Specific water soluble-chelators are being developed for recovery of arsenic and proteins. Kinetic binding rates and transport of these chelators in porous media is under investigation. In the combustion of fossil fuels, a large fraction of the NOx originates from fuel-nitrogen, and the fuel stoichiometric ratio plays a major role in determining NOx levels. Research on the fundamental mechanisms of NOx formation has helped elucidate the role stoichiometric ratio plays. Thermal Treatment of Hazardous Wastes Incineration has received substantial negative publicity as a pollution control methodology, in spite of its proven success in treating a large class of hazardous wastes.
Research focuses on methods for scaling up models describing gas phase transient mixing.
As with incineration of municipal and hazardous wastes, the combustion of pulverized coal potentially generates airborne toxic metals, particularly from more volatile species such as alkalis, Pb and Hg. Emissions potential is influenced in part by interactions between the various inorganic constituents in the coal. Additionally, inorganic sorbents can be added at various stages in the combustion process which interact with more volatile species rendering those species more easily collectable by conventional pollution control devices. Pollution Prevention by Industrial Process Modifications Traditionally, semiconductor manufacturing has been considered a light, modern and clean industry with little environmental impact. This has led to a high density of this industry in the west and the southwest areas of the US where water is scarce.