| http://www.w3.org/ns/prov#value | - Still another aspect of the present invention is to provide a method of removing contaminants from a gas stream using a quantity of granular media within a moving granular bed filter, the general nature of which can be stated as including the steps of maintaining a freely-formed filtration pile of the granular media within the interior of a vessel of the moving granular bed filter, flowing the gas
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