Advances in Hydrothermal Carbonization for Biomass Wastewater Valorization: Optimizing Nitrogen and Phosphorus Nutrient Management to Enhance Agricultural and Ecological Outcomes
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.
Язык: Английский
Hydrothermal Liquefaction for Biofuel Synthesis: Assessment of VFA (Volatile Fatty Acid) and FAME (Fatty Acid Methyl Ester) Profiles from Spent Coffee Grounds
Energies,
Год журнала:
2025,
Номер
18(8), С. 2094 - 2094
Опубликована: Апрель 18, 2025
Spent
coffee
grounds
(SCGs)
are
an
underutilized
biomass
resource
with
high
potential
for
renewable
energy
and
bioproduct
synthesis.
This
study
applies
hydrothermal
liquefaction
to
transform
SCGs
into
high-quality
biofuels
value-added
biochemicals.
Five
experiments
were
conducted
over
a
temperature
range
of
300
°C
380
°C,
highlighting
significant
temperature-dependent
shifts
in
product
composition.
Notably,
phenolic
compounds
peaked
at
1180.1
mg/L
before
declining
sharply,
while
chemical
oxygen
demand
(COD)
dropped
minimum
13,949.8
350
°C—a
that
also
maximized
hydrochar
yield
(26%)
achieved
heating
value
32.9
MJ/kg.
Plasma
chromatographic
analyses
showed
the
dynamic
behavior
volatile
fatty
acids
(VFAs)
acid
methyl
esters
(FAMEs);
maximum
levels
acetic
(540.7
mg/L),
formic
(67.8
propionic
(155.6
mg/L)
recorded
whereas
FAMEs
such
as
butyrate,
hexanoate,
undecanoate,
palmitate
increased
markedly
higher
temperatures
due
intensified
carboxylation
reactions.
These
results
denote
valorize
production
biomolecules,
expanding
conventional
sustainable
biofuel
pathways.
Язык: Английский