Unveiling the promise of biosorption for heavy metal removal from water sources
Desalination and Water Treatment,
Год журнала:
2024,
Номер
319, С. 100523 - 100523
Опубликована: Июнь 12, 2024
Heavy
metals
represent
a
significant
contributor
to
water
pollution,
posing
serious
environmental
and
health
risks
due
human
activities
industrialization.
The
release
of
heavy
metal
contaminants
into
sources
has
spurred
extensive
research
wastewater
treatment
methods,
including
precipitation,
evaporation,
ion
exchange,
membrane
processes,
electroplating.
However,
these
conventional
techniques
often
prove
costly,
limited
in
effectiveness,
may
inadvertently
exacerbate
pollution
concerns.
This
review
underscores
biosorption
as
highly
promising
alternative
for
effectively
removing
harmful
ions
from
sources.
Biosorption,
physical
technique,
capitalizes
on
mechanisms
such
surface
complexation,
leveraging
more
economical
biological
materials
biosorbents.
Microorganisms,
encompassing
bacteria,
fungi,
algae,
plant
products,
emerge
pivotal
agents
biosorption,
offering
sustainable
cost-effective
approach.
There
is
growing
interest
harnessing
local
microbiota
aiming
mitigate
contamination
without
adverse
impacts.
Notably,
both
living
deceased
fungal
biomass
have
garnered
attention
adsorbents
eliminating
solutions.
behavior
presents
numerous
advantages,
warranting
further
fully
exploit
its
potential
endeavors.
Язык: Английский
Heavy metal tolerance, and metal biosorption by exopolysaccharides produced by bacterial strains isolated from marine hydrothermal vents
Chemosphere,
Год журнала:
2024,
Номер
351, С. 141170 - 141170
Опубликована: Янв. 12, 2024
Язык: Английский
Capsular Polysaccharides Are Crucial for the Biosorption of Aqueous Pb(II) Ions by Limosilactobacillus fermentum B44 In Vitro
Biological Trace Element Research,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 10, 2025
Язык: Английский
Efficient and Rapid Removal of Nickel Ions from Electroplating Wastewater Using Micro-/Nanostructured Biogenic Manganese Oxide Composite
Journal of Composites Science,
Год журнала:
2024,
Номер
8(2), С. 63 - 63
Опубликована: Фев. 7, 2024
Manganese
oxides
reportedly
exhibit
pronounced
adsorption
capacities
for
numerous
heavy-metal
ions
owing
to
their
unique
structural
properties.
Herein,
a
biogenic
manganese
oxide
(BMO)
composite
was
developed
and
used
remove
Ni
from
Ni2+-containing
electroplating
wastewater.
The
formation
of
BMO
the
micro-/nanoscale
fine
microstructure
were
characterized
via
scanning/high-resolution
transmission
electron
microscopies
X-ray
diffraction
assays.
Under
optimized
conditions,
with
an
temperature
50
°C,
pH
6,
showed
100%
removal
efficiency
within
rapid
equilibrium
reaction
time
20
min
towards
initial
Ni2+
concentration
10
mg
L−1
remarkable
capacity
416.2
g−1
600
in
Ni-electroplating
pseudo-second-order
equation
applicable
sorption
data
at
low
concentrations
10–50
over
course.
Moreover,
Freundlich
isotherm
models
fitted
biosorption
well.
Fourier-transform
infrared
spectroscopic
analysis
validated
that
closely
associated
groups.
In
five
continuous
cycles
adsorption/desorption,
exhibited
high
recovery
capacities,
thereby
showing
efficient
performance
potential
treating
industrial
Язык: Английский
Nanocellulose-Based Adsorbent for Cu(II) Adsorption
Engineering Technology & Applied Science Research,
Год журнала:
2024,
Номер
14(4), С. 15338 - 15343
Опубликована: Авг. 2, 2024
This
study
addresses
the
critical
issue
of
copper
removal
from
wastewater
due
to
environmental
and
health
concerns.
