Environmental Science & Technology,
Journal Year:
2021,
Volume and Issue:
55(13), P. 8464 - 8483
Published: June 25, 2021
2021
marks
10
years
since
controlled
abiotic
synthesis
of
sulfidated
nanoscale
zerovalent
iron
(S-nZVI)
for
use
in
site
remediation
and
water
treatment
emerged
as
an
area
active
research.
It
was
then
expanded
to
microscale
ZVI
(S-mZVI)
together
with
S-nZVI,
they
are
collectively
referred
S-(n)ZVI.
Heightened
interest
S-(n)ZVI
stemmed
from
its
significantly
higher
reactivity
chlorinated
solvents
heavy
metals.
The
extremely
promising
research
outcomes
during
the
initial
period
(2011-2017)
led
renewed
(n)ZVI-based
technologies
treatment,
explosion
new
last
four
(2018-2021)
that
is
building
understanding
novel
complex
role
sulfides
enhancing
(n)ZVI.
Numerous
studies
have
focused
on
exploring
different
approaches,
colloidal,
surface,
(electrochemistry,
contaminant
selectivity,
corrosion)
properties.
This
review
provides
a
critical
overview
recent
milestones
technology
development:
(i)
clear
insights
into
transformation
long-term
aging,
(ii)
impact
sulfidation
methods
particle
characteristics
reactivity,
(iii)
broader
range
treatable
contaminants,
(iv)
complete
decontamination,
(v)
ecotoxicity,
(vi)
field
implementation.
In
addition,
this
discusses
major
knowledge
gaps
future
avenues
opportunities.
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.
Materials Advances,
Journal Year:
2021,
Volume and Issue:
2(2), P. 598 - 627
Published: Jan. 1, 2021
This
review
presents
the
adsorptive
removal
process
of
hazardous
materials
onto
carbon-based
comprising
activated
carbon,
graphene,
carbon
nanotubes,
nanofibers,
biochar
and
aerogels.
RSC Advances,
Journal Year:
2023,
Volume and Issue:
13(26), P. 17595 - 17610
Published: Jan. 1, 2023
Heavy
metal
contamination
of
water
sources
has
emerged
as
a
major
global
environmental
concern,
threatening
both
aquatic
ecosystems
and
human
health.
pollution
in
the
environment
is
on
rise
due
to
industrialization,
climate
change,
urbanization.
Sources
include
mining
waste,
landfill
leachates,
municipal
industrial
wastewater,
urban
runoff,
natural
phenomena
such
volcanic
eruptions,
weathering,
rock
abrasion.
ions
are
toxic,
potentially
carcinogenic,
can
bioaccumulate
biological
systems.
metals
cause
harm
various
organs,
including
neurological
system,
liver,
lungs,
kidneys,
stomach,
skin,
reproductive
systems,
even
at
low
exposure
levels.
Efforts
find
efficient
methods
remove
heavy
from
wastewater
have
increased
recent
years.
Although
some
approaches
effectively
contaminants,
their
high
preparation
usage
costs
may
limit
practical
applications.
Many
review
articles
been
published
toxicity
treatment
for
removing
wastewater.
This
focuses
main
pollution,
chemical
transformation,
toxicological
impacts
environment,
harmful
effects
ecosystem.
It
also
examines
advances
cost-effective
techniques
physicochemical
adsorption
using
biochar
zeolite
ion
exchangers,
well
decomposition
complexes
through
advanced
oxidation
processes
(AOPs).
Finally,
advantages,
applications,
future
potential
these
discussed,
along
with
any
challenges
limitations
that
must
be
considered.
