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河流悬浮物对重金属镉的迁移作用主要是吸附和沉积过程。在各种单一组分吸附实验大量进行的基础上,近年来开展了一些有关吸附的化学模拟研究。粘土矿物和有机物共同对重金属污染物的吸附研究也已有一些报告,但是所得结论不尽一致。多组分吸附剂的吸附规律研究仍很缺乏。 本文研究腐植酸和粘土矿物共同对镉的吸附规律,并结合电子显微形态的考察对其
The transport of heavy metal cadmium by suspended solids in river is mainly adsorption and sedimentation. On the basis of a large number of single-component adsorption experiments carried out in recent years to carry out a number of chemical adsorption studies on adsorption. Some reports on the adsorption of heavy metal pollutants by clay minerals and organic compounds have also been reported, but the conclusions drawn are not consistent. Multi-component adsorbent adsorption law is still lacking. In this paper, the adsorption of cadmium by humic acid and clay minerals was studied. Combined with the investigation of electron microscopic morphology,