航天微生态物质转化再生系统试验装置研制
Development of experimental equipment for transformation and regeneration system of aerospace micro-ecological substances
杜罗乐 1周广武 1何敏 2徐绯3
作者信息
- 1. 四川大学 空天科学与工程学院,四川 成都 610065
- 2. 中国测试技术研究院,四川成都 610021
- 3. 四川大学生命科学学院,四川成都 610065
- 折叠
摘要
构建生物再生式生命保障系统,实现污水处理和废物利用,是未来在太空长期探测作业必须解决的关键技术.为了探究生保环控系统中微生物和植物的相互耦合作用,研制了以微生物-微藻耦合装置为核心反应器的航天微生态物质转化再生地面试验装置.该装置依托微生物燃料电池阳极电化学活性微生物厌氧代谢过程,提取废水中有机污染物中的电子,经胞外电子转移途径传递至电池阳极,直接将有机物转化为电能,微藻置于微生物燃料电池的阴极,产生的氧为微生物燃料电池阴极提供电子受体.试验结果表明:该装置运行良好,满足设计要求,产电和污水处理能力均较稳定,可以为后续航天微生态物质转化再生系统的研究提供理论与技术支撑.
Abstract
The bio-regenerative life support system as well as sewage treatment and waste utilization are the key technologies that must be applied in long-term space exploration in the future.In this article,in order to explore the coupling of microorgan-isms and plants in the bio-preserving environmental control system,a ground test device for transformation and regeneration of aer-ospace micro-ecological substances is developed,with the microorganisms-microalgae coupling device as the core reactor.Rel-ying on the electrochemical activity of the microbial fuel cell's anode and the anaerobic metabolism process of microorganisms,this device extracts the electrons in the organic pollutants in the waste water,and then transmits them to the cell's anode through the extracellular electron transfer pathway;as a result,the organic materials are directly converted into electrical energy.The mi-croalgae are placed at the microbial fuel cell's cathode;oxygen produced by the microalgae is used to provide electron receptors for the microbial fuel cell's cathode.The results show that this device runs well,thus meeting the design requirements;the ca-pacities of sewage treatment and power production are stable.This study provides theoretical and technical support for subsequent research on transformation and regeneration of aerospace micro-ecological substances.
关键词
环控生保系统/微生物燃料电池/微藻/太空污水处理Key words
bio-preserving environmental control system/microbial fuel cell/microalgae/space sewage treatment引用本文复制引用
出版年
2024
NETL
NSTL
万方数据