Ore and Energy Resource Geology,
Journal Year:
2024,
Volume and Issue:
17, P. 100056 - 100056
Published: June 18, 2024
Characterizing
the
leaching
behavior
and
temporal
variability
of
tailings
is
conducive
to
managing
preventing
ionic
toxicity
indigenous
communities
environment.
For
this
purpose,
work
selected
Cu-Pb-Zn
waste
from
Huili
County,
Sichuan
province
in
China,
as
a
research
case,
conducting
60-day
column
experiment
simulate
tailings.
The
results
reveal
that
weathering
features
tailings,
both
salt-based
ions
potential
toxic
elements
(PTEs),
could
be
subdivided
into
rapid
dissolution
stage
carbonate
stage.
Additionally,
acid
rain
can
accelerate
calcite
dolomite,
well
PTEs.
precedes
dolomite.
A
bulk
release
PTEs
occurs
early
stages,
ranging
approximately
between
10.9%
33.6%
initial
seven
days,
with
As
Zn
showing
notable
significance.
Therefore,
ecological
effects
abnormality
necessitate
thorough
examination,
given
over
an
extended
prolonged
duration.
Acid
promote
ion
desorption
major
minerals,
thereby
facilitating
This
study
emphasizes
pollution
providing
preliminary
understanding
environmental
impacts
may
arise
deposition
acidic
leaching.
Materials,
Journal Year:
2023,
Volume and Issue:
16(21), P. 7004 - 7004
Published: Nov. 1, 2023
The
increasing
accumulation
of
rock
waste
obtained
due
to
ore
processing
and
its
environmental
impacts,
such
as
acid
mine
drainage
elevated
concentrations
heavy
metals
in
soils,
necessitates
the
transformation
mining
technologies
based
on
concept
circular
management.
research
is
aimed
at
improving
parameters
mechanical
activation
effect
produced
technogenic
georesources,
well
expanding
application
scope
disintegrators
field
using
partial
backfill
mined-out
space
when
developing
stratified
deposits.
In
this
regard,
purpose
was
substantiate
extracting
from
enrichment
tailings
their
mechanochemical
ensure
cyclic
involved
three-dimensional
interpolation
methods
used
for
data
graphical
representation.
As
a
result,
following
found
be
characteristic
Sadonsky
degree
zinc
pre-activated
increases
logarithmically
H2SO4
concentration
NaCl
proportion
decrease
3.5
times.
lead
activated
according
Fourier
law
decreasing
mass
concentration,
an
optimal
range
(0.38–0.51%)
decreases
six
One
key
results
justification
applying
case
directed
influence
exerted
components
stowing
strips.
expand
understanding
mechanism
dry
reactivity
unevenness
several
them.
Materials,
Journal Year:
2023,
Volume and Issue:
16(2), P. 726 - 726
Published: Jan. 11, 2023
The
significant
containment
of
the
global
mining
industry
is
caused
by
problem
transition
to
sustainable
metal
extraction
and
integrated
use
technogenic
raw
materials
from
tailings
ore
processing.
modeling
leaching
processes
using
mechanical
activation
polymetallic
material
components
particularly
important
in
expanding
application
as
inert
fillers
filling
mixtures.
This
study
aimed
at
detecting
rotor
speed
factor
on
chemical
mechanochemical
effect
zinc
yield
growth
industry.
In
this
regard,
purpose
was
improve
improving
compositions
methodology
work
included
several
comprehensive
studies:
during
pulp
DESI-11
disintegrator;
enrichment
formation
a
mass
with
different
parameters
component
composition;
curing
cubic
samples
their
testing
IP-1250
press.
Vi
Improved
text
editor
used
prepare
algorithms
for
deterministic
methods
three-dimensional
interpolation
Python
language.
experimental
results
were
graphically
displayed
Gnuplot.
agitation
waste
obtained
Sadonskiy
district
fact
that
NaCl
concentration
decreased
13
1%
H2SO4
stabilization
within
0.5
0.6%
led
3-time
increase
pulp,
according
polynomial
law
(from
28
91%).
expand
idea
mechanism
strength
gain
under
mixture,
well
changes
efficiency
ratios
two
types
lixiviants
(sulphuric
acid
sodium
chloride)
solution.
