Fiber-Based Adsorbents Tailored for PLSS Ammonia and Formaldehyde Removal

Development of advanced lightweight Trace Contaminant Control (TCC) filters plays an important role in removing ammonia and formaldehyde contaminants?both those produced by crew metabolism and material/equipment off-gassing into the space suit system for future space and planetary systems. Serionix Inc. has developed proprietary adsorptive coatings which can be applied on porous and nonporous substrates to yield functional composite media capable of rapid, efficient?adsorption of trace ammonia and formaldehyde. In Phase I, research was conducted which demonstrated technical feasibility and excellent performance capacity of Serionix single-pass and regenerable adsorbents for targeted components under simulated PLSS operating environment. During phase II, we will tailor our sorbents and design a prototype directly compatible with PLSS requirements, for filter assembly which can be incorporated into a TCC system or synergistically integrated with the existing RCA unit. In addition, we will perform extensive robustness testing to evaluate media under operational and hazard scenario conditions. Successful implementation of our technology will increase efficiency while reducing mass, volume, and pressure drop of the?TCC system to protect the crew in all mission environments and address a wide range of current and future NASA requirements.