Influencing Factors and Purification Performance of a Negative Ion Air Purifier for Indoor Ammonia Gas Removal
Buildings,
Год журнала:
2025,
Номер
15(2), С. 261 - 261
Опубликована: Янв. 17, 2025
The
negative
ion
air
purifier
(NIAP)
has
been
used
for
capturing
particulate
matter.
Nevertheless,
the
knowledge
on
its
effectiveness
in
removing
other
pollutants
such
as
ammonia
gas
remains
limited.
In
this
study,
effect
of
an
NIAP
indoor
removal
was
evaluated
through
a
series
experimental
studies.
applicability
and
different
influencing,
operating,
environmental
factors
performance
were
firstly
investigated
by
conducting
experiments.
Then,
order
to
understand
spatial
distribution
by-products,
field
measurements
gas,
ozone,
concentrations
real
bathroom
performed
cases
with
turned
off.
results
indicated
that
ions
effective
reducing
concentration.
operating
including
upstream
wind
speed,
degree
voltage,
initial
concentration
have
great
influences
efficiency
NIAP.
highest
can
reach
95.8%,
when
speed
0.8
m/s
voltage
at
gear
3
(3.0
kV).
purification
could
up
80%.
Язык: Английский
Review of research advances in microbial sterilization technologies and applications in the built environment
Journal of Environmental Sciences,
Год журнала:
2024,
Номер
154, С. 314 - 348
Опубликована: Окт. 22, 2024
Язык: Английский
Continuous Degradation of Formaldehyde by Using NaClO2‐SA/CMC‐Na Composite Microcapsules
ChemistrySelect,
Год журнала:
2024,
Номер
9(43)
Опубликована: Ноя. 1, 2024
Abstract
Sodium
chlorite
(NaClO
2
)
is
a
new
type
of
air
disinfectant,
which
can
oxidize
formaldehyde
into
carbon
dioxide
(CO
on
account
releasing
chlorine
(ClO
gas
under
acidic
condition.
Unfortunately,
NaClO
prone
to
moisture
absorption
and
decomposition
when
exposed
air.
In
this
paper,
was
microencapsulated
based
emulsion
crosslinking
method
for
improving
its
stability
controlled
release
properties.
Due
their
high
biocompatibility,
sodium
alginate
(SA)
carboxymethyl
cellulose
(CMC‐Na)
were
selected
as
the
wall
material
prepare
‐SA/CMC‐Na
composite
microcapsules.
The
results
showed
that
mean
particle
size
microcapsules
about
225
nm,
encapsulation
ratio
up
73.18%.
addition,
thermal
environmental
tolerance
are
improved
greatly
through
microencapsulating.
It
proved
by
degradation
testing
efficiency
using
resulted
samples
continue
increase
after
seven
days
in
pH
6.5
environment,
indicating
good
controlled‐release
performance.
Moreover,
30
µg/mL
solution
97.08%.
Meanwhile,
20
repetition
degradation,
still
continuously
degrade
gas.
Therefore,
reveal
prolonged
action
degradation.
Язык: Английский