Concurrent sorption of heavy metal pollutants of sediment of different grain sizes

摘要

Generally, sediment in natural rivers is non-uniform, and sorption capaci- ties of different grain sizes vary greatly. In order to quantitatively describe sorption of heavy metal pollutant by sediment in natural rivers, the concurrent sorption by sediment of different grain sized should be studied. By combining systematic laboratory experiments and theoretical analysis the concurrent equilibrium sorption model and the concurrent sorp- tion dynamic model by sediment of different grain sizes have been set up.