沈阳大学学报（自然科学版）2018，Vol.30Issue(1)：13-17,5.
粒径和浓度对胶体颗粒在多孔介质中迁移的影响
Effect of Particle Size and Concentration on Migration of Colloids in Porous Media
摘要
Abstract
Column experiments were employed to study the effect of particle size and concentration on the migration of colloids in simulated aquifer environment.Polystyrene latex microspheres were used as a colloid model,and three different particle sizes(50,200 and 500 nm)and two colloid concentrations(2 and 20 mg·L -1)were tested.Experimental results indicate that,colloid transport demonstrated a clean bed deposition process at 2 mg ·L -1colloid concentration while it shifted to a transient process described by colloidal blocking at 20 mg · L -1colloid concentration.Thusly, increased colloid concentration may promote colloid movement.The results show that,in both the clean bed deposition and blocking processes,the mobility of colloids increased with increasing particle size.关键词
胶体迁移/粒径/浓度/饱和多孔介质Key words
colloidal migration/particle size/concentration/saturated porous media分类
资源环境引用本文复制引用
张博文,杨新瑶,杨悦锁,姜鸿喆..粒径和浓度对胶体颗粒在多孔介质中迁移的影响[J].沈阳大学学报（自然科学版）,2018,30(1):13-17,5.基金项目
国家自然科学基金资助项目(41471409) （41471409）
黑龙江省国土厅资助项目(2200220170022). （2200220170022）
