Water,
Journal Year:
2024,
Volume and Issue:
16(22), P. 3224 - 3224
Published: Nov. 9, 2024
The
snow
melting
and
runoff
process
in
the
black
soil
area
of
Northeast
China
has
led
to
quality
degradation
farmland,
posing
a
threat
sustainable
agricultural
development.
To
investigate
regulatory
effect
tillage
layer
construction
on
infiltration
characteristics
snowmelt
water,
typical
was
selected
as
research
object.
Based
field
experiments,
four
protective
treatments
(CK:
control
treatment;
SB:
sub-soiling
BC:
biochar
regulation
SB
+
composite
treatment)
were
set
up,
evolution
physical
structure,
thawing
rate,
characteristics,
feedback
frozen
analyzed.
results
indicate
that
application
effectively
regulate
aggregate
particle
size
increase
total
porosity.
Among
them,
at
0–10
cm
layer,
mean
weight
diameter
(MWD)
values
under
SB,
BC,
BC
treatment
conditions
increased
by
6.25%,
16.67%,
19.35%,
respectively,
compared
CK
treatment.
Sub-soiling
increases
frequency
energy
exchange
between
environment,
while
enhances
heat
storage
performance
accelerates
rate
layers.
Therefore,
conditions,
maximum
freezing
21.92%,
5.67%,
25.12%
CK,
treatments,
respectively.
In
addition,
improved
penetration
water
into
layers,
significantly
enhancing
soil’s
ability
store
water.
Overall,
it
can
be
concluded
good
improvement
capacity
surface
enhance
overall
holding
capacity,
synergistic
deep
is
best.
These
have
important
guiding
significance
for
rational
system
model
utilization
efficiency
resources
areas.
Energy & Fuels,
Journal Year:
2024,
Volume and Issue:
38(10), P. 8437 - 8459
Published: April 29, 2024
Biomass
hydrothermal
liquefaction
(HTL)
is
a
conversion
technology
that
utilizes
high-temperature
and
high-pressure
conditions
to
convert
biomass
into
liquid
fuels
chemicals.
This
review
introduces
all
aspects
of
HTL
from
system
process
parameters
reaction
mechanism
pathways
product
control
methods.
First,
the
effects
key
such
as
composition,
moisture
content,
heating
rate,
temperature,
residence
time,
pressure
on
characteristics
were
discussed.
Next,
studies
typical
components
reviewed.
For
proteins,
lipids,
carbohydrates,
their
mechanisms
during
explored.
Understanding
can
help
deeply
understand
entire
process.
In
terms
catalytic
control,
properties
potential
application
values
main
product,
including
bio-oil,
aqueous
phase,
solid
gaseous
products,
analyzed,
methods
for
It
introduced
adding
additives
using
catalysts
improve
characteristics.
Finally,
challenges
technical
difficulties
faced
by
discussed,
future
development
direction
was
prospected.
Soil Use and Management,
Journal Year:
2024,
Volume and Issue:
40(1)
Published: Jan. 1, 2024
Abstract
Biochar
is
a
promising
candidate
for
the
sustainable
remediation
of
soils,
especially
those
contaminated
with
cationic
heavy
metals,
because
its
liming
effect
and
tunable
surface
functionality.
Despite
potential,
prior
studies
have
highlighted
biochar's
limitations
in
immobilizing
soil
oxyanions,
such
as
arsenic
(As)
antimony
(Sb),
particularly
short
term.
This
shotcoming
primarily
attributed
to
an
increase
pH
following
biochar
amendment,
factors
like
competition
phosphate.
In
this
study,
amendments
were
applied
three
soils
varying
levels
oxyanions
including
As
Sb,
cations
cadmium
(Cd)
lead
(Pb).
These
treatments
generally
resulted
short‐term
failure
oxyanion
immobilization.
However,
noteworthy
phenomenon
unfolded
over
2‐year
period,
where
biochars
gradually
transitioned
from
initial
mobilization
or
poor
immobilization
eventual
successful
(up
87.0%
100%
Sb).
Temporal
changes
Cd
Pb
differed
exhibiting
no
improvement
rates
time.
Potential
mechanisms
driving
process
investigated,
suggesting
decline
pH,
progressive
oxidation
carbon
fractions,
direct
adsorption
effects
contributing
factors.
study
sheds
light
on
temporal
shift
performance,
highlighting
gradual
efficacy
The
findings
offer
valuable
insights
into
dynamic
nature
capabilities.
