Applied Sciences,
Journal Year:
2023,
Volume and Issue:
13(18), P. 10219 - 10219
Published: Sept. 12, 2023
An
economy
based
on
renewable
energy
sources
is
the
hallmark
of
responsible
companies.
Climate
policy
and
crisis
commitments
have
led
to
a
search
for
alternative
ways
produce
energy.
Bioenergy
considered
most
consistent
source
due
its
economic
environmental
benefits.
Biogas
biomethane
are
promising
forms
derived
from
widely
available
evergreen
raw
materials.
Agricultural,
animal,
industrial
food
wastes
excellent
substrates
used
clean
sustainable
in
circular
context.
Their
conversion
into
biogas
through
anaerobic
digestion
(AD)
process
an
efficient
solution
treatment
waste
different
origins.
The
production
use
favor
important
advantages,
such
as
reduction
greenhouse
gas
emissions
compared
with
those
deriving
conventional
fossil
fuels.
This
review
would
like
highlight
modern
trends
approaches
evaluate
processes
strategies
control
production.
In
particular,
livestock
reuse
by-product
fertilizer,
well
potential
development
prospects
improvement
optimization
sources,
discussed.
Energy Materials,
Journal Year:
2024,
Volume and Issue:
4(1)
Published: Jan. 16, 2024
Accelerants
can
enhance
methane
production
in
biomass
energy
systems.
Single-component
accelerants
cannot
satisfy
the
demands
of
anaerobic
co-digestion
(AcoD)
to
maximize
overall
performance.
In
this
work,
nitrogen-doped
bio-based
carbon
derived
from
coconut
shells,
containing
bimetallic
Ni/Fe
nanoparticles,
FeNi3
alloys,
and
compounds
(Fe2O3,
FeN,
Fe3O4),
was
constructed
as
hybrid
(Ni-N-C,
Fe-N-C,
Fe/Ni-N-C)
boost
CH4
CO2
reduction.
The
cumulative
biogas
yield
(553.65,
509.65,
587.76
mL/g
volatile
solids),
content
(63.58%,
57.90%,
67.39%),
total
chemical
oxygen
demand
degradation
rate
(60.15%,
54.92%,
65.38%)
AcoD
with
Ni-N-C
(2.625
g/L),
Fe-N-C
(3.500
Fe/Ni-N-C
g/L)
were
higher
than
control
(346.32
solids,
40.13%,
32.03%),
respectively.
These
digestates
Ni-N-C,
showed
excellent
stability
(mass
loss:
22.97%-32.75%)
nutrient
(4.43%-4.61%).
Based
on
synergistic
effects
different
components
accelerant,
an
understanding
enhanced
methanogenesis
illustrated.
Clean Energy,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 27, 2024
Abstract
Biogas
production
offers
numerous
advantages,
but
ongoing
research
and
development
are
essential
to
enhance
efficiency,
accelerate
production,
ensure
cost-effectiveness
as
a
sustainable
energy
source.
This
comprehensive
review
examines
the
anaerobic
digestion
process
of
cow
dung,
analyzing
critical
factors
such
reactor
type,
operating
conditions,
feedstock
pretreatment.
By
breaking
down
complex
organic
structures,
pretreatment
methods
thermal
chemical
treatments
significantly
increase
biogas
yields.
Additionally,
use
additives
trace
metal
nanoparticles
can
methane
making
more
efficient.
Also,
innovative
applications
for
facilities
discussed,
including
integrating
with
hydroponic
farming,
which
repurposes
nutrient-rich
byproducts
crop
growth,
using
waste
heat
generate
electricity.
Furthermore,
steam
reforming
pathway
hydrogen
increases
plants'
versatility.
The
findings
this
study
provide
actionable
strategies
optimize
utilize
promote
sustainability
reduce
reliance
on
fossil
fuels.
According
study,
taking
advantage
these
novel
approaches
will
maximize
benefits
contribute
transition
toward
greener
economy.
Energies,
Journal Year:
2023,
Volume and Issue:
16(11), P. 4396 - 4396
Published: May 29, 2023
Plant
biomass
can
be
used
in
many
directions
for
bioenergy
production.
Biogas
produced
from
a
most
diverse
group
of
substrates
compared
to
liquid
or
solid
biofuels.
The
choice
and
technologies
is
crucial
because
it
will
allow
getting
the
expected
results.
Not
without
significance
also
price
availability
substrates.
Therefore,
waste
residues
are
increasingly
being
used.
Accordingly,
aim
review
was
analyze
potential
biogas
production
agricultural
plant
effectiveness
using
this
feedstock
as
co-substrate
anaerobic
digestion.
In
article,
selected
collected,
their
advantages
disadvantages
described.
