The
quality
of
soil
containing
heavy
metals
(HMs)
around
nonferrous
metal
mining
areas
is
often
not
favorable
for
plant
growth.
Three
types
growth
promoting
rhizobacteria
(PGPR)-assisted
ryegrass
were
examined
here
to
treat
Cd,
Pb,
and
Zn
contaminated
collected
from
a
smelting
facility.
effects
PGPR-assisted
plants
on
quality,
growth,
the
migration
transformation
HMs
evaluated.
Results
showed
that
inter-root
inoculation
PGPR
increased
redox
potential,
urease,
sucrase
acid
phosphatase
activities,
microbial
calorimetry,
bioavailable
P,
Si,
K
content.
Inoculation
with
also
aboveground
parts
root
length,
contents,
antioxidant
enzyme
activities.
most
significant
effect
was
simultaneous
all
three
PGPRs
extraction
(%)
Cd
(59.04-79.02),
Pb
(105.56-157.13),
(27.71-40.79),
compared
CK
control
(without
fungi).
Correspondingly,
contents
total
(39.94-57.52),
(37.59-42.17),
(34.05-37.28)
decreased
CK1
fungi
plants),
whereas
their
bioavailability
increased.
suggest
can
improve
in
areas,
promote
transform
fraction
soil,
increase
by
ryegrass.
promising
microbe-assisted
phytoremediation
strategy
re-greening
vegetation
area
while
remediating
pollution.
Case Studies in Chemical and Environmental Engineering,
Journal Year:
2024,
Volume and Issue:
9, P. 100642 - 100642
Published: Jan. 29, 2024
Hydrogel
beads,
composed
of
polymers,
possess
the
ability
to
absorb
substantial
quantities
water
simultaneously
and
gradually
release
it
in
dry
conditions.
In
this
work,
hydrogel
beads
were
synthesized
using
sodium
alginate
(S-Alg)
poly
(acrylic
acid)
(P-Acc),
either
absence
or
presence
phosphate
(PO43−)
(S-Alg/P-Acc@PO43−)
carbonate
(CO32−)
anionic
ions
(S-Alg/P-Acc@CO32−).
Subsequently,
these
crosslinked
with
Ca2+
ions.
The
scanning
electron
microscopy
(SEM)
images
demonstrated
that
has
an
impact
on
structure
enhances
porosity
expansion
while
concurrently
reducing
concentration
carboxyl
(COOH)
groups.
exhibited
a
great
swelling
behavior,
S-Alg/P-Acc@CO32−
capable
absorbing
up
73.5
%
acidic
conditions,
but
decreased
under
neutral
basic
Soil
loss
(SWL)
experiments
confirmed
retain
soil.
Additionally,
observations
soil
characteristics
after
14-day
treatment
revealed
no
significant
difference
pH
C/N
ratio
(P-value
<0.05).
However,
soil's
available
Fe
N–NO3-
significantly
reduced
<0.05)
substantially
promoting
N–NH4+,
phosphorus
(P),
cation
exchange
capacity
(CEC),
organic
carbon
(SOC),
exchangeable
(Ca2+,
K+
Mg2+).
hydroxyl
(-OH)
–COOH
groups
was
found
be
crucial
for
enhancing
properties.
Soil Use and Management,
Journal Year:
2025,
Volume and Issue:
41(1)
Published: Jan. 1, 2025
Abstract
Because
of
the
worsening
soil
Cd
pollution,
safe
production
covered
soil‐cultivated
edible
fungi
Dectyophora
rubrovolvata
is
facing
serious
threats.
However,
use
biochar
for
heavy
metal
immobilization
differs
from
conventional
remediation
processes
as
a
result
rhizospheric
acidification
and
presence
dissolved
organic
matter.
Therefore,
this
study
investigated
changes
in
soils
availability
speciation,
matter
components
after
D.
cultivation
addition.
The
results
showed
that
mycelium
inoculation
increased
HAc‐Cd,
CaCl
2
‐Cd
DTPA‐Cd
concentrations
by
4.7%,
131.7%
11.4%,
respectively.
Treatment
with
three
types
reduced
8.7%–25.2%,
16.4%–24.5%
10.7%–15.8%,
respectively,
significantly
decreased
absorption.
secreted
led
to
transformation
residual
exchangeable
Cd.
Biochar
mitigated
migration
activated
neutralizing
acidification,
adsorbing
matter,
specifically
elements.
In
conclusion,
demonstrates
effective
metals
used
reduces
