L773:0956 053X OR L773:1879 2456
Sökning: L773:0956 053X OR L773:1879 2456 > (2020-2024) > Co-hydrothermal car...
- Benavente, VeronicaRISE,Umeå universitet,Kemiska institutionen,RISE Processum AB, Hörneborgsvägen 10, Örnsköldsvik, Sweden,Bioraffinaderi och energi,Umeå university, Sweden (författare)
Co-hydrothermal carbonization of microalgae and digested sewage sludge : Assessing the impact of mixing ratios on the composition of primary and secondary char
- Artikel/kapitelEngelska2024
Förlag, utgivningsår, omfång ...
- Elsevier,2024
- electronicrdacarrier
Nummerbeteckningar
- LIBRIS-ID:oai:DiVA.org:umu-218868
- https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-218868URI
- https://doi.org/10.1016/j.wasman.2023.11.039DOI
- https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-68831URI
Kompletterande språkuppgifter
- Språk:engelska
- Sammanfattning på:engelska
Ingår i deldatabas
- SwePubSwePub
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Anmärkningar
- The authors would like to thank Bio4Energy, a strategic research environment appointed by the Swedish government, for supporting this work. We also thank the Industrial Doctoral School for Research and Innovation of Umeå University (Sweden), and Vatten och Avfallskompetens I Norr AB (Vakin AB), for supporting this work. We thank VAKIN for providing the sewage sludge, and the Swedish University of Agricultural Sciences (SLU) (Sweden) for providing the microalgae. We specifically thank Francesco Gentili and Johan Sandgren for the sampling of microalgae and sewage sludge, respectively, and Pär Jonsson for processing GC-MS data.
- The role of microalgae cultivation in wastewater treatment and reclamation has been studied extensively, as has the potential utility of the resulting algal biomass. Most methods for processing such biomass generate solid residues that must be properly managed to comply with current sustainable resource utilization requirements. Hydrothermal carbonization (HTC) can be used to process both individual wet feedstocks and mixed feedstocks (i.e., co-HTC). Here, we investigate co-HTC using microalgae and digested sewage sludge as feedstocks. The objectives were to (i) study the material's partitioning into solid and liquid products, and (ii) characterize the products’ physicochemical properties. Co-HTC experiments were conducted at 180–250°C using mixed microalgae/sewage sludge feedstocks with the proportion of sewage sludge ranging from 0 to 100 %. Analyses of the hydrochar composition and the formation and composition of secondary char revealed that the content of carbonized material in the product decreased as the proportion of sewage sludge in the feedstock increased under fixed carbonization conditions. The properties of the hydrochars and the partitioning of material between the liquid phase and the hydrochar correlated linearly with the proportion of microalgae in mixed feedstocks, indicating that adding sewage sludge to microalgae had weak or non-existent synergistic effects on co-HTC outcomes. However, the proportion of sewage sludge in the feedstock did affect the secondary char. For example, adding sewage sludge reduced the abundance of carboxylic acids and ketones as well as the concentrations of higher molecular weight cholesterols. Such changes may alter the viable applications of the hydrochar.
Ämnesord och genrebeteckningar
- NATURVETENSKAP Kemi Annan kemi hsv//swe
- NATURAL SCIENCES Chemical Sciences Other Chemistry Topics hsv//eng
- NATURVETENSKAP Biologi Mikrobiologi hsv//swe
- NATURAL SCIENCES Biological Sciences Microbiology hsv//eng
- Chemical composition
- Co-HTC
- Hydrochar
- Mixed feedstocks
- Thermogravimetric analysis
- Wastewater treatment by-products
Biuppslag (personer, institutioner, konferenser, titlar ...)
- Pérez, CarlaUmeå universitet,Kemiska institutionen,Industrial Doctoral School, Umeå University, Umeå, Sweden(Swepub:umu)cape2924 (författare)
- Jansson, StinaUmeå universitet,Kemiska institutionen,Umeå university, Sweden(Swepub:umu)stakan01 (författare)
- Umeå universitetKemiska institutionen (creator_code:org_t)
Sammanhörande titlar
- Ingår i:Waste Management: Elsevier174, s. 429-4380956-053X1879-2456
Internetlänk
- https://doi.org/10.1016/j.wasman.2023.11.039Fulltext
- https://umu.diva-portal.org/smash/get/diva2:1824331/FULLTEXT01.pdffulltext:print
- https://ri.diva-portal.org/smash/get/diva2:1824783/FULLTEXT01.pdffulltext:print
- https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-218868
- https://doi.org/10.1016/j.wasman.2023.11.039
- https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-68831
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- Pérez, Carla
- Jansson, Stina
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