Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Дек. 12, 2023
Abstract
This
study
investigates
the
effect
of
microwave
(MW)
treatment
on
disintegration
municipal
activated
sludge.
Sludge
samples
underwent
heating
at
a
targeted
temperature
90°C
for
35
minutes,
with
5-minute
retention
time.
Soluble
chemical
oxygen
demand
(sCOD),
sugars,
proteins,
nitrogen
(N),
and
phosphorus
(P)
exhibited
notable
increases
compared
to
untreated
samples.
Results
indicate
substantial
(42-45%)
rise
in
methane
production
during
anaerobic
digestion
process
disintegrated
sludge
counterpart
Methane
was
estimated
using
transference
model,
which
showed
best
fit
other
models.
Further
experimentation
involved
testing
digested
excess
soluble
ammonium
recovery
struvite
1.50/1/1
(Mg/N/P)
ratio.
The
findings
reveal
that
up
90.09%
90.43%
orthophosphate
ammonium,
respectively,
can
be
efficiently
removed
from
solution.
Despite
increased
output,
energy
recovered
insufficient
offset
electrical
used
by
MW.
Notably,
filter
resistance
performance
deteriorated
significantly,
increasing
1.64×10
14
m/kg
control
3.76×10
treated
Sustainable Environment Research,
Год журнала:
2024,
Номер
34(1)
Опубликована: Июнь 13, 2024
Abstract
The
Earth’s
energy
balance
produced
by
human
activity
is
the
main
factor
in
complex
relationship
between
greenhouse
gases
and
global
warming.
Taiwan
Environmental
Protection
Agency
reports
that
carbon
dioxide
makes
up
more
than
95%
of
Taiwan’s
most
recent
gas
emissions.
This
study
used
fluidized-bed
homogeneous
crystallization
(FBHC)
technology
to
recover
carbonate
a
simulated
CO
2
-enriched
flue
gas.
It
was
specifically
designed
determine
how
removal
efficiency
were
affected
surface
loading,
influence
source
calcium
ions,
interfering
substances.
Results
revealed
best
loading
at
55
kg
m
−
h
1
achieved
93%
84%
efficiency.
At
50
mg
L
sulfate
presence
compounds
tends
reduce
97%
91%
crystallization.
Regarding
X-ray
diffraction
data,
recovered
crystals
resembled
crystals.
has
been
demonstrated
can
be
using
FBHC
as
method
capture
storage.
