Energies,
Год журнала:
2025,
Номер
18(2), С. 338 - 338
Опубликована: Янв. 14, 2025
Agribusiness
ranks
second
as
the
sector
with
highest
greenhouse
gas
emissions
linked
to
methane,
constituting
a
crucial
challenge
for
global
sustainability.
Although
its
impact
on
climate
change
is
considerable,
small
rural
farmers
do
not
have
effective
technologies
manage
organic
waste
derived
from
their
daily
activities.
In
this
context,
anaerobic
digestion
an
innovative
solution
that
converts
into
biogas
and
biofertilizers,
promoting
sustainable
circular
approach.
However,
implementation
faces
significant
barriers
due
inadequate
designs
poor
operational
practices,
which
makes
adoption
difficult
in
areas.
This
applied
theoretical
research
seeks
overcome
these
by
improving
design
operation
of
small-scale
plants.
The
system
studied
operates
at
70%
capacity,
hydraulic
retention
time
20
days
feed
4
kg
matter.
substrates
considered
were
30%
bovine
manure,
achieving
average
production
63.75
L
CH4/kg
matter,
exceeded
usual
yields
biodigesters.
A
mathematical
model
was
created
case
study
R2
correlation
98%
pseudo-R2
89.5%,
evidencing
remarkable
predictive
capacity.
plant
efficient
sustainable,
it
presented
viable
farmers.
Fermentation,
Год журнала:
2023,
Номер
9(5), С. 436 - 436
Опубликована: Май 2, 2023
Anaerobic
digestion
of
animal
manure
results
in
the
production
renewable
energy
(biogas)
and
nutrient-rich
biofertilizer.
A
further
benefit
technology
is
decreased
greenhouse
gas
emissions
that
otherwise
occur
during
storage.
Since
makes
anaerobic
cost-efficient
advance
for
higher
methane
yields,
it
utmost
importance
to
find
strategies
improve
bottlenecks
such
as
degradation
lignocellulose,
e.g.,
cattle
manure,
or
circumvent
microbial
inhibition
by
ammonia
caused
nitrogen
compounds
in,
chicken,
duck,
swine
manure.
This
review
summarizes
characteristics
different
manures
provides
insight
into
underlying
mechanisms
causing
challenging
problems
with
process.
particular
focus
put
upon
retention
time
organic
loading
rate
high-ammonia
processes,
which
should
be
designed
optimized
support
microorganisms
tolerate
high
conditions,
syntrophic
acetate
oxidizing
bacteria
hydrogenotrophic
methanogens.
Furthermore,
operating
managements
used
stabilize
increase
yield
including
supporting
materials,
addition
trace
elements,
incorporation
removal
technologies,
are
summarized.
The
finalized
a
discussion
research
needed
outline
conceivable
operational
methods
process
instability
performance.
Energies,
Год журнала:
2025,
Номер
18(2), С. 338 - 338
Опубликована: Янв. 14, 2025
Agribusiness
ranks
second
as
the
sector
with
highest
greenhouse
gas
emissions
linked
to
methane,
constituting
a
crucial
challenge
for
global
sustainability.
Although
its
impact
on
climate
change
is
considerable,
small
rural
farmers
do
not
have
effective
technologies
manage
organic
waste
derived
from
their
daily
activities.
In
this
context,
anaerobic
digestion
an
innovative
solution
that
converts
into
biogas
and
biofertilizers,
promoting
sustainable
circular
approach.
However,
implementation
faces
significant
barriers
due
inadequate
designs
poor
operational
practices,
which
makes
adoption
difficult
in
areas.
This
applied
theoretical
research
seeks
overcome
these
by
improving
design
operation
of
small-scale
plants.
The
system
studied
operates
at
70%
capacity,
hydraulic
retention
time
20
days
feed
4
kg
matter.
substrates
considered
were
30%
bovine
manure,
achieving
average
production
63.75
L
CH4/kg
matter,
exceeded
usual
yields
biodigesters.
A
mathematical
model
was
created
case
study
R2
correlation
98%
pseudo-R2
89.5%,
evidencing
remarkable
predictive
capacity.
plant
efficient
sustainable,
it
presented
viable
farmers.
