Valdis Krumins, Lawrence Koss
A continuous leaching device was designed to extract inorganic nutrients from ALS solid wastes for recycling back to hydroponic plant growth systems. The system consists of a conveyor that carries the waste under a water spray, effectively extracting nutrients from hydroponic rice crop residues. This approach, which leads to microbial growth and potential biofouling, is advantageous as it yields leachate with significantly reduced biochemical oxygen demand (BOD), making it suitable for direct use in hydroponic systems without further processing. The research aims to evaluate bioreactor systems for recycling nutrients with minimal carbon recovery, which is essential for advanced life support applications. Various bioreactor types including continuous stirred tank reactors and fixed-film bioreactors have been assessed for their operational costs and efficiencies in nutrient regeneration, focusing on stripping organic compounds from ALS solid wastes. The results highlight the importance of developing efficient bioprocessing systems for sustainable nutrient recovery in hydroponic cultivation, enabling effective resource utilization in space-based environments.
@article{a2982c6d-e000-4193-a5be-c4aa4b72468f,
title={Continuous Leaching Bio reactor},
author={Valdis Krumins and Lawrence Koss},
year={2026},
language={en}
}TY - JOUR TI - Continuous Leaching Bio reactor AU - Valdis Krumins AU - Lawrence Koss PY - 2026 LA - en ER -
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