Results in Engineering,
Journal Year:
2024,
Volume and Issue:
23, P. 102562 - 102562
Published: July 14, 2024
Ensuring
safe
drinking
water
remains
a
significant
challenge
due
to
the
prevalence
of
waterborne
diseases.
While
chlorine-based
and
UV-based
methods
effectively
kill
pathogens,
they
often
generate
harmful
byproducts.
Consequently,
there's
pressing
need
for
innovative
techniques,
such
as
utilizing
silver
nanoparticles(AgNPs)
renowned
their
antibacterial
properties.
In
this
study,
chemical
reduction
technique
was
employed
synthesize
AgNPs.
Subsequently,
these
AgNPs
underwent
comprehensive
characterization
using
techniques
FTIR,
XRD,TGA
XPS.
The
synthesized
nanoparticles
were
then
applied
disinfecting
spring
water.
experimental
design
meticulously
planned
central
composite
method
(CCD)
from
Response
Surface
Methodology
(RSM),
facilitated
by
Design
Expert
software.
Three
key
factors:
AgNPs,
pH,
contact
time
varied
across
three
levels,
resulting
in
total
20
designed
experiments.
These
experiments
conducted
accordance
with
specified
run
order,
culminating
achievement
maximum
bacteria
growth
inhibition
efficiency
99.72
%
at
optimal
conditions
0.01
mg/100
mL
dose,
pH
6,
min.
Overall,
findings
study
underscore
Desalination and Water Treatment,
Journal Year:
2024,
Volume and Issue:
318, P. 100384 - 100384
Published: April 1, 2024
Advanced
oxidation
processes
(AOPs)
have
become
increasingly
more
useful
and
necessary
in
the
past
few
decades
because
they
can
degrade
a
wide
range
of
organic
inorganic
contaminants.
The
toxic
recalcitrant
nature
many
contaminants
obstruct
traditional
biological
processes,
making
treatment
ineffective.
Therefore,
there
is
pressing
need
to
develop
apply
effective
for
industrial
wastewater,
polluted
by
pharmaceuticals,
dyes,
other
industries.
AOPs
successful
technologies
treating
wastewater
remove
contaminants,
reduce
toxicity,
improve
biodegradability,
including
using
ultraviolet
(UV)
visible
light
(VIS)
combined
with
homogenous
or
heterogeneous
catalysts.
This
review
shows
that
Fenton
process
semiconductor
material
greatly
facilitates
removing
various
pollutants.
Additionally,
photocatalysis
research
ongoing
this
method
effectively
removes
emerging
In
addition,
challenges,
needs,
future
uses
are
described
performance
hasten
large-scale
implementation
water
treatment.
Water Practice & Technology,
Journal Year:
2024,
Volume and Issue:
19(7), P. 2799 - 2815
Published: June 25, 2024
ABSTRACT
This
study
investigated
the
removal
of
a
typical
organic
pollutant
methylene
blue
(MB)
dye
from
wastewater
by
prepared
mesoporous
SBA-15
adsorbent
in
continuous
adsorption
system
(fixed-bed
column).
The
structural
and
textural
properties
were
determined
using
different
characterization
techniques.
experiments
assessed
bed
height
effect,
initial
concentration,
flow
rate
on
breakthrough
curve.
kinetic
constants
curves
obtained
Thomas
Yan
models.
results
revealed
that
has
an
excellent
efficiency
for
use
system.
findings
explain
MB
achieved
maximum
uptake
(84
mg/g)
at
6
cm
height,
0.5
mL/min
rate,
30
mg/L
concentration
MB.
can
be
efficiently
regenerated
calcination
re-employed
5
times
fixed-bed
without
significant
loss
its
capacity
solutions.
As
result,
was
as
appropriate
media
to
suggests
is
feasible
effectively
wastewater.
Journal of Dispersion Science and Technology,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 17
Published: Jan. 9, 2025
Microalgae,
with
their
rapid
growth
and
broad
availability,
offer
significant
potential
as
biosorbents
for
wastewater
dye
removal.
This
study
develops
a
novel
biocomposite
film
combining
pectin,
alginate,
surfactant-modified
Chlorella
vulgaris
biomass
to
help
methyl
orange
(MO),
an
anionic
azo
that
is
widely
used
in
industry,
adsorb
the
film.
Hexadecyltrimethylammonium
bromide
(HTAB)
was
prepare
biomass,
calcium
chloride
cross-linking
embed
it
biopolymer
matrix.
Characterization
reveals
increase
surface
area
pore
size
due
encapsulation,
while
adsorption
driven
by
electrostatic
forces,
hydrogen
bonding,
hydrophobic
interactions.
Batch
experiments
examined
effects
of
pH
(2–10),
concentration
(50–300
mg/L),
contact
time
(up
1440
min),
temperature
(30–50
°C)
on
adsorption.
Optimal
conditions
included
8.0,
420
min
time,
30
°C,
achieving
maximum
MO
uptake
112.06
±
1.18
mg/g.
Morphological
analysis
showed
biocomposite's
had
powdery
residue
left
over
after
adsorbed.
higher
levels
carbon
oxygen,
which
consistent
dye's
composition.
The
exhibited
two
points
zero
charge
at
4.0
11.9.
Adsorption
data
fit
Freundlich
isotherm
pseudo-second
order
equation,
thermodynamic
confirmed
exothermic
spontaneous
nature
process.
finding
highlights
this
economical
efficient
removal,
presenting
sustainable
approach
treatment.
International Journal of Electrochemical Science,
Journal Year:
2024,
Volume and Issue:
19(9), P. 100713 - 100713
Published: July 6, 2024
In
this
study,
we
investigated
the
effectiveness
of
commercially
available
activated
carbon
(CAC)
and
felt
(PANI/CF)
for
removal
reactive
blue
dye
49
(RB49)
from
an
aqueous
solution.
We
performed
a
parametric
analytical
adsorption
research
in
order
to
achieve
goal,
looking
at
impact
several
important
parameters
like
adsorbent
mass,
absorption
duration,
concentration
ionic
strength,
pH
RB49
The
measurement
results
demonstrate
that
CAC
dosage
ranged
0.1
5
g.
levels
increased
17.73
%
97.62
PANI/CF
assay
0.228
1.044
percentage
delayed
90.78
99.97
%.
It
was
found
highest
obtained
<
7
both
adsorbents.
yield
then
stabilized
equilibrium
within
2
hours
contact.
kinetics
were
determined
using
pseudo-first-order,
pseudo-second-order
Elovich
models.
According
experimental
results,
pseudo-first
kinetic
model
proved
be
most
suitable
adsorbent,
while
three
models
perfectly
adsorbent.
(parameters)
isotherms
studied
Langmuir,
Freundlich
Temkin
data
are
more
satisfactory
better
fitted
Langmuir
on
second
CF/PANI;
show
is
agreement
with
isothermal
study
shown
organic
may
successfully
removed
solutions
as
materials.
