Water,
Год журнала:
2025,
Номер
17(6), С. 800 - 800
Опубликована: Март 11, 2025
This
study
presents
a
novel
approach
that
integrates
hydrothermal
carbonization
(HTC)
technology
with
circular
economy
principles
to
optimize
the
management
of
nitrogen
and
phosphorus
in
agricultural
wastewater.
Given
increasing
global
resource
scarcity
continuous
ecological
degradation,
valorization
biomass
wastewater
has
become
critical
pathway
for
promotion
sustainable
development.
Biomass
wastewater,
which
contains
crop
residues,
forestry
leftovers,
food
processing
byproducts,
long
been
regarded
as
useless
waste.
However,
this
abundant
organic
matter
possesses
significant
renewable
energy
potential.
The
can
significantly
reduce
environmental
pollution.
Through
optimization
HTC
process
parameters,
we
achieved
an
improvement
quality
yield
carbonized
products,
facilitating
efficient
recycling
utilization
resources.
research
demonstrates
transform
into
valuable
biofertilizers,
energy,
feed,
while
simultaneously
reducing
reliance
on
fossil
fuels,
decreasing
greenhouse
gas
emissions,
mitigating
impact
activities.
paper
provides
comprehensive
exploration
application
ecosystems,
highlighting
its
beneficial
role
management,
efficiency,
pollution
reduction.
findings
suggest
holds
potential
optimizing
treatment,
promoting
recycling,
advancing
Furthermore,
offers
theoretical
support
practical
guidance
implementation
is
paramount
importance
fostering
economic
development
achieving
agriculture.
International Journal of Green Energy,
Год журнала:
2024,
Номер
unknown, С. 1 - 18
Опубликована: Ноя. 17, 2024
Using
effective
green
heterogeneous
catalysts
to
produce
biodiesel
from
inexpensive
non-food
oils
is
vital
for
reducing
reliance
on
fossil
fuels,
meeting
increasing
global
energy
demands,
and
supporting
carbon
neutrality.
This
study
explores
the
use
of
a
sulfonated
lignin-based
aerogel
catalyst
production
waste
vegetable
oil
(WVO).
The
catalyst,
prepared
via
sol–gel
method
followed
by
carbonization
sulfonation
exhibited
specific
surface
area
78.16
m2/g
-SO₃H
group
density
2.81
±
0.14
mmol/g,
which
served
as
primary
active
sites.
Under
optimal
conditions;
10
wt%
loading,
45:1
methanol-to-WVO
molar
ratio,
65°C
reaction
temperature,
5-hr
time,
achieved
maximum
conversion
93.3%
yield
88.51%.
However,
decline
in
performance
was
observed
over
repeated
cycles,
with
dropping
51.68%
fourth
cycle,
attributed
leaching
groups
reduction
44.13
m2/g.
decrease
sulfonic
1.03
0.11
mmol
SO₃H
g−
1
indicated
loss
sites,
highlighting
need
improve
sites'
stability
catalyst's
structural
integrity.
produced
met
ASTM
D6751
EN
14,214
standards,
demonstrating
effectiveness
sustainable
production.
