Water Air & Soil Pollution,
Год журнала:
2024,
Номер
235(3)
Опубликована: Фев. 23, 2024
Abstract
Over
a
billion
people
in
developing
countries
do
not
have
access
to
clean
water.
Industries
such
as
textiles,
tanneries,
and
plastics
release
wastewater
with
toxic
dyes
that
require
treatment
remove
the
color.
Adsorption
coagulation
are
known
methods
for
removing
from
wastewater.
The
production
of
natural
adsorbents
coagulants
involves
use
waste
agricultural
products,
which
makes
them
cost-effective
environmentally
friendly.
They
can
be
modified
achieve
high
dye
removal
rate.
Natural
more
eco-friendly
than
synthetic
materials
activated
carbon
alum,
because
they
similar
levels
efficiency
while
being
biodegradable
reusable.
combination
two
help
reduce
required
dosage
adsorbent
coagulant
simultaneously
improve
rate
removal.
purpose
this
review
is
evaluate
contrast
efficacy
recent
coagulants,
friendly
abundant
nature.
Additionally,
it
aims
introduce
novelty
by
reviewing
combined
coagulation/flocculation
adsorption
systems
process
dyes,
utilizing
derived
wastes.
As
turns
out,
most
examined
were
Methylene
Blue
Congo
Red
used
banana
peels,
orange
nut.
Furthermore,
Moringa
oleifera
both
single
systems.
Regarding
adsorption,
was
observed
peels
could
different
efficiency.
ACS Omega,
Год журнала:
2024,
Номер
9(20), С. 21751 - 21767
Опубликована: Май 10, 2024
The
elimination
of
dyes
discharged
from
industrial
wastewater
into
water
bodies
is
crucial
due
to
its
detrimental
effects
on
aquatic
organisms
and
potential
carcinogenic
impact
human
health.
Various
methods
are
employed
for
dye
removal,
but
they
often
fall
short
in
completely
degrading
the
generating
large
amounts
suspended
solids.
Hence,
there
a
critical
need
an
efficient
process
that
can
achieve
complete
degradation
with
minimal
waste
emission.
Among
traditional
treatment
approaches,
photocatalysis
stands
out
as
promising
method
diverse
toxic
organic
pollutants
present
wastewater.
In
this
review,
heterogeneous
well
explained
removal.
This
comprehensive
review
not
only
provides
insightful
illumination
classification
also
thoroughly
explains
various
removal
underlying
mechanisms
photocatalysis.
Furthermore,
factors
which
effect
activity
detail.
Likewise,
we
categorized
photocatalyst
three
generations
observed
their
addresses
challenges
effectiveness
field.
Its
primary
aim
offer
overview
photocatalytic
pollution
explore
further
future
applications.
Scientific Reports,
Год журнала:
2022,
Номер
12(1)
Опубликована: Авг. 26, 2022
In
the
present
research,
magnetic
rhamnolipid-Co/Al
layered
double
hydroxide
(MR-LDH)
was
synthesized
to
uptake
methylene
blue
(MB)
and
reactive
orange
16
(RO16)
from
aqueous
solution.
The
main
parameters,
including
pH,
adsorbent
dosage,
contact
time,
initial
analyte
concentration,
were
optimized
achieve
best
adsorption
efficiency.
Accordingly,
elimination
of
MB
on
MR-LDH
is
improved
in
basic
medium
due
electrostatic
interactions
between
negative
charge
positive
dye.
contrast,
acidic
(pH
=
3)
favored
for
RO16
because
hydrogen
bonding
protonated
form
azo
dye
hydroxyl
groups
at
surface
MR-LDH.
calculated
maximum
capacities
54.01
53.04
mg/g
313
K,
respectively.
Langmuir
model,
which
assumes
monolayer
surface,
provides
explanation
both
dyes
(R2
0.9991
R2
0.9969
RO16).
Moreover,
pseudo-second-order
kinetic
model
described
process
0.9970)
0.9941).
proposed
maintains
stable
performance
four
consecutive
cycles.
After
each
process,
easily
separated
by
an
external
magnet.
findings
show
that
found
be
excellent
removal
cationic
anionic
organic
solutions.
