Molecules,
Journal Year:
2024,
Volume and Issue:
29(23), P. 5589 - 5589
Published: Nov. 26, 2024
The
development
of
widely
sourced
and
efficient
adsorbents
is
crucial
for
the
adsorption
lead
from
wastewater.
A
novel
adsorbent,
N-doped
weathered
coal
(NWC),
was
prepared
in
this
study
using
as
precursor
triethylenetetramine
(TETA)
N-source.
performance
behavior
Pb(II)
on
NWC
were
investigated
batch
experiments.
results
demonstrated
that
has
an
towards
Pb(II),
with
a
maximum
monolayer
capacity
216.32
mg
g−1
(25
°C).
process
spontaneous
endothermic,
importance
chemisorption
observed.
mechanisms
also
analyzed
based
its
physicochemical
structure
before
after
desorption
N
O
functional
groups,
acting
electron
donors,
promoted
coordination
making
complexation
dominant
mechanism.
Its
contribution
to
mechanism
could
reach
44.81%.
promising
material
both
wastewater
treatment
resource
utilization
coal.
Biological Trace Element Research,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 17, 2025
Abstract
Fish
intake
may
constitute
a
significant
route
by
which
humans
are
exposed
to
metals,
especially
people
who
depend
on
fish
as
source
of
protein
Alexandrians.
Therefore,
this
study
aimed
investigate
the
metal
contents
in
muscles
eight
commonly
consumed
freshwater
(Tilapia,
Catfish,
and
Common
Carp)
marine
species
(Emperors,
Groupers,
Mackerels,
Silver
Pomfret,
Roving
Groupers)
collected
from
local
markets
located
Alexandria
City
for
1-year
calendar
year,
2022.
Seasonal
variations
levels
tested
metals
species,
with
differences
between
were
recorded.
Also,
Cu,
Zn,
Fe,
Co,
Cd
all
during
experiment
did
not
exceed
guideline
limits,
while
Ni,
Cr,
Pb
October–May,
June–September,
February–May
2022,
respectively,
exceeded
permissible
limits
settled
FAO
WHO.
Additionally,
Mackerels
Groupers
had
high-level
Mn
that
European
Commission.
The
accumulation
these
different
relative
variation
accumulation,
Cu
was
most
predominant
element
Tilapia,
Zn
Fe
Carp,
Emperors,
Co
Tilapia.
Consumption
high
Metal
Pollution
Index
(MPI)
value
pose
potential
public
health
risk.
On
meantime,
calculated
values
estimated
daily
intakes
(EDI),
hazard
index
(HI),
target
quotient
(THQ)
indicated
no
risk
Alexandrians
via
consumption
because
they
World
Health
Organization’s
acceptable
intake.
Biosensors,
Journal Year:
2025,
Volume and Issue:
15(6), P. 341 - 341
Published: May 29, 2025
Heavy
metal
contamination
in
livestock
and
poultry
farm
wastewater
poses
significant
risks
to
both
the
environment
human
health,
so
it
is
critical
accurately
rapidly
quantify
heavy
ion
concentrations
water.
This
research
develops
a
bioelectric
active
hydrogel
sensor
for
detecting
ions
wastewater.
The
integrates
microbial
surface
display
technology
with
graphene
hydrogel,
displaying
glucose
oxidase
(GOx)
on
of
yeast
cells,
covalently
incorporating
into
through
bio-reduction
activity
metal-reducing
bacteria,
enhancing
its
electrochemical
performance.
demonstrates
excellent
sensitivity
stability
Cu2+,
detection
limit
Cu2+
17.0
µM.
also
applicable
Zn2+
When
various
coexist
solution,
they
exert
more
pronounced
inhibitory
effect
enzyme
activity.
Consequently,
can
be
employed
assess
overall
content
water
samples.
In
real
wastewater,
recovery
rate
electrode
ranged
from
88%
106.5%,
indicating
that
holds
potential
application
actual
sample
analysis.
