Amended compacted clay liner for containment of copper-laden leachate in tailings reservoirs
Geomechanics and Geophysics for Geo-Energy and Geo-Resources,
Год журнала:
2025,
Номер
11(1)
Опубликована: Март 3, 2025
Язык: Английский
Utilization of Algal Biochar for Biopassivation of Copper Sulfide Tailings to Reduce Acid Mine Drainage
Zhiyuan Peng,
Can Liu,
Yuhang Fu
и другие.
Biology,
Год журнала:
2025,
Номер
14(3), С. 300 - 300
Опубликована: Март 16, 2025
Acid
mine
drainage
(AMD)
has
serious
impacts
on
the
environment.
To
inhibit
generation
of
AMD
from
copper
sulfide
tailings
at
source,
in
this
paper,
a
strategy
is
developed
for
promoting
biopassivation
using
algal
biochar,
and
effects
pyrolysis
temperature
concentration
biochar
passivation
efficiency
stability
are
investigated.
The
results
reveal
that
introduction
during
significantly
enhances
effect
tested
Acidithiobacillus
ferrooxidans
strain
greatly
stabilizes
formed
layer.
Algal
prepared
with
300
°C
applied
6
g/L
not
only
optimizes
but
also
improves
complex
mechanisms
system
include
regulating
pH
oxidation‒reduction
potential
reaction
system,
effectively
adsorbing
microbial
cells,
efficiently
aggregating
metal
cations
solution,
stimulating
synthesis
extracellular
polymeric
substances,
accelerating
electron
transfer.
This
research
offers
novel
method
benign
treatment
resource
utilization
algae.
Язык: Английский
Flotation Tailings from Cu-Au Mining (Bor, Serbia) as a Potential Secondary Raw Material for Valuable Metals Recovery
Minerals,
Год журнала:
2024,
Номер
14(9), С. 905 - 905
Опубликована: Сен. 3, 2024
The
increased
exploitation
of
ores
leads
to
the
generation
mining
waste,
which
has
a
negative
impact
on
environment
and
human
health.
For
this
reason,
it
is
necessary
take
care
in
an
adequate
way
by
applying
some
possible
treatments.
In
addition
protecting
appropriate
treatment,
there
also
possibility
making
profit
valorizing
useful
elements
from
waste.
order
choose
most
perform
characterization
This
paper
contains
detailed
flotation
tailings
deposited
at
Old
Flotation
Tailings
eastern
Serbia,
originating
copper
ore
processing.
Characterization
includes
physico-chemical
analysis,
polarizing
microscope
X-ray
Diffraction
analysis
(XRD)
Scanning
Electron
Microscopy
with
Energy
Dispersive
Spectroscopy
(SEM-EDS)
analysis.
obtained
results
indicate
that
investigated
can
be
used
as
secondary
raw
material
for
metal
recovery,
case
primarily
(whose
content
about
0.24%),
gold
(with
0.43
ppm)
silver
1.7
ppm).
Considering
valuable
quite
low,
suggested
apply
hydrometallurgical
treatment
their
recovery.
Язык: Английский
The effect of iron complexes−nitrilotriacetate in the bio−oxidation of sulphide minerals: toxic metal(loid)s release and surface microstructure
Journal of Hazardous Materials Advances,
Год журнала:
2024,
Номер
unknown, С. 100557 - 100557
Опубликована: Ноя. 1, 2024
Язык: Английский