摘要
用连续碱提取具有不同结构组成特征的腐殖酸级分 ,考察了分子结构在腐殖酸对菲吸附行为中的影响 ,结果表明 :随着腐殖酸中元素碳、表观分子量以及脂肪碳含量的增加 ,腐殖酸对菲的吸附能力和吸附的非线性特征都呈增强趋势 ;相反 ,随着腐殖酸中元素氧和芳香碳含量的增加 ,腐殖酸对菲的吸附能力和吸附的非线性都逐渐减弱 。
Humic acids obtained by progressively base extraction exhibited heterogeneous sturctural characteristics.Their effect on the sorption of hydrophobic organic pollutant—phenanthrene was studied in this paper.The results indicated that with the increasing of the elemental content of carbon,the molecular weight and aliphatic carbon content,the sorption potential for phenanthrene enhanced and the sorption exhibited more nonlinearity charactristils.But the relationship is inverse for the amount of oxygen and aromatic carbon content.
出处
《环境化学》
CAS
CSCD
北大核心
2004年第4期381-386,共6页
Environmental Chemistry
基金
国家自然科学基金资助项目 ( 4 0 0 72 0 94
40 1 2 80 0 2 )
