Abstract: The present invention reduces the sulfur and odor emissions from a paper-making Kraft process by recovering the sulfur in the non-combustible gases (NGCs) emitted by the Kraft process. In a first embodiment of the invention, the NGCs are flamelessly oxidized in a flameless thermal oxidizer to form a sulfur oxide-containing, gaseous products stream. The gaseous products stream is scrubbed with a scrubber solution stream to remove the sulfur components resulting in a scrubbed gas stream and spent scrubber solution stream having S.sub.2 O.sub.3 and SO.sub.4, and SO.sub.3 soluble salts. At least a portion of the spent scrubber solution from the scrubber is directed back into the Kraft process, thus recovering the sulfur. In a second general embodiment of the invention, the NGCs are flamelessly oxidized in a moving, packed bed calcinator. The calcinator receives a lime mud stream from the Kraft process, forms a packed bed therefrom, calcines the packed bed, and releases it as a quick lime stream.

Abstract: Improved methods for the treatment of commingled wastes and process systems for practicing those methods are provided. The methods are practiced by first treating the commingled waste material in a primary treatment unit in the presence of a carrier fluid to separate the organic waste from the inorganic waste. The carrier fluid and the gaseous products from the primary unit are then treated in a flameless oxidizer, which efficiently destroys any remaining organic compounds. In one embodiment, the process gases exiting the flameless oxidizer are recycled to the primary treatment unit.