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Publication
Characterization of Lignocellulosic Byproducts from the Portuguese Forest: Valorization and Sustainable Use
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| 1.85 MB | Adobe PDF |
Advisor(s)
Abstract(s)
The increasing emphasis on environmental sustainability has placed biomass as a versatile
and renewable resource, while the management and disposal of forest byproducts remain
a significant challenge. This study explores the valorization of forest biomass residues
derived from Pinus pinaster, Pinus pinea, and the invasive species Acacia dealbata, with a
focus on their potential application as bioadsorbents. A comprehensive physicochemical
characterization was conducted for different biomass fractions (leaves, needles, and
branches of varying diameters). Leaves and needles contained higher amounts of
extractives (from 7.7% in acacia leaves to 18.8% in maritime pine needles) and ash (3.4 and
4.2% in acacia leaves and stone pine needles, respectively), whereas branches contained
more holocellulose (from 59.6% in P. pinea small branches to 79.2% in P. pinaster large
branches). ATR-FTIR and pHpzc analyses indicated compositional and surface charge
differences, with higher pHpzc values in A. dealbata relative to Pinus. TG analysis showed
that acacia large branches degraded at a lower temperature (320 °C) compared to Pinus
species (440–450 °C). Overall, the findings highlight the suitability of these underutilized
forest byproducts as bioadsorbents, contributing to the advancement of circular economy
practices.
Description
Keywords
Pines Acacia biomass physical-chemical characterization bioadsorbents forestry residues