Company Filing History:
Years Active: 2000-2004
Title: Innovations of James C. Marra in Waste Management
Introduction
James C. Marra is a notable inventor based in Aiken, South Carolina, with a focus on innovative solutions for waste management. He holds five patents, showcasing his commitment to advancing technology in this critical field. His work primarily revolves around the development of glass compositions that facilitate the stabilization of various waste materials.
Latest Patents
One of Marra's latest patents is titled "Low Melting High Lithia Glass Compositions and Methods." This invention relates to methods of vitrifying waste and lowering the melting point of glass-forming systems by incorporating lithia formers in significant amounts. Typically, these amounts range from about 0.16 wt % to about 11 wt %, based on the total glass-forming oxides. The lithia is included as a replacement for alkali oxide glass formers that are usually present in a specific glass-forming system. This replacement can occur on a mole percent or weight percent basis, resulting in a composition where lithia constitutes about 10 wt % to about 100 wt % of the alkali oxide glass formers. The invention is particularly useful for stabilizing various types of waste materials, including aqueous waste streams, sludge solids, and incinerator ash. The decrease in melting point achieved by this invention helps prevent the volatilization of hazardous or radioactive species during vitrification.
Career Highlights
James C. Marra is associated with the Westinghouse Savannah River Company, where he applies his expertise in waste management technologies. His contributions have significantly impacted the field, particularly in developing methods that enhance the safety and efficiency of waste disposal processes.
Collaborations
Throughout his career, Marra has collaborated with esteemed colleagues, including Carol M. Jantzen and John B. Pickett. These partnerships have fostered innovation and have been instrumental in advancing their shared goals in waste management.
Conclusion
James C. Marra's innovative work in developing low melting high lithia glass compositions exemplifies his dedication to improving waste management technologies. His contributions continue to play a vital role in addressing environmental challenges associated with waste disposal.