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

Zhang, Dongdong; Clauwaert, Peter; Luther, Amanda; Barreiro, Diego López; Prins, Wolter; Brilman, Derk Willem Frederik; Ronsse, Frederik

doi:10.1016/j.wasman.2018.04.008

Cited by 17 publications

(8 citation statements)

References 43 publications

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“…However, in practice, no system can be 100% closed. There are always potential outfluxes from the system, for example, through a buildup of recalcitrant organic matter (Hendrickx and Mergeay, 2007;Zhang et al, 2018) or the accumulation of different precipitates such as carbonates and phosphates (De Paepe et al, 2018;Christiaens et al, 2019). Recalcitrant organic matter consists mainly of plant fibers that do not rapidly biodegrade.…”

Section: Discussionmentioning

confidence: 99%

“…Recalcitrant organic matter consists mainly of plant fibers that do not rapidly biodegrade. Plant cell walls are composed of cellulose, hemicellulose, pectin, and lignin and are among the least degradable polymers in a BLSS (Hendrickx and Mergeay, 2007;Zhang et al, 2018). As a result, up to about 70% of the organic waste could be digested in MELiSSA lab experiments (Farges et al, 2008;.…”

Section: Discussionmentioning

confidence: 99%

“…The MELiSSA community has investigated additional methods to break down the remaining recalcitrant matter using hydrothermal and chemical oxidation, and anaerobic and hyperthermophilic cellulose-degrading bacteria (Hendrickx & Mergeay, 2007;. The most efficient results were obtained by using supercritical water oxidation (SCWO) in which up to 98% of all organic matter could be broken down (Hendrickx and Mergeay, 2007;Zhang et al, 2018). Hydrogen peroxide was used as an oxidizer in these tests, which is a compound that can be generated within a BLSS loop (Tikhomirov et al, 2011;Vijapur et al, 2017;Nelson et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

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Presentations at the 2022 MELiSSA Conference – Current and Future Ways to Closed Life Support Systems

Verseux,

Paul de Vera,

Gennaro Izzo

2024

Frontiers Research Topics

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Presentations at the 2022 MELiSSA Conference – Current and Future Ways to Closed Life Support Systems

Verseux,

Paul de Vera,

Gennaro Izzo

2024

Frontiers Research Topics

View full text Add to dashboard Cite

show abstract

“…An OER between 0.5 and 1.0 does not reach high oxidation efficiencies due to the formation of solid products, probably caused by repolymerization reactions at low OER regimes. The formation of solids could inhibit organics from subsequent oxidation (Zhang et al, 2018). At OERs between 1.5 and 10.0, efficiencies close to 100% can be reached depending on other parameters, like the residence time (Pisharody et al, 1996;Zhang et al, 2013;Gong et al, 2016).…”

Section: Challenges and Needs For Scwo Operationmentioning

confidence: 99%

“…Within the environment of supercritical water, reactants (being both the organics as well as the oxidizer) appear in a homogeneous single phase, boosting oxidation reaction rates dramatically. SCWO can fit within a waste management strategy to decompose harmful and/or high-risk substances (e.g., medical wastes), or high-moisture waste streams (e.g., sewage sludge) (Marrone, 2013;Brunner, 2014;Zhang et al, 2018Zhang et al, , 2020.…”

Section: Introductionmentioning

confidence: 99%