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Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-28990
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dc.contributor.authorGerner, Gabriel-
dc.contributor.authorChung, Jae Wook-
dc.contributor.authorMeyer, Luca-
dc.contributor.authorWanner, Rahel-
dc.contributor.authorHeiniger, Simon-
dc.contributor.authorSeiler, Daniel-
dc.contributor.authorKrebs, Rolf-
dc.contributor.authorTreichler, Alexander-
dc.contributor.authorKontic, Roman-
dc.contributor.authorKulli Honauer, Beatrice-
dc.date.accessioned2023-10-27T13:58:08Z-
dc.date.available2023-10-27T13:58:08Z-
dc.date.issued2023-
dc.identifier.issn1996-1073de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/28990-
dc.description.abstractIn recent years, promising developments in the hydrothermal carbonization (HTC) of sewage sludge, as well as the potential to reclaim phosphorus and nitrogen, have emerged. In this study, the HTC of digested sewage sludge (DSS) was investigated for the downstream production of heavy metal (HM)-free fertilizer and the use of freeze concentration (FC) as a novel technology for process water treatment. To obtain clean fertilizer, phosphatic acid extracts were first treated with ion-exchange resins to remove dissolved HM, as well as phosphorus precipitating agents (i.e., aluminum and iron). Over 98% of the aluminum (Al) and 97% of the iron (Fe) could be removed in a single treatment step. The purified extract was then used for the precipitation of HM-free struvite crystals, with P-recovery rates exceeding 89%. Process water (PW) makes up the largest share of the two main HTC-products (i.e., hydrochar and PW) and is very rich in organic compounds. Compared to evaporation or membrane separation, FC is a promising technology for concentrating solutes from PW. Separation experiments resulted in the recovery of over 90% of the dissolved compounds in the concentrate. In our study, the concentrate was later utilized as an ammonium source for struvite precipitation, and the subsequent aerobic digestion of the remaining ice water resulted in an 85% reduction in chemical oxygen demand (COD) in 15 days.de_CH
dc.language.isoende_CH
dc.publisherMDPIde_CH
dc.relation.ispartofEnergiesde_CH
dc.rightshttp://creativecommons.org/licenses/by/4.0/de_CH
dc.subjectHydrothermal carbonizationde_CH
dc.subjectSewage sludgede_CH
dc.subjectProcess water treatmentde_CH
dc.subjectFertilizer productionde_CH
dc.subjectDüngerherstellungde_CH
dc.subjectProzesswasserbehandlungde_CH
dc.subjectHydrothermale Karbonisierungde_CH
dc.subjectKlärschlammde_CH
dc.subject.ddc660: Technische Chemiede_CH
dc.titleHydrothermal carbonization of sewage sludge : new improvements in phosphatic fertilizer production and process water treatment using freeze concentrationde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementLife Sciences und Facility Managementde_CH
zhaw.organisationalunitInstitut für Chemie und Biotechnologie (ICBT)de_CH
zhaw.organisationalunitInstitut für Umwelt und Natürliche Ressourcen (IUNR)de_CH
dc.identifier.doi10.3390/en16207027de_CH
dc.identifier.doi10.21256/zhaw-28990-
zhaw.funding.euNode_CH
zhaw.issue20de_CH
zhaw.originated.zhawYesde_CH
zhaw.pages.start7027de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume16de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.webfeedBodenökologiede_CH
zhaw.webfeedUmweltbiotechnologie und Bioenergiede_CH
zhaw.author.additionalNode_CH
zhaw.display.portraitYesde_CH
zhaw.monitoring.costperiod2023de_CH
Appears in collections:Publikationen Life Sciences und Facility Management

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Gerner, G., Chung, J. W., Meyer, L., Wanner, R., Heiniger, S., Seiler, D., Krebs, R., Treichler, A., Kontic, R., & Kulli Honauer, B. (2023). Hydrothermal carbonization of sewage sludge : new improvements in phosphatic fertilizer production and process water treatment using freeze concentration. Energies, 16(20), 7027. https://doi.org/10.3390/en16207027
Gerner, G. et al. (2023) ‘Hydrothermal carbonization of sewage sludge : new improvements in phosphatic fertilizer production and process water treatment using freeze concentration’, Energies, 16(20), p. 7027. Available at: https://doi.org/10.3390/en16207027.
G. Gerner et al., “Hydrothermal carbonization of sewage sludge : new improvements in phosphatic fertilizer production and process water treatment using freeze concentration,” Energies, vol. 16, no. 20, p. 7027, 2023, doi: 10.3390/en16207027.
GERNER, Gabriel, Jae Wook CHUNG, Luca MEYER, Rahel WANNER, Simon HEINIGER, Daniel SEILER, Rolf KREBS, Alexander TREICHLER, Roman KONTIC und Beatrice KULLI HONAUER, 2023. Hydrothermal carbonization of sewage sludge : new improvements in phosphatic fertilizer production and process water treatment using freeze concentration. Energies. 2023. Bd. 16, Nr. 20, S. 7027. DOI 10.3390/en16207027
Gerner, Gabriel, Jae Wook Chung, Luca Meyer, Rahel Wanner, Simon Heiniger, Daniel Seiler, Rolf Krebs, Alexander Treichler, Roman Kontic, and Beatrice Kulli Honauer. 2023. “Hydrothermal Carbonization of Sewage Sludge : New Improvements in Phosphatic Fertilizer Production and Process Water Treatment Using Freeze Concentration.” Energies 16 (20): 7027. https://doi.org/10.3390/en16207027.
Gerner, Gabriel, et al. “Hydrothermal Carbonization of Sewage Sludge : New Improvements in Phosphatic Fertilizer Production and Process Water Treatment Using Freeze Concentration.” Energies, vol. 16, no. 20, 2023, p. 7027, https://doi.org/10.3390/en16207027.


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