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Potential use of plant biomass from treatment wetland systems for producing biofuels through a biocrude green-biorefining platform

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The potential of using the biomass of four wetland plant species (Iris pseudacorus, Juncus effusus, Phragmites australis and Typha latifolia) grown in treatment wetland systems for producing high-value materials using Hydro-Thermal Liquefaction (HTL) was investigated. The results shows that the wetland plant biomass is suitable for biocrude and biochar production. The hy-drothermal liquefaction products (biocrude, biochar, aqueous and gaseous phase) yields vary according with the specific biomass composition of the species. Furthermore, we document that the biomass composition can be affected by the growing condition (treatment wetland or natural unpolluted conditions) of the plants. None of the single components seem to have a determinant effect on the biocrude yields which was reported around 30% for all the analyzed plants. On the contrary, the biochar yields seem to be affected by the composition of the biomass, obtaining different yields for the different plant species, with biochar yields values from around 12% to 22%, being the Phragmites australis the one that reported the highest average yield. Finally, the com-pounds detected in the aqueous phase are different from one plant species to the other, and their concentration represents a potential source of pollution of water that should receive special at-tention.
Original languageEnglish
Publication statusSubmitted - 26 Oct 2021

    Research areas

  • Treatment wetlands, BIOCRUDE, Hydrothermal Liquefaction, BIOMASS, green biorefinery

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