{"project":{"acronym":"","projectId":94186,"title":"FY17 GRC: Supercritical Water Plasma-Assisted Oxidation","primaryTaxonomyNodes":[{"taxonomyNodeId":10687,"taxonomyRootId":8816,"parentNodeId":10682,"level":3,"code":"TX06.1.5","title":"ECLSS Modeling and Simulation Tools","definition":"ECLSS modeling and simulation tools help develop and understand next generation life support systems that often present special cases not available in industry tools.","exampleTechnologies":"Chemical process modeling (e.g. complex fluid precipitation thresholds) and biological system modeling (higher plant metabolisms, microbial behavior in bioprocessors or undesired biofilm contamination)","hasChildren":false,"hasInteriorContent":true}],"startTrl":3,"currentTrl":3,"endTrl":3,"benefits":"
The benefits derived by this technology could be considerable and highly relevant to NASA's needs, particularly in the areas of Environmental Control and Life Support (i.e., waste management and water reclamation) and Space Life and Physical Sciences (i.e., gain of fundamental knowledge in plasma physics). There are many terrestrial applications that would potentially benefit, should the proposed technology be successful. In a horizon of 5 to 10 years, plasma-assisted SCWO would be patented and conceivably become the seed technology for a commercial start-up. Considering a longer time horizon, because of the dire needs on a wide front of environmental and resource issues, it is not inconceivable that this technology becomes ubiquitous. Timely examples include applications in the reclamation of contaminated water resources; e.g., algae blooms in Lake Erie, handling ballast-water from shipping, salt-laden aquifers in the Southwest. More traditional examples include the handling of “wet” solid-waste streams; ranging from the typical (e.g., city sludge, commercial farm wastes, etc.) to the more problematic (e.g., pharmaceutical, cooling wastes from nuclear power plants, paper mills, demilitarization of chemical weapon stockpiles, etc.). A number of new applications are also emerging; e.g., hydrothermal flame spallation for drilling, or partial oxidation of shale oil in supercritical water to reduce coking during reforming.
","description":"Closed-loop systems for waste stream processing and resource reclamation (e.g., solid waste management and water reclamation) remain a limiting factor for extended duration space missions contemplated under NASA's exploration initiative. Current systems are constrained by their recovery efficiencies, total system masses, operational and maintenance costs, waste stream preconditions, and the inability to address the full spectrum of microbial and organic contaminants. Supercritical Water Oxidation (SCWO) provides an established technology base that has the potential to successfully address many, if not all, of these issues through the application of a number of recent advances. The overarching goal of the proposed work was to demonstrate the efficacy of partially converting one of the reactant streams from a co-flow SCWO injector into plasma in order to initiate and/or accelerate the oxidation reactions.
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