Salud Ciencia y Tecnología - Serie de Conferencias,
Год журнала:
2024,
Номер
4, С. 1167 - 1167
Опубликована: Дек. 23, 2024
Introduction:
Disposal
of
heavy
metals
into
the
water
as
a
result
industrial
development
might
cause
threat
Health
and
environment.
aim
this
study
was
to
assess
uptake
Co2+
from
aqueous
solutions
via
NiO/
γ-Al2O3
nano
catalysts.
Methods:
The
main
variables
that
affect
percentage
metal
removal
were
assessed.
It
took
about
50
minutes
attain
equilibrium
for
elimination
Co+2
ions.
discovered
raising
adsorbate
concentration
increasing
surface
weight
somewhat
lowered
cobalt
Results:
ions
shown
depend
on
temperature,due
ecothermic
natural
prosess
temperature
associated
with
decrease
elemination
.
Conclusions:
adsorption
seems
be
spontaneous,
exothermic,
less
random
according
calculated
values
thermodynamic
functions
(∆G,
∆H,
∆S)
adsorption.
After
data
fitted
number
kinetic
models,
including
Elovich
model,
pseudo-first
order,
pseudo-second
intraparticle
diffusion
equations,
it
pseudo-second-order
model
performed
best
at
describing
adsorption,
high
correlation
factor
(R2).
Desalination,
Год журнала:
2024,
Номер
582, С. 117624 - 117624
Опубликована: Апрель 11, 2024
Electrodialysis
with
bipolar
membranes
(EDBM)
can
transform
desalination
brines
into
acids
and
bases
through
the
application
of
an
electric
field.
Nevertheless,
widespread
EDBM
is
limited
by
its
high
energy
consumption,
typically
based
on
fossil
fuels.
Yet,
integration
renewable
sources,
like
solar
photovoltaic
(PV),
remains
unexplored.
This
study
presents
a
techno-economic
analysis
PV-EDBM
to
produce
NaOH
HCl
from
seawater
reverse
osmosis
(SWRO)
brines.
An
integrated
model
was
developed
applied
hypothetical
plant
located
in
SWRO
facility
Lampedusa
(Italy).
Results
revealed
that
PV
has
no
negative
impact
performance
terms
product
concentration,
specific
consumption
current
efficiency.
Meanwhile,
levelized
cost
for
reduced
20
%
comparison
electrical
grid
mix,
achieving
210
€·ton−1
annual
average
PV-EDBM.
Therefore,
investment
associated
offset
benefits
electricity
costs
grid.
Consequently,
emerges
as
feasible
solution
addressing
resource
scarcity,
representing
significant
step
towards
integrating
energies
advanced
wastewater
treatment
technologies,
thus
paving
path
greener
future.
Langmuir,
Год журнала:
2024,
Номер
40(9), С. 4927 - 4939
Опубликована: Фев. 20, 2024
Serious
water
contamination
induced
by
massive
discharge
of
cadmium(II)
ions
is
becoming
an
emergent
environmental
issue
due
to
high
toxicity
and
bioaccumulation;
thus,
it
extremely
urgent
develop
functional
materials
for
effectively
treating
with
Cd2+
from
wastewater.
Benefiting
abundant
binding
sites,
simple
preparation
process,
adjustable
structure,
UiO-66-type
metal–organic
frameworks
(MOFs)
had
emerged
as
promising
candidates
in
heavy
metal
adsorption.
Herein,
monolithic
UiO-66-(COOH)2-functionalized
cellulose
fiber
(UCLF)
adsorbents
were
simply
fabricated
incorporating
MOFs
into
membranes
through
physical
blending
self-entanglement.
A
two-dimensional
structure
was
facilely
constructed
fibers
sustainable
biomass
agricultural
waste,
providing
a
support
platform
the
integration
eco-friendly
UiO-66-(COOH)2
synthesized
lower
temperature
solvent.
Structure
characterization
bath
experiments
performed
determine
operational
conditions
maximization
adsorption
capacity,
thereby
bringing
out
excellent
capacity
96.10
mg/g.
UCLF
adsorbent
holding
10
wt
%
loadings
(UCLF-2)
exhibited
higher
toward
compared
other
related
adsorbents.
Based
on
kinetics,
isotherms,
thermodynamics,
behavior
spontaneous,
exothermic,
well
monolayer
chemisorption.
Coordination
electrostatic
attraction
perhaps
mechanisms
involved
deeply
unveiled
effects
adsorbate
solution
pH
X-ray
photoelectron
spectroscopy.
Moreover,
UCLF-2
good
mechanical
strength
offered
structural
guarantee
successful
implementation
practical
applications.