Choosing
pandan
leaves
as
a
source
cellulose
was
deliberate
decision
their
abundant
availability
in
nature
minimal
ecological
footprint.
Through
utilization
these
properties,
this
synthesized
nanocellulose
with
enhanced
adsorption
capabilities
by
employing
chemical
pretreatments,
sulfuric
acid
hydrolysis,
acrylamide
grafting
aid
ceric
ammonium
nitrate
(CAN)
an
initiator.
In
order
thoroughly
evaluate
material,
X-Ray
diffractometer
(XRD)
Fourier
transform
infrared
(FTIR)
spectroscopy
were
used.
These
characterization
methods
revealed
insights
into
morphology,
functionality,
crystallinity
nanocellulose.
The
copper(II)
ions
is
investigated
atomic
absorption
spectrometer
(AAS),
focusing
on
three
important
factors:
pH
variation,
initial
concentration,
adsorbent
dosage,
which
are
carefully
examined.
Grafted
demonstrates
superior
performance,
achieving
over
85%
efficiency.
Optimal
Cu(II)
conditions
identified
at
6,
metal
ion
concentration
30
ppm
dose
2.2
g/L.
not
only
concern
treatment,
but
also
explores
potential
leaf-derived
sustainable
solution
for
heavy
removal.
Язык: Английский
Chitosan modified diatomite cross-linked with sodium alginate and polyethyleneimine composite gel particles for efficient removal of copper and lead ions
Research Square (Research Square),
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 10, 2024
Abstract
This
study
involved
the
synthesis
of
a
novel
composite
gel
consisting
chitosan
modified
diatomite
(DE/CS),
sodium
alginate
(SA),
and
polyethyleneimine
(PEI)
(DE/CS-PEI@SA)
using
ion
crosslinking
method.
The
micro
characteristics
gels
were
examined
through
scanning
electron
microscopy,
X-ray
diffraction,
differential
calorimetry/thermal
gravimetric
analysis,
Brunauer-Emmett-Teller
systems.
Their
adsorption
properties
mechanisms
towards
copper
Cu(II)
lead
Pb(II)
ions
investigated
infrared,
photoelectron
spectroscopy,
energy
dispersive
Zeta
potential
analyses.
DE/CS-PEI@SA
exhibit
numerous
uniform
folds
on
its
surface,
boasting
specific
surface
area
18.96
m
2/g
pore
size
ranging
from
1.5
to
80.0
nm,
demonstrating
robust
thermal
stability
pre-
post-
adsorption.
Notably,
these
demonstrate
impressive
capacities
for
(174.39
mg/g)
(295.04
mg/g),
respectively.
integration
DE/CS
PEI
within
contributes
complex
structure
multitude
accessible.
behavior
is
accurately
characterized
by
pseudo-second-order
kinetic
model
Langmuir
model.
predominant
mechanism
involves
single-molecule
chemisorption,
involving
coordination
adsorption,
exchange,
electrostatic
attraction.
demonstrates
notable
efficiency
in
cost-effectiveness,
ease
separation,
rendering
it
viable
option
wastewater
treatment
applications.
Язык: Английский
Chitosan Modified Diatomite Cross-Linked with Sodium Alginate and Polyethyleneimine Composite Gel Particles for Efficient Removal of Copper and Lead Ions
Journal of Polymers and the Environment,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 29, 2024
Язык: Английский
Topological structure, rheological characteristics and biological activities of exopolysaccharides produced by Saccharomyces cerevisiae ADT
International Journal of Biological Macromolecules,
Год журнала:
2024,
Номер
unknown, С. 138297 - 138297
Опубликована: Дек. 1, 2024
Язык: Английский
The development of multifunctional biochar with NiFe2O4 for the adsorption of Cd (II) from water systems: The kinetics, thermodynamics, and regeneration
Journal of Environmental Management,
Год журнала:
2024,
Номер
373, С. 123705 - 123705
Опубликована: Дек. 17, 2024
Язык: Английский