韩江滤后水次氯酸钠消毒过程有机副产物生成规律研究  

Formation of Organic By-products during Sodium Hypochlorite Disinfection in Filtered Water from Hanjiang River

作　　者：吴悦[1] 张积洋 武振东 温立华 温鸿奕 Wu Yue;Zhang Jiyang;Wu Zhendong;Wen Lihua;Wen Hongyi(Department of Natural Sciences,Shantou Polytechnic,Shantou 515041,China;Architectural Design and Research Institute of South China University of Technology,Guangzhou 510640,China;Shanghai Municipal Engineering Design Institute(Group)Co.,Ltd.,Shanghai 200092,China)

机构地区：[1]汕头职业技术学院自然科学系,广东汕头515041 [2]华南理工大学建筑设计研究院有限公司,广东广州510640 [3]上海市政工程设计研究总院(集团)有限公司,上海200092

出　　处：《环境科学与管理》2023年第3期24-28,共5页Environmental Science and Management

基　　金：2020年广东省科技专项资金(“大专项+任务清单”)项目(200109215871163);汕头职业技术学院2022年大学生创新创业训练计划项目(2022-19);2021年汕头职业技术学院院级科研课题(SZK2021Z02);第二批广东省高职院校高水平专业群建设汕头职业技术学院环境工程技术专业群(GSPZYQ2021004)。

摘　　要：以汕头市某自来水厂滤后出水为原水,研究韩江滤后水次氯酸钠消毒过程有机副产物生成规律,考虑反应时间和消毒剂用量对次氯酸钠消毒过程几种有机副产物生成量的影响。结果表明,反应60 min时次氯酸钠消毒出水THMs、DCM、CTC、DCAA、TCAA和甲醛质量浓度远低于《生活饮用水卫生标准》2006版和2022版标准限值;TCM、DCBM和DBCM在60 min内的生成量持续增加;反应时间60 min时,有效氯投加量越大,余氯质量浓度越高,THMs总生成量也呈现增加趋势;Br_(THMs)随有效氯投加量的增加而增加,并在投加量为4.68 mg·L^(-1)时达最高值。因此,反应时间、有效氯投加量对THMs总生成量有显著的促进作用。Taking the filtered water of a waterworks in Shantou as raw water,organic by-products this paper studies the formation during sodium hypochlorite disinfection in filtered water from Hanjiang River.Effects of reaction time and disinfectant dosage on organic by-products formation in the process of sodium hypochlorite disinfection were considered.The results show that after 60 minutes of reaction,the mass concentrations of THMs,DCM,CTC,DCAA,TCAA and formaldehyde in the sodium hypochlorite disinfection effluent were far lower than the standard limits of the 2006 and 2022 versions of the sanitary standards for drinking water.The formation of TCM,DCBM and DBCM increased continuously within 60 min.When the reaction time was 60 min,the larger the amount of effective chlorine was added,the higher the mass concentration of residual chlorine was.The total amount of THMs also showed an increasing trend.Br_(THMs) increased with the increase of effective chlorine dosage,and reached the highest value when the dosage was 4.68 mg·L~(-1).Therefore,reaction time and effective chlorine dosage significantly promote the total production of THMs.

关 键 词：韩江滤后水 次氯酸钠消毒 有机副产物 三卤甲烷 生成规律 

分 类 号：X522[环境科学与工程—环境工程]