Agriculture,
Год журнала:
2025,
Номер
15(7), С. 728 - 728
Опубликована: Март 28, 2025
Anaerobic
digestion
is
an
important
technology
for
energy
recovery
from
organic
waste.
However,
methanogenesis
restricted
by
some
barriers,
such
as
the
low-speed
bottleneck
of
interspecies
electron
transfer
(IET),
low
hydrogen
partial
pressure
limitation,
trace
element
deficiency,
etc.,
resulting
in
poor
system
stability
and
methane
production.
Recently,
multiple
iron
accelerants
have
been
employed
to
overcome
above
challenges
proven
effective
enhancing
methanogenesis.
This
study
reviews
effects
(Fe0,
Fe3O4
magnetite,
Fe2O3
hematite,
salts
other
accelerants)
on
anaerobic
terms
production,
process
microbial
community
elaborates
mechanisms
mediating
direct
(DIET)
syntrophic
methanogenic
community,
strong
reducibility
promoting
methanogenesis,
provision
nutrient
elements
microorganisms,
etc.
The
potential
engineering
application
current
research
advances
regarding
environmental
impacts
are
also
summarized.
Although
exhibit
positive
digestion,
most
focuses
laboratory
small-scale
investigations,
its
large-scale
should
be
further
verified.
Future
focus
elucidating
developing
diverse
methods
different
types
systems,
optimizing
applications,
exploring
high-efficiency
strategies
accelerants.
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.
