自来水厂水处理过程中碘代消毒副产物调查

发布时间：2018-06-07 05:36

本文选题：碘代消毒副产物 + 碘乙酸　；参考：《环境与健康杂志》2015年12期

【摘要】：目的调查采用氯化消毒工艺的自来水厂水处理过程中碘乙酸与碘仿的生成变化,为健康风险评估和水处理工艺改进提供依据。方法分别于丰水期(2014年7月)、平水期(2014年10月)与枯水期(2015年2月),采集南方某自来水厂原水、各处理环节和出厂水水样,测定碘乙酸(iodoacetic acid,IAA)和碘仿(iodoform,IF)的浓度。结果除枯水期水样未检出碘仿外,原水、各处理环节、出厂水中均可检测到碘乙酸和碘仿。原水中碘乙酸浓度为0.003~0.078μg/L,碘仿浓度为未检出~0.036μg/L;预加氯后碘乙酸和碘仿浓度升高最为明显,浓度分别为0.046~0.145μg/L和0.072~0.190μg/L;出厂水中碘乙酸浓度为0.035~0.145μg/L,碘仿浓度为0.012~0.106μg/L。水中碘乙酸和碘仿浓度具有一定季节变化规律,碘乙酸在枯水期浓度较高,而碘仿在丰水期浓度较高。结论采用氯化消毒工艺的自来水厂水处理过程中碘代消毒副产物的监测不容忽视。
[Abstract]:Objective to investigate the changes of iodoacetic acid and iodoform in water treatment of waterworks with chlorination disinfection process, and to provide basis for health risk assessment and water treatment process improvement. Methods the concentrations of iodoacetic iodoformin iodoform iodoforma and iodoacetic iodoformin iodoform iodoforma were determined in high water period (July 2014), flat water period (October 2014) and low water period (February 2015). Results Iodoacetic acid and iodoform could be detected in raw water, raw water and factory water except in dry season. The concentration of iodoacetic acid in raw water was 0.003 ~ 0.078 渭 g / L, the concentration of iodoform was 0.036 渭 g / L, the concentration of iodoacetic acid and iodoform was 0.046 ~ 0.145 渭 g / L and 0.072 ~ 0.190 渭 g / L respectively, the concentration of iodoacetic acid was 0.0350.145 渭 g / L and the concentration of iodoform was 0.012 ~ 0.106 渭 g 路L ~ (-1). The concentration of iodoacetic acid and iodoform in water has a certain seasonal variation law. The concentration of iodoacetic acid is higher in the dry season, but the concentration of iodoform is higher in the high water period. Conclusion the monitoring of iodine disinfection by-products in water treatment of water plant by chlorination can not be ignored.
【作者单位】：复旦大学公共卫生学院环境卫生学教研室公共卫生安全教育部重点实验室健康风险预警治理协同创新中心;绍兴市水环境科学研究院有限公司;绍兴市制水有限公司;
【基金】：国家卫生计生委卫生公益性行业科研专项(201302004)
【分类号】：R123.6

【相似文献】