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New problems to be solved for establishing closed life support system.
1Institute for Environmental Sciences, Aomori, Japan. nitta@ies.or.jp
Advances in Space Research : the Official Journal of the Committee on Space Research (COSPAR)
|February 13, 2003
Summary
New test beds like Bioplex and CEEF advance bioregenerative life support by stabilizing air, balancing organism metabolic rates, and optimizing nutrient cycling for space exploration.
Area of Science:
- Environmental science
- Biotechnology
- Space exploration technologies
Background:
- Advanced life support systems are crucial for long-duration space missions.
- Bioregenerative systems offer a sustainable solution but face challenges in balancing biological processes.
- Existing technologies require significant advancements to ensure reliability and efficiency.
Purpose of the Study:
- To introduce and evaluate new test bed facilities, Bioplex and CEEF, for advanced life support technologies.
- To address key challenges in bioregenerative life support, including gas stabilization, metabolic rate matching, and nutrient cycling.
- To develop and test novel subsystems for precise nutrient adjustment and denitrification management.
Main Methods:
- Construction and utilization of Bioplex and CEEF as experimental platforms.
- Investigating air content stabilization through gas balance between biological generation and absorption.
- Analyzing and mitigating mismatches between autotrophic assimilation and heterotrophic respiration rates.
- Optimizing waste decomposition and nutrient absorption in sequential plant cultivation.
- Developing nutrient adjusting subsystems tailored for specific plant species.
- Compensating for denitrification and managing anaerobic microbes in nutrient solutions.
Main Results:
- Establishment of dedicated facilities for testing advanced life support technologies.
- Identification of critical parameters for achieving stable atmospheric composition.
- Demonstration of strategies to harmonize metabolic rates of different organisms.
- Development of methods for efficient nutrient recovery and utilization in plant cultivation.
- Progress in creating adaptable nutrient delivery systems for diverse plant needs.
- Insights into managing microbial processes for enhanced system performance.
Conclusions:
- The Bioplex and CEEF facilities provide essential infrastructure for advancing bioregenerative life support systems.
- Addressing the identified challenges is key to developing robust and sustainable life support for future space missions.
- Further research and technological development in these areas will enhance the feasibility of long-term human presence in space.