BioResources,
Journal Year:
2024,
Volume and Issue:
19(2), P. 3543 - 3570
Published: April 17, 2024
Raw
and
citric
acid
chemically
treated
date
palm
stone
agro-waste
biomass
(RDSB
CA-MDSB)
powders
were
used
to
remove
an
important
class
of
emerging
industrial
pollutants,
i.e.,
2,4,6-trichlorophenol
(2,4,6-TCP)
from
aqueous
solutions
towards
sustainable
waste
utilization
develop
cost-effective
technology
for
treating
wastewater.
The
characterization
was
performed
by
using
different
analytical
techniques
such
as
CHN
elemental
analysis,
particle
size,
BET,
FTIR,
SEM-EDX,
TGA
analysis.
FTIR
spectral
analysis
revealed
that
the
main
chemical
groups
(N–C,
O=C,
H-O,
H-C,
O–C)
involved
in
trapping
2,4,6-TCP.
highest
adsorption
achieved
with
a
contact
time
150
120
min,
initial
concentration
50-200
mg/L,
biosorbent
dosage
ranging
0.1
1.0
g/L
RDSB
CA-MDSB,
respectively.
experimental
kinetic
data
process
both
adsorbents
fitted
very
well
pseudo-second-order
model
Langmuir
equilibrium
data.
2,4,6-TCP
maximum
monolayer
capacities
53.7,
123.8
mg/g
present
research
confirms
could
be
effective
low-cost
remediation
environment.
Chemical Engineering Communications,
Journal Year:
2024,
Volume and Issue:
211(8), P. 1139 - 1156
Published: April 12, 2024
Water
pollution
is
a
major
environmental
concern
worldwide,
particularly
due
to
industrial
paint
waste.
Therefore,
treating
wastewater
from
various
sources
crucial
restoring
quality.
In
this
study,
batch
biosorption
system
was
used
investigate
the
of
Rhodamine
B
(RhB),
highly
toxic
dye,
on
Teucrium
polium
seeds
(TPS).
The
study
examined
effects
different
parameters
such
as
initial
dye
concentration,
contact
time,
pH,
temperature,
and
biosorbent
amount
RhB
removal.
To
determine
physicochemical
properties
TPS,
scanning
electron
microscopy
(SEM),
energy-dispersive
X-ray
(EDX),
Fourier
transform
infrared
spectroscopy
(FTIR),
Brunauer-Emmett-Teller
(BET),
zero
charge
point
(PZC)
characterization
analyses
were
performed.
maximum
capacity
TPS
at
pH
=
5.5
25
°C
found
be
4.18
mg
g−1.
that
removal
rate
93.3%
an
concentration
200
L−1.
experimental
data
showed
Langmuir
isotherm
model
(R2
0.940)
most
compatible
for
biosorption,
while
kinetic
mechanism
proceeded
through
pseudo-second-order
(PSO)
0.925).
Additionally,
intraparticle
diffusion,
pore
film
diffusion
effective
in
mechanism.
Thermodynamic
studies
revealed
endothermic
(ΔH0>0),
spontaneous
(ΔS0>0),
entropy-increasing
(ΔG0
<0).
As
result,
which
has
suitable
adsorbent
RhB,
can
recommended
new,
cost-effective,
abundant
potential
biosorbent.
Pure and Applied Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 29, 2025
Abstract
The
operational
industries
continuously
contribute
significant
volumes
of
synthetic
dyes
along
with
other
pollutants
into
the
aquatic
environment.
global
issue
dye
induced
water
contamination
was
addressed
through
facile
synthesis
hydrophobically
associated
poly(lauryl
methacrylate-acrylamide)
[p(LMA-AAm)]
hydrogel
by
free
radical
polymerization
method.
SEM
(Scanning
Electron
Microscope)
micrographs
depicted
suitability
hybrid
sorbent
for
crystal
violet
(CV)
uptake
owing
to
porous,
rough
and
spongy
texture.
fabricated
utilized
CV
sorption
performing
different
tests
like
contact
time,
pH,
initial
concentration
effect
on
sorption.
obtained
kinetic
isothermal
data
fitted
well
non-linear
versions
pseudo
second
order
Langmuir
models
respectively.
thermodynamics
signified
process
spontaneous
endothermic
nature.
After
sorption,
resultant
[CV/p(LMA-AAm)]
waste
applied
toluene
(oil
probe)
separation
from
which
performed
excellent
in
range
83–74
%
during
first
three
tests.
Thus,
desirable
properties,
fabrication
promising
oil
power
may
recommend
composite
applications
relevant
fields
treatment,
ACS Omega,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 9, 2025
Dyes
are
a
major
source
of
contamination
in
industrial
wastewater,
posing
significant
challenges
for
effective
remediation
due
to
their
structural
resilience,
low
biodegradability,
recalcitrant
behavior,
and
toxic
properties.
Given
the
limitations
conventional
treatment
methods,
recent
research
has
increasingly
focused
on
developing
innovative,
sustainable,
environmentally
friendly
solutions
address
this
pressing
issue.
This
study
investigates
potential
Pseudomonas
aeruginosa
biological
by
comparing
two
textile
dyes:
anionic
indigo
carmine
(IC)
cationic
safranine-T
(ST).
The
influence
different
initial
dye
concentrations
(50,
100,
150,
500
mg
L-1),
agitation
rates
(static
vs
125
rpm),
growth
medium
(25
50
g
L-1)
was
also
assessed.
It
found
that
P.
achieved
>96%
decolorization
IC
within
8
h
under
agitation,
with
rate
60.27
L-1
h-1.
In
contrast,
ST
showed
limited
removal
(77.2%)
only
lowest
concentration
highest
concentration.
Agitation
consistently
enhanced
removal,
likely
metabolized
as
an
energy
source,
while
attributed
biosorption.
Second-order
kinetic
models
best
described
process.
These
findings
highlight
resources
efficient,
sustainable
wastewater
treatment,
offering
viable
alternative
methods
contributing
environmental
sustainability.
Further
optimization
process
conditions
could
broaden
its
application
effluent
management.
Sustainability,
Journal Year:
2023,
Volume and Issue:
15(22), P. 15727 - 15727
Published: Nov. 8, 2023
Industrial
wastewater
effluents
containing
dyes
are
considered
to
pollute
and
be
harmful
the
environment.
Among
various
removal
techniques,
adsorption
process
using
low-cost
adsorbents
has
been
successfully
used
remove
pollutants.
In
this
work,
Aloe
vera
leaves
(AVs)
have
as
adsorbent
for
of
Orange
II
(O-II).
A
three-level
three-factor
Box–Behnken
factorial
design,
including
three
replicates
center
points,
was
applied
investigate
main
parameters
affecting
biosorption
O-II
dye
in
aqueous
solutions
by
AVs.
The
selected
were
dose,
initial
concentration,
contact
time.
experiment
design
given
a
satisfactory
result
optimization
process.
obtained
value
R2
(0.9993)
shows
that
quadratic
response
model
adequately
represents
relationship
between
each
chosen
variables.
pH
influences
capacity,
obtaining
at
2
maximum
capacity
value.
From
kinetic
models
studied,
one
best
describes
on
is
Bangham
(ARE
=
1.06%).
isotherm
experimental
data
Toth
model.
15.9
mg·g−1.
