The Canadian Journal of Chemical Engineering,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 17, 2024
Abstract
The
effects
of
micro‐mixer
pattern,
volumetric
flow
ratio,
capillary
length,
inner
diameter
capillary,
residence
time,
and
phenol
concentration
on
microfluidic
extraction
were
investigated.
results
indicated
that
the
performances
with
Y‐shape
joint
higher
than
T‐shape
joint.
smaller
could
improve
phenol.
inlet
in
aqueous
phase
had
slight
influence
extraction.
1.0
mm,
ratio
1:1,
length
2
m,
time
88.3
s
more
suitable
for
overall
mass
transfer
coefficient
reached
0.0036
−1
at
8.8
s.
efficiency
realized
99%
23.6
from
solution
depended
intermolecular
forces
hydrogen
bonds
between
MIBK
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: Sept. 20, 2023
Abstract
This
study
aimed
to
investigate
the
adsorption
mechanism
of
Pb
2+
in
wastewater
using
activated
carbon
derived
from
inexpensive
materials,
specifically
avocado,
bitter
orange,
and
walnut
leaves,
through
a
single-step
chemical
activation
process.
The
was
prepared
sulfuric
acid
as
an
activator,
with
particle
size
1
mm.
pyrolysis
reactor
(slow-pyrolysis)
operated
at
600
°C
for
90
min
nitrogen
flow
rate
5
L/min.
Batch
experiments
were
conducted
under
various
conditions
determine
optimal
dosage
(1.5
g/L),
equilibrium
contact
time
(180
min),
pH
(6.5).
focused
on
employing
cost-effective
highly
efficient
adsorbents,
namely
biochar
produced
tree
results
indicated
that
pseudo-second-order
kinetic
model
accurately
described
process,
while
Freundlich
isotherm
best
fit
experimental
data.
These
findings
suggest
leaves
can
serve
adsorbents
wide
range
applications.
Furthermore,
multiple
factors
evaluated
batch
mode,
including
duration,
pH,
adsorbent
dosage,
concentration
solution,
temperature.
maximum
capacities
found
be
60.46,
59.42,
58.48
mg/g,
respectively.
Thus,
this
highlights
effectiveness
economic
feasibility
pyrolysis-derived
low-cost
materials
removal
wastewater.
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: Nov. 12, 2023
Solvent
extraction
on
a
micro-scale
has
received
much
attention
due
to
its
advantages
in
recent
years.
The
purpose
of
this
research
is
compare
the
inlet
geometry
T
and
Y-shaped
microchannels.
In
research,
solvent
Crystal
Violet
(CV)
was
investigated
using
Di-(2-ethylhexyl)
phosphoric
acid
(D2EHPA)
extractor
hexane
Y
T-shaped
microchannels
with
lengths
4,
6,
8
cm.
effect
parameters
such
as
geometry,
length
(4-8
cm),
dye
solution
pH
(3-11),
flow
rate
(1-1.5
mL/h)
concentration
CV
(25-75
ppm)
investigated.
Results
showed
that
under
same
conditions,
microchannel
performance
better
than
microchannel.
phase,
rate,
concentration,
were
obtained
optimal
conditions
for
extraction,
10.9,
1.1
mL/h,
46.4
ppm,
7.6
cm,
respectively,
amount
case,
%
97/96
obtained.
