Journal of Hazardous Materials,
Journal Year:
2020,
Volume and Issue:
400, P. 123144 - 123144
Published: June 12, 2020
The
total
and
available
(water
extracted)
content
of
selected
metal
were
determined
in
co-pyrolyzed
SSL
with
willow
(8:2,
6:2
w/w)
at
500,
600,
700
°C
using
two
different
carrier
gases
(N2
or
CO2).
study
investigated
the
relationship
bioavailability
to
toxicity
biochars
towards
bacteria
(Vibrio
fischeri),
plants
(Lepidium
sativum),
arthropods
(Folsomia
candida).
For
biochar
produced
a
ratio
6:4
(SSL:willow),
most
metals
significant
decrease
(P
≤
0.05)
from
5.9%
28.9%.
Co-pyrolysis
decreased
water
extractable
concentrations
(Ba,
Cd,
Cu,
Fe,
Mn,
Ni,
Zn)
8.0%
100%.
CO2
resulted
6
200
%
increase
relative
pyrolyzed
N2.
An
pyrolysis
temperature
caused
higher
concentration
biochars.
9
100
%.
adverse
effect
these
on
living
organisms
was
reduced
due
stronger
binding
(especially
Cu
Cd)
matrix.
negative
impact
Cr,
also
confirmed
by
principal
component
analysis
(PCA).
Reviews in Environmental Science and Bio/Technology,
Journal Year:
2020,
Volume and Issue:
19(1), P. 191 - 215
Published: Feb. 5, 2020
Abstract
Biochar
is
a
pyrogenous,
organic
material
synthesized
through
pyrolysis
of
different
biomass
(plant
or
animal
waste).
The
potential
biochar
applications
include:
(1)
pollution
remediation
due
to
high
CEC
and
specific
surface
area;
(2)
soil
fertility
improvement
on
the
way
liming
effect,
enrichment
in
volatile
matter
increase
pore
volume,
(3)
carbon
sequestration
ash
content,
etc.
properties
are
affected
by
several
technological
parameters,
mainly
temperature
feedstock
kind,
which
differentiation
can
lead
products
with
wide
range
values
pH,
area,
CEC,
matter,
content.
High
promotes
production
strongly
developed
porosity,
pH
as
well
content
carbon,
but
low
matter.
This
most
likely
significant
degree
decomposition.
Biochars
produced
from
litter
solid
waste
feedstocks
exhibit
lower
areas,
compared
biochars
crop
residue
wood
biomass,
even
at
higher
temperatures.
reason
for
this
difference
considerable
variation
lignin
cellulose
moisture
biomass.
physicochemical
determine
application
biomaterial
an
additive
improve
quality.
review
succinctly
presents
impact
type
characteristics
its
fertility.
Environment International,
Journal Year:
2019,
Volume and Issue:
134, P. 105046 - 105046
Published: Nov. 12, 2019
Soil
contamination
by
potentially
toxic
elements
(PTEs)
has
led
to
adverse
environmental
impacts.
In
this
review,
we
discussed
remediation
of
PTEs
contaminated
soils
through
immobilization
techniques
using
different
soil
amendments
with
respect
type
element,
soil,
and
amendment,
efficiency,
underlying
mechanisms,
field
applicability.
such
as
manure,
compost,
biochar,
clay
minerals,
phosphate
compounds,
coal
fly
ash,
liming
materials
are
widely
used
immobilizing
agents
for
PTEs.
Among
these
amendments,
biochar
attracted
increased
interest
over
the
past
few
years
because
its
promising
surface
properties.
Integrated
application
appropriate
is
also
recommended
maximize
their
use
efficiency.
These
can
reduce
PTE
bioavailability
in
diverse
mechanisms
precipitation,
complexation,
redox
reactions,
ion
exchange,
electrostatic
interaction.
However,
properties
pH,
clay,
sesquioxides
organic
matter
content,
processes,
sorption/desorption
key
factors
governing
amendments'
efficacy
soils.
Selecting
proper
yield
cost-effective
fulfill
green
sustainable
principles.
Furthermore,
long-term
stability
immobilized
compounds
impacts
cost
effectiveness
should
be
considered
before
application.
Ecotoxicology and Environmental Safety,
Journal Year:
2022,
Volume and Issue:
249, P. 114408 - 114408
Published: Dec. 12, 2022
The
unpredictable
climatic
perturbations,
the
expanding
industrial
and
mining
sectors,
excessive
agrochemicals,
greater
reliance
on
wastewater
usage
in
cultivation,
landfill
leachates,
are
collectively
causing
land
degradation
affecting
thereby
reducing
food
production
globally.
Biochar
can
generally
mitigate
unfavourable
effects
brought
about
by
perturbations
(drought,
waterlogging)
degraded
soils
to
sustain
crop
production.
It
also
reduce
bioavailability
phytotoxicity
of
pollutants
contaminated
via
immobilization
inorganic
and/or
organic
contaminants,
commonly
through
surface
complexation,
electrostatic
attraction,
ion
exchange,
adsorption,
co-precipitation.
When
biochar
is
applied
soil,
it
typically
neutralizes
soil
acidity,
enhances
cation
exchange
capacity,
water
holding
aeration,
microbial
activity.
Thus,
has
been
was
widely
used
as
an
amendment
ameliorate
abiotic/biotic
stress.
This
review
discusses
addition
under
certain
conditions
(salinity,
drought,
flooding
heavy
metal
stress)
improve
plant
resilience
undergoing
these
perturbations.
with
other
stimulants
like
compost,
humic
acid,
phytohormones,
microbes
nanoparticles
could
be
synergistic
some
situation
enhance
survivorship
especially
saline,
waterlogged
arid
conditions.
Overall,
provide
effective
low-cost
solution,
nutrient-poor
highly
cultivation.
