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Publikationstyp: Beitrag in wissenschaftlicher Zeitschrift
Art der Begutachtung: Peer review (Publikation)
Titel: Sewage sludge treatment by hydrothermal carbonization : feasibility study for sustainable nutrient recovery and fuel production
Autor/-in: Gerner, Gabriel
Meyer, Luca
Wanner, Rahel
Keller, Thomas
Krebs, Rolf
et. al: No
DOI: 10.3390/en14092697
10.21256/zhaw-22467
Erschienen in: Energies
Band(Heft): 14
Heft: 9
Seite(n): 2697
Erscheinungsdatum: 2021
Verlag / Hrsg. Institution: MDPI
ISSN: 1996-1073
Sprache: Englisch
Schlagwörter: Hydrothermale Karbonisierung; Phosphorrückgewinnung; Faulschlamm; HTC-Kohle; Nährstoffrückgewinnung; Wirtschaftlichkeit
Fachgebiet (DDC): 660: Technische Chemie
Zusammenfassung: Phosphorus recovery from waste biomass is becoming increasingly important, given that phosphorus is an exhaustible non-renewable resource. For the recovery of plant nutrients and production of climate-neutral fuel from wet waste streams, hydrothermal carbonization (HTC) has been suggested as a promising technology. In this study, digested sewage sludge (DSS) was used as waste material for phosphorus and nitrogen recovery. HTC was conducted at 200 °C for 4 h, followed by phosphorus stripping (PS) or leaching (PL) at room temperature. The results showed that for PS and PL around 84% and 71% of phosphorus, as well as 53% and 54% of nitrogen, respectively, could be recovered in the liquid phase (process water and/or extract). Heavy metals were mainly transferred to the hydrochar and only <1 ppm of Cd and 21–43 ppm of Zn were found to be in the liquid phase of the acid treatments. According to the economic feasibility calculation, the HTC-treatment per dry ton DSS with an industrial-scale plant would cost around 608 USD. Between 349–406 kg of sulfuric acid are required per dry ton DSS to achieve a high yield in phosphorus recovery, which causes additional costs of 96–118 USD. Compared to current sewage sludge treatment costs in Switzerland, which range between 669 USD and 1173 USD, HTC can be an economically feasible process for DSS treatment and nutrient recovery.
URI: https://digitalcollection.zhaw.ch/handle/11475/22467
Volltext Version: Publizierte Version
Lizenz (gemäss Verlagsvertrag): CC BY 4.0: Namensnennung 4.0 International
Departement: Life Sciences und Facility Management
Organisationseinheit: Institut für Umwelt und Natürliche Ressourcen (IUNR)
Publiziert im Rahmen des ZHAW-Projekts: HTC-Verfahren zur Rückgewinnung von Phosphor aus Klärschlamm
Enthalten in den Sammlungen:Publikationen Life Sciences und Facility Management

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Gerner, G., Meyer, L., Wanner, R., Keller, T., & Krebs, R. (2021). Sewage sludge treatment by hydrothermal carbonization : feasibility study for sustainable nutrient recovery and fuel production. Energies, 14(9), 2697. https://doi.org/10.3390/en14092697
Gerner, G. et al. (2021) ‘Sewage sludge treatment by hydrothermal carbonization : feasibility study for sustainable nutrient recovery and fuel production’, Energies, 14(9), p. 2697. Available at: https://doi.org/10.3390/en14092697.
G. Gerner, L. Meyer, R. Wanner, T. Keller, and R. Krebs, “Sewage sludge treatment by hydrothermal carbonization : feasibility study for sustainable nutrient recovery and fuel production,” Energies, vol. 14, no. 9, p. 2697, 2021, doi: 10.3390/en14092697.
GERNER, Gabriel, Luca MEYER, Rahel WANNER, Thomas KELLER und Rolf KREBS, 2021. Sewage sludge treatment by hydrothermal carbonization : feasibility study for sustainable nutrient recovery and fuel production. Energies. 2021. Bd. 14, Nr. 9, S. 2697. DOI 10.3390/en14092697
Gerner, Gabriel, Luca Meyer, Rahel Wanner, Thomas Keller, and Rolf Krebs. 2021. “Sewage Sludge Treatment by Hydrothermal Carbonization : Feasibility Study for Sustainable Nutrient Recovery and Fuel Production.” Energies 14 (9): 2697. https://doi.org/10.3390/en14092697.
Gerner, Gabriel, et al. “Sewage Sludge Treatment by Hydrothermal Carbonization : Feasibility Study for Sustainable Nutrient Recovery and Fuel Production.” Energies, vol. 14, no. 9, 2021, p. 2697, https://doi.org/10.3390/en14092697.


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