Effective Treatment of Tannery Effluent by Biofilm-Forming Bacteria and Evaluation of their Toxicity Reduction
Annapurna Maurya,
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Rajesh Kumar,
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Abhay Raj
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et al.
Water Air & Soil Pollution,
Journal Year:
2025,
Volume and Issue:
236(2)
Published: Jan. 6, 2025
Language: Английский
BIOREMEDIATION: A SUPERIOR ALTERNATIVE FOR REMEDIATING TANNERY EFFLUENT-CONTAMINATED SOIL
FUDMA Journal of Sciences,
Journal Year:
2025,
Volume and Issue:
9(2), P. 193 - 208
Published: Feb. 28, 2025
Tannery
effluent
poses
significant
risks
to
soil
health,
primarily
through
contamination
with
heavy
metals
like
chromium,
sulphides,
and
persistent
organic
pollutants
(POPs).
These
toxic
substances
inhibit
microbial
activity,
reducing
nutrient
cycling
matter
decomposition
essential
for
fertility.
Beneficial
microorganisms,
including
nitrogen-fixing
bacteria,
are
particularly
affected,
leading
altered
communities
dominated
by
less
advantageous,
metal-tolerant
species.
Accumulation
of
POPs
disrupts
enzymatic
activities,
interferes
plant
root
growth,
complicates
remediation
efforts
due
pollutant
migration
groundwater
potential
entry
into
the
food
chain.
Prolonged
exposure
such
contaminants
diminishes
fertility,
reduces
resilience,
ecosystem
services,
posing
threats
agricultural
productivity
environmental
health.
This
review
was
aimed
outline
what
made
bioremediation
a
superior
treatment
technology
among
other
methods
used
in
remediating
tannery
contaminated
soil.
Efforts
mitigate
impacts
involve
combination
physical,
chemical,
biological
technologies.
Physical
washing,
flushing,
thermal
desorption
focus
on
removing
or
isolating
contaminants,
while
chemical
approaches
as
oxidation,
reduction,
stabilization
transform
harmful
forms
immobilize
them.
Biological
leverages
microorganisms
plants
detoxify
sustainably.
Bioremediation
strategies
aid
bioaugmentation
biostimulation
do
enhance
activity
address
inorganic
effectively
more
than
physical
methods.
Another
excellent
called
phytoremediation
can
also
effectively,
Achieving
better
technique
should
be
coupled
stringent
industrial
regulations,
sustainable
tanning
methods,
stakeholder
awareness
Language: Английский
Effect of electric field frequency on phytoremediation efficiency and properties of Cd-contaminated soil
Xiaolan Xu,
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Chuikang Zhou,
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Jiajie Mei
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et al.
Published: April 29, 2025
Abstract
Electrochemical-phytoextraction
is
considered
as
an
integrated
technology
for
removal
of
Cd
in
contaminated
soil.
However,
there
a
lack
systematic
studies
on
the
how
electric
field
frequency
plant
enrichment
and
soil
microbial
properties,
which
has
restricted
optimised
application
technology.
This
study
investigated
influence
alternating
current
(AC)
at
frequencies
50
Hz
300
accumulation
willow
(
Salix
spp.),
availability,
properties.
Exposure
to
AC
resulted
different
degrees
increase
biomass
production
leaves,
branches,
stems,
roots;
concentrations
N,
P,
K
willow;
increased
root
volume
surface
area;
promoted
photosynthesis
willow.
Compared
with
control,
significantly
enhanced
above-ground
parts
roots
by
14.65%
9.48%,
respectively.
Moreover,
exposure
availability
8.34%
19.26%
Hz,
decreased
urease
activity
but
peroxidase
acid,
phosphatase,
activity.
suggests
that
modulate
interactions
between
Cd,
enzymes,
microbes.
Although
generally
inhibit
enzyme
activity,
can
alter
environment,
reduce
toxic
effects,
enhance
oxidative
stress
responses
nutrient
cycling,
mitigate
toxicity.
Therefore,
these
results
indicate
growth,
altered
ultimately
leading
uptake
In
particular,
exhibited
greater
impacts
enrichment.
Language: Английский
Preparation of Zeolite A from Ion-Adsorbing Rare Earth Tailings for Selective Adsorption of Pb2+: An Innovative Approach to Waste Valorization
Qiangwei Huang,
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Wenbo Wang,
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Wenhui Lai
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et al.
Molecules,
Journal Year:
2024,
Volume and Issue:
29(21), P. 5065 - 5065
Published: Oct. 26, 2024
Ion-adsorbing
rare
earth
tailings
(IRETs)
contain
a
large
amount
of
clay
minerals,
which
are
potential
source
silicon
and
aluminum
for
the
preparation
zeolite
materials.
The
complexity
tailings'
composition
impurity
main
difficulties
in
controllable
zeolite.
Herein,
IRETs
were
treated
by
classification
activation
technology
IRET-ZEO,
was
used
removal
heavy
metal
Pb
Language: Английский