.
[25]	战楠,黄毅,饶竹,等.双电极法现场快速检测地下水和湖水中碳酸氢根和碳酸根[J]. 分析化学, 2016,3:355-360. Zhan N, Huang Y, Rao Z, et al. Fast detection of carbonate and bicarbonate in groundwater and lake water by coupled ion selective electrodes[J]. Chinese Journal of Analytical Chemistry, 2016,3:355-360.
[26]	傅平青,刘丛强,吴丰昌.溶解有机质的三维荧光光谱特征研究[J]. 光谱学与光谱分析, 2005,25(12):2024-2028. Fu P Q, Liu C Q, Wu F C. Three-dimensional excitation emission matrix fluorescence spectroscopic characterization of dissolved organic matter[J]. Spectroscopy and Spectral Analysis, 2005,25(12):2024-2028.
[27]	刘艳静,徐慧,焦茹媛,等.原水有机物特性对混凝过程和出水余铝的影响研究[J]. 中国给水排水, 2019,35(5):55-59. Liu Y J, Xu H, Jiao R Y, et al. Effects of characteristics of organic matter in source water on coagulation process and residual aluminum[J]. China Water & Wastewater, 2019,35(5):55-59.
[28]	李百玲.供水管网中耐氯菌种群多样性及耐氯机制研究[D]. 哈尔滨:哈尔滨工业大学, 2015. Li B L. Community diversity and resistance mechanism of the chlorine-resistant bacteria in drinking water distribution system[D]. Harbin:Harbin Institute of Technology, 2015.
[29]	Wang Y H, Wu Y H, Tong X, et al. Chlorine disinfection significantly aggravated the biofouling of reverse osmosis membrane used for municipal wastewater reclamation[J]. Water Research, 2019,154:246-257.
[30]	刘博,王运宏,巫寅虎,等.紫外线消毒对再生水中微生物生长分泌特性的影响[J]. 环境工程, 2020,38(2):28-34. Liu B, Wang Y H, Wu Y H, et al. Effect of ultraviolet disinfection on growth and secretion characteristics of microorganism in reclaimed water[J]. Environmental Engineering, 2020,38(2):28-34.
[31]	曹煜成,文国樑,李卓佳,等.池塘水体微生物群落代谢活性的动态变化及其与水质的关系[J]. 安全与环境学报, 2015,15(1):280-284. Cao Y C, Wen G L, Li Z J, et al. On the correlation between the water quality and the dynamic variation of the bacterial community metabolism in tilapia cultured pond[J]. Journal of Safety and Environment, 2015,15(1):280-284.
[32]	Xiao R, Yang X, Li M, et al. Investigation of composition, structure and bioactivity of extracellular polymeric substances from original and stress-induced strains of Thraustochytrium striatum[J]. Carbohydrate Polymers, 2018,195:515-524.
[33]	郑泽嘉,李伟光,张淑梅,等.碳源对耐低温哈尔滨不动杆菌HITLi7T氨氮代谢以及胞外分泌物的影响[J]. 环境科学学报, 2019,39(12):3950-3955. Zheng Z J, Li W G, Zhang S M, et al. Effect of carbon sources on ammonia removal and extracellular polymeric substances secretion of Acinetobacter harbinensis HITLi7T[J]. Acta Scientiae Circumstantiae, 2019,39(12):3950-3955.
[34]	叶天然.水华蓝藻胞外聚合物的微生物降解特性及强化分解[D]. 北京:中国科学院大学, 2017. Ye T R. Biodegradation characteristics and enhanced decomposition of extracellular polymers of cyanobacteria[D]. Beijing:University of Chinese Academy of Sciences, 2017.