Eng—Advances in Engineering,
Journal Year:
2023,
Volume and Issue:
4(4), P. 2812 - 2825
Published: Nov. 14, 2023
Clay
minerals
are
widely
used
to
treat
groundwater
and
surface
water
containing
radionuclides.
In
our
study,
the
method
of
mechanochemical
activation
for
increasing
sorption
capacity
natural
clay
mineral
montmorillonite
was
used.
By
adjusting
grinding
time,
parameters
mechanochemically
activated
were
determined.
X-ray
diffraction
method,
scanning
electron
microscopy,
determination
specific
by
low-temperature
adsorption–desorption
nitrogen
characterize
mechanochemical-activated
montmorillonites
It
established
that
maximal
uranium,
strontium,
cesium
is
found
after
treatment
2
h.
shown
filling
with
ions
different
natures
occurs
in
various
ways
during
times
treatment.
The
appropriateness
Langmuir
Freundlich
models
on
its
established.
effect
organic
substances—humic
acids—on
efficiency
purification
from
uranium
mechanoactivated
studied.
obtained
sorbents
can
be
effectively
removal
trace
amounts
radionuclides
chemical
(uranium,
cesium,
strontium)
polluted
ground
waters.
Biochar,
Journal Year:
2024,
Volume and Issue:
6(1)
Published: March 1, 2024
Abstract
Soil
contamination
by
uranium
presents
a
burgeoning
global
environmental
concern,
exerting
detrimental
effects
on
both
agricultural
production
and
soil
health.
Biochar,
carbonaceous
material
derived
from
biomass
pyrolysis,
exhibits
considerable
potential
for
remediating
uranium-contaminated
soils.
However,
comprehensive
review
of
the
biochar
fate
accumulation
in
soil–plant
systems
remains
conspicuously
absent.
In
this
paper,
sources
are
reviewed,
impact
immobilization
detoxification
is
analyzed.
We
reviewed
status
soils
globally
found
that
mining
activities
currently
main
sources.
Further
meta-analysis
revealed
addition
significantly
reduced
bioavailability
shoot
accumulation,
their
effect
value
58.9%
(40.8–76.8%)
39.7%
(15.7–63.8%),
respectively.
Additionally,
enhances
microenvironment,
providing
favourable
conditions
promoting
plant
growth
reducing
mobility.
focused
mechanisms
governing
interaction
between
uranium,
emphasising
roles
played
surface
complexation,
reduction,
ion
exchange,
physical
adsorption.
The
modification
intensifying
these
can
promote
immobilisation
Finally,
alleviates
oxidative
stress
reduces
tissues,
thereby
mitigating
adverse
development.
Overall,
our
highlights
capacity
to
remediate
through
diverse
mechanisms,
valuable
insights
sustainable
remediation.
Highlights
Biochar
mobility
variety
including
limits
its
plants.
Modified
has
been
shown
enhance
effectiveness
immobilising
uranium.
application
not
only
promotes
remediation
but
also
improves
quality.
Graphical
ACS ES&T Water,
Journal Year:
2024,
Volume and Issue:
4(2), P. 325 - 345
Published: Jan. 5, 2024
The
sustainable
energy
supply
to
the
global
community
remains
a
great
challenge
due
mounting
incessant
demand
and
environmental
concerns
associated
with
fossil
fuel-based
energy.
As
per
International
Atomic
Energy
Agency
(IAEA),
nuclear
power
will
be
only
reliable
source
in
future,
there
high
for
uranium
(U).
Therefore,
exploitation
of
U
from
seawater
is
essential
thousands
years
globally.
Herein,
we
discuss
some
key
developments
on
design
application
potential
sorbents
effective
extraction
(UES)
under
different
experimental
conditions.
Specifically,
focus
synthesis,
characterization,
a)
organic
(metal–organic
frameworks
(MOFs),
covalent
(COFs),
membranes,
hydrogels)
b)
inorganic
substrate
(graphene
silica)
based
composite
sorbents.
Later,
selected
studies
encompassing
mechanistic
understating
efficient
UES
using
through
various
analytical
theoretical/computational
approaches.
Finally,
present
future
challenges
that
need
addressed
compatible
exceptional
properties
UES.
We
believe
this
paper
can
expand
our
understanding
suitable
selective
