RSC Advances,
Journal Year:
2023,
Volume and Issue:
13(26), P. 17595 - 17610
Published: Jan. 1, 2023
Heavy
metal
contamination
of
water
sources
has
emerged
as
a
major
global
environmental
concern,
threatening
both
aquatic
ecosystems
and
human
health.
pollution
in
the
environment
is
on
rise
due
to
industrialization,
climate
change,
urbanization.
Sources
include
mining
waste,
landfill
leachates,
municipal
industrial
wastewater,
urban
runoff,
natural
phenomena
such
volcanic
eruptions,
weathering,
rock
abrasion.
ions
are
toxic,
potentially
carcinogenic,
can
bioaccumulate
biological
systems.
metals
cause
harm
various
organs,
including
neurological
system,
liver,
lungs,
kidneys,
stomach,
skin,
reproductive
systems,
even
at
low
exposure
levels.
Efforts
find
efficient
methods
remove
heavy
from
wastewater
have
increased
recent
years.
Although
some
approaches
effectively
contaminants,
their
high
preparation
usage
costs
may
limit
practical
applications.
Many
review
articles
been
published
toxicity
treatment
for
removing
wastewater.
This
focuses
main
pollution,
chemical
transformation,
toxicological
impacts
environment,
harmful
effects
ecosystem.
It
also
examines
advances
cost-effective
techniques
physicochemical
adsorption
using
biochar
zeolite
ion
exchangers,
well
decomposition
complexes
through
advanced
oxidation
processes
(AOPs).
Finally,
advantages,
applications,
future
potential
these
discussed,
along
with
any
challenges
limitations
that
must
be
considered.
Environmental Technology & Innovation,
Journal Year:
2021,
Volume and Issue:
25, P. 102114 - 102114
Published: Nov. 24, 2021
Arsenic
is
a
highly
toxic
metalloid
that
extensively
distributed
in
soils
and
water
bodies,
resulting
variety
of
toxicity
mechanisms
harmful
effects
on
humans
environmental
health.
This
paper
comprehensively
reviews
the
technological
development
arsenic
(As)
removal
from
wastewater
contaminated
soil,
provides
insights
into
challenges
effective
compartments.
The
efficiency
available
technologies
also
discussed
terms
their
principle
operation,
efficiency,
advantages,
shortcomings.
Many
existing
are
not
found
economically
feasible
for
regions
interest
or
applicable
at
community
level.
Some
techniques
often
responsible
producing
by-products.
Overall,
adsorption
technique
demonstrated
high
almost
100%
maximum
95%
removing
respectively.
Novel
methods
such
as
application
nanotechnology
polymeric
ligand
exchangers
have
been
gaining
traction
but
seem
to
possess
limitations
similar
conventional
non-conventional
techniques.
Applied Sciences,
Journal Year:
2022,
Volume and Issue:
12(12), P. 6184 - 6184
Published: June 17, 2022
Arsenic
intoxication
represents
a
worldwide
health
problem
and
occurs
mainly
through
drinking
water.
Arsenic,
metalloid
naturally
occurring
element,
is
one
of
the
most
abundant
elements
in
earth’s
crust,
whose
toxicity
depends
on
reduction
state.
The
trivalent
arsenicals
are
more
toxic
than
pentavalent
arsenicals.
In
state,
inorganic
organic
arsenic
may
react
with
thiol
groups
proteins
inhibiting
their
activity,
whereas
state
replace
phosphate
ions
several
reactions.
induces
various
epigenetic
changes
mammalian
cells,
both
vivo
vitro,
often
leading
to
development
types
cancers,
including
skin,
lung,
liver,
urinary
tract,
prostate,
hematopoietic
cancers.
Potential
mechanisms
cancer
include
genotoxicity,
altered
DNA
methylation
cell
proliferation,
co-carcinogenesis,
tumor
promotion,
oxidative
stress.
On
other
hand,
FDA-certified
drug
trioxide
provides
solutions
for
diseases,
Detoxification
from
includes
chelation
therapy.
Recently,
investigations
capability
some
plants,
such
as
Eucalyptus
camadulensis
L.,
Terminalia
arjuna
L.
Salix
tetrasperma
remove
polluted
soil
water
have
been
studied.
Moreover,
nanophytoremediation
green
technology
nanoscale
materials
used
absorption
degradation
pollutants,
compounds.
This
brief
review
an
overview
uses,
toxicity,
epigenetics,
detoxification
therapies.
Environmental Science & Technology,
Journal Year:
2022,
Volume and Issue:
56(14), P. 10412 - 10422
Published: July 6, 2022
Acid
recycling
and
arsenic
recovery
from
strongly
acidic
wastewater
are
goals
of
the
metallurgical
industry
to
reduce
carbon
emissions.
In
this
study,
was
recovered
using
a
hydroxyl-enriched
CeO2
adsorbent,
adsorption
mechanism
in
solution
investigated.
The
capacities
88.59
mg/g
for
As(III)
126.211
As(V)
at
pH
1.0
highest
reported
values
date.
It
is
revealed
that
hydroxyl
groups
on
surface
can
buffer
hydrogen
ions,
isoelectric
point
material
be
reduced
1.52.
binding
energy
-1.25
eV
-2.24
without
groups.
Additionally,
protonated
oxidation
promote
by
forming
new
active
sites
solution.
Nearly
98.11%
(initial
concentration
886.8
mg/L)
removed
within
24
h
adjustment,
indicating
feasibility
recovering
acid.
This
work
investigated
proton-enhanced
wastewater.
