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Effect of digestate disintegration on anaerobic digestion of organic waste

(2018) BIORESOURCE TECHNOLOGY. 268. p.568-576
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Abstract
Recently, digestate disintegration gained interest as an alternative strategy to feedstock pretreatment for anaerobic digestion. This study evaluated the effect of three different digestate disintegration methods (hydrogen peroxidation, ozone treatment and ultrasound) on manure digestate, potato waste digestate and mixed organic waste digestate. Lab-scale anaerobic digestion experiments were carried out by adding disintegrated digestate to the related substrate and inoculum with simulated recycle ratios of 0.2 and 0.5. Ultrasound disintegration of potato waste digestate yields 22.5% increase in biogas production. An increase in biogas production was linked to the treated digestate amount and the treatment dosage. First order model was used to investigate the effect of digestate disintegration on the first order reaction rate constant (k). The decrease in k and increase in biogas production were linearly correlated. This correlation was explained by the increased bioavailability of the organic matter and possible negative effects of digestate disintegration on the microorganisms.
Keywords
Ultrasound, Ozonation, Peroxidation, First-order kinetics, Biogas, BIOGAS PRODUCTION, METHANE YIELD, PRETREATMENT STRATEGIES, OXIDATION PROCESSES, INDUSTRIAL-WASTE, CO-DIGESTION, FULL-SCALE, SLUDGE, ULTRASONICATION, MANURE

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Citation

Please use this url to cite or link to this publication:

MLA
Somers, Matthijs H et al. “Effect of Digestate Disintegration on Anaerobic Digestion of Organic Waste.” BIORESOURCE TECHNOLOGY 268 (2018): 568–576. Print.
APA
Somers, M. H., Azman, S., Sigurnjak, I., Ghyselbrecht, K., Meers, E., Meesschaert, B., & Appels, L. (2018). Effect of digestate disintegration on anaerobic digestion of organic waste. BIORESOURCE TECHNOLOGY, 268, 568–576.
Chicago author-date
Somers, Matthijs H, Samet Azman, Ivona Sigurnjak, Karel Ghyselbrecht, Erik Meers, Boudewijn Meesschaert, and Lise Appels. 2018. “Effect of Digestate Disintegration on Anaerobic Digestion of Organic Waste.” Bioresource Technology 268: 568–576.
Chicago author-date (all authors)
Somers, Matthijs H, Samet Azman, Ivona Sigurnjak, Karel Ghyselbrecht, Erik Meers, Boudewijn Meesschaert, and Lise Appels. 2018. “Effect of Digestate Disintegration on Anaerobic Digestion of Organic Waste.” Bioresource Technology 268: 568–576.
Vancouver
1.
Somers MH, Azman S, Sigurnjak I, Ghyselbrecht K, Meers E, Meesschaert B, et al. Effect of digestate disintegration on anaerobic digestion of organic waste. BIORESOURCE TECHNOLOGY. 2018;268:568–76.
IEEE
[1]
M. H. Somers et al., “Effect of digestate disintegration on anaerobic digestion of organic waste,” BIORESOURCE TECHNOLOGY, vol. 268, pp. 568–576, 2018.
@article{8570921,
  abstract     = {Recently, digestate disintegration gained interest as an alternative strategy to feedstock pretreatment for anaerobic digestion. This study evaluated the effect of three different digestate disintegration methods (hydrogen peroxidation, ozone treatment and ultrasound) on manure digestate, potato waste digestate and mixed organic waste digestate. Lab-scale anaerobic digestion experiments were carried out by adding disintegrated digestate to the related substrate and inoculum with simulated recycle ratios of 0.2 and 0.5. Ultrasound disintegration of potato waste digestate yields 22.5% increase in biogas production. An increase in biogas production was linked to the treated digestate amount and the treatment dosage. First order model was used to investigate the effect of digestate disintegration on the first order reaction rate constant (k). The decrease in k and increase in biogas production were linearly correlated. This correlation was explained by the increased bioavailability of the organic matter and possible negative effects of digestate disintegration on the microorganisms.},
  author       = {Somers, Matthijs H and Azman, Samet and Sigurnjak, Ivona and Ghyselbrecht, Karel and Meers, Erik and Meesschaert, Boudewijn and Appels, Lise},
  issn         = {0960-8524},
  journal      = {BIORESOURCE TECHNOLOGY},
  keywords     = {Ultrasound,Ozonation,Peroxidation,First-order kinetics,Biogas,BIOGAS PRODUCTION,METHANE YIELD,PRETREATMENT STRATEGIES,OXIDATION PROCESSES,INDUSTRIAL-WASTE,CO-DIGESTION,FULL-SCALE,SLUDGE,ULTRASONICATION,MANURE},
  language     = {eng},
  pages        = {568--576},
  title        = {Effect of digestate disintegration on anaerobic digestion of organic waste},
  url          = {http://dx.doi.org/10.1016/j.biortech.2018.08.036},
  volume       = {268},
  year         = {2018},
}

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