Borneo AKademika,
Journal Year:
2023,
Volume and Issue:
7(2), P. 70 - 76
Published: Dec. 1, 2023
Phosphorus
(P)
is
considered
a
limited
and
non-renewable
mineral
source
that
essential
in
our
daily
lives,
especially
for
the
agricultural
industry
to
produce
fertilizer.
Food
Waste
(FW),
Palm
Oil
Mill
Effluent
Sludge
(POMES),
Water
Treatment
(WTS)
are
wastes
claimed
contain
nutrients
such
as
P.
One
of
methods
can
be
used
recover
P
through
Anaerobic
Mesophilic
Digestion
(AMD)
technique.
Therefore,
this
study
was
carried
out
investigate
highest
recovery
time
digestion
from
single
mixing
substrates.
The
physicochemical
biological
properties
raw
FW,
POMES,
WTS
were
determined,
it
reported
suitable
undergo
AMD
process.
conditions
350C
(±1)
appropriate
anaerobic
bacteria
(AB)
reproduce
grow.
Results
substrates
found
POMES
recovered
with
57.88%
(±1.24),
optimum
at
day
12.
While
FW
31.94%
(±0.76)
26.47%
(±1.51),
respectively,
times
both
days
18
(FW)
21
(WTS),
which
longer
than
POMES.
In
substrates,
FW-POMES
contributed
value
68.34%
(±1.49),
on
9.
Followed
by
WTS-POME,
FW-WTS,
FW-POMES-WTS
values
60.42%
(±2.12)
(day
15),
48.05%
(±2.51)
8),
20.85%
(±1.33)
3),
respectively.
better
synergetic
effect
within
could
eventually
influence
removal
substrate
short
period
time.
Moreover,
also
provides
information
new
strategies
recovering
Keyword(s)
:
recovery,
Waste;
Sludge;
Energies,
Journal Year:
2024,
Volume and Issue:
17(11), P. 2679 - 2679
Published: May 31, 2024
The
European
Union’s
energy
policy
favors
increasing
the
share
of
renewable
in
total
production.
In
this
context,
co-digestion
various
waste
streams
seems
an
interesting
option.
This
study
aimed
to
determine
effect
selected
pretreatment
methods
on
efficiency
and
kinetics
process
poultry
manure
with
sewage
sludge
organic
waste.
research
was
carried
out
four
stages:
(1)
selection
third
component
mixture;
(2)
determination
most
favorable
inoculum-to-substrate
ratio
for
(3)
parameters
based
changes
volatile
fatty
acids,
ammonium
nitrogen,
extracellular
polymers
substances
(EPS)
non-purgeable
carbon
(NPOC);
(4)
evaluation
anaerobic
result
BMP
tests
kinetic
studies.
All
increased
degree
matter
liquefaction
as
measured
by
NPOC
changes.
Waste
a
high
fat
content
showed
highest
methane
potential.
addition
grease
trap
feedstock
yield
from
320
mL/g
VSadd
340
VSadd.
An
optimal
2.
methods,
especially
thermochemical
one
NaOH,
yield,
which
501
(trial
4.5
g/L
NaoH).
Fermentation,
Journal Year:
2023,
Volume and Issue:
9(10), P. 902 - 902
Published: Oct. 10, 2023
Our
study
aimed
to
investigate
the
applicability
of
dielectric
measurements
across
three
key
stages
plant-based
biomass
utilization:
enzymatic
hydrolysis
native
and
microwave
pre-processed
corn-cob
residues,
ethanol
fermentation
hydrolysates,
anaerobic
co-digestion
with
meat-industry
wastewater
sludge.
major
findings
reveal
that
pre-treatment
not
only
accelerates
but
also
improves
sugar
yield.
A
strong
linear
correlation
(r
=
0.987–0.979;
R2
0.974–0.978)
was
observed
between
constant
concentrations,
offering
a
reliable
monitoring
mechanism.
During
fermentation,
pre-treated
samples
resulted
in
higher
yields;
however,
overall
bioconversion
efficiency
lower.
Dielectric
exhibited
0.989–0.997;
0.979–0.993)
concentration.
Finally,
could
be
effectively
monitored
through
measurement
constants
0.981–0.996;
0.963–0.993),
microwave-treated
showing
biogas
yields.
These
results
demonstrate
provide
promising
alternative
for
controlling
utilization
processes.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 23, 2024
Abstract
Coffee
husk
(CH)
and
water
hyacinth
(WH)
are
seen
as
environmental
challenges
causing
eutrophication
of
streams
infestation
bodies.
These
biomass
resources,
available
in
plenty
with
high
organic
content
can
be
considered
for
anaerobic
digestion.
However,
their
lignin
poses
a
challenge
to
biodegradability
which
case
co-digestion
easily
degradable
food
waste
(FW)
could
alleviate
this
problem.
Thus,
the
synergistic
effect
CH
WH
employing
increasing
FW
levels
on
biogas
yield,
(BDfpc),
biodegradation
rate
(ηBD)
were
investigated
work.
