太湖水源水中溶解性有机物特性分析  

Characteristics of Dissolved Organic Matter in Source Water of Taihu Lake

作　　者：周业凯[1,2] 陈卫[1,2] 陶辉[1,2] 杨嘉玮[1,2] 

机构地区：[1]河海大学浅水湖泊综合治理与资源开发教育部重点实验室,江苏南京210098 [2]河海大学环境学院,江苏南京210098

出　　处：《中国给水排水》2017年第5期46-49,共4页China Water & Wastewater

基　　金：国家自然科学基金重点资助项目(51438006);江苏高校优势学科建设工程资助项目

摘　　要：以太湖水源水为研究对象,分析有机物含量及其特性。研究结果表明,太湖水源水中DOC的浓度在3.95~6.31 mg/L之间,且自东南向西北呈逐渐增加的趋势;6个水源地原水的DOM分子质量及亲疏水性分布情况类似,均以分子质量<1 ku的小分子组分为主(比例超过40%),亲水性组分略大于疏水性组分,其中极性亲水的DOM所占比例最高,为(30.01±1.03)%;太湖水源水中DOM的三维荧光峰包括溶解性微生物代谢产物荧光峰和芳香蛋白类荧光峰;荧光区域积分法计算结果显示,芳香蛋白类物质和溶解性微生物代谢产物所占比例较高,富里酸类物质在太湖水源水中也占有一定的比例,而腐殖酸类物质在水源水中的含量很少。The content and characteristics of the organic matter in six kinds of source water of Taihu Lake were analyzed. The results showed that DOC of source water ranged from 3.95 to 6.31 rag/ L, and increased gradually from the southeast to northwest. The distribution of DOM molecular weight, hydrophilicity and hydrophobicity was similar in six kinds of source water. The molecular weight fraction of less than 1 ku accounted for the major part （ more than 40% ）. Hydrophilic components were higher than the hydrophobic components, and polar hydrophilic DOM accounted for （30.01 ± 1.03）%. There were mainly two kinds of three-dimensional fluorescence peaks of DOM including soluble microbial me- tabolites and aromatic protein substances. The calculation results according to the fluorescence regional integration method showed that the proportions of aromatic protein substances and soluble microbial me- tabolites were higher. FA-like substances accounted for a certain proportion, and the content of HA-like substances was low.

关 键 词：太湖 水源水 溶解性有机物 分子质量分布 亲疏水性 三维荧光 

分 类 号：TU991.2[建筑科学—市政工程]