Journal of CO2 Utilization,
Journal Year:
2024,
Volume and Issue:
82, P. 102770 - 102770
Published: April 1, 2024
Escalating
industrial
CO2
emissions
necessitate
innovative
carbon
capture
and
utilization
strategies.
This
study
explores
the
potential
of
mineral-carbonation
steelmaking
slags,
particularly
White
Slag
(WS)
various
Refractory
Wastes
(RWs),
to
mitigate
valorize
wastes.
Experiments
were
performed
with
waste
materials
from
production
lines
at
CELSA
(Barcelona,
Spain).
We
delved
into
direct
aqueous
carbonation,
evaluating
performance
characteristics
these
wastes
under
different
experimental
conditions.
Our
findings
reveal
that
all
slags
can
effectively
sequester
CO2.
process
is
effective
not
only
for
pure
but
also
diluted
flue
gases
mild
conditions
(≤
100
ºC,
≤
6
bar).
Specifically,
WS
exhibited
peak
sequestration
capacities
(SC)
359.79
gCO2/kgslag
(pure
CO2)
276.65
(diluted
gas).
In
contrast,
RWs
presented
kinetic,
reaching
a
maximum
SC
311
after
prolonged
times.
Given
large
inhomogeneity
RWs,
individual
analysis
distinct
RW
fractions
revealed
significant
variations
in
carbonation
performance.
Tundish
highest
capacity,
emphasizing
importance
source
mineral
composition
carbonation.
Chemical
morphological
evaluations
confirmed
transformation
CaO
CaCO3,
MgO
remaining
largely
inert.
Additionally,
indicated
environmental
benefits
by
reducing
mobility
toxic
metals,
Pb,
suggesting
an
ancillary
avenue
treatment.
underscores
utility
mineralization
as
dual-benefit
approach
within
circular
economy
framework,
offering
insights
its
application
sustainable
management
emission
reduction
steel
industry.
Water Science & Technology Water Supply,
Journal Year:
2024,
Volume and Issue:
24(2), P. 517 - 542
Published: Jan. 24, 2024
Abstract
Southeast
Asia
is
vulnerable
to
climate
change
with
over
half
of
its
population
already
being
impacted
by
drought,
flooding,
and
rise
in
sea
levels
recently.
This
work
reviews
the
current
water
resource
challenges
Indonesia,
prone
rising
impacts
change.
A
baseline
assessment
Indonesia's
drinking
resources
related
original
sources
presented.
In
response
a
growing
concern
chronic
that
undermine
supply
nationwide,
this
study
analyses
safety
supervision.
To
accomplish
this,
literature
survey
(100
studies
published
during
2000–2023
period)
was
performed
identify
regional
groundwater
sustainability
security
issues.
Among
main
findings
study,
only
10%
rainfall
infiltrates
groundwater,
while
70%
rivers
are
heavily
polluted
domestic
waste.
During
period,
availability
decreased
1,200
m3/year
2020,
35%
economically
feasible
for
reuse.
The
deficit
Indonesia
estimated
be
5.5
hm3/year
roughly
67%
population's
demand
satisfied
2021.
Although
might
fulfilled
private
vendors,
supply/demand
forecasts
2030
suggest
gap
could
not
closed
increasing
supply.
Journal of Environmental Management,
Journal Year:
2024,
Volume and Issue:
351, P. 119908 - 119908
Published: Jan. 1, 2024
The
construction
industry
generates
a
substantial
volume
of
solid
waste,
often
destinated
for
landfills,
causing
significant
environmental
pollution.
Waste
recycling
is
decisive
in
managing
waste
yet
challenging
due
to
labor-intensive
sorting
processes
and
the
diverse
forms
waste.
Deep
learning
(DL)
models
have
made
remarkable
strides
automating
domestic
recognition
sorting.
However,
application
DL
recognize
derived
from
construction,
renovation,
demolition
(CRD)
activities
remains
limited
context-specific
studies
conducted
previous
research.
This
paper
aims
realistically
capture
complexity
streams
CRD
context.
study
encompasses
collecting
annotating
images
real-world,
uncontrolled
environments.
It
then
evaluates
performance
state-of-the-art
automatically
recognizing
in-the-wild.
Several
pre-trained
networks
are
utilized
perform
effectual
feature
extraction
transfer
during
model
training.
results
demonstrated
that
models,
whether
integrated
with
larger
or
lightweight
backbone
can
composition
in-the-wild
which
useful
automated
outcome
emphasized
applicability
across
various
industrial
domains,
thereby
contributing
resource
recovery
encouraging
management
efforts.
