Heliyon,
Год журнала:
2023,
Номер
9(9), С. e19781 - e19781
Опубликована: Сен. 1, 2023
The
main
purpose
of
wastewater
treatment
plant
(WWTP)
is
to
reduce
organic
and
inorganic
pollutants
meet
standards.
But
WWTPs
employing
up
flow
anaerobic
sludge
blanket
(UASB)
reactors
under
psychrophilic
temperature
are
currently
removing
about
55%
chemical
oxygen
demand
(COD)
70%
total
dissolved
solids
(TSS).
research
was
done
increase
the
efficiencies
UASB
reactor
working
conditions
through
optimization
operational
parameters
like
temperature,
loading
rate
(OLR),
pH
hydraulic
retention
time
(HRT).
Experimentation
carried
out
in
a
0.0486
m3
square-shaped
pilot-scale
reactor.
Experimental
design
response
surface
method
(RSM)
for
performance
enhancement
five
levels
central
composite
(CCD)
used.
optimized
obtained
from
CCD-RSM
were
as
follows:
21.58
°C,
OLR
2.99
kg
COD/m3.d,
HRT
4.37hrs
6.3.
Using
parameters,
tests
yielded
92.70%,
99.06%,
94.50%
COD,
TSS,
volatile
suspended
solid
(VSS)
respectively.
outlet
concentrations
alkalinity,
fatty
acids
(VFA),
found
be
lower
than
inlet
concentrations.
alkalinity
system
accepts
hydrogen
ion
released
by
taken
over
methanogensis
maintain
pH.
concentration
sulfate
increasing
due
inhabitation
sulfur-reducing
bacteria
an
condition
VFA
at
less
7.8.This
process
favors
production
CH4
H2S
gas.
In
general,
there
high
likelihood
improving
operating
optimizing
parameters.
Case Studies in Thermal Engineering,
Год журнала:
2023,
Номер
49, С. 103295 - 103295
Опубликована: Июль 20, 2023
Power
production
through
combustion
of
fuels
plays
a
vital
role
in
the
progress
nation.
In
liquid
fuels,
biodiesel
has
emerged
as
potential
replacement
fossil
fuel.
this
regard,
improvement
fuel
properties
or
adjustment
operating
parameters
can
improve
efficiency
and
lower
emission
for
run
diesel
engine.
current
study
focuses
on
use
novel
nano
blended
biodiesel,
prepared
by
blending
titanium
dioxide
particles
along
Eichhornia
Crassipes
biodiesel.
Three
different
blends
are
having
composition
50
ppm,
100
ppm
150
which
is
tested
four
stroke,
single
cylinder,
naturally
aspirated
water
cooled
engine
3.5
kW
rated
power
loading
conditions
performance,
emission,
evaluation.
Further,
at
same
conditions,
blend
injection
pressure
220
bar.
The
findings
suggests
that
brake
thermal
improves
emissions
lowers
with
addition
high
pressure.
maximum
1.01%
comparison
to
mode
been
found
bar
under
full
condition.
For
composition,
hydrocarbon
carbon
monoxide
were
minimum
60%
load.
Heliyon,
Год журнала:
2024,
Номер
10(5), С. e26395 - e26395
Опубликована: Фев. 19, 2024
It
is
precarious
to
scrutinize
the
impacts
of
operational
parameters
on
corrosion
when
choosing
materials
for
green
diesel
and
automotive
industries.
This
was
original
study
showcase
an
optimization
stratagem
abating
rates
(CRs)
parts
(APs)
explicitly
copper
brass
in
a
biodiesel
environment,
adopting
novel
Response
Surface
Methodology
(RSM)
Adaptive
Neuro-Fuzzy
Inference
System
(ANFIS).To
model
CRs,
RSM
ANFIS
were
utilized.
The
mechanical
properties
APs
inspected,
their
hardness
number
tensile
strength,
as
well
outward
morphologies.
optimal
CRs
0.01656
mpy
0.008189
at
B
3.91
biodiesel/diesel
blend
240.9-h
exposure.
had
higher
coefficient
determination
lower
values
root
mean
squared
errors
(RMSE),
average
error
(MAE),
absolute
deviation
(AAD)
compared
model;
this
authenticates
model's
superiority
predicting
brass.
strength
greater
than
that
copper,
while
latter
number.
information,
model,
correlations
can
assist
APS
mitigating
slaving
over
corrosiveness
utilizing
diesel.
