Abstract
Plastic and biomass
waste pose a serious environmental
risk; thus,
herein, we mixed biomass waste with plastic bottle waste (PET) to
produce char composite materials for producing a magnetic char composite
for better separation when used in water treatment applications. This
study also calculated the life cycle environmental impacts of the
preparation of adsorbent material for 11 different indicator categories.
For 1 functional unit (1 kg of pomace leaves as feedstock), abiotic
depletion of fossil fuels and global warming potential were quantified
as 7.17 MJ and 0.63 kg CO
2
equiv for production of magnetic
char composite materials. The magnetic char composite material (MPBC)
was then used to remove crystal violet dye from its aqueous solution
under various operational parameters. The kinetics and isotherm statistical
theories showed that the sorption of CV dye onto MPBC was governed
by pseudo-second-order, and Langmuir models, respectively. The quantitative
assessment of sorption capacity clarifies that the produced MPBC exhibited
an admirable ability of 256.41 mg g
–1
. Meanwhile,
the recyclability of 92.4% of MPBC was demonstrated after 5 adsorption/desorption
cycles. Findings from this study will inspire more sustainable and
cost-effective production of magnetic sorbents, including those derived
from combined plastic and biomass waste streams.
Combining plastic and biomass waste streams in the synthesis
of magnetic char composite material for dye removal in water treatment.