New Patents Furthermore, it is confirmed that CO2 formation rate has a good correlation with COD or BOD in the upstream half section of the aeration tank, whereas N 2 0 formation rate has a good correlation with C O D or BOD in the latter half section thereof along sewage flow direction, and more improved control can be attained by a combination of both CO2 and N 2 0 indices.
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amount of oxygen needed to oxidize all components of the waste. An ignition source is provided. During incineration, the organic components are completely destroyed, water and carbon dioxide being the major combustion products. At the temperatures that develop, substantially all of the metal is converted to metallic oxides, which either remain in an underground cavity or sink harmlessly to the bottom of a body of water.
4437999 METHOD OF TREATING CONTAMINATED INSOLUBLE ORGANIC SOLID MATERIAL Sherman T Mayne assigned to Gram Research & Development Co The method of feeding an insoluble organic solid material in the form of an organic resin or biological matter containing contaminating material such as radioactive waste from a nuclear facility or from treatment of animal or plant tissue in a laboratory or medical facility into a vessel containing water and to which ultraviolet light and ozone, preferably by sparging, are applied while the water is being agitated to distribute the ozone. The ozone oxidizes the organic resin or biological material, which disintegrates on oxidation substantially into water and carbon dioxide, leaving substantially no resin or biological material after treatment by the ultraviolet light and ozone for a prescribed period of time, and leaving the contaminant material as a precipitate or in solution in the remaining water or as an escaping gas, in any of which forms it can be readily separated from the water for disposal or further treatment.
4438708 COMPLETE INCINERATION OF WASTE MATERIAL
4439318 SYSTEM FOR TREATING RADIOACTIVE WASTE Masaru Hayashi, Atsushi Tagusagawa, Fumiaki Komatsu, Yoshihisa Sawada, Yorihisa Sakaki, Tokyo, Japan assigned to Kobe Steel Ltd
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A system for treating radioactive waste employing a rotary mechanism which contains in its rotational path of travel a number of stages for the treatment, i.e., a stage of condensing a slurry of radioactive waste, a stage for drying the condensed waste and a stage for storing dried waste temporarily for feeding to a melting furnace. The rotary mechanism employs a number of containers for transferring the radioactive waste to and from the respective stages along the rotational path o f travel.
Russell E Duff assigned to S-Cubed
4439~3 APPARATUS FOR CONDITIONING BIOINJURIOUS WASTE Waste materials are deposited in a subsurface cavity, either underground or underwater. The wastes are supplied with liquid oxygen in an amount in excess of the estimated theoretical
Herbert Brunner, Bernhard Christ, Wilhelm Henss, Werner Pfeifer, Klaus Scheuermann, 6450 Hanau 9, Federal Republic O f Germany