摘要
通过小型实验和液相色谱分析 ,研究了水中天然有机物的臭氧氧化反应的特性和反应前后有机物分子量的变化情况 .结果表明 ,臭氧氧化的主要功效不在于降低以TOC为代表的水中有机物总量 ,而是改变了有机物的性质和结构 .通过臭氧氧化处理 ,水中大分子有机物分解氧化为小分子有机物 ,且具有饱和构造的有机物成分明显增加 .
Based on the laboratory experiment and HPLC(High Performance Liquid Chromatography)analysis,the characteristics of ozonation of aquatic humic substances were studied with an evaluation of the molecular weight distribution before and after ozonation.The results show that ozonation does not bring about a substantial removal of total organic carbon (TOC),but a change in the chara-cteristics and stucture of organic substances.After ozonation,larger molecules are broken into smaller molecules and in the meanwhile,the portion of organic substances with saturate structure has increased.
出处
《环境化学》
CAS
CSCD
北大核心
2002年第3期250-263,共14页
Environmental Chemistry
基金
陕西省自然科学基金资助项目 (项目编号 :2 0 0 0C0 7)
