Advances in Research and Technology of Hydrothermal Carbonization: Achievements and Future Directions
Agronomy,
Год журнала:
2024,
Номер
14(5), С. 955 - 955
Опубликована: Май 2, 2024
Hydrothermal
carbonization
(HTC)
has
emerged
as
a
pivotal
technology
in
the
battle
against
climate
change
and
fosters
circular
economies.
Operating
within
unique
reaction
environment
characterized
by
water
solvent
moderate
temperatures
at
self-generated
pressures,
HTC
efficiently
converts
biomass
residues
into
valuable
bio-based
products.
Despite
HTC’s
potential—from
management
of
challenging
wastes
to
synthesis
advanced
carbons
implementation
biorefineries—it
encounters
hurdles
transitioning
from
academic
exploration
industrial
implementation.
Gaps
persist,
general
comprehension
intricacies
difficulty
large-scale
integration
with
wastewater
treatments,
process
water,
absence
standardized
assessment
techniques
for
Addressing
these
challenges
demands
collaboration
bridge
many
scientific
sectors
touched
HTC.
Thus,
this
article
reviews
current
state
some
hot
topics
considered
crucial
development:
It
emphasizes
role
cornerstone
waste
biorefineries,
highlighting
potentialities
its
development.
In
particular,
it
surveys
fundamental
research
aspects,
delving
pathways,
predictive
models,
analytical
techniques,
modifications
while
exploring
technological
applications
challenges,
peculiar
focus
on
combined
HTC,
integration,
plant
energy
efficiency.
Язык: Английский
Lime-assisted hydrothermal humification and carbonization of sugar beet pulp: Unveiling the yield, quality, and phytotoxicity of products
Biofuel Research Journal,
Год журнала:
2024,
Номер
11(01), С. 2025 - 2039
Опубликована: Март 1, 2024
Hydrothermal
carbonization
(HTC)
solid
and
liquid
products
may
inhibit
seed
germination,
necessitating
post-treatment.
The
hydrothermal
humification
(HTH)
method
addresses
this
drawback
by
transforming
inhibitory
compounds,
such
as
aromatics,
into
artificial
humic
acids
(AHAs)
fulvic
(AFAs).
This
study
introduces
a
novel
approach
investigating
the
substitution
of
commonly
used
alkaline
agent
in
HTH,
KOH,
with
hydrated
lime
to
develop
cost-effective
fertilizers
from
sugar
beet
pulp,
enriching
them
AHAs.
It
assesses
effects
on
AHA
production
soluble
organic
compounds
compared
KOH.
results
indicate
that
significantly
reduces
furans
(from
560
3.15
mg/kg
DM
344
3.86
mg/L
process
liquid)
boosts
sugars
acids,
especially
lactic
acid
4.70
65.82
g/kg
4.05
22.89
liquid),
increasing
hydrochar
yield
(68.8%
vs.
27.4%
KOH).
Despite
lower
KOH
(3.47%
15.50%),
lime-treated
are
abundant
calcium
magnesium,
boasting
pH
7.
property
presents
safer
more
efficient
alternative
fertilizers.
characterization
AHAs
aligns
standard
natural
substances,
while
lime-assisted
HTH
products,
applied
at
level
0.01%
w/w,
could
enhance
wheat
growth
nutrient
uptake
control
group.
Importantly,
these
show
no
toxicity
Daphnia
magna,
underscoring
their
potential
for
sustainable
agriculture.
Язык: Английский
Efficient extraction and formation mechanism of fulvic acid from lignite: Experimental and DFT studies
Journal of Environmental Management,
Год журнала:
2024,
Номер
365, С. 121650 - 121650
Опубликована: Июль 4, 2024
Язык: Английский
Unlocking the Potential of Isopropanol as an Eco-Friendly Eluent for Large-Scale Fractionation of Fulvic Acids via Preparative Reversed-Phase High-Performance Liquid Chromatography and Multidimensional RP-HPLC: Evaluation of Molecular Diversity and Element Composition
Environmental Science & Technology,
Год журнала:
2024,
Номер
58(46), С. 20444 - 20456
Опубликована: Ноя. 7, 2024
Humic
substances
are
organic
mixtures
of
extreme
complexity,
which
significantly
complicate
their
analysis
by
any
method.
Fractionation
into
more
homogeneous
seems
to
be
almost
the
only
way
overcome
these
difficulties.
Preparative
high-performance
liquid
chromatography
(HPLC)
provides
amounts
required
for
both
further
fractionation
and
studies
other
methods.
For
first
time,
isopropyl
alcohol
(IPA)
is
proposed
purposes;
its
advantages
shown
example
groundwater
fulvic
acids
(FA).
IPA
much
safer
than
conventional
solvents
elutes
most
nonpolar
compounds
that
nonelutable
methanol
acetonitrile.
The
isolated
fractions
differ
in
molecular
composition,
confirmed
ultrahigh-resolution
mass
spectrometry
spectroscopy.
Stepwise
IPA-gradient
HPLC-UV
each
preparative
fraction
demonstrates
possibilities
multidimensional
HPLC
FA.
were
studied
contents
a
broad
range
elements,
relationships
between
trace-element
compositions
revealed.
Our
data
reveals
existence
numerous
different
organometal
FA
composition;
thus,
approach
can
used
in-depth
study
mechanisms
element
migration
environment.
Язык: Английский