2019-06-202019-06-202019-07-07ICES_2019_196https://hdl.handle.net/2346/84427Badawi Dweik, Giner, Inc., USAKatherine Harrison, Giner, Inc., USAAvni Argun, Giner, Inc., USAICES301: Advanced Life Support Systems ControlThe 49th International Conference on Environmental Systems was held in Boston, Massachusetts, USA on 07 July 2019 through 11 July 2019.For long-duration human missions, potable water can come from a variety of sources including treated humidity condensate, urine, hygiene water or makeup sources. Monitoring of Total Organic Carbon (TOC) in treated water can predict the overall water quality by indicating the presence of hazardous levels of organics load, and can be used to indicate when multi-filtration beds require replacement. This data would allow controllers and engineers to monitor both impending breakthroughs and recovery from upsets in water quality in the event of a failure of the water recovery system. It would also confirm that the water processor is functioning properly and the TOC is reduced down to safe values once appropriate remedial action is taken. Currently, NASA utilizes a TOC analyzer,TOCA, to monitor and quantify the organic compounds in water. TOCA is a lengthy measurement that relies on the complete oxidation of organic carbon in the water through combustion via oxidizing gas, heat or catalyzed chemical oxidation followed by measurement of CO2 as product using a separate detection system. Giner’s water quality research is focused on developing the first “reagentless”, in-line, small-footprint TOC Modular Analyzer to provide accurate, reliable and simultaneous real-time monitoring of TOC in water. The Giner TOC Modular Analyzer (GITOC™) employs controlled electrochemical oxidation techniques, high performance electrodes, and optimized data analysis to continuously monitor and quantify TOC levels in the process water streams. GITOC™ eliminates the need for toxic and consumable chemicals and performs the TOC measurement directly in reclaimed water to reduce cost and footprint by as much as 90% as compared to the current TOCA systems. GITOC™ has also the ability to speciate key organic compounds of interest to NASA such as methanol (CH3OH), acetone ((CH3)2CO), and formaldehyde (CH2O) that originate from humans, materials of construction and partial breakdown of other organics.application/pdfengWater qualityTotal Organic CarbonReclaimed WaterSensorOrganic Compounds in WaterPresentations