From classic to cutting-edge solutions: A comprehensive review of materials and methods for heavy metal removal from water environments
Desalination and Water Treatment,
Journal Year:
2024,
Volume and Issue:
319, P. 100446 - 100446
Published: May 31, 2024
Waterborne
heavy
metals
pose
significant
threats
to
both
the
environment
and
public
health,
causing
neurological
damage,
developmental
disorders,
organ
cancer.
It
is
essential
address
contamination
of
various
water
bodies
by
these
hazardous
substances
due
their
persistent
nature
lack
biodegradability.
This
review
thoroughly
explores
traditional
modern
strategies
utilized
remedy
sources
contaminated
with
evaluates
effectiveness
potential
scalability
each
method.
A
literature
survey
reveals
several
effective
for
removing
from
water:
adsorption,
flotation,
ion
exchange,
chemical
precipitation,
membrane-based
filtration,
coagulation,
flocculation,
phytoremediation,
electrochemical
methods.
In
our
examination,
we
discussed
agents/adsorbents
used,
efficiency
removal
technique,
operating
conditions,
intrinsic
advantages
disadvantages
approach.
Summarizing
key
findings,
noted
a
focus
on
adsorption
techniques;
however,
challenges
include
selectively
diverse
ions,
prolonged
retention
times,
cycling
stability.
While
membrane
methods
are
practical,
issues
like
large-volume
sludge
formation
exist.
Although
electrical-based
appear
promising,
solutions
needed
industrial-scale
separation
as
well.
Prioritizing
real
wastewater
samples
in
studies
crucial.
Future
research
should
emphasize
eco-friendly,
cost-effective
Language: Английский
Development of a novel low-cost adsorbent Chitosan@EDTA@Cellulose composite to effectively remove Methyl Orange dye from wastewater: Experimental and theoretical investigation
Soukaina El Bourachdi,
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Abdelhay El Amri,
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Ali Raza Ayub
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et al.
International Journal of Biological Macromolecules,
Journal Year:
2025,
Volume and Issue:
unknown, P. 141030 - 141030
Published: Feb. 1, 2025
Language: Английский
Heavy Metal Removal from Water Using Graphene Oxide in Magnetic-Assisted Adsorption Systems: Characterization, Adsorption Properties, and Modelling
A. P. Melchor-Durán,
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M. R. Moreno-Virgen,
No information about this author
Adrián Bonilla‐Petriciolet
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et al.
Separations,
Journal Year:
2024,
Volume and Issue:
11(10), P. 294 - 294
Published: Oct. 12, 2024
This
study
investigated
the
adsorption
properties
of
graphene
oxide
in
a
magnetic-assisted
adsorber
for
depollution
water
containing
heavy
metals.
Two
samples
with
different
surface
chemistry
were
synthetized
and
assessed
using
systems.
One
sample
exhibited
dual
magnetic
behavior
presenting
both
diamagnetic
ferromagnetic
phases,
while
other
was
diamagnetic.
The
these
removing
Pb2+
Cu2+
tested
compared
without
field
exposure.
results
showed
that
removal
increased
configuration,
less
sensitive
to
application
field.
A
monolayer
model
used
simulate
all
metal
isotherms
quantified
experimentally.
It
concluded
mechanism
designed
remove
mainly
multi-ionic
where
two
metallic
cations
could
interact
one
active
site
(i.e.,
oxygenated
functional
groups)
from
adsorbent
surface.
functionalities
played
relevant
role
determining
impact
exposure
on
efficacy.
Magnetic-assisted
is
an
interesting
alternative
reduce
concentration
polluted
effluents,
it
can
also
be
applied
improve
performance
adsorbents
limited
groups,
which
usually
show
poor
challenging
pollutants
such
as
toxic
Language: Английский
Research on the Recovery Technology and Application of Copper Resources from Mine Wastewater at High Altitudes
WU Jian-hui,
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Xu Yan,
No information about this author
Chengyun Zhou
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et al.
Water,
Journal Year:
2025,
Volume and Issue:
17(6), P. 856 - 856
Published: March 17, 2025
In
this
study,
we
studied
the
process
of
recovering
copper
from
mine-leached
water
at
an
altitude
4500
m.
The
was
ion
exchange–esolution–nanofiltration–separation–cyclone
electrodeposition.
As
a
result,
high-purity
cathodes
were
produced.
study
demonstrated
that
maximum
adsorption
capacity
exchange
resin
D402
for
Cu2+
reached
174.6
g/L
and
efficiency
eluent
found
to
be
97.2%
94.2%,
respectively.
results
Fourier
Transform
infrared
spectroscopy
(FTIR)
analysis
indicated
contains
-OH
-NH2.
lone
pair
electrons
on
O
N
atoms
can
form
coordination
bonds
with
ions
stable
complexes.
X-ray
photoelectron
(XPS)
absorbed
into
resin.
recovery
throughout
entire
reaches
95.1%,
purity
resulting
cathode
99.997%.
This
method
is
distinguished
by
straightforward
process,
minimal
environmental
impact,
optimal
operating
conditions,
high
efficiency,
grade.
Language: Английский
“Chacco” clay from the Peruvian highlands as a potential adsorbent of heavy metals in water
Energy Nexus,
Journal Year:
2024,
Volume and Issue:
unknown, P. 100330 - 100330
Published: Oct. 1, 2024
Language: Английский
Research on Pb2+ desorption and Pb recovery from halloysite adsorbent materials by electrochemical precipitation method
Vietnam Journal of Catalysis and Adsorption,
Journal Year:
2024,
Volume and Issue:
13(1), P. 123 - 128
Published: March 30, 2024
Research
results
on
the
adsorption
process
of
halloysite
material
in
Thach
Khoan,
Phu
Tho
area
for
Pb2+
showed
that
this
has
good
ability
with
an
efficiency
90.75%
under
optimal
conditions.
The
desorption
from
Pb-adsorbed
and
also
recovery
metallic
Pb
by
electrochemical
precipitation
method
been
studied.
electrolysis
was
carried
out
constant
current
mode
0.01M
HCl
electrolyte
system
including
a
working
electrode
as
Au
(geometric
1
cm2),
reference
silver/silver
chloride
electrode,
counter
Pt
grid.
effects
intensity,
mass
adsorbed
material,
time
were
evaluated.
obtained
show
that,
conditions:
density
5
mA/cm2,
0.3
g,
h,
temperature
25oC,
reached
93.67%.
result
shown
is
effective
desorbing
recovering
Pb.
Language: Английский