Bioresource Technology,
Год журнала:
2023,
Номер
385, С. 129385 - 129385
Опубликована: Июнь 25, 2023
The
effect
of
hydraulic
retention
time
(HRT)
on
the
continuous
lactate-driven
dark
fermentation
(LD-DF)
food
waste
(FW)
was
investigated.
robustness
bioprocess
against
feast/famine
perturbations
also
explored.
stepwise
HRT
decrease
from
24
to
16
and
12
h
in
a
continuously
stirred
tank
fermenter
fed
with
simulated
restaurant
FW
impacted
hydrogen
production
rate
(HPR).
optimal
supported
HPR
4.2
L
H2/L-d.
Feast/famine
caused
by
12-h
feeding
interruptions
led
remarkable
peak
up
19.2
H2/L-d,
albeit
process
became
stable
at
4.3
H2/L-d
following
perturbation.
occurrence
LD-DF
throughout
operation
endorsed
metabolites
analysis.
Particularly,
correlated
positively
lactate
consumption
butyrate
production.
Overall,
highly
sensitive
but
resilient
transient
perturbations,
supporting
high-rate
HPRs
under
HRTs.
Fermentation,
Год журнала:
2025,
Номер
11(1), С. 19 - 19
Опубликована: Янв. 3, 2025
The
aim
of
this
review
is
to
provide
a
comprehensive
analysis
the
membrane-assisted
dark
fermentation
process
for
bioH2
production
and
purification.
This
initially
analyses
need
current
state
art
in
H2
through
fermentation,
evaluating
research
landscape
maturity
level
technology.
Key
factors
influencing
are
then
examined,
along
with
emerging
trends
fermentative
systems.
subsequently
addresses
challenges
inherent
explores
potential
opportunities
enhance
efficiency.
Special
attention
given
membrane
technology
as
promising
strategy
intensification
recovery.
Finally,
provides
an
in-depth
discussion
inorganic
membranes,
mixed
matrix
membranes
(MMMs),
thin
ultrathin
each
type
terms
its
advantages,
limitations,
purification
performance.
offers
valuable
insights
into
intensifying
by
leveraging
International Journal of Hydrogen Energy,
Год журнала:
2023,
Номер
49, С. 266 - 276
Опубликована: Авг. 16, 2023
In
the
challenge
of
mitigating
greenhouse
gases
produced
mainly
by
fossil
fuels,
recovery
agricultural
and
food
waste
to
produce
biohydrogen
dark
fermentation
is
considered
a
promising
source
for
future.
However,
industrial-scale
production
remains
challenging
several
parameters
significantly
influencing
application
technology
need
be
finely
tuned.
present
study,
an
evaluation
from
cassava
pineapple
waste,
widely
available
in
many
African
countries,
was
carried
out
using
different
microbial
consortia
originating
industrial
biogas
plants
Italy.
The
defined
both
screening
most
appropriate
inoculum
"centered
composite
design"
optimize
pretreatment
time
pH.
From
which
abundant
starch
(43%),
highest
hydrogen
levels
(62.32
mL
H2/gVS)
were
obtained
at
pH
7.72
adopting
4-h
heat
treated
anaerobic
digester
fed
with
corn
barley
silage.
Higher
yields
(75.50
achieved
6
once
pineapple,
has
high
content
hemicellulose,
converted
another
selected
inoculum,
isolated
olive
pomace
treating
plant,
where
hemicellulose
one
common
polysaccharide.
correlation
coefficients
R2
adjusted
are
close
unity,
proving
model
express
concentration
produced.
This
combined
approach
performed
successfully
represents
strong
strategy
residues
even
contexts.
Fuel,
Год журнала:
2023,
Номер
338, С. 127238 - 127238
Опубликована: Янв. 6, 2023
Notwithstanding
lactate-driven
dark
fermentation
(LD-DF)
can
cope
with
inhibition
issues
associated
the
over-proliferation
of
lactate
producers,
there
is
still
a
knowledge
gap
about
role
key
operational
parameters.
In
this
study,
effect
pH
and
total
solids
(TS)
content
on
co-production
hydrogen
carboxylic
acids,
including
medium-chain
acids
(MCCAs),
from
food
waste
(FW)
via
LD-DF
was
investigated.
A
series
batch
fermentations
conducted,
first,
without
control,
then
at
fixed
values
5.5,
6.0
6.5,
while
maintaining
constant
TS
5
%.
It
observed
that
higher
pH,
lower
accumulation
extent
rate
production,
sustaining
maximum
production
yield
81
NmL/g
VS
fed
9
NL/L-d,
respectively,
6.5.
second
tests,
adjusted
to
5,
7.5
10
%
set
The
highest
performance
(103
NmL/g-VS
13.3
NL/L-d)
achieved
TS,
which
also
resulted
in
MCCAs,
particularly
caproate,
an
titer
8.7
g/L.
Hydrogen
plateaued
exhaustion
regardless
condition
tested.
Further
assessment
through
biochemical
methane
potential
tests
showed
effluents
be
alternatively
valorised
into
biogas.
Overall,
results
obtained
confirmed
FW
suggested
non-conventional
route
may
alternative
approach
flux
diverted
toward
undesirable
non-hydrogen-producing
metabolic
pathways.
Waste,
Год журнала:
2024,
Номер
2(3), С. 258 - 278
Опубликована: Июль 27, 2024
This
review
aims
to
streamline
the
approach
assessing
most
used
valorization
methods
for
fruit
and
vegetable
waste
(FVW)
that
are
eco-friendly,
cost-effective,
sustainable
within
a
circular
economy
framework.
Green
processing
technologies
extraction
of
bioactive
compounds
from
FVW,
their
applications,
technico-economical
assessment
FVW’
biorefinery
support
highlighted.
Important
value-added
products
generated
by
FVW
include
compounds,
pectin,
protein
isolates,
such
as
soy,
natural
pigments
anthocyanins,
quinones,
carotenoids,
betalains,
chlorophyll.
At
this
time,
prospects
using
have
increased
in
food
supplements,
edible
packaging,
agriculture,
energy,
water
purification
fields.
The
findings
report
proper
management
not
only
minimizes
addition
landfills
absence
composting,
but
also
promotes
efficient
utilization
resources
development
innovative
materials
with
wide
range
beneficial
applications.
Implementing
possible
solutions
described
paper
would
reduce
environmental
impact,
open
up
new
economic
opportunities
through
FVW.
Bioresource Technology,
Год журнала:
2024,
Номер
403, С. 130846 - 130846
Опубликована: Май 15, 2024
This
study
evaluated
the
hydrogen
production
potential
through
lactate-driven
dark
fermentation
(LD-DF)
of
organic
wastes
from
solid
waste
treatment
plants,
including
fraction
municipal
(OFMSW),
mixed
sewage
sludge,
and
two
OFMSW
leachates.
In
initial
batch
fermentations,
only
supported
a
significant
yield
(70.1
±
7.7
NmL-H