Moreover,
effective
technology
by
digestion
on
an
industrial
scale
calculations
obtain
methane
efficiency
included.
addition,
summarized
under
mesophilic
conditions
studied
researchers
shown.
On
basis
analyzed
results
research,
concluded
that
have
great
co-substrates
It
important
experimentally
determine
both
substrate,
representing
raw
material
gaseous
use
artificial
neural
networks
prediction
emission
future-proof
should
facilitate
management
plants.
cultivation
processing
materials
not
only
help
manage
rationally,
but
contribute
increase
renewable
energy
sources.
circular
economy
terms
produce
multi-faceted,
positive
impact
environment.
review,
numerous
Frontiers in Bioengineering and Biotechnology,
Journal Year:
2024,
Volume and Issue:
11
Published: Jan. 8, 2024
The
co-digestion
of
untreated
Napier
grass
(NG)
and
industrial
hydrolyzed
food
waste
(FW)
was
carried
out
in
the
batch
reactor
to
investigate
effect
substrate
ratios
on
biogas
production
performance.
Two-stage
anaerobic
digestion
performed
with
an
initial
concentration
5
g
VS
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: June 20, 2024
Municipal
solid
waste
compost,
the
circular
economy's
closed-loop
product
often
contains
excessive
amounts
of
toxic
heavy
metals,
leading
to
market
rejection
and
disposal
as
material.
To
address
this
issue,
study
develops
a
novel
approach
based
on:
(i)
utilizing
plant-based
biodegradable
chelating
agent,
L-glutamic
acid,
N,N-diacetic
acid
(GLDA)
remediate
metals
from
contaminated
MSW
(ii)
comparative
assessment
GLDA
removal
efficiency
at
optimal
conditions
with
conventional
nonbiodegradable
chelator
EDTA,
(iii)
enhanced
pre-
post-leaching
evaluate
mobility,
toxicity,
bioavailability
metals.
The
impact
treatment
variables,
such
concentration,
pH,
retention
time,
on
was
investigated.
process
optimized
using
response
surface
methodology
achieve
highest
effectiveness.
findings
indicated
that
under
(GLDA
concentration
150
mM,
pH
2.9,
time
for
120
min),
maximum
efficiencies
were
follows:
Cd-90.32%,
Cu-81.96%,
Pb-91.62%,
Zn-80.34%.
This
followed
pseudo-second-order
kinetic
equation.
Following
GLDA-assisted
leaching,
geochemical
fractions
studied
distribution
highlighted
Cd,
Cu,
Pb's
potential
remobilization
in
exchangeable
fractions,
while
Zn
displayed
integration
compost
matrix.
leaching
subsequent
illustrated
transformation
stability.
Therefore,
could
be
sustainable
alternative
industrial
applications
(agricultural
fertilizers
bioenergy)
social
benefits
(waste
reduction,
urban
landscaping,
carbon
sequestration)
it
has
controlled
environmental
footprints.
Hence,
proposed
remediation
strategy,
chemically
assisted
practical
option
extracting
thereby
boosting
economy.
Fermentation,
Journal Year:
2023,
Volume and Issue:
9(1), P. 73 - 73
Published: Jan. 16, 2023
Waste
valorization
is
an
important
strategy
to
reduce
environmental
pollution
and
dependency
on
petroleum-based
fuels.
In
this
regard,
utilization
of
food
waste
as
a
versatile
low-cost
resource
important.
Several
advanced
catalytic
methods
for
the
have
been
widely
investigated
production
liquid
biofuels.
Along
line,
chemical
catalysts
explored
synthesis
Chemo-catalysis
mainly
metal
based,
which
requires
harsh
process
conditions.
Alternatively,
biocatalysts
are
currently
being
result
several
advantages
such
mild
reaction
conditions,
recyclability,
selectivity
biodegradability.
work,
recent
biocatalytic
technologies
preparation
biofuels
through
discussed
thoroughly.
Lipases
employed
biodiesel
upgradation
bio-oil,
whereas
methane
mono-oxygenases
could
be
methanol
via
oxidation
generated
from
wastes.
Industrial
ethanol
using
bioconversion
success
story.
To
date,
there
has
no
specific
report
use
propanol
enzymes.
The
ABE
(Acetone–Butanol–Ethanol)
(using
suitable
microorganisms)
used
butanol
preparation,
where
vacuum
stripping
system
integrated
remove
broth
circumvent
inhibition.
hydrocarbon
fuels
fatty
acids
triglycerides
can
carried
out
enzymes,
carboxylic
acid
reductase
photodecarboxylase
(an
algal
photoenzyme).
Both
not
yet
applied
in
direct
Furthermore,
limitations
reported
methods,
societal
economic
aspects
fresh
perspective
subject,
along
with
examples,
described.
