水利水电科技进展2013，Vol.33Issue(1)：41-44,4.DOI:10.3880/j.issn.1006-7647.2013.01.009
长江常熟段水溶解性有机物分子质量分布特性
Distribution characteristics of DOM molecular mass in Changshu Section of the Yangtze River
摘要
Abstract
To study the variation characteristics and influence factors of dissolved organic matter (DOM) and UV254 in the Changshu Section of the Yangtze River, physical classification of DOM was carried out by the method of ultra-filtration. The results show that the water quality in the Changshu Section of the Yangtze River is good and meets the standard of drinking water. CODMn, NH3 -N, and TP content of the river water meet the surface water quality standard Ⅲ. During November 2008 to September 2009, the contents of DOC and UV254 with a molecular mass lower than 1kDa are 64. 3% and 45. 2% , respectively, suggesting that the main DOM is organic matter with a smaller molecular mass. The contents of DOC and UV254 with the molecular mass of 3 ~ 10kDa increase significantly during the flood season.关键词
水源水/水溶解性有机物/分子质量分布/超滤膜法Key words
source water/ dissolved organic matter/ molecular mass distribution/ ultra-filtration method分类
资源环境引用本文复制引用
刘慧,于海宽,王为木..长江常熟段水溶解性有机物分子质量分布特性[J].水利水电科技进展,2013,33(1):41-44,4.基金项目
国家自然科学基金(51109060) （51109060）
中央高校基本科研业务费专项(2009B09114,2010B02114) （2009B09114,2010B02114）
