Sustainability,
Journal Year:
2024,
Volume and Issue:
16(24), P. 11227 - 11227
Published: Dec. 21, 2024
In
this
work,
kaolin
processing
waste
(KW)
and
columbite–tantalite
(CTW)
from
mining
activities
were
used
to
manufacture
sustainable
self-supporting
ceramic
membranes
using
the
freeze-casting
technique.
The
wastes
characterized,
formulations
only
developed.
Gelatin
was
in
as
a
aid
avoid
dendritic
or
lamellar
pores.
sintered
at
different
temperatures
(1100
°C,
1200
°C
1300
°C)
analyzed
by
X-ray
diffraction,
scanning
electron
microscopy,
flexural
strength
measurement,
mercury
porosimetry.
flux
through
measured
gravity-driven
dead-end
filtration
system.
containing
80%
KW
20%
CTW
showed
high
porosity
(59%),
water
permeate
of
126.5
L/hm2,
mechanical
1.5
MPa.
Filtration
tests
demonstrated
effective
turbidity
removal
(>99%)
for
synthetic
consisting
tap
bentonite,
reaching
0.1
NTU.
use
has
shown
considerable
promise
development
affordable
treatment
applications.
ChemistrySelect,
Journal Year:
2024,
Volume and Issue:
9(36)
Published: Sept. 1, 2024
Abstract
Researchers
have
focused
on
exploring
various
types
of
nanomaterial‐based
adsorbents,
which
carbon
nanotubes
(CNT)
are
the
most
promising,
to
offset
harmful
effects
waste
water‐containing
dyes
both
human
health
and
aquatic
ecosystems.
A
new,
novel,
efficient,
rapid,
one‐pot
synthetic
route
for
synthesizing
CNT
has
been
attempted
by
using
sodium
perchlorate
as
a
precursor
at
300
°C
3
h.
Further,
La‐CNT
(lanthanum‐doped
nanotubes)
synthesized.
These
materials
were
characterized
through
FTIR,
FESEM,
XRD,
STA,
EDS,
UV‐visible
techniques,
among
others.
Both
used
better
suitable
efficient
adsorbents
completely
remove
toxic
dye
Rh‐B
(Rhodamine
B)
(≈100%
adsorption
dye)
from
aqueous
solutions.
The
synthesized
displayed
lanthanum‐doped
aligned
nanotubes,
with
buds
present
in
La‐CNT.
was
found
be
more
thermally
stable
than
CNT.
Freundlich
Langmuir's
isotherms
validated
process,
pseudo‐second‐order
kinetics
being
favored.
Multidiscipline Modeling in Materials and Structures,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 18, 2024
Purpose
The
model
incorporates
key
factors
of
membrane
such
as
permeability
and
resistance,
feed
concentration,
fluid
viscosity
pressure
differentials.
Special
emphasis
is
placed
on
the
fouling
mechanisms,
including
pore
blockage
cake
layer
formation,
which
significantly
impact
efficiency
filtration
process.
Design/methodology/approach
In
this
study,
we
present
a
numerical
analysis
permeate
flux
through
membrane,
focusing
intricate
dynamics
phenomena.
Utilizing
Langevin
model,
simulate
permeation
process
to
understand
how
various
operational
parameters
affect
rates.
Findings
Our
results
demonstrate
that
not
only
reduces
but
also
alters
membrane’s
hydraulic
resistance
over
time.
show
increasing
diffusion
clogging
phenomenon.
Hence,
increases
transmembrane
reduce
exponentially
blocking
Originality/value
By
analyzing
these
changes,
provide
insights
into
optimizing
performance
developing
strategies
mitigate
membrane.
This
research
contributes
field
technology
by
enhancing
our
understanding
behavior
under
conditions
offering
potential
pathways
for
improving
long-term
sustainability.
