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常规处理工艺对有机物及三氯乙醛生成潜能的去除

Removal of Organic Matter and Chloral Hydrate Formation Potential by Conventional Treatment Process

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【作者】 蔡广强张金松刘丽君卢小艳黄河洵尤作亮刘嘉祺曲莹

【Author】 CAI Guang-qiang;ZHANG Jin-song;LIU Li-jun;LU Xiao-yan;HUANG He-xun;YOU Zuo-liang;LIU Jia-qi;QU Ying;Shenzhen Water Affairs <Group> Co.Ltd.;

【机构】 深圳市水务<集团>有限公司

【摘要】 以我国南方某常规处理工艺水厂为研究对象,对工艺过程中有机物及三氯乙醛生成潜能(CHFP)进行为期一年每月一次的监测,同时对温度较高的夏季水样予以极性分离,以明晰常规处理工艺对有机物及CHFP的去除能力与工艺过程中有机物的极性变化等。结果表明,原水TOC、UV254、CHFP均呈现一定的季节性变化,高温季节(4月—9月)相对较高,分别为1.043.15mg/L、0.023 40.057 7 cm-1、24.2943.43μg/L;常规处理工艺对TOC、UV254、CHFP的去除率分别为26.00%59.68%、35.25%77.20%、34.12%77.05%,混凝沉淀是去除有机物和CHFP的主要工艺单元;常规处理工艺对亲水性有机物的去除作用弱于疏水性有机物,是其对CHFP去除作用较弱的原因。

【Abstract】 To investigate the removal capacity for organic matter and chloral hydrate formation potential( CHFP) by the conventional water treatment process and the polarity variation in organics during the process,CHFP was measured monthly for a year at a drinking water treatment plant using a conventional water treatment process in South China. Meanwhile,water samples in summer were fractioned according to the polarity. The results revealed that TOC,UV254 and CHFP in raw water all demonstrated seasonal variations—high concentrations in warm season( from April to September),in ranges of 1. 04-3. 15 mg/L,0. 023 4-0. 057 7 cm-1 and 24. 29-43. 43 μg/L,respectively. The removal rates by conventional water treatment process were 26. 00%-59. 68%,35. 25%-77. 20% and 34. 12%-77. 05%,respectively,in which coagulation sedimentation played an essential role in the removal of organic matter and CHFP. In addition,the low removal rate in CHFP was because the conventional water treatment process had lower removal effect on hydrophilic organic compounds comparing to hydrophobic organic compounds.

【基金】 国家水体污染控制与治理科技重大专项(2015ZX07406-004)
  • 【文献出处】 中国给水排水 ,China Water & Wastewater , 编辑部邮箱 ,2017年19期
  • 【分类号】TU991.2
  • 【被引频次】14
  • 【下载频次】135
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