Agronomy,
Journal Year:
2024,
Volume and Issue:
14(9), P. 1898 - 1898
Published: Aug. 25, 2024
Biochar
application
has
received
much
attention
because
biochar
can
be
used
as
an
organic
amendment.
The
nutrient
release
patterns
and
interactions
in
straw
produced
at
different
temperatures
are
not
well
understood.
In
this
study,
we
observed
the
of
carbon
(C),
nitrogen
(N),
phosphorus
(P),
potassium
(K)
interaction
between
released
C,
N,
P,
K
from
prepared
225
to
600
°C
through
a
180-day
degradation
experiment.
results
showed
that
rate
two
kinds
was
faster
first
30
days
temperatures,
before
300
more
rapid,
indicating
is
important
turning
point.
rule
highest
most
rapid
than
60%
days.
rates
for
were
order
>
N
P
C.
nutrients
accompanied
decomposition
biochar,
there
exponential
relationship
amount
its
mass.
There
collaborative
or
similar
processes
indicated
by
significant
positive
correlations
C
(R2
=
0.96)
0.94)
tobacco
obvious
correlation
0.76)
rice
biochar.
These
have
synergistic
effects
same
path.
provide
source
short
term
long
term.
This
study
suggests
returning
soil
could
appropriately
reduce
input
fertilizer
early
stage.
Energies,
Journal Year:
2025,
Volume and Issue:
18(4), P. 948 - 948
Published: Feb. 16, 2025
This
study
investigated
the
production
of
high-performance
biochar
from
swine
manure
using
a
sequential
carbonization
process
combining
hydrothermal
(HTC)
and
pyrolysis.
Biochar
produced
through
HCl-assisted
exhibited
superior
properties,
including
highest
fixed
carbon
(70.0%),
higher
heating
value
(28.48
MJ/kg,
~18.8%
increase
over
HTC-Py),
BET
surface
area
(279.66
m2/g,
~17
times
than
other
biochars).
These
improvements
were
attributed
to
catalytic
role
HCl
in
promoting
dehydration,
hydrolysis,
decarboxylation,
leading
more
condensed
stabilized
structure.
Furthermore,
significantly
enhanced
heavy
metal
removal,
reducing
Zn
343.17
mg/kg
(compared
HTC-Py
1324.15
mg/kg)
lowering
Cd,
As,
Cu,
Pb,
Ni,
Cr
by
70–80%,
demonstrating
effective
demineralization.
approach
presents
practical
strategy
for
producing
high-quality
with
improved
carbonization,
energy
pollutant
offering
potential
applications
environmental
agricultural
fields.
