Sustainability,
Год журнала:
2025,
Номер
17(7), С. 3247 - 3247
Опубликована: Апрель 5, 2025
Sustainable
recycling
of
carbon
resources
from
waste-activated
sludge
(WAS)
is
essential
for
advancing
the
circular
wastewater
economy.
Anaerobic
fermentation
provides
an
eco-efficient
pathway
converting
organic
matter
into
volatile
fatty
acids
(VFAs).
In
this
study,
Fe-N
modified
biochar
was
innovatively
prepared
WAS
acetic
acid
yield
enhancement,
and
system
realized
closure
material
cycle.
Results
show
that
adding
Fe-N-modified
(made
under
conditions
0.2M
FeCl3
10
g/L
urea)
led
to
a
38.8%
increase
in
(1745
mg/L)
5.7%
its
percentage
(60.5%)
compared
control.
It
also
improved
hydrolysis
hydrolase
activity.
addition,
increased
relative
abundance
Chloroflexi,
Actinobacteria,
Bacteroidetes,
among
which
Chloroflexi
electro-active
microorganism
promotes
transformation
propionic
butyric
acid,
while
Bacteroidetes
primary
responsible
VFA
production.
summary,
may
serve
as
effective
promoting
production
during
anaerobic
WAS.
