Physical–chemical treatment of wastes: a way to close turnover of elements in LSS

Kudenko, Yu.A.; Gribovskaya, I. V.; Zolotukhin, I.G.

doi:10.1016/s0094-5765(00)00007-2

Cited by 44 publications

(9 citation statements)

References 7 publications

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“…During the vegetation period, we introduced mineralized urine (corresponding to 250 ml of natural urine) according to Kudenko's method [12] in 2 l of irrigation water. The quantity of mineralized solution introduced into the nutrient solution depended on the urine proportion in this solution; Na content did not exceed 900 mg. Nine wheat vegetations were cultivated according to the scheme described.…”

Section: Methodsmentioning

confidence: 99%

“…After wheat harvesting, straw and roots were returned to SLS as substrate. Instead of grain, 3.2 l of mineralized urine and faeces were gradually introduced into the irrigation solution, equivalent to 80% of their daily rate [12]. After 10 days and before harvesting, irrigation water was replaced by tap water to eliminate NaCl not assimilated by wheat from SLS.…”

Section: Methodsmentioning

confidence: 99%

“…The feasibility of using a single substrate for four wheat vegetations was shown in this work. After each vegetation, inedible wheat biomass (straw and roots) was returned to the soil-like substrate (SLS) as a substrate, and urine and faeces mineralized by the method of Kudenko et al [12] were introduced instead of grain. In each wheat vegetation, the mineralized nutrition solution introduced into one vessel with an area of 0.032 m 2 was equal to 17% of the human daily excretion.…”

Section: Introductionmentioning

confidence: 99%

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Some Methods for Human Liquid and Solid Waste Utilization in Bioregenerative Life-Support Systems

Ushakova

Zolotukhin

Tikhomirov

et al. 2008

Appl Biochem Biotechnol

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Bioregenerative life-support systems (BLSS) are studied for developing the technology for a future biological life-support system for long-term manned space missions. Ways to utilize human liquid and solid wastes to increase the closure degree of BLSS were investigated. First, urine and faeces underwent oxidation by Kudenko's physicochemical method. The products were then used for root nutrition of wheat grown by the soil-like substrate culture method. Two means of eliminating sodium chloride, introduced into the irrigation solution together with the products of urine oxidation, were investigated. The first was based on routine electrodialysis of irrigation water at the end of wheat vegetation. Dialysis eliminated about 50% of Na from the solution. This desalinization was performed for nine vegetations. The second method was new: after wheat cultivation, the irrigation solution and the solution obtained by washing the substrate containing mineral elements not absorbed by the plants were used to grow salt-tolerant Salicornia europaea L. plants (saltwort). The above-ground biomass of this plant can be used as a food, and roots can be added to the soil-like substrate. Four consecutive wheat and Salicornia vegetations were cultivated. As a result of this wheat and Salicornia cultivation process, the soil-like substrate salinization by NaCl were considerably decreased.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Some Methods for Human Liquid and Solid Waste Utilization in Bioregenerative Life-Support Systems

Ushakova

Zolotukhin

Tikhomirov

et al. 2008

Appl Biochem Biotechnol

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“…Error did not exceed 10% from measurable value. Treatment 2-1.2 kg/m 2 of the straw was mineralized with hydrogen peroxide at 90 • C in alternating electromagnetic field, using the technique developed by Kudenko and his colleagues [7,8]. The mineralized solution was added to the solution for irrigating radish plants at equal intervals, throughout the growth period.…”

Section: Development Of the Ways To Pretreat The Straw To Be Added Tomentioning

confidence: 99%

Estimation of the stability of the photosynthetic unit in the bioregenerative life support system with plant wastes included in mass exchange

Tikhomirov¹,

Ushakova²,

Velichko³

et al. 2008

Acta Astronautica

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“…Researchers of the Institute of Biophysics have developed a unique technique of liquid-phase oxidation of human wastes in hydrogen peroxide. The process is run in the liquid phase at a temperature of 80-95°C, with no toxic compounds emitted (Kudenko et al, 2000). Hydrogen peroxide can be derived from the system's water and oxygen.…”

Section: Introductionmentioning

confidence: 99%

Biological life support systems for a Mars mission planetary base: Problems and prospects

Tikhomirov

Ushakova

Kovaleva

et al. 2007

Advances in Space Research

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Physical–chemical treatment of wastes: a way to close turnover of elements in LSS

Cited by 44 publications

References 7 publications

Some Methods for Human Liquid and Solid Waste Utilization in Bioregenerative Life-Support Systems

Some Methods for Human Liquid and Solid Waste Utilization in Bioregenerative Life-Support Systems

Estimation of the stability of the photosynthetic unit in the bioregenerative life support system with plant wastes included in mass exchange

Biological life support systems for a Mars mission planetary base: Problems and prospects

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