Environmental Technology & Innovation,
Journal Year:
2023,
Volume and Issue:
31, P. 103228 - 103228
Published: June 1, 2023
Lead
(Pb)
can
accumulate
in
organisms
causing
damage
to
liver
and
kidney
functions.
Preventing
Pb2+
migration
surrounding
environments
is
considered
of
great
necessity.
This
study
explored
the
potential
applying
loess
nanoscale
zerovalent
iron-amended
(nZVI-AL)
Pb
immobilization.
The
static
equilibrium
adsorption
analyses
showed
that
by
nZVI-AL
was
classed
as
homogeneous
monolayer
surface
adsorption.
nZVI
particles
provided
with
more
sites
for
their
attachment
prevented
using
Fe-O
Fe-O-H
bonds.
Their
encouraged
formation
cerussite
precipitation,
which
not
only
caused
reduction
diffraction
peak
calcite
mineral
but
shifted
band
from
around
1430
cm−1
a
lower
wavenumber.
unbonded
electrons
functional
groups
on
quartz
coordinated
empty
orbit
Pb2+,
leaving
at
3.3429
Å.
Further,
Ca2+
distribution
sample
blurry
because
retardant
depletion
particles.
Moreover,
hydroxyl
bound
via
hydrogen
bonds
were
formed
amendment,
displacing
701
698
cm−1.
clay
minerals
well
form
Pb(OH)+,
corresponding
O-H
stretching
vibrations
3616
3430
respectively.
shows
its
landfills
bottom
liner
system.
Environmental Technology & Innovation,
Journal Year:
2023,
Volume and Issue:
32, P. 103380 - 103380
Published: Sept. 29, 2023
Microbially
induced
carbonate
precipitation
(MICP)
is
increasingly
being
explored
for
Pb-contaminated
water
bodies
and
soil
remediation.
However,
the
Pb-related
precipitate
resulting
from
MICP
process
can
possibly
leach
acid
over
time
when
subjected
to
harsh
environments,
causing
serious
threats
human
health.
In
this
study,
first
time,
self-healing
microbial-induced
calcium
(MICC)
materials
are
proposed
applied
prevent
Pb2+
migration
where
leached
after
spore
germination,
spore-vegetative
cell
transformation,
urease
secretion,
urea
hydrolysis,
thereby
producing
spore-containing
precipitation.
This
was
repeated
five
times
explore
effect
of
a
circular
environment
on
MICC
materials.
Results
indicated
that
Pb
immobilization
would
have
deteriorated
if
inosine
trace
elements
had
not
been
intervened
during
germination
respectively.
The
spores
vegetative
cells
provided
extra
nucleation
sites
minerals
attach.
extracellular
polymeric
substances
(EPSs)
combined
with
functional
groups
chemical
bonds
their
surrounding
environments.
scanning
electron
microscopy–energy-dispersive
X-ray
spectroscopy
(SEM–EDS)
images
also
cerussite
mineral
precipitated
prior
calcite
because
more
affinity
combine
CO32-
OH-.
An
efficiency
greater
than
95%
remained
nearly
same
cycles,
while
it
reduced
very
quickly
less
10%
three
cycles
neglecting
materials,
thus
highlighting
relative
merits.
Biochar,
Journal Year:
2024,
Volume and Issue:
6(1)
Published: March 1, 2024
Abstract
Soil
contamination
by
uranium
presents
a
burgeoning
global
environmental
concern,
exerting
detrimental
effects
on
both
agricultural
production
and
soil
health.
Biochar,
carbonaceous
material
derived
from
biomass
pyrolysis,
exhibits
considerable
potential
for
remediating
uranium-contaminated
soils.
However,
comprehensive
review
of
the
biochar
fate
accumulation
in
soil–plant
systems
remains
conspicuously
absent.
In
this
paper,
sources
are
reviewed,
impact
immobilization
detoxification
is
analyzed.
We
reviewed
status
soils
globally
found
that
mining
activities
currently
main
sources.
Further
meta-analysis
revealed
addition
significantly
reduced
bioavailability
shoot
accumulation,
their
effect
value
58.9%
(40.8–76.8%)
39.7%
(15.7–63.8%),
respectively.
Additionally,
enhances
microenvironment,
providing
favourable
conditions
promoting
plant
growth
reducing
mobility.
focused
mechanisms
governing
interaction
between
uranium,
emphasising
roles
played
surface
complexation,
reduction,
ion
exchange,
physical
adsorption.
The
modification
intensifying
these
can
promote
immobilisation
Finally,
alleviates
oxidative
stress
reduces
tissues,
thereby
mitigating
adverse
development.
Overall,
our
highlights
capacity
to
remediate
through
diverse
mechanisms,
valuable
insights
sustainable
remediation.
Highlights
Biochar
mobility
variety
including
limits
its
plants.
Modified
has
been
shown
enhance
effectiveness
immobilising
uranium.
application
not
only
promotes
remediation
but
also
improves
quality.
Graphical
Plant Stress,
Journal Year:
2023,
Volume and Issue:
10, P. 100205 - 100205
Published: Aug. 19, 2023
Drought
stress
is
one
of
the
serious
threats
to
crop
production.
It
causes
significant
deterioration
growth
and
yield
by
inducing
oxidative
stress.
The
biochar
arbuscular
mycorrhizae
fungi
(AMF)
can
be
an
effective
technique
overcome
drought
Activated
carbon
(BC)
has
potential
improve
soil
water
holding
capacity
while
AMF
inoculation
increase
root
surface
area
for
better
uptake
water.
However,
their
combined
application
as
amendment
against
still
needs
scientific
justification.
That's
why
current
study
was
conducted
using
a
combination
BC
on
spinach
under
no
treatments
included
i.e.,
0,
0.25%,
0.50%AMF-BC.
experiment
replicated
thre
times
completely
randomized
design
(CRD).
Results
showed
that
0.5%AMF-BC
shoot
fresh
weight
(20.34%),
dry
(21.23%),
length
(3.37%),
(16.10%),
(14.51%),
(38.03%)
over
control
0.50%AMF-BC
increased
chlorophyll
(15.33%),
b
(30.17%),
total
(18.85%),
photosynthetic
rate
(35.59%),
transpiration
(26.53%),
stomatal
conductance
(13.97%)
internal
CO2
concentration
(37.15%)
compared
improvement
in
N,
P,
K
verified
efficacious
functioning
In
conclusion,
recommended
mitigation
spinach.
