Praci Institutu elektrodinamiki Nacionalanoi akademii nauk Ukraini,
Год журнала:
2024,
Номер
2024(69), С. 72 - 82
Опубликована: Ноя. 27, 2024
The
use
of
pulsed
dielectric
barrier
discharge
(DBD)
for
water
purification
via
low-temperature
plasma
(LTP)
is
a
promising
technology.
DBD
enables
the
in
droplet-film
state
from
organic
contaminants
by
generating
highly
reactive
molecules
(OH
radicals,
O,
H2O2,
and
O3
molecules)
produced
LTP
upon
contact
with
water.
A
two-dimensional
model
was
developed
to
calculate
electrostatic
field
chamber
(DC),
which
includes
two
electrodes,
barrier,
droplets
or
streams
air
gap,
films.
employs
Laplace’s
equation
periodic
boundary
conditions.
Expressions
were
proposed
determining
length
symmetric
part
DC
setting
voltage
on
electrodes
constant
droplet
surface
area
average
electric
intensity
independent
radius.
study
investigates
dependence
energy
capacitance
radius
their
mutual
positioning
along
length.
Changes
electrode
density
per
unit
relative
are
demonstrated.
An
analysis
distribution,
capacitance,
stored
conducted.
surfaces
films
examined.
forces
acting
determined
using
Maxwell's
stress
tensor.
expression
derived
calculating
recommended
amount
form
dimensions
achieve
more
uniform
distribution
within
minimize
impact
droplets.
Ref.
18,
fig.
7.
Environmental Science and Ecotechnology,
Год журнала:
2023,
Номер
18, С. 100329 - 100329
Опубликована: Окт. 2, 2023
Advanced
oxidation
processes
(AOPs)
utilizing
persulfate
(PS)
offer
great
potential
for
wastewater
treatment.
Yet,
the
dependency
on
energy
and
chemical-intensive
activation
techniques,
such
as
ultraviolet
radiation
transition
metal
ions,
constrains
their
widespread
adoption.
Recognizing
this
limitation,
researchers
are
turning
towards
piezoelectric
effect-a
novel,
energy-efficient
method
PS
that
capitalizes
innate
characteristics
of
materials.
Intriguingly,
taps
into
weak
renewable
mechanical
forces
omnipresent
in
nature,
ranging
from
wind,
tides,
water
flow,
sound,
atmospheric
forces.
In
perspective,
we
delve
burgeoning
realm
piezoelectric/PS-AOPs,
elucidating
its
fundamental
principles,
refinement
materials,
force
sources,
pertinent
application
contexts.
This
emerging
technology
harbors
significant
a
pivotal
element
pretreatment
may
spearhead
innovations
future
pollution
control
engineering.
Abstract
Environmental
pollution
caused
by
persistent
organic
pollutants
has
imposed
big
threats
to
the
health
of
human
and
ecological
systems.
The
development
efficient
methods
effectively
degrade
remove
these
is
therefore
paramount
importance.
Photocatalytic
persulfate‐based
advanced
oxidation
technologies
(PS‐AOTs),
which
depend
on
highly
reactive
SO
4
−
radicals
generated
activation
PS
pollutants,
have
shown
great
promise.
This
work
discusses
application
modification
strategies
common
photocatalysts
in
photocatalytic
PS‐AOTs,
compares
degradation
performance
different
catalysts
for
pollutants.
Furthermore,
essential
elements
impacting
PS‐AOTs
are
discussed,
including
water
matrix,
reaction
process
mechanism,
pollutant
pathway,
singlet
oxygen
generation,
potential
hazards.
Finally,
existing
issues
future
challenges
summarized
prospected
encourage
their
practical
application.
In
particular,
providing
new
insights
into
this
review
sheds
light
opportunities
with
features
will
be
interests
promote
better
fundamental
understanding
applications.
