活性无烟煤滤池对消毒副产物前体物的去除特性  

REMOVAL CHARACTERISTICS OF DISINFECTION BY-PRODUCTS PRECURSORS BY BIOLOGICAL FILTER WITH ACTIVATED ANTHRACITE

作　　者：雷颖[1] 韦德权 王凌云[1] 胡江咏 张锡辉[1] 陶益[1] 

机构地区：[1]清华大学深圳研究生院环境工程与管理研究中心,广东深圳518055 [2]新加坡国立大学土木与环境工程系,新加坡119260

出　　处：《环境工程》2013年第S1期141-146,共6页Environmental Engineering

基　　金：国家科技重大专项支持(2008ZX07423);广东省基金(2012B030800001);水利部公益科研项目(201201033)

摘　　要：以东江下游季节性污染原水为对象,研究了活性无烟煤生物过滤工艺及其与混凝沉淀组合工艺对消毒副产物前体物的去除特性。建立了液相色谱—串联质谱技术分析水中9种卤乙酸同时定量检测方法,9种卤乙酸检测限为0.016~2.3μg/L,空白加标回收率为90.5~109.8%,相对标准偏差为3.12~9.04%。实验结果表明,活性无烟煤滤池生物过滤对消毒副产物前体物的去除效果显著,对三卤甲烷、卤乙酸和水合三氯乙醛前体物的去除率分别为40.2%、39.2%和34%,其中三氯甲烷、二氯乙酸和三氯乙酸前体物的去除率分别是48.2%、41.1%和38.0%,而传统石英砂滤池对应的去除率则为-10.0%~3.6%。活性无烟煤生物滤池对二氯乙酸和三氯乙酸前体物降解效果相当,而混凝沉淀的则对前者去除效果较三氯乙酸前体物更为显著。This paper investigated the removal characteristics that activated anthracite biological filter and coagulation/sedimentation removed disinfection by-products precursors in the seasonally polluted raw water from the Dongjiang River downstream. An accurate method was established for measurement of 9 haloacetic acids by liquid chromatography-tandem mass spectrometry. Under the optimized conditions,relative standard deviation were 3. 12% ~9. 04%,standard added recoveries were 90. 5%~109. 8%,detection limits were 0. 016~2. 3 μg/L for 9 haloacetic acids. The removal efficiency for trihalomethanes,haloacetic acids and chloral hydrate precursors reached 40. 2%,39. 2% and 34. 0% respectively,specifically,48. 2%,41. 1% and 38. 0% for chloroform,dichloroacetic acid and trichloroacetic acid precursors,whereas conventional sand filter could just remove-10. 0%~3. 6% of above-mentioned DBP precursors. Activated anthracite biological filter had an equal effect on biodegradation of dichloroacetic acid and trichloroacetic acid precursors,and coagulation/sedimentation removed trichloroacetic acid precursors more effectively than dichloroacetic acid precursors.

关 键 词：生物过滤 活性无烟煤 消毒副产物 前体物 

分 类 号：X703[环境科学与工程—环境工程]