Environmental Technology & Innovation,
Год журнала:
2021,
Номер
24, С. 102015 - 102015
Опубликована: Окт. 13, 2021
Herein,
Saccharum
munja
(SM)
plant
biomass
and
its
novel
composites
with
0.5%,
1%
2%
functionalized
carbon
nanotube
(CNT)
were
innovatively
proposed
as
a
versatile
biosorbent
for
the
removal
of
safranine
O
(SO)
methylene
blue
(MB)
dyes
from
single
binary
systems.
The
morphology,
structure
physicochemical
properties
as-fabricated
adsorbents
characterized
using
various
techniques
such
X-ray
Diffraction
(XRD),
Fourier
Transform
Infrared
(FTIR),
Field
Emission
Scanning
Electron
Microscope
(FESEM)
Differential
Calorimetry
(DSC).
Batch
adsorption
studies
revealed
maximum
at
neutral
pH
equilibrium
was
reached
within
10
min
contact
time
both
dyes.
process
modelled
by
pseudo-second-order
kinetics
Langmuir
isotherm,
where
capacity
1%CNT+SM
composite
enhanced
336.29%
35.49%
compared
to
raw
SM,
in
case
SO
MB
dye
respectively.
Interestingly,
SM
showed
higher
affinity
system
towards
(82.56-95.67%)
(80.67-94.24%)
dye.
Regeneration
depicted
excellent
reusability
even
after
tenth
sequential
adsorption–desorption
cycle,
which
makes
these
promising
material
wastewater
remediation.
Frontiers in Environmental Science,
Год журнала:
2021,
Номер
9
Опубликована: Дек. 9, 2021
Dyes,
especially
azo
dyes
contained
in
wastewaters
released
from
textile,
pigment,
and
leather
industries,
are
entering
into
natural
waterbodies.
This
results
environmental
deterioration
serious
health
damages
(for
example
carcinogenicity
mutagenesis)
through
food
chains.
Physiochemical,
membrane
processes,
electrochemical
technology,
advanced
oxidation
reverse
osmosis,
ion
exchange,
electrodialysis,
electrolysis,
adsorption
techniques
commonly
used
conventional
treatment
technologies.
However,
the
limitations
of
most
these
methods
include
generation
toxic
sludge,
high
operational
maintenance
costs.
Thus,
technological
advancements
use
to
remediate
effluents.
Adsorption
using
nonconventional
biomass-based
sorbents
is
greatest
attractive
alternatives
because
their
low
cost,
sustainability,
availability,
eco-friendly.
We
present
reviewed
up-to-date
publications
on
for
dye
removal.
Conceptualization
synthesizing
state-of-the-art
knowledge
characteristics,
experimental
conditions
were
also
discussed.
The
merits
various
biosorbents
reflected.
maximum
capacities
synthesized
order
biomass
type
(algae,
agricultural,
fungal,
bacterial,
activated
carbon,
yeast,
others).
Surface
chemistry,
pH,
initial
concentration,
temperature,
contact
time,
adsorbent
dose
as
well
ways
preparations
materials
affect
biosorption
process.
Based
average
capacity,
those
arranged
prioritized.
best
fit
isotherms
Freundlich
Langmuir
models)
basic
operating
parameters
removal
retrieved.
Which
adsorbents
have
greater
potential
based
uptake
nature,
cost-effectiveness,
bulk
mono
multilayer
behavior
was
including
desorption
cycles
preparation
operation
implementation
this
technology
forwarded.
Water,
Год журнала:
2022,
Номер
14(2), С. 140 - 140
Опубликована: Янв. 6, 2022
Pharmaceutical
contamination
threatens
both
humans
and
the
environment,
several
technologies
have
been
adapted
for
removal
of
pharmaceuticals.
The
coagulation-flocculation
process
demonstrates
a
feasible
solution
pharmaceutical
removal.
However,
chemical
coagulation
has
its
drawbacks,
such
as
excessive
toxic
sludge
production
high
cost.
To
overcome
these
shortcomings,
feasibility
natural-based
coagulants,
due
to
their
biodegradability,
safety,
availability,
investigated
by
researchers.
This
review
presented
recent
advances
using
natural
coagulants
compound
from
aqueous
solutions.
main
mechanisms
water
wastewater
are
charge
neutralization
polymer
bridges.
Natural
extracted
plants
more
commonly
than
those
animals
affordability.
competitive
in
terms
performance
environmental
sustainability.
Developing
reliable
extraction
method
is
required,
therefore
further
investigation
essential
obtain
complete
insight
regarding
effect
factors
during
coagulants.
Finally,
indirect
application
an
step
implementing
green
treatment
technologies.
Water,
Год журнала:
2025,
Номер
17(3), С. 454 - 454
Опубликована: Фев. 6, 2025
Adsorbents
derived
from
bamboo,
such
as
biochar,
charcoal,
activated
carbon,
and
chemically
modified
are
recognized
for
their
efficiency
cost-effectiveness
in
removing
heavy
metals
water.
Despite
this,
there
remains
a
gap
applying
bamboo-based
adsorbents
treating
metal-contaminated
water
sources,
particularly
regarding
physicochemical
properties,
adsorption
mechanisms,
modifications.
This
review
highlights
the
influence
of
factors
specific
surface
area,
pore
distribution,
pH,
cation
exchange
capacity,
elemental
composition,
functional
groups
on
ability
bamboo
to
adsorb
metals.
It
also
discusses
recent
advancements
enhancing
properties
through
physical
chemical
modifications
examines
how
variables
like
adsorbent
dosage,
temperature,
initial
concentrations
cations,
affect
metal
removal.
The
categorizes
mechanisms
into
complexation,
adsorption,
electrostatic
interaction,
ion
exchange,
precipitation,
redox
effect.
While
have
shown
higher
sorption
capacity
laboratory
settings,
is
need
more
comprehensive
studies
optimize
performance,
scalability,
real-world
applications.
