Frontiers in Microbiology,
Journal Year:
2025,
Volume and Issue:
16
Published: Feb. 18, 2025
Phosphate
mining
wasteland
is
contaminated
with
heavy
metals,
such
as
lead
(Pb)
and
cadmium
(Cd),
which
pose
significant
environmental
risks.
Ecological
restoration
of
these
lands
crucial,
but
limited
research
has
focused
on
the
remediation
metal-contaminated
soils
using
modified
biochar
functional
microorganisms.
In
this
study,
we
investigated
bioremediation
phosphate
soil
in
combination
phosphate-solubilizing
bacterium
Bacillus
cereus.
The
effects
synergistic
approach
nutrient
content,
metal
immobilization,
microbial
community
structure
were
assessed.
results
indicated
that
available
content
increased
by
59.32%.
extractable
state
Pb2
+
Cd2
decreased
65.06
71.26%,
respectively.
And
conditions
significantly
improved.
Synergistic
can
increase
diversity
abundance
communities
(p
<
0.05).
Janibacter,
Lysobacter,
Ornithinimicrobium,
Bacillus,
Salinimicrobium
main
flora
during
remediation,
correlations
for
promotion
immobilization
organic
matter.
ZitB,
czcD,
zntA,
cmtR
are
major
resistance
genes
regulate
metabolic
pathways
to
make
function
more
stable
after
wasteland.
Langmuir,
Journal Year:
2024,
Volume and Issue:
40(15), P. 8002 - 8014
Published: April 3, 2024
Graphene
oxide
(GO)
exhibits
a
strong
adsorption
capacity
for
the
removal
of
heavy
metal
ions
from
liquids,
making
it
topic
increasing
interest
among
researchers.
However,
significant
challenge
persists
in
preparation
graphene
oxide-based
adsorbents
that
possess
both
high
structural
stability
and
excellent
capacity.
In
this
paper,
green
environmentally
friendly
ternary
composite
aerogel
based
on
was
successfully
synthesized.
The
enhanced
through
diethylenetriaminepentaacetic
acid
modification,
while
incorporation
carboxymethyl
cellulose
improved
liquid.
demonstrates
robust
interactions
between
its
components
features
multiscale
porous
structure.
Adsorption
tests
conducted
with
Pb(II)
revealed
GO/DTPA/CMC
(GDC)
favorable
study
kinetics
isotherms
indicated
process
follows
quasi-secondary
model
Freundlich
model,
suggesting
chemical
multilayer
mechanism,
maximum
521.917
mg/g
quasi-quadratic
kinetic
fitting.
X-ray
photoelectron
spectroscopy
(XPS)
scanning
electron
microscopy
(SEM)
analyses,
performed
before
after
adsorption,
confirmed
primarily
occurs
chelation,
complexation,
proton
exchange,
electrostatic
active
sites
such
as
hydroxyl
carboxyl
groups.
This
presents
an
innovative
strategy
simultaneously
enhancing
properties
aerogels
ensuring
solution
stability.
RSC Advances,
Journal Year:
2024,
Volume and Issue:
14(31), P. 22266 - 22279
Published: Jan. 1, 2024
A
novel
eco-friendly
adsorbent
was
fabricated
by
mixing
mushroom-derived
cadmium
sulfide
and
polyethyleneimine-functionalized
biochar
that
from
coffee
waste
with
a
chitosan
biopolymer.
Environmental Science and Pollution Research,
Journal Year:
2024,
Volume and Issue:
31(22), P. 32664 - 32679
Published: April 25, 2024
The
adsorption
property
of
the
costless
green
cellulose
acetate
(CA)
was
boosted
by
dual
modifications:
inner
modification
incorporating
carboxylated
graphene
oxide
(COOH-GO)
into
CA
spheres
and
outer
surface
COOH-GO@CA
iminodiacetic
acid
(IDA)
for
removing
Pb(II).
experiments
Pb(II)
proceeded
in
a
batch
mode
to
evaluate
COOH-GO@CA@IDA
spheres.
maximal
capacity
attained
613.30
mg/g
within
90
min
at
pH
=
5.
removal
reached
its
equilibrium
20
min,
%
almost
100%
after
30
low
concentration.
mechanism
proposed
according
kinetics
isotherms
studies;
addition,
zeta
potential
(ZP)
measurements
X-ray
Photoelectron
Spectroscopy
(XPS)
analysis
defined
pathways.
By
comparing
XPS
spectra
authentic
used
COOH-GO@CA@IDA,
it
deduced
that
contributed
chemical
pathways
are
Lewis
acid-base,
precipitation,
complexation.
demonstrated
electrostatic
interaction
participation
adsorbing
cationic
species
onto
negatively
charged
(ZP
14.2
mV
5).
unique
channel-like
pores
suggested
pore-filling
promising
results
superb
recyclability
character
enable
extend
bench
scale
industrial
scale.
