ChemEngineering,
Год журнала:
2024,
Номер
8(4), С. 72 - 72
Опубликована: Июль 11, 2024
One
interesting
method
for
environmental
remediation
is
the
use
of
ZnO/ZrO2
composites
in
photocatalytic
degradation
lead
(Pb)
wastewater.
Several
studies
have
investigated
different
types
removal
heavy
metals
from
However,
efficiency
these
removing
remains
debatable.
Hence,
this
study
potential
using
a
composite
Pb
Response
surface
methodology
(RSM)
was
utilized
work
to
maximize
over
simulated
Based
on
central
design
(CCD),
experimental
included
adjusting
critical
process
parameters
such
as
catalyst
dosage,
initial
concentration,
and
pH.
The
synthesized
physical
mixing
technique,
its
physicochemical
properties
were
studied
by
field
emission
scanning
electron
microscopy
(FESEM),
energy
dispersive
X-ray
spectroscopy
(EDS),
Fourier
transform
infra-red
(FTIR),
diffraction
(XRD).
Under
visible
light
irradiation,
tests
carried
out
batch
reactor.
findings
showed
that
dose
100
mg/L,
pH
10,
an
content
15
ppm
optimal
conditions
maximal
(above
91.2%).
actual
obtained
runs
highly
correlated
with
predicted
RSM
quadratic
model.
usefulness
demonstrated
work,
which
also
emphasizes
significance
parameter
optimization
improved
pollutant
degradation.
models
been
proposed
offer
significant
perspectives
development
scalability
effective
systems
intended
remove
Water,
Год журнала:
2024,
Номер
16(17), С. 2417 - 2417
Опубликована: Авг. 27, 2024
Assessing
groundwater
quality
is
essential
for
ensuring
the
sustainability
of
agriculture
and
ecosystems.
This
study
evaluates
contamination
by
heavy
metals
(HMs)
using
GIS
approaches,
multivariate
statistical
analysis
(MSA),
pollution
indices
(heavy
metal
index
(HPI),
(MI),
degree
(Cd),
ecological
risk
(ERI),
(PI)),
human
health
assessment
(HHRA).
The
results
revealed
significant
variations
in
concentrations
across
area,
with
highest
found
southern
southeastern
parts,
characterized
intense
agricultural
activities
uncontrolled
landfills.
Statistical
analyses
indicated
both
natural
anthropogenic
sources
contamination.
Pollution
showed
medium
to
high
water
levels,
HPI
values
ranging
from
20.23
128.60,
MI
3.34
12.17,
Cd
2.90
11.73,
indicating
varying
degrees
ERI
suggested
a
low
all
samples.
However,
assessments
highlighted
non-carcinogenic
carcinogenic
risks,
particularly
children,
TCR
some
like
Ni
Cr
exceeding
safe
limits,
potential
hazards.
findings
provide
valuable
framework
policymakers
develop
targeted
strategies
mitigating
sustainable
management.
F1000Research,
Год журнала:
2025,
Номер
14, С. 134 - 134
Опубликована: Янв. 27, 2025
Heavy
metal
contamination
has
gradually
become
a
very
much
important
significant
global
issue
due
to
its
continual
existence
in
the
environment
and
bioaccumulation
ecosystems,
posing
deleterious
risks
human
health.
This
review
aims
investigate
sources,
pathways,
toxicological
impacts
of
heavy
metals
such
as
cadmium,
lead,
mercury,
arsenic,
elucidating
their
health
consequences
plausible
mitigation
strategies.
Furthermore,
explores
dual
origins
contamination;
natural
geological
processes
anthropogenic
activities
industrial
emissions,
mining,
agricultural
practices.
These
sip
into
soil,
water,
food
chains,
leading
bioaccumulation,
bio-magnification
causing
risks,
including
cardiovascular
diseases,
neurological
disorders,
reproductive
toxicity.
Additionally,
addition
indigenous
case
studies
from
Nigeria,
lead
poisoning
Zamfara
State
Great
Kwa
River
Cross
Rivers
underscores
disproportionate
impact
pollution
developing
nations.
reveal
socio-economic
environmental
dimensions
issue,
providing
contextual
understanding
region-specific
vulnerabilities
outcomes.
To
address
these
problems,
evaluates
already
existing
strategies,
chelation
therapy
phytoremediation,
while
proposing
sustainable,
cost-effective
solutions
for
reducing
exposure
mitigating
impacts.
It
emphasizes
importance
integrative
approaches
involving
policy,
community
engagement,
technological
innovations
fight
effectively.
In
conclusion,
this
seminar
contributes
toxicity,
giving
showcasing
insights
sources
implications
contamination.
By
integrating
theoretical
perspectives
with
practical
solutions,
provides
robust
framework
informing
policy
makers
advancing
sustainable
management
practices.
