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The goal of the Advanced Life Support (ALS) Program’ss effort at Kennedy Space Center (KSC) is to conduct research and technology development leading to biore-generative approaches suitable for integrated human testing in the Bioregenerative Planetary Life Support Systems Test Complex (BIO-Plex) at the Johnson Space Center (JSC). One of the major elements of the KSC effort has been testing the feasibility of linking waste processing and biomass production. Research to date indicates that two approaches are viable candidates for further integrated testing. The first, direct recycling of graywater (i.e, shower and wash water) into hydroponic plant production systems, requires minimal additional costs since it utilizes processes within the plant production system (i.e., high microbial activity associated with the plant roots and plant evapotranspiration) to process and purify the hygiene water.