Journal of Water Process Engineering,
Journal Year:
2024,
Volume and Issue:
65, P. 105793 - 105793
Published: July 18, 2024
Waste-derived
volatile
fatty
acids
(VFAs)
are
emerging
as
a
promising
sustainable
alternative
to
petroleum-derived
VFAs.
However,
the
post-treatment
of
waste-derived
VFAs
becomes
imperative
for
purpose
concentration,
purification,
and
fractionation.
This
study
delves
into
application
nanofiltration
process
post-processing
solubilized
VFAs,
focusing
on
comprehensive
exploration
influence
membrane
properties
feed
pH
efficiency.
Four
commercial
membranes,
with
molecular
weight
cut-off
ranging
from
150
500
Da
substantial
differences
in
zeta
potential,
were
tested
under
four
different
values
(4,
5.5,
7,
9),
constant
pressure
(20
bar)
controlled
temperature
±
1
°C).
The
VFAs'
rejection
mechanisms
investigated
by
analyzing
behavior
at
levels.
At
4,
all
membranes
achieved
low
(concentration
ratios
1.38
1.62)
associated
size
exclusion.
Transitioning
4
9,
electrostatic
repulsion
became
predominant,
leading
increased
(from
minimum
213
%
maximum
311
%,
sharp
increase
up
272
when
transitioning
followed
more
gradual
114
7
9)
decreased
permeability
(with
an
average
reduction
about
25
56
%).
Notably,
highest
concentration
obtained
was
40.1
g/L,
representing
4.4-times
over
feed.
These
findings
underscore
potential
implementing
efficient
post-processing,
emphasizing
importance
selection
operating
conditions
optimized
performance.
Industrial & Engineering Chemistry Research,
Journal Year:
2025,
Volume and Issue:
64(6), P. 3154 - 3167
Published: Jan. 30, 2025
In
the
present
study,
MIL-101(Fe)
and
MIL-101(Fe)-NH2
metal–organic
frameworks
(MOFs)
have
been
loaded
into
piperazine
aqueous
phase
(MAq
membranes)
trimesoyl
chloride
organic
(MOr
of
interfacial
polymerization
(IP)
solutions
to
fabricate
thin
film
nanocomposite
(TFN)
membranes.
The
performance
bare
composite
(TFC)
TFN
nanofiltration
membranes
was
investigated
for
removal
antidepressant
fluoxetine
hydrochloride
(FLX)
from
solutions.
optimized
membrane
evaluated
sertraline
hydrochloride,
paroxetine
nortriptyline
antidepressants
water.
results
showed
that
MOr
with
0.005
MOFs
achieved
highest
FLX
percentage
84.7%,
a
permeance
5.08
L
m–2
h–1
bar–1.
water
permeance,
FLX,
chemical
oxygen
demand
(COD),
total
carbon
(TOC)
efficiencies
wt
%
MOF-loaded
MAq
were
9.16
bar–1,
77.2%,
98.1%,
99.2%,
respectively.
efficiency
other
using
in
following
order:
(75.8%)
>
(73.1%)
(71.5%).
These
demonstrate
loading
low
concentration
negatively
charged
can
significantly
improve
their
pharmaceutical
wastewater.
Chemical Engineering Communications,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 35
Published: Jan. 7, 2025
The
escalating
prevalence
of
emerging
contaminants,
notably
pharmaceutical
and
personal
care
products
(PPCPs),
poses
a
significant
threat
to
global
freshwater
reservoirs,
environmental
equilibrium,
human
well-being.
Trace
amounts
these
micropollutants
persist
within
aquatic
environments,
posing
challenges
in
their
detection,
analysis,
wastewater
remediation
using
conventional
approaches.
Enhanced
tertiary
treatments
(ETTs),
encompassing
methods
such
as
adsorption
on
activated
carbon
(AAC),
advanced
oxidation
processes
(AOP),
membrane
separation
process
(MSP),
have
been
introduced
address
challenges.
This
review
underscores
the
pressing
necessity
for
economical
efficacious
alternatives,
with
particular
focus
polymeric
technology
membrane-based
treatment.
approach
demonstrates
cost-effectiveness,
facile
production,
excellent
pollutant
selectivity.
Furthermore,
paper
explores
viability
utilizing
agricultural
waste
an
alternative
adsorbent
material
adsorption-membrane
hybrid
systems.
Introducing
innovative
approach—adsorption-membrane
waste—this
advances
beyond
existing
literature.
By
leveraging
alongside
unique
attributes
adsorbents,
this
strategy
aims
enhance
efficacy
Noteworthy
its
comprehensive
exploration
precursors
derived
from
waste,
presents
novel
promising
avenue
treatment
advancement.