This
study
manifested
feasibility
used
novel
strategy
shape
MOF
wastewater
decontamination.
The Science of The Total Environment,
Год журнала:
2024,
Номер
926, С. 171947 - 171947
Опубликована: Март 24, 2024
This
research
investigates
the
potential
of
utilizing
vine
shoots,
a
byproduct
viticulture
industry,
as
biosorbent
for
cadmium
removal
from
aqueous
solutions.
The
Spanish
wine
one
most
influential
sectors,
produces
two
to
three
million
tons
shoots.
By
using
shoots
biosorbent,
this
study
contributes
circular
economy
paradigm,
transforming
waste
materials
into
valuable
resources
and
minimizing
environmental
impacts
associated
with
generation
disposal.
underscores
significance
in
biosorption
due
its
high
lignocellulosic
content.
experimental
analysis,
efficacy
is
evaluated,
considering
factors
such
impact
or
energy
consumption.
examines
effect
six
key
input
parameters
on
efficiency
power
consumption,
identifying
optimal
conditions
maximum
minimal
findings
suggest
that
offer
promising
capabilities,
promoting
sustainability
wastewater
treatment
remediation
efforts.
employing
response
surface
method
alongside
desirability
functions,
determined
variables
distinct
optimization
scenarios.
Notably,
second
scenario,
rate
99.23
%
was
achieved
while
consuming
25.6
W
power.
achievement
should
be
set
follows:
initial
concentration
100
ppm,
pH
level
8,
stirring
time
75
min,
speed
rpm,
temperature
26
°C,
dose
0.1
g.
Langmuir,
Год журнала:
2024,
Номер
40(16), С. 8738 - 8750
Опубликована: Апрель 11, 2024
In
this
work,
a
novel
birnessite-type
MnO2
modified
corn
husk
sustainable
biomass
fiber
(MnO2@CHF)
adsorbent
was
fabricated
for
efficient
cadmium
(Cd)
removal
from
aquatic
environments.
MnO2@CHF
designed
KMnO4
hydrothermally
treated
with
fibers.
Various
characterization
revealed
that
possessed
the
hierarchical
structure
nanosheets,
large
specific
surface
area,
and
multiple
oxygen-containing
functional
groups.
Batch
adsorption
experimental
results
indicated
highest
Cd
(II)
rate
could
be
obtained
at
optimal
conditions
of
amount
0.200
g/L,
time
600
min,
pH
6.00,
temperature
40.0
°C.
Adsorption
isotherm
kinetics
showed
behavior
on
monolayer
process
dominated
by
chemisorption
intraparticle
diffusion.
The
optimum
capacity
(Langmuir
model)
23.0
mg/g,
which
higher
than
those
other
reported
common
materials.
Further
investigation
involved
mainly
ion
exchange,
complexation,
redox
reaction,
electrostatic
attraction.
Moreover,
maximum
natural
river
samples
(Xicheng
Canal)
reach
59.2%
during
first
cycle
test.
This
study
an
ideal
candidate
in
practical
application
treatment,
providing
references
resource
utilization
agricultural
wastes
heavy
metal
removal.
Environmental Research,
Год журнала:
2024,
Номер
262, С. 119893 - 119893
Опубликована: Авг. 30, 2024
The
management
of
drinking
water
treatment
residuals
(DWTRs)
poses
significant
environmental
and
economic
challenges
for
facilities;
however,
these
residues
have
considerable
potential
as
effective
adsorbents
pollutant
removal.
objectives
this
review
are
to
evaluate
research
conducted
from
2015
2024
on
modification
techniques
aimed
at
enhancing
DWTRs'
efficacy
adsorbents,
analyze
the
influence
preparation
methods
DWTRs
performance,
different
pollutants,
discuss
limitations
in
applications.
addresses
knowledge
gap
by
detailed
analysis
advanced
methods,
which
not
been
extensively
reviewed
before,
their
direct
impact
physicochemical
properties
adsorption
performance
DWTRs.
explores
various
including
thermal
treatment,
chemical
activation,
granulation,
pelletization,
development
composite
materials.
Key
findings
indicate
that
significantly
increases
surface
area
porosity,
while
activation
introduces
functional
groups
enhance
capacity.
Composite
DWTRs,
incorporating
metals,
organic
compounds,
or
magnetic
properties,
demonstrate
superior
adsorbing
diverse
contaminants
such
dyes
heavy
metals.
Despite
advancements,
remain,
particularly
reporting
life
cycles
costs
treated
modified
regeneration
spent
adsorbents.
highlights
importance
optimizing
By
synthesizing
existing
identifying
key
areas
future
research,
aims
advance
sustainable
practices
resource
recovery,
aligning
with
global
sustainability
goals.
