Development of human exometabolite deep mineralization method for closed ecosystems

• Published in: Doklady. Biochemistry and biophysics Vol. 470; no. 1; pp. 316 - 318
• Main Authors: Tikhomirov, A. A., Trifonov, S. V., Morozov, E. A., Kudenko, Yu. A., Kalacheva, G. S., Ushakova, S. A.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.09.2016; Springer Nature B.V
• Subjects: Biochemistry; Biological and Medical Physics; Biomedical and Life Sciences; Biophysics; Ecological Systems, Closed; Electricity; Elements; Humans; Hydrogen Peroxide - chemistry; Hydrogen-Ion Concentration; Lactuca - growth & development; Life Sciences; Metabolites; Mineralization; Molecular Biology; Nitric Acid - chemistry; Oxidation-Reduction; Sanitary Engineering - methods; Sediments; Solubility; Urea - chemistry; Water - chemistry
• ISSN: 1607-6729; 1608-3091
• DOI: 10.1134/S1607672916050021

Methods of physicochemical further oxidation of hardly soluble sediment obtained from “wet combustion” of human exometabolites applied to space-purpose Bio Technological Life Support Systems (BTLLS) were studied. Most hardly dissoluble sediment containing Ca, P, Mg, and other essential plant nutrition elements were shown to dissolve in H 2 O 2 and HNO 3 aqueous media activated by alternating electric current. Dissolved additional mineral elements allowed (as demonstrated for lettuce) to increase the productivity of BTLLS phototrophic unit plants more than twice, which is comparable to their productivity on standard Knop solution with balanced chemical composition. Thus, dissolved mineral elements can be involved into BTLLS turnover process and increase its closure degree.