International Journal of Environmental Research and Public Health,
Journal Year:
2022,
Volume and Issue:
19(22), P. 14968 - 14968
Published: Nov. 14, 2022
Phytoremediation
could
be
an
alternative
strategy
for
lead
(Pb)
contamination.
K.
paniculata
has
been
reported
as
a
newly
potential
plant
sustainable
phytoremediation
of
Pb-contaminated
soil.
Physiological
indexes,
enrichment
accumulation
characteristics,
Pb
subcellular
distribution
and
microstructure
were
carefully
studied
at
different
levels
stress
(0-1200
mg/L).
The
results
showed
that
growth
increased
up
to
123.8%
112.7%,
relative
the
control
group
when
was
200
mg/L
400
mg/L,
respectively.
However,
average
height
biomass
decrease
continues
increase.
In
all
treatment
groups,
in
organs
trend
root
>
stem
leaf,
reached
81.31%~86.69%
root.
Chlorophyll
content
chlorophyll
a/b
rising
then
fell
with
increasing
stress.
Catalase
(CAT)
peroxidase
(POD)
activity
positive
followed
by
negative
decline,
while
superoxide
dismutase
(SOD)
significantly
exposure
Transmission
electron
microscopy
(TEM)
accumulates
inactive
metabolic
regions
(cell
walls
vesicles)
roots
stems,
which
may
main
mechanism
plants
reduce
biotoxicity.
Fourier
transform
infrared
spectroscopy
(FTIR)
intracellular
-OH
-COOH
functional
groups.
Through
organic
acids,
polysaccharides,
proteins
other
compounds
bound
Pb,
adaptation
tolerance
enhanced.
good
broad
application
prospects
heavy
metal-contaminated
Scientific Reports,
Journal Year:
2022,
Volume and Issue:
12(1)
Published: Jan. 26, 2022
Abstract
The
study
aims
to
solve
the
problems
of
limited
capacity
and
difficult
recovery
lignite
adsort
Cu
2+
,
Zn
Pb
in
acid
mine
wastewater
(AMD).
Magnetically
modified
(MML)
was
prepared
by
chemical
co-precipitation
method.
Static
beaker
experiments
dynamic
continuous
column
were
set
up
explore
adsorption
properties
MML.
Lignite
MML
before
after
heavy
metal
ions
characterized
scanning
electron
microscopy
(SEM),
X-ray
diffraction
(XRD)
Fourier
transform
infrared
spectrometer
(FTIR).
Meanwhile,
mechanisms
revealed
combining
isotherm
model
kinetics
model.
results
showed
that
pH,
adsorbent
dosage,
temperature,
initial
concentration
ions,
contact
time
had
an
influence
on
MML,
processes
more
line
with
Langmuir
jointly
controlled
multiple
stages.
obeyed
Quasi
first-order
kinetic
model,
while
chemisorption
second-order
negative
Δ
G
positive
H
indicated
spontaneous
endothermic
nature
reaction,
exothermic
reaction.
average
removal
rates
78.00,
76.97
78.65%,
respectively,
those
82.83,
81.57
83.50%,
respectively.
Compared
lignite,
effect
better.
As
shown
SEM,
XRD
FTIR
tests,
Fe
3
O
4
successfully
loaded
surface
during
magnetic
modification,
which
made
morphology
coarser.
removed
from
AMD
different
forms.
In
addition,
process
is
related
O–H
stretching
vibration
carboxylic
Fe–O
particles.
BioMed Research International,
Journal Year:
2023,
Volume and Issue:
2023(1)
Published: Jan. 1, 2023
The
increasing
public
concern
over
the
negative
impacts
of
chemical
fertilizers
and
pesticides
on
food
security
sustainability
has
led
to
exploring
innovative
methods
that
offer
both
environmental
agricultural
benefits.
One
such
approach
is
using
plant‐growth‐promoting
bioinoculants
involve
bacteria,
fungi,
algae.
These
living
microorganisms
are
applied
soil,
seeds,
or
plant
surfaces
can
enhance
development
by
nutrient
availability
defense
against
pathogens.
However,
application
biofertilizers
in
field
faced
many
challenges
required
conjunction
with
delivering
approaches.
Nanotechnology
gained
significant
attention
recent
years
due
its
numerous
applications
various
fields,
as
medicine,
drug
development,
catalysis,
energy,
materials.
Nanoparticles
small
sizes
large
surface
areas
(1‐100
nm)
have
potential
functions.
In
sustainable
agriculture,
nanochemicals
shown
promise
agents
for
growth,
fertilizers,
pesticides.
use
nanomaterials
being
considered
a
solution
control
pests,
including
insects,
weeds.
industry,
nanoparticles
used
antimicrobial
packaging,
silver
particularly
interesting.
(Ag,
Fe,
Cu,
Si,
Al,
Zn,
ZnO,
TiO
2
,
CeO
Al
O
3
carbon
nanotubes)
been
reported
negatively
affect
growth.
This
review
focuses
effects
beneficial
bacteria
their
ability
promote
Implementing
novel
strategies
biofertilizers,
could
be
promising
achieve
production
while
reducing
impacts.
