The Science of The Total Environment,
Год журнала:
2021,
Номер
776, С. 145953 - 145953
Опубликована: Фев. 18, 2021
The
use
of
biochar
to
stabilize
soil
contaminants
is
emerging
as
a
technique
for
remediation
contaminated
soils.
In
this
study,
an
environmental
assessment
systems
where
produced
from
wood
waste
with
energy
recovery
used
soils
polycyclic
aromatic
hydrocarbons
(PAH)
and
metal(loid)s
was
performed.
Two
options
(on-
off-site)
are
considered
compared
landfilling.
combined
material
flow
analysis
(MEFA),
life
cycle
(LCA),
substance
(SFA).
MEFA
indicated
that
on-site
can
save
fuel
backfill
off-site
However,
the
net
production
by
pyrolysis
38%
lower
than
incineration.
LCA
showed
both
performed
better
landfilling
in
10
12
impact
categories,
performing
best.
Remediation
provided
substantial
reductions
climate
change
studied
context,
owing
carbon
sequestration
being
up
4.5
times
larger
direct
greenhouse
gas
emissions
systems.
two
increased
impacts
only
ionizing
radiation
fossils
because
electricity
consumption
production.
They
also
resulted
biomass
demand
maintain
SFA
leaching
PAH
remediated
landfilled
soil.
For
metal(loid)s,
no
straightforward
conclusion
could
be
made,
had
different
effects
on
their
some
elements
results
were
sensitive
water
infiltration
assumptions.
Hence,
reuse
biocharremediated
requires
further
evaluation,
site-specific
information.
Overall,
Sweden's
current
environmentally
promising
alternative
worth
investigating
further.
Energy & Environmental Science,
Год журнала:
2021,
Номер
14(4), С. 1701 - 1721
Опубликована: Янв. 1, 2021
This
review
provides
a
perspective
on
how
to
conduct
future
Life
Cycle
Assessment
(LCA)
studies
of
carbon
dioxide
removal
technologies
in
consistent
way
avoiding
common
mistakes,
which
should
be
addressed
aid
informed
decision
making.
Abstract
Biochar
is
a
waste-derived
material
that
can
sequester
carbon
at
large
scale.
The
development
of
low-carbon
and
sustainable
biochar-enhanced
construction
materials
has
attracted
extensive
interest.
Biochar,
having
porous
nature
highly
functionalised
surface,
provide
nucleation
sites
for
chemical
reactions
exhibit
compatibility
with
cement,
asphalt,
polymer
materials.
This
study
critically
reviewed
the
state-of-the-art
materials,
including
biochar-cement
composites,
biochar-asphalt
biochar-plastic
etc.
efficacies
mechanisms
biochar
as
were
articulated
to
improve
their
functional
properties.
critical
review
highlighted
roles
in
cement
hydration,
surface
groups
engineered
promoting
reactions,
value-added
merits
(such
humidity
regulation,
thermal
insulation,
noise
reduction,
air/water
purification,
electromagnetic
shielding,
self-sensing).
major
properties
are
correlated
features
functionalities
Further
advances
our
understanding
biochar’s
various
composites
foster
next-generation
design
carbon–neutral
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