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| Number | Title | Issue Date |
| 6743963 | Methods for the prevention of radon emissions This invention is directed to methods for treating radioactive-containing waste materials. Even more specifically, this invention relates to the prevention of radon emissions by encapsulating the radon in radon-generating waste matter using a chemical additive. Alte... | 06/01/2004 |
| 6251283 | Methods for removing selenium from a waste stream The present invention is directed to a method for removing selenium from a waste stream. The process is a multi-step process that removes selenium from a waste stream in the form of barium selenate and/or barium selenite. In a further step, the barium sel... | 06/26/2001 |
