Water,
Journal Year:
2024,
Volume and Issue:
17(1), P. 40 - 40
Published: Dec. 27, 2024
Cement
kiln
dust
(CKD),
a
by-product
of
cement
manufacturing,
has
been
largely
underutilized
despite
its
potential
as
an
eco-friendly
adsorbent
for
wastewater
treatment.
This
study
addresses
the
knowledge
gap
regarding
CKD’s
effectiveness
in
removing
heavy
metals
from
residuals.
A
comprehensive
experimental
program
was
conducted
to
optimize
key
parameters
such
pH
(6–9),
contact
time,
sorbent
dosage,
and
initial
metal
concentrations
using
batch
equilibrium
technique.
The
results
demonstrated
that
CKD
can
effectively
remove
metals,
achieving
removal
efficiencies
98%
Pb,
94%
Zn,
92%
Cu,
90%
Cd
within
just
4
h
Importantly,
not
only
provided
high
adsorption
efficiency
but
also
resulted
significant
reduction
formation
hazardous
solid
sludge,
major
concern
traditional
treatment
methods.
data
closely
matched
Langmuir
isotherm
model,
further
validating
sustainable,
cost-effective
solution
reducing
contamination
while
minimizing
environmental
impact.
Advances in Colloid and Interface Science,
Journal Year:
2024,
Volume and Issue:
335, P. 103338 - 103338
Published: Nov. 14, 2024
Efficient
removal
of
heavy
metals
and
other
toxic
metal
pollutants
from
wastewater
is
essential
to
protect
human
health
the
surrounding
vulnerable
ecosystems.
Therefore,
significant
efforts
have
been
invested
in
developing
practical
sustainable
tools
address
this
issue,
including
high-performance
adsorbents.
In
respect,
within
last
few
years,
graphene-based
aerogels/xerogels/cryogels
(GBAs)
emerged
drawn
attention
as
excellent
materials
for
removing
recovering
harmful
valuable
different
aqueous
media.
Such
an
upward
trend
mainly
due
features
aerogel
combined
with
properties
graphene
derivatives
aerogel's
network,
GBAs'
unique
three-dimensional
(3D)
porous
structure,
high
porosity,
low
density,
large
specific
surface
area,
exceptional
electron
mobility,
adjustable
rich
chemistry,
remarkable
mechanical
features,
tremendous
stability.
This
review
offers
a
comprehensive
analysis
fundamental
aspects
phenomena
related
application
GBAs
removal.
Herein,
we
cover
all
types
(bottom-up)
synthesized
GBAs,
true
microporous
aerogels
well
3D
open-cell
interconnected
mesoporous
macroporous
aerogels,
foams,
sponges.
Indeed,
provide
insights
into
understanding
suitability
such
important
by
revealing
mechanisms
involved
factors
inducing
controlling
highly
selective
behavior
these
distinctive
Besides
conventional
adsorptive
pathways,
critically
analyzed
ability
electrochemically
capture
(i.e.,
electrosorption)
their
efficiency
detoxification
through
reductive
adsorption-reduction-readsorption).
We
also
covered
reusability
aspect
(GAs)-based
adsorbents,
which
strongly
linked
outstanding
stability
efficient
desorption
captured
metals.
Furthermore,
view
numerous
environmental
benefits,
development
magnetically
recoverable
GAs
highlighted.
Moreover,
shed
light
on
potential
scalable
implementation
evaluating
performance
continuous
processes
while
highlighting
versatility
demonstrated
remove
multiple
contaminants
along
Finally,
provides
readers
accessible
overview
critical
discussion
major
recent
achievements
regarding
applications
GAs-based
adsorbents
ions
Along
our
recommendations
suggestions
future
work
new
research
directions
opportunities,
aims
serve
resource
researchers
field
treatment
inspire
further
progress
towards
next-generation
expanding
application.
Inorganics,
Journal Year:
2023,
Volume and Issue:
11(8), P. 339 - 339
Published: Aug. 17, 2023
An
excessive
accumulation
of
crystal
violet
dye
in
the
human
body
results
an
accelerated
heart
rate,
tetraplegia,
eye
irritation,
and
long-term
damage
to
transparent
mucous
membrane
that
protects
eyeballs.
Accordingly,
this
paper,
sodium
manganese
silicate/sodium
silicate
hydroxide
hydrate
was
easily
fabricated
as
a
novel
type
nanostructures
for
successful
disposal
from
aqueous
solutions.
The
formed
after
hydrothermal
treatment
gel
produced
interaction
Mn(II)
ions
with
Si(IV)
at
180
°C
6,
12,
18,
24
h
were
abbreviated
MS1,
MS2,
MS3,
MS4,
respectively.
XRD
showed
average
crystallite
size
MS4
samples
is
8.38,
7.43,
4.25,
8.76
nm,
BET
surface
area
41.58,
46.15,
58.25,
39.69
m2/g,
consist
spherical
irregular
shapes
grain
sizes
157.22,
88.06,
43.75,
107.08
best
adsorption
conditions
employing
products
achieved
pH
=
8,
contact
time
140
min,
solution
temperature
298
kelvin.
linear
pseudo-2nd-order
model
well
Langmuir
isotherm
better
describe
using
adsorbents.
studied
thermodynamic
parameters
indicated
adsorbents
spontaneous,
exothermic,
chemical.
maximum
capacities
towards
are
342.47,
362.32,
411.52,
310.56
mg/g,
