ACS ES&T Water,
Год журнала:
2024,
Номер
4(2), С. 520 - 530
Опубликована: Янв. 12, 2024
Nano
magnetite
has
been
reported
to
enhance
the
syntrophic
metabolism
of
anaerobic
digestion
by
serving
as
an
electron
bridge
between
microorganisms.
However,
underlying
mechanism
is
not
fully
understood.
We
hypothesized
that
nano
might
regulate
intracellular
bifurcation
drive
reduction
ferredoxin
(E
=
−500
mV)
via
a
thermodynamically
favorable
reaction
store
energy
makes
systems
more
effective.
Results
this
study
show
addition
digester
improved
methane
production
under
high
influent
COD
concentration.
Metagenomic
analysis
revealed
abundance
subunits
enzymes
MvhADG-HdrABC
and
HdrA2B2C2
was
higher
than
without
magnetite.
Metaproteomic
tests
showed
contents
HS–CoM
HS–CoB
associated
with
during
methanogenesis
increased
30.2%
156.5%
As
result,
ATP
indirectly
driven
increase
41.2%,
total
hydrogenotrophic
methanogens
containing
aceticlastic
also
increased.
These
findings
suggest
improve
respond
load
shock
storing
energy.
