Material recycling in a regenerative life support system for space use: Its issues and waste processing

Sub- and supercritical water oxidation of anaerobic fermentation sludge for carbon and nitrogen recovery in a regenerative life support system

“…In our study, the organic waste was not directly introduced into SCWO system which was different from many literature reported studies (Bubenheim and Wydeven, 1994;Czupalla et al, 2004;Drysdale et al, 2003;Kudenko et al, 2000;Takahashi and Tanaka, 1992;Takahashi et al, 1989). Organic wastes were first in anaerobic fermentation during which a large fraction of the waste-TOC was converted to CO 2 .…”

“…The possibility of controlled and complete destruction of organic (solid and liquid) wastes, with the ability to reclaim water, nutrients and CO 2 and without the drawbacks associated to incineration, has led to the evaluation of SCWO technology as a suitable candidate in regenerative life support systems for long-term space missions (Bubenheim and Wydeven, 1994;Drysdale et al, 2003;Kudenko et al, 2000;Takahashi and Tanaka, 1992). Most researchers applied model mixtures of wastes mimicking waste that is produced during crew-operated space missions.…”