The
research
presented
herein
explores
the
development
of
a
novel
iron-carbon
composite,
designed
specifically
for
improved
treatment
high-concentration
antibiotic
wastewater.
Employing
nitrogen-shielded
thermal
calcination
approach,
investigation
utilizes
blend
reductive
iron
powder,
activated
carbon,
bentonite,
copper
manganese
dioxide,
and
ferric
oxide
to
formulate
an
efficient
composite.
oxygen
exclusion
process
in
particles
results
distinctive
electrochemical
cells
formation,
markedly
enhancing
wastewater
degradation
efficiency.
Iron-carbon
micro-electrolysis
not
only
boosts
biochemical
degradability
concentrated
but
also
mitigates
acute
biological
toxicity.
In
response
increased
Fe2+
levels
found
wastewater,
this
incorporates
Fenton
oxidation
advanced
byproducts.
Through
synergistic
application
oxidation,
accomplishes
significant
decrease
initial
COD
reducing
them
from
90000
mg/L
about
30000
mg/L,
thus
achieving
impressive
removal
efficiency
66.9%.
This
integrated
methodology
effectively
reduces
pollutant
load,
recycling
additionally
contributes
reduction
both
volume
cost
associated
with
solid
waste
treatment.
underscores
considerable
potential
composite
material
efficiently
managing
thereby
making
notable
contribution
field
environmental
science.
Abstract.
Microbial
fuel
cell
(MFC)
is
an
efficient
in-situ
approach
to
combat
pollutants
and
generate
electricity.
This
study
constructed
a
soil
MFC
(SMFC)
reduce
Cr(VI)
in
paddy
investigate
its
influence
on
microbial
community
resistance
characteristics.
Fe3O4
nanoparticle
as
the
cathodic
catalyst
effectively
boosted
power
generation
(0.97
V,
102.0
mW/m2),
whose
porous
structure
reducibility
also
contributed
Cr
reduction
immobilization.
After
30
days,
93.67
%
of
was
eliminated.
The
bioavailable
decreased
by
97.44
while
residual
form
increased
88.89
%.
SMFC
operation
greatly
changed
enzymatic
activity
structure,
with
exoelectrogens
like
Desulfotomaculum
(3.32
anode)
Cr(VI)-reducing
bacteria
Hydrogenophaga
(2.07
cathode)
more
than
1000
folds
soil.
In
particular,
significantly
enhanced
abundance
heavy
metal
genes
(HRGs).
Among
them,
chrA,
chrB,
chrR
99.54~3314.34
anode
control,
probably
attributed
enrichment
potential
tolerators
Acinetobacter,
Limnohabitans,
and
Desulfotomaculum.
These
key
taxa
were
positively
correlated
HRGs
but
negatively
pH,
EC,
Cr(VI),
which
could
have
driven
reduction.
provided
novel
evidence
for
bioelectrochemical
system
application
contaminated
soil,
be
environmental
remediation
detoxification.
The
research
presented
herein
explores
the
development
of
a
novel
iron-carbon
composite,
designed
specifically
for
improved
treatment
high-concentration
antibiotic
wastewater.
Employing
nitrogen-shielded
thermal
calcination
approach,
investigation
utilizes
blend
reductive
iron
powder,
activated
carbon,
bentonite,
copper
manganese
dioxide,
and
ferric
oxide
to
formulate
an
efficient
composite.
oxygen
exclusion
process
in
particles
results
distinctive
electrochemical
cells
formation,
markedly
enhancing
wastewater
degradation
efficiency.
Iron-carbon
micro-electrolysis
not
only
boosts
biochemical
degradability
concentrated
but
also
mitigates
acute
biological
toxicity.
In
response
increased
Fe2+
levels
found
wastewater,
this
incorporates
Fenton
oxidation
advanced
byproducts.
Through
synergistic
application
oxidation,
accomplishes
significant
decrease
initial
COD
reducing
them
from
90000
mg/L
about
30000
mg/L,
thus
achieving
impressive
removal
efficiency
66.9%.
This
integrated
methodology
effectively
reduces
pollutant
load,
recycling
additionally
contributes
reduction
both
volume
cost
associated
with
solid
waste
treatment.
underscores
considerable
potential
composite
material
efficiently
managing
thereby
making
notable
contribution
field
environmental
science.
