Fermentation,
Journal Year:
2023,
Volume and Issue:
9(8), P. 755 - 755
Published: Aug. 13, 2023
Modern
society
is
characterised
by
its
outstanding
capacity
to
generate
waste.
Lignocellulosic
biomass
most
abundant
in
nature
and
biorenewable
contains
energy
sources
formed
via
biological
photosynthesis
from
the
available
atmospheric
carbon
dioxide,
water,
sunlight.
It
composed
of
cellulose,
hemicellulose,
lignin,
constituting
a
complex
polymer.
The
traditional
disposal
these
types
waste
associated
with
several
environmental
public
health
effects;
however,
they
could
be
harnessed
produce
value-added
products
clean
energy.
Moreover,
increase
population
industrialisation
have
caused
current
resources
continuously
exploited,
resulting
depletion
global
fuel
reservoirs.
overexploitation
has
negative
effects
such
as
climate
change,
exacerbating
greenhouse
gas
emissions.
In
quest
meet
world’s
future
needs
adequate
management
waste,
anaerobic
digestion
lignocellulosic
remained
focus,
attracting
great
interest
sustainable
alternative
fossil
resources.
However,
substrate
characteristics
offer
recalcitrance
process,
which
negatively
impacts
methane
yield.
Nevertheless,
biodigestibility
substrates
can
enhanced
through
chemical,
physical,
pretreatment
methods,
leading
improvement
biogas
yields.
Furthermore,
co-digestion
other
adding
specific
nutrients
trace
elements
or
inoculum
will
help
adjust
level
appropriate
for
efficient
increased
Environmental Research,
Journal Year:
2025,
Volume and Issue:
269, P. 120886 - 120886
Published: Jan. 17, 2025
This
work
evaluated
the
effect
of
zero-valent
iron
(ZVI)
particle
size
(150
μm-100
nm)
on
performance
food
waste
anaerobic
digestion
(AD)
under
various
acid
stress
conditions.
The
results
indicated
that
ZVI
significantly
improved
AD
performance,
ensuring
successful
CH4
production
even
high
stress.
However,
extent
this
promoting
was
highly
dependent
size.
Nano-scale
(nZVI)
demonstrated
superior
in
process
terms
yield
and
rate
compared
to
micro-scale
(mZVI).
Specifically,
nZVI
reactor
8.24-8.68%
higher
than
mZVI
reactor.
improvement
attributed
nZVI's
more
effective
up-regulatory
hydrolase
activity,
as
activities
protease
α-amylase
reactors
were
44.55%-48.54%
14.65%-77.52%
higher,
respectively,
those
reactors.
Furthermore,
methanogenic
lag
phase
maximum
41.64%-49.69%
shorter
9.71-37.69%
reactor,
respectively.
can
be
enhanced
activity
coenzyme
420,
Syntrophomonas
Methanosarcina,
thereby
accelerating
production.
Bioengineering,
Journal Year:
2023,
Volume and Issue:
10(9), P. 1084 - 1084
Published: Sept. 14, 2023
The
increasing
global
population
and
urbanization
have
led
to
a
pressing
need
for
effective
solutions
manage
the
organic
fraction
of
municipal
solid
waste
(OFMSW).
High-solids
anaerobic
digestion
(HS-AD)
has
garnered
attention
as
sustainable
technology
that
offers
reduced
water
demand
energy
consumption,
an
increased
biogas
production
rate.
However,
challenges
such
rheology
complexities
slow
mass
transfer
hinder
its
widespread
application.
To
address
these
limitations,
this
review
emphasizes
importance
process
optimization
enhancement
HS-AD,
summarizes
various
strategies
enhancing
in
field
HS-AD
OFMSW,
including
substrate
pretreatments,
mixing
strategies,
addition
biochar.
Additionally,
incorporation
innovative
reactor
designs,
pretreatment,
use
advanced
modeling
simulation
techniques,
novel
conductive
materials
be
investigated
future
studies
promote
better
coupling
between
methane
production.
This
provides
support
guidance
more
viable
solution
management
resource
recovery.
