原子能科学技术Issue(6)：979-983,5.DOI:10.7538/yzk.2015.49.06.0979
腐殖酸对 Re（Ⅶ）在高庙子膨润土中扩散的影响研究
Effect of Humic Acid on Re (Ⅶ) Diffusion in GMZ Bentonite
摘要
Abstract
Humic acid ,a kind of organic matter ,is ubiquitous in environment ,w hich may affect the migration of radionuclides by complexation and redox reaction .The effect of humic acid on the diffusion of Re(Ⅶ) in GMZ bentonite was investigated at different bentonite dry densities and humic acid contact time through diffusion method . T he effective diffusion coefficient De and capacity factor αwere obtained .The De decreases from 1.8 × 10 -11 m2/s to 0.59 × 10 -11 m2/s with the dry density increasing from 1 600 kg/m3 to 1 800 kg/m3 . T he De increases from 0.59 × 10-11 m2/s to 0.83 × 10-11 m2/s with the humic acid contact time increasing from 0 day to 60 days .All the αvalues are less than the total porosities ,which implies that Re(Ⅶ ) may be still the anion species in diffusion in compacted bentonite in presence of humic acid .关键词
Re(Ⅶ)/扩散/腐殖酸/膨润土Key words
Re(Ⅶ)/diffusion/humic acid/bentonite分类
能源科技引用本文复制引用
赵耀林,王海,罗勇,富宝锋,伍涛,贺朝会..腐殖酸对 Re（Ⅶ）在高庙子膨润土中扩散的影响研究[J].原子能科学技术,2015,(6):979-983,5.基金项目
国家自然科学基金资助项目 （）
