Environmental Technology & Innovation,
Journal Year:
2023,
Volume and Issue:
31, P. 103233 - 103233
Published: June 3, 2023
Anaerobic
digestion
(AD)
is
an
effective
bioconversion
technology
widely
used
to
treat
agricultural
waste
and
reduce
environmental
pollution.
Although
AD
has
been
commonly
applied
practical
social
needs,
low
yield
reactor
instability
limit
its
performance.
In
this
study,
potato,
rape,
wheat
straw
were
pyrolyzed
biochar
at
600
°C
added
a
batch
system
improve
biogas
yield.
Biochemical
methane
potential
test
was
assess
the
production.
The
results
showed
that
three
had
similar
efficiency
increased
cumulative
production
(35.45%–52.66%)
compared
with
in
control
group
(818.5
mL).
Potato
presented
highest
(1249.5
Significant
differences
microbial
communities
between
groups
noticed.
community
structure
significantly
related
properties.
addition
of
abundance
Methanobrevibacter
by
2–147
times.
This
study
provides
reference
for
application
promote
Environmental Chemistry Letters,
Journal Year:
2023,
Volume and Issue:
21(3), P. 1419 - 1476
Published: Feb. 24, 2023
Abstract
Climate
change
issues
are
calling
for
advanced
methods
to
produce
materials
and
fuels
in
a
carbon–neutral
circular
way.
For
instance,
biomass
pyrolysis
has
been
intensely
investigated
during
the
last
years.
Here
we
review
of
algal
lignocellulosic
with
focus
on
products
mechanisms,
oil
upgrading,
combining
anaerobic
digestion,
economy,
life
cycle
assessment.
Products
include
oil,
gas,
biochar.
Upgrading
techniques
comprise
hot
vapor
filtration,
solvent
addition,
emulsification,
esterification
transesterification,
hydrotreatment,
steam
reforming,
use
supercritical
fluids.
We
examined
economic
viability
terms
profitability,
internal
rate
return,
return
investment,
carbon
removal
service,
product
pricing,
net
present
value.
also
reviewed
20
recent
studies
found
that
method
highly
influenced
yield,
ranging
from
9.07
40.59%
10.1
41.25%
biochar,
11.93
28.16%
syngas.
Feedstock
type,
pyrolytic
temperature,
heating
rate,
reaction
retention
time
were
main
factors
controlling
distribution
products.
Pyrolysis
mechanisms
bond
breaking,
cracking,
polymerization
re-polymerization,
fragmentation.
Biochar
residual
forestry
could
sequester
2.74
tons
dioxide
equivalent
per
ton
biochar
when
applied
soil
thus
potential
remove
0.2–2.75
gigatons
atmospheric
annually.
The
generation
bio-oil
process
is
estimated
be
economically
feasible.
Biochar,
Journal Year:
2025,
Volume and Issue:
7(1)
Published: Jan. 14, 2025
Abstract
Over
the
past
10–15
years,
biochar
has
garnered
significant
global
attention
in
agriculture
and
environmental
science.
While
most
research
focused
on
benefits
of
application
soil
enhancement,
water
quality
improvement,
climate
change
mitigation,
potential
risks
associated
with
its
use
have
often
been
overlooked.
This
oversight
is
critical,
as
fate
contingent
upon
understanding
these
risks.
Once
released
into
environment,
can
interact
media,
potentially
releasing
pollutants
threatening
ecosystems.
Therefore,
it
essential
to
evaluate
unintended
health
during
production
select
appropriate
types
for
sustainable
development.
review
was
conducted
by
systematically
analyzing
synthesizing
relevant
studies
from
Web
Science,
focusing
recent
advancements
key
debates
field.
It
categorizes
endogenous
exogenous
based
source
carried
biochar.
The
analyzes
detail
impacts
raw
materials,
preparation
processes,
scenarios
Furthermore,
provides
a
thorough
overview
adverse
effects
animals,
plants,
microorganisms,
human
health,
elucidating
mechanisms
pollutant
release,
aging,
nano-effects
geochemical
processes
involving
Additionally,
this
summarizes
risk
assessment
methods
biochar,
providing
reference
safe
development
biochar-related
research.
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