The Role of NOMs in Stabilizing and Destabilizing Clay Particles in Aquatic Environment

摘要

Clay minerals are an important constituent of soils and it could disperse in aquatic environment which indicates they would have interaction with natural organic matters (NOMs). Although there is some researchers work on the aggregation kinetic process of clay particles in the presence of NOMs [1, 2], few study is focus on the change caused by varying concentration of NOMs. This study examined the hydrodynamic diameters of Na-kaolnite particles under varying concentration of TA and electrolytes. The existing of high concentration NOMs could destabilize the dispersed Na-kaolnite particles in aquatic environment while the low concentrations display in an opposite way.