This
study
investigated
the
effect
of
alkaline
deep
eutectic
solvents
(DES)
pretreatment
on
CH4
yield
from
anaerobic
digestion
corn
stover.
The
results
batch
experiments
showed
that
cumulative
was
significantly
correlated
with
ethylene
glycol
(EG)
concentration,
time,
and
organic
loading
rate
(OLR).
After
Box-Behnken
Design
(BBD)
experimental
optimization,
increased
1.16
times
under
conditions
EG
=
0.4
v/v,
33.8
min,
22.2
w/v.
Trace
amounts
residues
in
solution
create
an
effective
acid-alkaline
balance
environment,
resulting
a
pH
range
6.5-7.5.
Thermogravimetric
analysis
DES
improved
degradation
cellulose
hemicellulose
DMER64
Methanobacterium
became
major
bacterial
archaeal
communities
40.2%
71.9%,
respectively.
Spearman
correlation
statistics
revealed
substrate
accessibility
promoted
hydrogen-based
CH4-producing
synergistic
metabolic
pathway.
Ultimately,
resulted
carbon
flow
20.5%
to
CH4.
process
effectively
improves
conversion
stover
into
clean
energy
reduces
negative
impact
agricultural
waste
environment.
Biofuels Bioproducts and Biorefining,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 26, 2024
Abstract
Limited
research
has
been
dedicated
to
exploring
the
potential
reuse
and
creation
of
value‐added
products
from
corn
stover.
Existing
gaps
in
current
underscore
need
for
waste
biorefineries
that
adhere
principles
a
circular
bioeconomy
maximize
value
This
review
uses
bibliometric
analysis
past
decade
examine
pathways
converting
stover
into
energy
within
biorefinery
framework.
The
data
were
processed
using
Web
Science®
database
analyzed
with
VosViewer®
software's,
Bibliometrix
package
R
Gephi,
generating
keyword‐based
maps.
A
total
2557
experimental
articles
30
reviews
on
analyzed.
study
revealed
primary
focuses
pretreatment
technologies
products,
bioenergy
biofuels.
main
employed
include
acid,
alkaline
enzymatic
hydrolysis,
as
well
torrefaction
anaerobic
digestion
steam
explosion.
processes
yield
sugars,
xylooligosaccharides
organic
acids.
Additionally,
studies
explored
use
biochar
soil
remediation
adsorption
processes.
aims
enhance
understanding
technological
previous
research,
contributing
evaluation
sustainable
utilizing
byproducts.
Ultimately,
it
promotes
environmentally
conscious
agroindustry
practices
align
economy
development.
