Water Science & Technology,
Год журнала:
2023,
Номер
89(1), С. 160 - 169
Опубликована: Дек. 23, 2023
Abstract
Using
a
batch
thermophilic
anaerobic
system
established
with
60
mL
serum
bottles,
the
mechanism
on
how
microbial
enrichments
obtained
from
magnetite-amended
paddy
soil
via
repeated
cultivation
affected
methane
production
acetate
was
investigated.
Magnetite-amended
(MAEs)
can
improve
rate
rather
than
yield.
Compared
magnetite-unamended
enrichments,
in
MAE
improved
by
50%,
concomitant
pronounced
electrochemical
response,
high
electron
transfer
capacity,
and
fast
degradation.
The
promoting
effects
might
be
ascribed
to
direct
interspecies
facilitated
magnetite,
where
magnetite
function
as
conduits
link
oxidizers
(Anaerolineaceae
Peptococcaceae)
methanogens
(Methanosarcinaceae).
findings
demonstrated
potential
application
of
for
boosting
methanogenic
performance
during
digestion.
Although
biochar
has
been
reported
to
promote
methane
generation
during
anaerobic
digestion,
modified
is
still
worth
studying
due
its
better
performance,
such
as
richer
oxygen-containing
functional
groups
and
pore
structure.
In
this
study,
using
food
waste
a
resource,
novel
humic
acids–anchored
was
prepared
via
hydrothermal
method
characterized
biochar.
By
detecting
production
other
key
indicators,
analyzed
the
impact
of
on
electron
transfer
ability
digestion.
addition,
analysis
microbial
communities
also
conducted.
The
results
showed
that
compared
with
control
group,
acid–anchored
increased
by
80.13%,
reached
112.38
mL/gVS.
electrochemical
measurements
demonstrated
addition
acid
branched
had
an
effective
effect
enhancing
ability.
Mechanistic
could
enrich
dominant
flora
hydrolase
activity.
This
study
revealed
role
acids
in
modifying
surfaces
provided
low–cost
for
promoting
