This
study
innovatively
introduced
two
deep
eutectic
solvents
(DES),
ChCl/oxalic
acid
(CO)
and
ChCl/ethylene
glycol
(CE),
into
a
34-day
co-composting
process
of
distillery
sludge
(DS)
distiller's
grains
waste
(DGW)
to
address
ammonia
emissions
challenges.
The
addition
DES
increased
dissolved
organic
carbon
by
67.60%
91.63%,
offering
more
utilizable
for
microorganisms.
SYTO9/PI
staining
enzyme
activity
tests
showed
CE
had
higher
bacterial
metabolic
levels
during
the
thermophilic
phase
than
control
(CK).
Bacterial
community
analysis
revealed
that
early
dominance
Lactobacillus
Lysinibacillus
in
accelerated
onset
phase,
reduced
pile
pH,
significantly
decreased
urease
production
reducing
Ureibacillus.
Consequently,
treatment
led
substantial
drop
73.43%
nitrogen
loss
53.84%,
compared
CK.
Besides,
fostered
abundant
functional
microbial
cooling
maturation
phases,
enhancing
degradation
humification
matter.