Experimental
studies
conducted
varied
mixtures
CH/WH/FW
(100:0:0,
0:100:0,
35:35:30,
30:30:40,
25:25:50,
20:20:60
0:0:100)
at
constant
temperature
(38
±
1°C).
The
results
indicated
that
addition
significantly
enhanced
digestion
performance,
maximum
yield
572.60
ml/gVS,
highest
BDfpc
89.22%
ηBD
57.82%
obtained
mix
ratio
was
improved
by
194.98%
compared
mono-digestion.
tests
exhibited
strong
synergy
due
nutritional
balance
other
interactive
effects
promoting
stability.
Maximum
1.72
20:20:60.
modified
Gompertz,
logistic,
first-order
kinetic
models
used
simulate
experimental
data
portray
kinetics
involved.
logistic
equation
best
fit
elucidate
production.
current
findings
highlighted
importance
biodegradable
fractions
lignocellulosic
biodegradability.
Journal of Ecological Engineering,
Journal Year:
2024,
Volume and Issue:
25(6), P. 334 - 349
Published: May 4, 2024
Utilization
of
empty
fruit
bunches
(EFB)
to
increase
biogas
production
could
be
developed
through
co-digestion
palm
oil
mill
effluent
(POME).Pre-treatment
EFB
(shredding,
grinding,
and
soaking)
before
it
is
utilized
as
a
feedstock
for
important
the
biodegradability
EFB.The
evaluation
impact
utilization
on
should
investigated
determine
optimum
process
conditions
from
POME.This
research
consists
three
steps:
1)
Optimization
size
ratio
EFB-POME,
2)
hydrolysis
acidification
retention
time,
3)
production.The
result
shows
that
POME
increases
methane
production.Compared
only,
using
(shredded
10%,
shredded
15%,
crushed
15%)
increasing
in
batch
systems
by
54.1%,
45.5%,
75.2%,
respectively.The
also
continuous
system
with
HRT
25
days
similar
feedstock,
increased
43.3%,
41.6%,
35.6%,
62.6%,
respectively,
concentrations
maintained
at
about
60%.Co-digestion
EFB-POME
15%
recommended
applied
mills
production.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 30, 2024
Abstract
This
study
investigated
the
effect
of
harvesting
time
and
using
co-digesting
strategy
on
digestibility
Phragmites
australis
biomass
methane
production.
The
P.
harvested
from
summer,
autumn,
winter
was
digested
singly
(mono-digestion)
combined
with
synthetic
food
waste
(co-digestion)
at
an
inoculum
to
substrate
ratio
1:1
based
volatile
solid
content
under
mesophilic
conditions
(37
±
1°C).
results
found
that
cumulative
production
low
during
mono-digestion
(36.26
4.48,
35.59
3.08,
34.90
4.40
mL/g
VS
added,
respectively)
due
lignin
biodigestibility
australis.
issue
addressed
by
co-digestion
these
three
seasons
waste,
which
resulted
in
increase
a
(135.66
1.14,
137.33
3.21,
123.94
1.01
respectively).
Applied Sciences,
Journal Year:
2024,
Volume and Issue:
14(21), P. 9880 - 9880
Published: Oct. 29, 2024
The
current
investigation
explores
biogas
production
from
water
hyacinth
(WH)
and
fish
waste
(FW)
with
cow
dung
(CD)
as
an
inoculum
source
in
two
scenarios.
In
the
first
scenario,
optimization
of
mono-digestion
was
performed
where
effect
WH/FW
(substrates)
CD
(inoculum)
varied
ratios
1:1,
1:2,
2:1,
3:1
observed
to
enhance
production.
second
co-digestion
using
both
FW
WH
substrates
different
(1:1,
2:1)
a
fixed
amount
studied.
experiments
were
conducted
500
mL
digesters
duplicate
under
mesophilic
conditions.
Under
conditions
for
FW,
digester
operating
FW/CD
1:2
ratio
demonstrated
highest
yield
970
±
14.1
mL/g
VS,
containing
610
CH4
while
WH,
WH/CD
1:1
exhibited
925
49.4
methane
content
440
VS.
(1:1)
showcased
1655
91.92
accompanied
by
890
70.7
This
followed
2:1
ratio,
yielding
1400
56.5
1140
169.7
775
585
respectively.
mixture
at
most
significant
decrease
chemical
oxygen
demand
(COD),
reaching
91.68%.
COD
reductions
over
80%
all
combinations
instances.
Anaerobic
digestion
(AD)
simulations
validated
Gompertz
model,
high
correlation
coefficient
values
(R-squared)
above
0.99
studied
ratios,
depicting
between
experimental
data
model
predictions.
propionic
acetic
acid
did
not
cross
threshold
level,
indicating
no
inhibition
ANOVA
analysis
showed
non-significant
results
(p
>
0.310
p
0.824,
respectively),
overall
<
0.024),
efficiency
variations
among
substrates.
Paired
sample
t-tests
revealed
substantial
differences
which
also
significant.