Optimization and prediction of chromium (iv) removal from synthetic acid mine drainage using green adsorbents: A Box–Behnken design and adaptive neuro‐fuzzy inference approach
The Canadian Journal of Chemical Engineering,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 4, 2025
Abstract
Chromium
(VI)
is
a
highly
toxic
heavy
metal
ion
linked
to
severe
health
issues,
including
kidney
failure,
gastrointestinal
irritation,
multi‐organ
and
death,
depending
on
exposure
levels.
Several
chemical
traditional
water
purification
methods
have
been
developed
in
the
past,
but
most
are
expensive,
tedious,
ineffective.
This
current
study
employed
cellulose
nanocrystals
(CNCs)
prepared
via
hydrolysis
of
waste
paper,
followed
by
carboxylation
integration
with
sodium
alginate
enhance
Cr
adsorptive
properties.
The
adsorbents
were
solidified
using
calcium
chloride
characterized
for
their
structure
surface
energy
optimization.
MATLAB‐ANFIS
was
used
predict
chromium
adsorption
at
various
optimization
parameters
such
as
pH,
dosage,
contact
time,
initial
concentration.
adaptive
neuro‐fuzzy
inference
system
(ANFIS)
offered
practical
approach
optimize
processes,
saving
time
resources
real‐life
applications.
To
prediction
accuracy,
Box‐Behnken
design
(BBD)
membership
functions
(MFs)
numbers.
Eight
widely
MFs,
triangular,
trapezoidal,
Gaussian,
generalized
bell‐shaped,
evaluated.
ANFIS
models
fitted
triangular
trapezoidal
MFs
proved
statistically
significant
95%
confidence
level,
according
ANOVA
analysis.
Optimal
MF
numbers
inputs
identified
5‐5‐2
9‐9‐3
MFs.
optimized
model,
employing
achieved
low
root
mean
square
error
(RMSE)
1.9084
high
correlation
coefficient
(
R
2
)
0.9922,
demonstrating
its
accuracy
reliability
predicting
capacity
under
optimal
conditions.
systematic
demonstrates
effectiveness
accurately
optimizing
processes.
Язык: Английский
Synthesis and application of polypyrrole/CoFe2O4 nanocomposite for chromium(VI) removal: mechanistic and kinetic insights
Colloid & Polymer Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 31, 2025
Язык: Английский
Preparation and characterization of β-cyclodextrin capped magnetic nanoparticles anchored on cellulosic matrix for removal of cr(VI) from mimicked wastewater: Adsorption and kinetic studies
Journal of Environmental Science and Health Part A,
Год журнала:
2024,
Номер
unknown, С. 1 - 16
Опубликована: Ноя. 7, 2024
Hexavalent
Chromium
(Cr(VI))
is
essential
in
many
industrial
processes.
However,
it
finds
its
way
into
water
bodies,
posing
health
problems,
including
lung
cancer
and
the
inhibition
of
DNA
RNA
biological
systems.
Several
chemical
traditional
purification
methods
have
been
developed
past,
but
most
are
expensive,
tedious
ineffective.
This
study
aimed
to
prepare
characterize
a
low-cost
hybrid
adsorbent,
β-Cyclodextrin
capped
magnetic
nanoparticles
anchored
on
cellulosic
matrix
(CNC-Fe
Язык: Английский