In
anaerobic
digestion
(AD)
research,
optimizing
methane
production
from
waste
activated
sludge
(WAS)
is
a
core
focus.
This
study
investigated
the
efficacy
and
mechanism
of
deep
eutectic
solvents
(DES)
as
pretreatment
agents
for
AD
systems
WAS.
Two
DESs
were
developed,
key
findings
included
significant
increases
in
production:
390%
choline
chloride-urea
(ChCl-Urea)
540%
chloride-ethylene
glycol
(ChCl-EG).
Results
showed
that
ChCl-Urea
mainly
disrupted
extracellular
polymeric
substances
(EPS)
structures,
aiding
initial
solubilization
during
pretreatment.
ChCl-EG,
instead,
induced
self-driven
organic
enhanced
hydrolysis
acidification
process.
Based
on
extent
to
which
two
promoted
production,
process
can
be
divided
into
stage
Ⅰ
Ⅱ.
Ⅰ,
ChCl-EG
methanogenesis
more
significantly.
this
stage,
both
enriched
acetotrophic
methanogens-Methanosarcina,
thereby
promoting
acetoclastic
methanogenesis.
Notably,
particularly
influenced
polysaccharide-related
metabolism,
whereas
targeted
protein-related
metabolism.
Ⅱ,
promotion
role
was
dominant.
bolstered
metabolism
by
methanogenic
archaea,
directly
boosting
Conversely,
genetic
information
processing
acidogenic
bacteria,
indirectly
amplifying
essence,
microbial
DES-enhanced
provided
reference
future
research.
Biochar,
Journal Year:
2023,
Volume and Issue:
5(1)
Published: Nov. 16, 2023
Abstract
Icing
of
wind
turbine
blades
will
seriously
hinder
the
development
power
industry,
and
use
biomass
resources
to
solve
icing
problem
is
conducive
promoting
synergistic
energy.
In
this
study,
ice-phobic
coatings
with
photothermal
anti-corrosion
properties
were
prepared
by
surface
modification
pyrolysis
hydrothermal
reaction
rice
straw
biogas
residue
as
raw
material.
The
erosion
KOH
MoS
2
produced
a
rough
structure
material,
high-temperature
promoted
dehydrogenation
decarboxylation
reactions,
which
reduced
number
oxygen-containing
functional
groups
decreased
energy
coating
has
superhydrophobic
contact
angle
158.32°.
Due
small
area
in
water,
was
able
significantly
reduce
adhesion
strength
53.23
kPa.
tunnel
test
results
showed
that
mass
10.54%
30.08%,
respectively,
when
speed
10
m
s
−1
temperature
−
°C.
Photothermal
performance
tests
-loaded
material
had
light
absorption
properties,
could
rapidly
warm
up
58.3
℃
under
xenon
lamp
irradiation
cycle
stability.
loading
acts
physical
barrier,
reducing
corrosive
media
substrate,
thus
improving
coating.
This
study
practical
application
value
significance
for
anti-icing
field
complex
environmental
conditions.
Graphical
Progress in Energy,
Journal Year:
2024,
Volume and Issue:
6(3), P. 032003 - 032003
Published: April 18, 2024
Abstract
Low-income
countries
(LICs)
have
long
benefitted
from
household
biogas
plants
for
the
extraction
of
clean
energy
and
fertilizers.
Despite
their
popularity,
such
ordinary
do
not
heating
systems
suffer
low
production
in
cold
regions
or
during
winter.
This
paper
presents
a
comprehensive
review
research
development
technology
climates.
specifically
highlights
influence
temperature
on
technologies,
as
well
recent
advances
psychrophilic
production.
These
measures
include
introduction
adapted
inocula,
maneuvering
operational
parameters
(such
hydraulic
retention
time
organic
loading
rate),
co-digestion
approach
additives,
digester
designs.
In
addition,
this
shows
that
adoption
low-cost
arrangements,
including
construction
greenhouse
over
biodigesters,
insulation,
integration
solar
heating,
is
crucial
enhancing
Furthermore,
identified
gaps
operation
biodigesters
under
LICs
recommends
consistencies
full-scale
through
standards,
guidelines,
user
training.
