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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Tikhomirov, Alexander, Ushakova, Sofya, Tikhomirova, Natalia, Velichko, Vladimir, Trifonov, Sergey, Anishchenko, Olesya
Заглавие : Establishing cycling processes in an experimental model of a closed ecosystem
Колич.характеристики :8 с
Коллективы : Russian Science Foundation, RussiaRussian Science Foundation (RSF) [14-14-00599Pi]
Место публикации : Acta Astronaut.: PERGAMON-ELSEVIER SCIENCE LTD, 2020. - Vol. 166: 21st International-Academy-of-Astronautics (IAA) Humans in Space (NOV 27-30, 2017, Shenzhen, PEOPLES R CHINA). - С. 537-544. - ISSN 0094-5765, DOI 10.1016/j.actaastro.2018.08.023. - ISSN 1879-2030(eISSN)
Примечания : Cited References:18. - The study was supported by the Russian Science Foundation, Russia (Project No. 14-14-00599 Pi) and carried out in the IBP SB RAS at FRCKRC SB RAS. No competing financial interests exist.
Предметные рубрики: BIOREGENERATIVE LIFE-SUPPORT
EXCHANGE
WASTES
MASS
Аннотация: The purpose of this study was to investigate mass exchange processes in the experimental model of a closed ecological system intended for an estimated portion of a human in the long-duration (several-month) experiment. The diversity of the vegetable crop community in the system was increased, human wastes were involved in mass exchange processes, and human respiration was periodically connected to the system. The system has been designed to test different prospective technologies for future closed life support systems intended for prolonged autonomous operation in space and terrestrial applications. Three methods of plant cultivation in the conveyer mode have been used: hydroponics on expanded clay aggregate, growing plants on the soil-like substrate, and plant cultivation in aquaculture. The technology of more effective oxidation of organic wastes in a physicochemical processing reactor has been developed. A human exhaled the air into the system and consumed the air from the system. O-2 concentration did not drop below 20.8% and did not rise above 22.6%. CO2 concentration varied between 800 ppm and 2500 ppm. Plants growing under this CO2 range at a preset light irradiance showed optimal photosynthetic activity. The closure coefficients for Ca, Mg, S, N, K and P were above 90%. However, compared with the inflow, only 55% Ca, about 80% Mg, and 75% Na and P were removed from the system. The technological processes developed in this study will need to be modified and improved before they can be used in a full-scale closed biotechnical life support system intended for prolonged operation.
WOS
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Tikhomirov A. A., Kudenko, Yu. A., Trifonov S. V.
Заглавие : Physicochemical conversion of human exometabolites for the NaCl involvement into the mass exchange in closed life support systems
Колич.характеристики :3 с
Коллективы : Russian Science Foundation at the Institute of Biophysics, Siberian Branch, Russian Academy of Sciences [14-14-00599]
Место публикации : Dokl. Biochem. Biophys.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2016. - Vol. 466, Is. 1. - С. 17-19. - ISSN 1607-6729, DOI 10.1134/S1607672916010051. - ISSN 1608-3091(eISSN)
Примечания : Cited References:6. - The study was supported by the Russian Science Foundation (project no. 14-14-00599) at the Institute of Biophysics, Siberian Branch, Russian Academy of Sciences.
Предметные рубрики: WASTES
Аннотация: The results of the original physicochemical method of NaCl recovery out of the mineralized human metabolites' solution obtained after their oxidation in H2O2 aqueous solution under the influence of alternating electric current are presented. The technological stages of the newly developed method are described, and its efficiency at each stage is demonstrated. The possibility to efficiency isolate Na from the NaHCO3 solution by applying electrodialysis technology and temperature separation is demonstrated. The HCl synthesis from Cl-2 and H-2 released during electrolysis is stable, allowing its combining with electrodialysis aimed at NaCl production under the conditions of a closed life support system.
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