Characterization of the Municipal Plastic and Multilayer Packaging Waste in Three Cities of the Baltic States
Sustainability,
Journal Year:
2025,
Volume and Issue:
17(3), P. 986 - 986
Published: Jan. 25, 2025
The
composition
of
plastic
and
multilayer
packaging
waste
was
assessed
in
the
mixed
municipal
solid
(MSW)
streams
Kaunas
(Lithuania),
Daugavpils
(Latvia)
Tallinn
(Estonia)
municipalities.
For
analysis
samples
MSW
streams,
authors
used
manual
sorting
a
visual
recognition
method.
Composition
from
separately
collected
multi-family
single-family
households
performed
research
group
combined
near-infrared
(NIR)
spectroscopy
methods.
findings
reveal
that
percentage
distribution
within
stream
is
relatively
consistent
across
municipalities
Kaunas,
Tallinn,
comprising
40.16%,
36.83%
35.09%,
respectively.
However,
notable
variation
emerges
when
examining
streams.
In
this
category,
proportion
total
ranges
62.05%
to
74.7%
for
residential
buildings
44.66%
56.89%
buildings.
provided
further
insights
enhanced
recycling
potential
different
materials
through
improved
sorting.
Language: Английский
Superstructure optimization for management of low-density polyethylene plastic waste
Green Chemistry,
Journal Year:
2024,
Volume and Issue:
26(17), P. 9476 - 9487
Published: Jan. 1, 2024
The
TOC
presents
the
decision-making
performed
in
superstructure
for
determining
optimal
processing
path
of
waste
LDPE.
selection
is
based
on
two
objectives,
emissions
and
economics
that
are
represented
axes.
Language: Английский
Design of the Transition for Sustainable Plastic Waste Management under Carbon Policies in the United States
Industrial & Engineering Chemistry Research,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 10, 2025
The
growing
environmental
and
economic
challenges
posed
by
plastic
waste
demand
innovative
strategic
solutions.
This
study
presents
a
decision-making
framework
using
mathematical
programming
to
determine
the
technologies,
their
location,
transportation
method
(electric
or
with
conventional
trucks)
under
different
scenarios:
maximizing
profit,
decarbonization,
circularity,
profit
carbon
tax
cap
policies.
Results
suggest
upcycling
pyrolysis
for
profit;
hydrocracking
mechanical
recycling
decarbonization;
hydrocracking,
pyrolysis,
schemes;
combined
chemical
circularity.
These
results
highlight
of
simultaneously
circularity
meeting
2050
decarbonization
targets
proposed
Paris
agreement
as
involves
highly
energy
intensive
technology.
assessment
policies
shows
that
current
taxes
are
not
sufficient
achieving
those
targets.
To
address
this,
either
higher
policy
mechanism
needed
four
recommended
technologies:
based
on
recycling,
recycling.
Language: Английский
Discovery and adaptation of microbes that degrade oxidized low-density polyethylene films
Journal of Industrial Microbiology & Biotechnology,
Journal Year:
2024,
Volume and Issue:
51
Published: Jan. 1, 2024
There
is
a
growing
interest
in
developing
methodology
for
effectively
cleaving
carbon-carbon
(C-C)
bonds
polymer
backbones
through
bioconversion
processes
that
utilize
microorganisms
and
their
enzymes.
This
upsurge
of
driven
by
the
goal
achieving
circular
economy.
Polyolefin
post-consumer
plastics
are
substantial
source
carbon,
but
recycling
potential
severely
limited.
Upcycling
routes
needed
converting
polyolefin
into
value-added
products
while
concurrently
mitigating
adverse
environmental
effects.
These
materials
contain
carbon-based
chemicals
can,
principle,
serve
as
feedstock
microbial
metabolism.
Some
microbes
have
been
reported
to
grow
on
plastics,
rate
biodegradation
insufficient
industrial
processes.
In
this
study,
low-density
polyethylene
(LDPE)
films
were
subjected
two
mild
ozone-based
oxidation
treatments,
which
facilitated
biodegradation.
The
degree
was
determined
Fourier
transform
infrared
spectroscopy
via
analysis
carbonyl
index
(1,710/1,460
cm-1),
ranged
from
0.3
2.0,
also
carboxylic
acid
content.
Following
films,
studies
conducted
investigate
ability
panel
polyvinyl
alcohol-degrading
degrade
oxidized
films.
A
defined
minimal
medium
used
cultivate
assess
growth
45
days
cultivation,
most
effective
strains
further
cultivated
up
three
additional
generations
film
substrates
improve
LDPE
After
these
enrichments,
we
identified
strain
third
generation
Pseudomonas
sp.
Rh926
exhibited
significant
cell
reduced
mass
25%
30
days,
demonstrating
an
enhanced
capacity
degrading
Language: Английский