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2013-2016年某市市政供水出厂水消毒副产物监测结果分析 [中文引用][英文引用]

Analysis on Levels of Disinfection Byproducts in Municipal Water Supplies of a City in 2013-2016

作者:梁锡念  黄隽  何伦发  邓春拓  郭艳  鲁婧婧 
作者(英文):LIANG Xinian  HUANG Jun  HE Lunfa  DENG Chuntuo  GUO Yan  LU Jingjing 
单位(英文): 
分类号:R187
出版年·卷·期(页码):2017·7·第4期(284-290)
DOI:
-----摘要:-------------------------------------------------------------------------------------------

目的 了解某市市政供水消毒副产物污染状况,为控制消毒副产物提供依据。方法 2013-2016年以某市正常供水的全部市政水厂为监测对象,参照《生活饮用水卫生标准》(GB 5749-2006)进行出厂水全项目水质监测。采用描述性流行病学的方法,按不同年份、水源类型、消毒工艺、设施规模、设施水平、水期整理消毒副产物监测数据并分析其差异。结果 12项指标中二氯甲烷和四氯化碳未检出,可检出的指标检出率12.88%~100.00%。因消毒副产物超标导致的超标数为37.50%(6/16)。选取三氯甲烷和三卤甲烷、二氯乙酸和三氯乙酸作标志性指标分别比较:江河水源均高于水库水源(均P<0.05);过滤前加氯高于过滤后加氯,其中三氯甲烷(P<0.01)、三卤甲烷、三氯乙酸(均P<0.05)差异有统计学意义;基本趋势设施规模级数越高消毒副产物越高,其中三氯甲烷、三卤甲烷、三氯乙酸差异有统计学意义(P均<0.01);不同设施水平,设施水平越高消毒副产物越高,其中三氯甲烷、三卤甲烷差异有统计学意义(P均<0.01);不同消毒剂,液氯高于二氧化氯,其中三氯甲烷、三卤甲烷、三氯乙酸(P均<0.01)、二氯乙酸(P<0.05)差异有统计学意义;浑浊度越低消毒副产物越高,其中三氯甲烷(P<0.01)、三卤甲烷(P<0.05)差异有统计学意义;不同水期,二氯乙酸差异有统计学意义(P<0.01)。结论 某市市政供水消毒副产物污染整体属低水平。二氧化氯消毒对于供水规模较少的水厂不宜采用。减小V型滤池滤料石英砂粒径,或成为最有效控制饮用水消毒副产物切实可行的水处理工艺措施。

-----英文摘要:---------------------------------------------------------------------------------------

Objective To explore the levels of disinfection byproducts in municipal water supplies, and provide the basis for controlling the contamination of disinfection byproducts.Methods The water quality monitoring of all municipal waterworks in the city was carried out in 2013-2016 according to the national standards. The analysis of data was based on different years, forms of water supply, disinfection processes, facility scales, plant levels and seasons of water supply to find out the cause of unqualification by descriptive epidemiological method. Results Among 12 indexes, dichloromethane and carbon tetrachloride were not detected in water samples, and the detection rate of other 10 indexes were varied from 12.88% to 100.00%. The overall unqualification rate of disinfection byproducts was 37.50%.As chloroform,trihalomethanes,dichloroacetic acid and trichloroacetic acid were selected as symbolic indexes to compare the unqualification of water samples, the unqualification rate of river-source water were higher than those of reservoir-source water; adding chlorine before filtration was higher than that after filtration; and the difference of chloroform and trihalomethanes were statistically significant. Disinfection byproducts were more produced in larger scale and higher level facilities, and the difference of chloroform and trihalomethanes were statistically significant. In the comparison of different disinfectants, the residual byproducts in water samples disinfected by liquid chlorine was higher than those by chlorine dioxide, and the differences of chloroform, trihalomethanes, dichloroacetic acid and trichloroacetic acid were all statistically significant. More disinfection byproducts was discovered in water with lower turbidity and the differences of chloroform, trihalomethane were statistically significant. In different seasons of water supply, only the difference of dichloroacetic acid in water was statistically significant. Conclusions In general the contamination of disinfection byproducts in municipal water supplies of the city was low. Because the uncertainty of using chlorine dioxide for disinfection could not be suitable for small scale waterworks without reliable management; and supervision should be strengthened by relevant authorities. Reducing the particle size of sand in V-type filter would become the most effective and practical measures to control disinfection byproducts in drinking water.

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若需在您的论文中引用此文,请按以下格式著录参考文献:
中文著录格式: 梁锡念,,黄隽,,何伦发,,邓春拓,,郭艳,,鲁婧婧.2013-2016年某市市政供水出厂水消毒副产物监测结果分析.环境卫生学杂志.2017;7(4):284-290.
英文著录格式: LIANG,Xinian,,HUANG,Jun,,HE,Lunfa,,DENG,Chuntuo,,GUO,Yan,,LU,Jingjing.Analysis on Levels of Disinfection Byproducts in Municipal Water Supplies of a City in 2013-2016..2017;7(4):284-290.

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