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Mild temperature hydrothermal oxidation of anaerobic fermentation filtrate for carbon and nitrogen recovery in a regenerative life support system

Dongdong Zhang (UGent) , Amanda Luther (UGent) , Peter Clauwaert (UGent) and Frederik Ronsse (UGent)
(2019) JOURNAL OF SUPERCRITICAL FLUIDS. 145. p.39-47
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Abstract
Hydrothermal oxidation of fermentation filtrate was conducted in a tubular reactor to recover carbon (as CO2) and nitrogen (as NH4+ or NO3-) at mild temperature destined for use in a regenerative life support system. Temperature, residence time (tR), and the oxidizer equivalence ratio (OER) were the experimental variables in the oxidation tests. The highest carbon recovery achieved was 68.2%, with 80.1% of the total nitrogen being retained in the form of NH4+ or NO3- at 380 ℃, tR = 48 s and OER = 4.0. The effect of temperature, residence time and OER on carbon and nitrogen distribution were discussed. Moreover, a first-order reaction rate was applied by means of regression analysis to estimate the carbon conversion rates. Prolonging the residence time at 380 ℃ with OER = 3.0 is proposed to be a promising modification to increase both carbon and nitrogen recovery from the filtrate.
Keywords
mild temperature hydrothermal oxidation, fermentation filtrate, carbon recovery, nitrogen recovery, regenerative life support system, kinetics, SUPERCRITICAL WATER OXIDATION, KINETIC-MODEL, SEWAGE-SLUDGE, WASTE-WATER, ORGANIC-COMPOUNDS, WET OXIDATION, DECOMPOSITION, REMOVAL, GASIFICATION, DESTRUCTION

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Chicago
Zhang, Dongdong, Amanda Luther, Peter Clauwaert, and Frederik Ronsse. 2019. “Mild Temperature Hydrothermal Oxidation of Anaerobic Fermentation Filtrate for Carbon and Nitrogen Recovery in a Regenerative Life Support System.” Journal of Supercritical Fluids 145: 39–47.
APA
Zhang, D., Luther, A., Clauwaert, P., & Ronsse, F. (2019). Mild temperature hydrothermal oxidation of anaerobic fermentation filtrate for carbon and nitrogen recovery in a regenerative life support system. JOURNAL OF SUPERCRITICAL FLUIDS, 145, 39–47.
Vancouver
1.
Zhang D, Luther A, Clauwaert P, Ronsse F. Mild temperature hydrothermal oxidation of anaerobic fermentation filtrate for carbon and nitrogen recovery in a regenerative life support system. JOURNAL OF SUPERCRITICAL FLUIDS. 2019;145:39–47.
MLA
Zhang, Dongdong et al. “Mild Temperature Hydrothermal Oxidation of Anaerobic Fermentation Filtrate for Carbon and Nitrogen Recovery in a Regenerative Life Support System.” JOURNAL OF SUPERCRITICAL FLUIDS 145 (2019): 39–47. Print.
@article{8583302,
  abstract     = {Hydrothermal oxidation of fermentation filtrate was conducted in a tubular reactor to recover carbon (as CO2) and nitrogen (as NH4+ or NO3-) at mild temperature destined for use in a regenerative life support system. Temperature, residence time (tR), and the oxidizer equivalence ratio (OER) were the experimental variables in the oxidation tests. The highest carbon recovery achieved was 68.2\%, with 80.1\% of the total nitrogen being retained in the form of NH4+ or NO3- at 380 \unmatched{2103}, tR = 48 s and OER = 4.0. The effect of temperature, residence time and OER on carbon and nitrogen distribution were discussed. Moreover, a first-order reaction rate was applied by means of regression analysis to estimate the carbon conversion rates. Prolonging the residence time at 380 \unmatched{2103} with OER = 3.0 is proposed to be a promising modification to increase both carbon and nitrogen recovery from the filtrate.},
  author       = {Zhang, Dongdong and Luther, Amanda and Clauwaert, Peter and Ronsse, Frederik},
  issn         = {0896-8446},
  journal      = {JOURNAL OF SUPERCRITICAL FLUIDS},
  language     = {eng},
  pages        = {39--47},
  title        = {Mild temperature hydrothermal oxidation of anaerobic fermentation filtrate for carbon and nitrogen recovery in a regenerative life support system},
  url          = {http://dx.doi.org/10.1016/j.supflu.2018.11.022},
  volume       = {145},
  year         = {2019},
}
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