International Journal of Phytoremediation,
Journal Year:
2020,
Volume and Issue:
unknown, P. 1 - 18
Published: Nov. 11, 2020
Mining
activities
causes
heavy
metal
pollution
and
adversely
affect
the
ecological
safety
human
well-being.
Phytoremediation-biochar
synergy
can
effectively
remediate
mine
spoils
contaminated
with
metals
(HM).
A
review
which
focuses
exclusively
on
application
of
biochar
assisted
phytoremediation
in
HM
spoil
is
lacking.
Mechanisms
immobilization
by
biochar,
potential
plants
biomass
disposal
methods
has
also
been
reviewed.
Availability
feedstock
production
conditions,
optimization
rate,
techniques,
selection
suitable
hyperaccumulators
cost
bulk
are
key
to
a
successful
biochar-based
remediation
tailings
coalmine
spoil.
Presently,
herbs
shrubs
mostly
used
as
phytoremediators,
use
woody
trees
would
encourage
long-term
sequestration
reduce
disposal.
Also,
non-edible
prevent
from
entering
food
chain.
For
holistic
biochar-phytoremediation
technique,
incineration
pyrolysis
dispose
biomass.
From
economical
viewpoint,
environment
cost-benefit
analysis
should
be
considered
before
considering
feasibility
technology.HighlightsMass
scale
in-situ
economics
keys
issues.Biochar
for
spoils.Long
term
studies
using
needs
attention.Disposal
method.
International Materials Reviews,
Journal Year:
2021,
Volume and Issue:
67(2), P. 150 - 200
Published: May 7, 2021
Biochar
is
produced
as
a
charred
material
with
high
surface
area
and
abundant
functional
groups
by
pyrolysis,
which
refers
to
the
process
of
thermochemical
decomposition
organic
at
elevated
temperatures
in
absence
oxygen.
The
carbon
component
biochar
relatively
stable,
and,
hence,
was
originally
proposed
soil
amendment
store
soil.
has
multifunctional
values
that
include
use
it
for
following
purposes:
improve
health,
nutrient
microbial
carrier,
immobilising
agent
remediation
toxic
metals
contaminants
water,
catalyst
industrial
applications,
porous
mitigating
greenhouse
gas
emissions
odorous
compounds,
feed
supplement
animal
health
intake
efficiency
thus,
productivity.
This
article
provides
first
time
an
overview
unintended
consequences
applications.
Environmental Science & Technology,
Journal Year:
2023,
Volume and Issue:
57(31), P. 11357 - 11372
Published: July 26, 2023
Biochar,
a
carbon
(C)-rich
material
obtained
from
the
thermochemical
conversion
of
biomass
under
oxygen-limited
environments,
has
been
proposed
as
one
most
promising
materials
for
C
sequestration
and
climate
mitigation
in
soil.
The
contribution
biochar
hinges
not
only
on
its
fused
aromatic
structure
but
also
abiotic
biotic
reactions
with
soil
components
across
entire
life
cycle
environment.
For
instance,
minerals
microorganisms
can
deeply
participate
mineralization
or
complexation
labile
(soluble
easily
decomposable)
even
recalcitrant
fractions
biochar,
thereby
profoundly
affecting
cycling
Here
we
identify
five
key
issues
closely
related
to
application
review
outstanding
advances.
Specifically,
terms
use
pyrochar,
hydrochar,
stability
soil,
effect
flux
speciation
changes
emission
nitrogen-containing
greenhouse
gases
induced
by
production
application,
barriers
are
expounded.
By
elaborating
these
critical
issues,
discuss
challenges
knowledge
gaps
that
hinder
our
understanding
provide
outlooks
future
research
directions.
We
suggest
combining
mechanistic
biochar-to-soil
interactions
long-term
field
studies,
while
considering
influence
multiple
factors
processes,
is
essential
bridge
gaps.
Further,
standards
should
be
widely
implemented,
threshold
values
urgently
developed.
Also
needed
comprehensive
prospective
assessments
restricted
account
contributions
contamination
remediation,
quality
improvement,
vegetation
accurately
reflect
total
benefits
