沉积物粒度对重金属吸附的影响

PARTICLE-SIZE EFFECTS OF WEI RIVER SEDIMENT ON HEAVY METAL ADSORPTION

本文报道了渭河沉积物对重金属的吸附特性.结果表明,渭河沉积物吸附重金属的粒度效应决定于不同粒度沉积物的物质构成和颗粒表面特性,该效应是由沉积物对重金属的吸附速率的差别来体现的.不同粒度所决定的颗粒比表面积的差异不是影响重金属吸附粒度效应的主要因素.

experimental studies have been carried out on the characteristics of Wei River sediment adsorbing heavy metals. The results indicate that particle -size effects of the sediment adsorbing heavy metals are determinby mineral constituteion and surface characteristic of the sediment. The effects are reflected by the rate differences of the sediment adsorbing heavy metals. The difference of particlic s specifie surface area depending on particle size is not main factor affecting the particle-size effects.