Toxics,
Journal Year:
2023,
Volume and Issue:
11(5), P. 462 - 462
Published: May 16, 2023
There
is
a
need
to
define
mine
tailings
in
clear,
precise,
multidisciplinary,
transdisciplinary,
and
holistic
manner,
considering
not
only
geotechnical
hydraulic
concepts
but
also
integrating
environmental
geochemical
aspects
with
implications
for
the
sustainability
of
mining.
This
article
corresponds
an
independent
study
that
answers
questions
concerning
definition
socio-environmental
risks
linked
chemical
composition
by
examining
practical
experience
industrial-scale
copper
gold
mining
projects
Chile
Peru.
Definitions
analysis
key
responsible
management
tailings,
such
as
characterization
metallic–metalloid
components,
non-metallic
metallurgical
reagents,
risk
identification,
among
others,
are
presented.
Implications
potential
impacts
from
generation
acid
rock
drainage
(ARD)
discussed.
Finally,
concludes
potentially
toxic
both
communities
environment,
cannot
be
considered
inert
innocuous
materials;
thus,
require
safe,
controlled,
application
most
high
standards,
use
best
available
technologies
(BATs),
applicable
practices
(BAPs),
implementation
(BEPs)
avoid
impact
due
accidents
or
failure
storage
facilities
(TSFs).
Water,
Journal Year:
2025,
Volume and Issue:
17(5), P. 760 - 760
Published: March 5, 2025
To
achieve
the
resource
utilization
of
iron
ore
tailings
(IOTs),
two
different
IOTs
were
investigated
as
sustainable
adsorbents
for
ciprofloxacin
(CIP)
removal
from
aqueous
systems.
Through
systematic
batch
experiments,
key
adsorption
parameters
including
initial
pH,
adsorbent
dosage,
contact
time,
ionic
strength,
and
temperature
comprehensively
evaluated.
The
results
showed
that
CIP
by
remained
relatively
stable
across
a
broad
pH
range
(2–10),
with
maximum
capacities
5-IOT
14-IOT
observed
at
values
10.1
9.16,
respectively.
Competitive
ion
experiments
revealed
gradual
decrease
in
capacity
increasing
strength
(Na⁺,
Mg2⁺,
Ca2⁺).
Thermodynamic
analyses
indicated
an
inverse
relationship
between
temperature,
yielding
(Qmax)
16.64
mg/g
(5-IOT)
13.68
(14-IOT)
288.15
K.
Mechanistic
investigations
combining
material
characterization
modeling
identified
exchange
predominant
interaction
mechanism.
Notably,
trace
elements
(Cd,
Co,
Cr,
Cu,
Fe,
Ni,
Pb,
Zn)
released
during
leaching
tests,
concentrations
consistently
below
environmental
safety
thresholds.
A
back-propagation
artificial
neural
network
(BP-ANN)
optimized
architecture
(8-11-1
topology)
demonstrated
high
predictive
accuracy
(MSE
=
0.0031,
R2
0.9907)
behavior.
These
findings
suggested
cost-effective,
environmentally
compatible
remediation,
offering
dual
advantages
pharmaceutical
pollutant
industrial
waste
valorization.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(20)
Published: March 16, 2024
Abstract
Abiotic
CH
4
production
driven
by
Fenton‐type
reactive
oxygen
species
(ROS)
has
been
confirmed
to
be
an
indispensable
component
of
the
atmospheric
budget.
While
chemical
reactions
independent
Fenton
chemistry
ROS
are
ubiquitous
in
nature,
it
remains
unknown
whether
produced
can
drive
abiotic
production.
Here,
we
first
demonstrated
at
soil‐water
interface
under
illumination.
Leveraging
this
finding,
polymeric
carbon
nitrides
(CN
x
)
as
a
typical
analogue
natural
geobattery
material
and
dimethyl
sulfoxide
(DMSO)
methyl
donor
were
used
unravel
underlying
mechanisms.
We
revealed
that
ROS,
photocatalytically
CN
,
oxidize
DMSO
into
with
high
selectivity
91.5
%.
Such
process
was
further
expanded
various
non‐Fenton‐type
reaction
systems,
such
electrocatalysis,
pyrocatalysis
sonocatalysis.
This
work
provides
insights
geochemical
cycle
offers
new
route
via
integrated
energy
development.
