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Center Innovation Fund: KSC CIF

Regenerative Ammonia Recovery from ISS Wastewater to facilitate Plant Growth

Completed Technology Project

Project Introduction

Regenerative Ammonia Recovery from ISS Wastewater to facilitate Plant Growth
Removal and recycling of nitrogen from wastewater is a critical technology for the ISS and future long-duration exploration missions. Nitrogen as ammonia is valuable for plant growth systems, but finding a way to remove it from the water stream without sodium (a toxin for plants) is difficult. KSC has developed a removal process for ammonia that precipitates struvite all chemicals beneficial to plants. This process could produce nitrogen for plants while preventing sodium accumulation. The process has the potential to become highly efficient, removing as much as 95% of the ammonia in wastewater. More »

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