The Role of Iron Sulfides in Controlling Trace Heavy Metals in Anaerobic Sediments: Oxidative Dissolution of Ferrous Monosulfides and the Behavior of Associated Trace Metals.

摘要

The study of the kinetics of oxidation of the ferrous monosulfide mackinawite and the fate of the associated heavy metals are important to a better understanding of the processes and mechanisms controlling the release, transport and retention of heavy metals in natural aquatic systems. This project undertook a detailed study of several selected aspects of the aqueous chemistry of heavy metals and of the oxidative dissolution of FeS(s) and the fate of associated heavy metals both during and after the oxidation reaction. The material is organized into sections dealing with the basic aqueous chemistry of iron and sulfur, silver, cadmium, adsorption models, experimental methodology, results and discussion.