Materials,
Journal Year:
2024,
Volume and Issue:
17(16), P. 3945 - 3945
Published: Aug. 8, 2024
The
presented
work
offers
an
innovative
process
scheme
for
valorizing
Pb-Zn
slag,
which
involves
crushing,
grinding,
and
separation
techniques
to
concentrate
valuable
components
(non-ferrous
metals).
This
methodology
could
have
a
significant
impact
on
the
global
beneficiation
of
metallurgical
slags
since
it
is
significantly
more
simple,
environmentally
friendly,
cost-effective
than
standard
pyro-
hydrometallurgical
procedures.
According
previous
physicochemical
mineralogical
studies,
slag
secondary
raw
material.
inhomogeneous
technogenic
resource
contains
substantial
amounts
non-ferrous
metals
(Pb,
Zn,
Cu,
Ag).
However,
laboratory
tests
indicated
that
highly
uneven
metals,
ranging
from
several
g/ton
tens
g/ton.
main
issue
traditional
procedures
releasing
beneficial
elements
are
not
commercially
viable
"trapped"
within
amorphous
aluminosilicates
or
intergrowths
alloy
grains
glassy
phases.
Gravity
concentration
(Wilfley
13
shaking
table)
magnetic
(Davis
separator
disk
separator)
were
used
obtain
final
following
comminution
grindability
testing.
gravity
proved
effective.
Namely,
separators
nor
adequately
separate
because
they
merged
together
with
iron-bearing
minerals
in
grains.
With
approach,
12.99%
processed
belonged
∆T
fraction
(concentration
metal
alloys),
while
remaining
87%
corresponded
tailings
(∆L).
total
recovered
Pb,
Ag
∆L
fractions
5.28%,
6.69%,
0.58%,
76.12
ppm
1.22%,
6.05%,
0.43%,
15.26
ppm,
respectively.
streamlined
approach
can
reduce
need
hazardous
chemicals
refinement
operations,
as
well
extremely
high
temperatures
required
pyrometallurgical
processing.
first
study
investigate
viability
this
novel
methodology,
direct
examinations
feed
various
alternative
technologies
concentration.
After
extracting
aluminosilicate
part
be
reapplied
material
building
sector,
adding
circularity
suggested
approach.
Journal of Environmental Management,
Journal Year:
2024,
Volume and Issue:
358, P. 120906 - 120906
Published: April 17, 2024
In
the
context
of
sustainable
development,
this
study
investigates
intricate
dynamics
among
good
governance,
renewable
energy
investment,
and
green
finance
in
BRICS
nations.
The
aim
is
to
assess
how
governance
effectiveness
moderate
impact
investment
on
CO
Geoscience Frontiers,
Journal Year:
2024,
Volume and Issue:
15(5), P. 101873 - 101873
Published: May 21, 2024
The
energy
access
challenge
remains
a
significant
barrier
to
sustainable
development,
with
millions
of
people
still
needing
modern
services.
Fossil
fuels
have
played
crucial
role
in
meeting
electricity
demand,
but
they
face
challenges
and
drawbacks
terms
environmental
sustainability,
security,
climate
change.
This
study
examines
how
renewable
non-renewable
generation
capacity
impacted
the
environment
53
upper-middle-income
countries
from
1990
2020,
using
alternative
sources
as
mediating
variables.
findings
this
provide
valuable
insights
into
complex
relationship
between
capacity,
access,
sources,
conditions
countries.
positive
emphasizes
importance
potential
mitigating
degradation.
Additionally,
indicate
that
also
plays
shaping
patterns,
higher
levels
being
associated
increased
decreased
reliance
on
sources.
These
highlight
urgent
need
for
policies
measures
promote
adoption
prioritize
mitigate
degradation
achieve
development
goals.
Geosystems and Geoenvironment,
Journal Year:
2024,
Volume and Issue:
unknown, P. 100288 - 100288
Published: May 1, 2024
Concerns
that
anthropologic
carbon
emissions
will
result
in
catastrophic
climate
change
have
resulted
Net
Zero
policies
energized
a
clean
energy
transition
developed,
particularly
western,
countries.
This
is
resulting
attempts
to
produce
so-called
'renewable'
using
critical
metals
that,
unfortunately,
are
largely
non-renewable.
The
essential
this
occur
rare
mineral
deposits
(0.02%
of
the
Earth's
land
surface)
∼10
>10,000
times
enriched
relative
their
crustal
abundance.
part
larger
scale
systems
require
conjunction
parameters
involve
natural
recycling
through
crust
and
mantle
via
unique
subduction
system
during
tectonic
evolution
continents.
As
each
continent
had
its
own
history,
global
distribution
these
metallic
very
heterogeneous.
A
major
geopolitical
issue
for
metal
supply
represented
by
BRICS
as
an
economic
group
comprises
Brazil,
Russia,
India,
China,
South
Africa,
all
metal-endowed
nations,
with
only
Australia
Canada
few
lesser
endowed
countries
firmly
aligned
another
strategically
allied
USA.
In
stark
contrast,
well-endowed
China
has
abundant
obtains
trace
processing
metallurgical
biproducts
base
ores,
leading
growing
domination
industry.
Critical
metals,
Ga,
Ge,
REEs,
graphite
already
used
trade
disputes
among
some
industrial
weaponization
such
Ni
on
markets
evident.
From
geoscience
viewpoint,
short
term,
exploration
needed
provide
more
homogeneous
deposits.
However,
hampered
increasing
environmental,
human
rights
issues
sovereign
risks
becoming
ever
challenging
most
mining
companies
western
requires
circular
economy
involving
priority.
Natural Resources Forum,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 9, 2025
ABSTRACT
The
objective
of
this
article
is
to
investigate
the
impact
happiness
on
environmental
degradation
utilizing
annual
data
for
36
OECD
nations
from
2005
2021.
To
achieve
goal,
GMM,
Driscoll–Kray,
and
MMQR
methodologies
were
employed.
According
empirical
findings,
serves
as
a
crucial
variable
in
mitigating
degradation.
Moreover,
investigation
probed
into
income,
technological
advances,
democracy,
population,
renewable
energy
consumption
outcomes
indicate
that
EKC
hypothesis
holds
countries
innovations,
have
In
contrast,
population
growth,
factor
exacerbates
degradation,
should
be
cause
concern.
