Addressing Plastic Waste Challenges in Africa: The Potential of Pyrolysis for Waste-to-Energy Conversion
Clean Technologies,
Journal Year:
2025,
Volume and Issue:
7(1), P. 20 - 20
Published: March 5, 2025
Plastic
waste
poses
a
significant
challenge
in
Africa
and
around
the
world,
with
its
volume
continuing
to
increase
at
an
alarming
rate.
In
Africa,
estimated
25–33%
of
daily
is
made
up
plastic,
posing
threat
environment,
marine
life,
human
health.
One
potential
solution
this
problem
waste-to-energy
recycling,
such
as
pyrolysis,
which
involves
conversion
materials
into
oil,
char,
non-condensable
gasses
through
thermochemical
process
absence
oxygen.
Given
abundance
continent’s
energy
challenges,
pyrolysis
offers
sustainable
solution.
This
review
delves
concept
products,
thermodynamics,
endothermic
kinetics,
presenting
it
promising
way
address
plastic
Africa.
Despite
African
Union’s
goal
recycle
waste,
continent
faces
barriers
achieving
target,
including
infrastructural,
economic,
social
difficulties.
It
crucial
implement
strategies
for
managing
mitigate
environmental
degradation
promote
cleaner
healthier
living
environment.
Pyrolysis
technology
highlighted
viable
management,
can
convert
valuable
byproducts
syngas.
Case
studies
from
countries
like
South
Nigeria
demonstrate
scaling
management
issues
while
generating
job
opportunities.
underscores
need
investment,
regulatory
support,
public
awareness
overcome
challenges
unlock
full
Embracing
method
could
lead
economic
benefits
continent.
Language: Английский
Quantitative and Qualitative Characterization of Food Waste for Circular Economy Strategies in the Restaurant Sector of Riobamba, Ecuador: A Case Study Approach
Biomass,
Journal Year:
2025,
Volume and Issue:
5(2), P. 18 - 18
Published: March 25, 2025
The
aim
of
this
study
is
the
quantitative
and
qualitative
characterization
food
waste
from
restaurant
sector
in
Riobamba,
Ecuador
as
part
circular
economy
efforts.
A
weekly
analysis
generation
data
collected
13
participating
restaurants
showed
that
average
daily
generated
was
18.48
kg/restaurant/day.
highest
percentage
(55%)
produced
by
organic
waste,
which
primarily
composed
vegetables.
Plastics
represented
most
recyclable
(21%),
24%
disposable.
With
a
low
dry
matter
content
24.33
±
5.12%
an
moisture
level
75.68
5.12%,
high
indicates
its
potential
for
value-adding
through
biological
recycling
processes
like
anaerobic
digestion
composting.
Fruit
vegetable
had
levels
(80.3
2.54%
81.2
2.75%,
respectively),
made
them
perfect
composting
biogas
production.
However,
contents
differed
greatly
amongst
categories.
increased
concentration
animal
protein
(54.5
4.30%)
indicated
it
may
be
converted
into
products
with
added
value,
such
meal
oils.
Plant
needs
to
processed
quickly
avoid
spoiling
because
extraordinarily
(95.7
3.20%)
(4.3
3.20%).
findings
underscore
necessity
focused
measures,
composting,
digestion,
enhanced
recycling,
optimize
resource
recovery
mitigate
environmental
consequences.
Language: Английский
Global Trends and Strategic Pathways for Waste Plastics Depolymerization in the Circular Economy
Cleaner Waste Systems,
Journal Year:
2025,
Volume and Issue:
unknown, P. 100292 - 100292
Published: April 1, 2025
Language: Английский
Thermal Conversion of Non-recyclable Discarded Fishing Nets from the Gulf of Thailand for Marketable Resource Recovery
Process Safety and Environmental Protection,
Journal Year:
2025,
Volume and Issue:
unknown, P. 107228 - 107228
Published: April 1, 2025
Language: Английский
Oxygen‐Tolerant ATRP Depolymerization Enabled by an External Radical Source
Macromolecular Rapid Communications,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 22, 2025
Abstract
Although
the
chemical
recycling
of
polymers
synthesized
by
controlled
radical
polymerization
enables
recovery
pristine
monomer
at
low
temperatures,
it
operates
efficiently
under
strictly
anaerobic
conditions.
Instead,
oxygen‐tolerant
depolymerizations
are
scarce,
and
either
restricted
to
use
a
boiling
co‐solvent
or
performed
in
closed
vessels,
often
suffering
from
conversions.
Here,
an
open‐vessel,
depolymerization
atom
transfer
(ATRP)‐synthesized
is
introduced,
leading
high
percentages
regeneration
(>90%
efficiency).
Dissolved
oxygen
eliminated
utilizing
catalyst
loadings,
lower
loadings
combined
with
initiator.
Notably,
methodology
compatible
various
solvents
(i.e.,
anisole,
1,2,4‐trichlorobenzene
(TCB),
1,2‐dichlorobenzene
(DCB),
etc.)
range
commercially
available
ligands
including
tris
2‐(dimethylamino)ethylamine
(Me
6
TREN)
tris(2‐pyridylmethyl)amine
(TPMA),
as
well
more
inexpensive
alternatives
such
tris(2‐aminoethyl)amine
(TREN)
N,N,N‘,N‘‘,N‘‘
‐pentamethyldiethylenetriamine
(PMDETA).
Language: Английский