O_3-BAC深度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 O_3-BAC advanced treatment process

作　　者：蔡广强[1] 卢小艳[1] 张金松[1] 刘丽君[1] 黄河洵[1] 尤作亮[1] 刘嘉祺[1] 曲颖 

机构地区：[1]深圳市水务(集团)有限公司,深圳518031

出　　处：《给水排水》2017年第12期35-40,共6页Water & Wastewater Engineering

基　　金：国家水体污染控制与治理科技重大专项(2015ZX07406-004)

摘　　要：以我国南方某O_3-BAC深度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)进行每月一次为期1年的监测,同时对温度较高的夏季水样予以极性分离,以明晰O_3-BAC深度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,O_3-BAC深度处理工艺原水TOC、UV_(254)、CHFP均呈现一定的季节性变化趋势,高温季节(4~9月)相对较高,范围分别为1.03~2.13mg/L、0.024 1~0.053 5cm^(-1)、17.49~41.40μg/L;O_3-BAC深度处理工艺对TOC、UV_(254)、CHFP去除率范围分别为31.54%~58.83%、46.59%~79.53%、46.20%~75.24%,混凝沉淀和BAC单元在去除有机物和CHFP中起主要作用。此外,臭氧化作用增加了亲水性有机物含量使CHFP升高,同时亦强化了BAC单元对CHFP的去除作用。To clarify the capability of O3-BAC advanced treatment process in organic matter and chloral hydrate formation potential（CHFP）removal and the organic matter＇s polarity change during the treatment process,the organic matter and CHFP in a water treatment plant with the O3-BAC process in southern China were monitored monthly for one year,while water sample in summer was fractioned according to the polarity.The results revealed that TOC,UV（254） and CHFP in raw water all presented a trend of seasonal variation and high in high temperature season（from April to September）,ranging from 1.03~2.13 mg/L,0.024 1~0.053 5 cm^（-1） and 17.49~41.40μg/L,respectively.Their removal efficiencies were 31.54%~58.83%,46.59%~79.53% and 46.20%~75.24%by the O3-BAC process,respectively.Coagulation-sedimentation and BAC played an essential role in the removal of organic matter and CHFP.Ozonisation increased the content of hydrophilic organics,which increased the CHFP but also enhanced its subsequent removal by BAC.

关 键 词：O3-BAC深度处理工艺 有机物 消毒副产物 三氯乙醛生成潜能 去除能力 

分 类 号：TU991.2[建筑科学—市政工程]