Abstract:
Sulfur dioxide and particulate contaminants are removed from industrial waste gases by a method which provides for a highly active sulfur dioxide reactant to be utilized and regenerated. The method further includes discharging stable, insoluble sulfur containing compounds thus eliminating possible reintroduction of sulfur into the environment and regeneration of the sulfur dioxide reactant by using carbon dioxide contained in the stack gas stream.
Abstract:
The invention provides a method for testing a carbon type unit filter for leaks, wherein the material used to test the filter is reactive with the carbon filter media. This method of testing unit filters for leaks has the advantages of allowing precise location of any leakage paths, and avoiding loading of the filter during the testing operation.
Abstract:
An air filtering ceiling system having a plurality of flowthrough filtering ceiling panels, each panel being adapted for fluid tight communication with adjacent ceiling panels wherein all of the air entering a plenum enters through the panels, the individual panels being further adapted to be snapped in and out of a ceiling panel support structure.