Magnesium modified algae biochar for phosphorus adsorption: Synthesis, experimental analysis, DFT calculations and regeneration
Journal of Water Process Engineering,
Год журнала:
2025,
Номер
71, С. 107169 - 107169
Опубликована: Фев. 6, 2025
Язык: Английский
Phosphate adsorption study employing a synthesized activated carbon derived from banana pseudostem
Revista AIDIS de Ingeniería y Ciencias Ambientales Investigación desarrollo y práctica,
Год журнала:
2025,
Номер
unknown, С. 111 - 124
Опубликована: Апрель 21, 2025
In
recent
years,
the
application
of
biomass
sources
as
precursors
for
various
materials
has
been
employed
an
alternative
waste
reuse.
The
banana
pseudostem,
being
a
lignocellulosic
residue
generated
in
huge
quantities,
studied
its
reuse
possibilities.
use
this
biomaterial
pyrolyzed
and
activated
adsorbent
compound
is
promising
wastewater
treatment.
Phosphorus
(P),
macronutrient,
must
have
concentration
controlled
water
bodies,
it
contributes
to
eutrophication
process
causes
environmental
impact,
demanding
effective
control
release
removal
wastewater.
Although
some
studies
already
applied
pseudostem
treatment,
phosphorus
still
scarce.
Therefore,
work
aimed
produce
characterize
carbon
(BPAC)
under
specific
conditions
at
600°C
90
minutes,
through
chemical
activation
with
zinc
chloride
ratio
3:1.
results
showed
surface
area
996
m²
g-1,
kinetic
adsorption
isotherm
tests
revealed
equilibrium
time
16
hours
maximum
P
capacity
11.82
mg
L-1,
respectively.
pseudo-first
order
kinetics
model
were
better
fitted
experimental
results,
18°C,
Langmuir
was
fitted.
pH
point
zero
charge
resulted
value
7.20,
indicating
that
favored
near
neutrality.
Язык: Английский
Synthesis of Lanthanum-Modified Natural Magnetite: Characterization and Valorization for Phosphorus Recovery from Aqueous Solutions
Materials,
Год журнала:
2025,
Номер
18(10), С. 2283 - 2283
Опубликована: Май 14, 2025
In
this
research
work,
a
natural
sample
from
an
Omani
magnetite
(MG)
deposit
was
used
for
the
synthesis
of
decorated
with
ferrihydrite
(MG-Fh),
and
two
lanthanum
(La)-modified
materials
at
mass
percentages
5%
(MG-Fh-La-5)
15%
(MG-Fh-La-15).
These
were
first
characterized
using
various
analytical
techniques.
Then,
their
phosphorus
(P)
recovery
efficacy
aqueous
solutions
studied
in
batch
mode
under
wide
range
experimental
conditions.
The
characterization
results
show
that
compared
to
raw
feedstock,
MG-Fh,
MG-Fh-La-5,
especially
MG-Fh-La-15
have
improved
structural,
textural,
surface
chemistry
properties.
Adsorption
tests
indicate
due
deposition
high
contents
oxides
on
its
surface,
MG-La-15
exhibited
large
P
uptake
capacity
(34.5
mg
g-1),
which
is
significantly
superior
those
determined
MG-La-5
(24.3
MG-Fh
(12.4
engineered
published
literature.
Moreover,
these
retain
interesting
ability
recover
real
wastewater
highest
adsorbed
27.3
g-1,
observed
MG-La-15.
seems
involve
both
physical
chemical
mechanisms,
including
electrostatic
interactions
complexation.
This
work
shows
La-modified
can
be
considered
promising
eco-friendly
material
liquid
effluents.
Язык: Английский