Electrochimica Acta,
Journal Year:
2023,
Volume and Issue:
445, P. 142051 - 142051
Published: Feb. 13, 2023
Electrokinetic-assisted
phytoextraction
(EKPH)
involves
the
use
of
electric
current
to
improve
mobilization
metals
in
soils
and,
therefore,
their
removal
efficiency.
It
emerges
as
an
interesting
sustainable
technology
for
rehabilitation
abandoned
mining
areas.
The
goal
this
research
was
conduct
a
comprehensive
study
technique
applied
real
mine
tailings
from
Pb/Zn
by
using
ryegrass
plant
species
and
two
types
current:
direct
with
polarity
reversal
(DC-PR)
alternate
(AC).
EKPH
tests
were
conducted
specially
designed
plastic
containers
that
allowed
recording
main
parameters
electrokinetic
process
sampling
different
matrices
studied,
i.e.
water,
soil
plants.
This
intensive
program
detailed
monitoring
metal
processes
treatments
applied.
changes
caused
mobility
physicochemical
due
application
reflected
greater
extent
water
samples
than
solid
ones.
Accumulation
Pb,
Zn,
Cd
Cu
tissues
increased
significantly
41%,
17%,
34%
32%
when
applying
1
V
cm−1
AC
current,
respect
results
without
current.
DC-PR
did
not
lead,
general,
statistically
significant
increases
uptake.
These
findings
adequately
correlated
found
concentrations
pore
lesser
extent,
those
observed
BCR
sequential
extraction
samples.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(2), P. e24293 - e24293
Published: Jan. 1, 2024
Globally
million
hectares
of
land
annually
is
getting
contaminated
by
heavy
metalloids
like
As,
Cd,
Cr,
Hg,
Pb,
Co,
Cu,
Ni,
Zn,
and
Se,
with
current
concentrations
in
soil
above
geo-baseline
or
regulatory
standards.
The
metals
are
highly
toxic,
mobile,
persistent
hence
require
immediate
effective
mitigation.
There
many
available
remediation
techniques
surface
capping,
encapsulation,
landfilling,
flushing,
washing,
electrokinetic
extraction,
stabilization,
solidification,
vitrification,
phytoremediation,
bioremediation
which
have
been
evolved
to
clean
up
metal-contaminated
sites.
Nevertheless,
all
the
technologies
some
applicability
limitations
making
initiative
unsustainable.
Among
technologies,
(EKR)
has
comparatively
recognized
mitigate
sites
via
both
in-situ
ex-situ
approaches
due
its
efficiency,
suitability
for
use
low
permeability
soil,
requirement
potential
gradient.
work
critically
analyzes
EKR
concerning
techno,
economic,
sustainability
aspect
evaluating
application
on
various
substrates
environmental
conditions.
contamination
status
India
presented
metal
from
evaluated.
present
summaries
a
comprehensive
exhaustive
review
technology
proving
effectiveness
country
where
huge
amount
waste
generated
could
not
be
treated
lack
infrastructure,
technology,
economic
constraints.
Journal of Hazardous Materials Advances,
Journal Year:
2022,
Volume and Issue:
8, P. 100157 - 100157
Published: Sept. 1, 2022
Soil
arsenic
pollution
issues
have
received
increasing
attention
over
the
past
decades.
This
review
focuses
on
recent
advances
in
remediation
practices
of
arsenic-contaminated
soils
from
7400
articles.
It
critically
evaluates
significant
literatures
various
methods
and
proposes
research
trends
hotspots
through
bibliometric
analysis.
Soils
or
other
sites
technology
could
be
divided
into
two
categories:
ones
having
situ
subjected
to
ex
treatments.
Among
them,
this
classifies
extraction/migration,
immobilization/stabilization,
transformation/degradation
perspective
goals.
From
treatment
pathways,
technologies
for
are
soil
washing
solidification/stabilization.
Various
present
different
levels
adaptability.
By
introducing
six
tolerance
indices,
adaptability
all
contamination
level,
costs,
time,
efficiency,
existence
co-pollutants,
secondary
risks
is
proposed.
Solidification/stabilization
considered
as
most
efficient
cost
effective
phytoextraction
technique.
The
hotspot
trend
field
application
biochar-related
amendments
paddy
soils.
Waste Management,
Journal Year:
2021,
Volume and Issue:
138, P. 30 - 40
Published: Nov. 27, 2021
Large
quantities
of
sediment
must
be
dredged
regularly
to
enable
marine
transport
and
trade.
The
sediments
are
often
polluted,
with
e.g.
metals,
which
limits
the
management
options.
aim
this
study
has
been
assess
costs
environmental
impacts
(impact
on
climate,
organisms,
etc.)
different
options
for
polluted
sediment,
by
combining
life-cycle
assessment
(LCA)
climate
impact,
scoring
other
aspects
a
cost
evaluation.
This
approach
used
both
traditional
new
alternatives
real
port
case.
studied
include
landfilling,
deep-sea
disposal,
construction
area
using
stabilization
solidification
(S/S)
method,
combination
aforementioned
methods
innovative
option
metal
recovery
through
electrolysis.
LCA
showed
that
disposal
had
lowest
impact.
result
varied
depending
pollution
level
time
perspective
(short
or
long-term).
Using
highest
although
were
comparably
low.
Electrolysis
was
found
suitable
highly
sediments,
as
it
left
cleaner
enabled
precious
however
high.
results
highlight
complexity
comparing
benefits
integrated
assessments
provide
clarity,
evaluate
synergetic
counteracting
effects
associated
investigated
scenarios
may
aid
early-stage
decision
making.
Heliyon,
Journal Year:
2023,
Volume and Issue:
9(11), P. e22001 - e22001
Published: Nov. 1, 2023
The
utilization
of
dye
adsorption
through
metal-organic
frameworks
represents
an
eco-friendly
and
highly
effective
approach
in
real
water
treatment.
Here,
ultrasound
assisted
was
employed
for
the
remediation
three
dyes
including
methylene
blue
(MB),
malachite
green
(MG),
congo
red
(CR)
from
samples
using
zirconium(IV)-based
adsorbent
(UiO-66-NH2).
characterized
structural,
elemental,
thermal
morphological
features
XRD,
XPS,
FTIR,
thermogravimetric
analysis,
SEM,
BET
,
Raman
spectroscopy.
capacity
to
uptake
pollutants
aqueous
solutions
investigated
under
different
experimental
conditions
such
as
amount
UiO-66-NH2
at
various
contact
durations,
temperatures,
pH
levels,
initial
loading
amounts.
maximum
removal
optimal
found
be
938,
587,
623
mg
g-1
towardMB,
MG,
CR,
respectively.
studied
on
surface
a
monolayer
endothermic
process.
probable
mechanism
chemisorption
follows
pseudo-second-order
kinetics.
From
findings
regeneration
studies,
it
deduced
that
can
effectively
used
consecutive
cycles
without
any
momentous
loss
its
efficacy.
Furthermore,
with
ultrasound-assisted
might
help
safeguard
environment
develop
new
strategies
sustainability
natural
resources.
