Department of Chemistry, University of Tulsa, Tulsa, OK, 74104-3189, 918-631-3090
The design of a "washing" process for the removal and recovery of toxic metals from contaminated soil requires in-depth knowledge of the speciation of the metals. In addition to being present in their original forms (e.g. oxides particulates emitted by a smelter), the contaminating metals may come to be associated with a variety of solid phases commonly present in the soil. A sequential chemical extraction procedure has been used to characterize lead and cadmium speciation in soil collected in the vicinity of a zinc smelter that was in operation for 70 years.
soil, lead, cadmium, speciation
This paper is from the Proceedings of the 10th Annual Conference on Hazardous Waste Research 1995, published in hard copy and on the Web by the Great Plains/Rocky Mountain Hazardous Substance Research Center.