The
surface
sediments
as
a
repository
of
pelagic
environment
changes
and
microbial
community
structural
succession
tend
to
have
profound
effect
on
global
local
nitrogen
sulfur
cycling.
In
this
study,
analysis
sediment
samples
collected
from
the
Bohai
Sea,
Yellow
north
East
China
Seas
(BYnECS)
revealed
longitude,
latitude,
depth,
chlorophyll
had
strongest
influence
structure
(p-values
<
0.005).
A
clear
distance-decay
pattern
was
exhibited
in
BYnECS.
result
co-occurrence
network
modularization
implied
that
more
active
pathway
winter
thiosulfate
reduction
nitrate
reduction,
while
summer
it
nitrification.
potential
functional
genes
were
predicted
communities,
most
dominant
assigned
assimilatory
denitrification,
dissimilatory
reduction.
This
study
innovatively
explored
relationships
between
cycling
these
three
sea
regions
Sea.
Sustainability,
Год журнала:
2025,
Номер
17(8), С. 3359 - 3359
Опубликована: Апрель 9, 2025
Perfluorooctanoic
acid
(PFOA),
an
emerging
organic
contaminant
frequently
detected
in
wastewater,
inhibits
biological
nitrogen
removal
processes,
posing
challenges
to
sustainable
wastewater
treatment.
Mitigating
the
adverse
effects
of
PFOA
while
enhancing
total
(TN)
efficiency
remains
a
critical
concern.
In
this
study,
three
sequencing
batch
biofilm
reactors
(SBBRs)
were
operated
under
low-oxygen
conditions
with
C/N
ratio
4.0
investigate
enhanced
stress
using
biochar.
Compared
78.1%
TN
control
reactor
(SBBR-0)
initial
concentration
50
mg/L,
addition
decreased
by
2.3%
SBBR-1,
combined
and
biochar
increased
it
3.2%
SBBR-2.
Biochar,
acting
through
its
electron-donating
surface
functional
groups,
mitigated
PFOA-induced
reactive
oxygen
species
accumulation
adenosine
triphosphate
production.
These
promoted
generation
quorum
sensing
(QS)
signaling
molecules,
facilitating
microbial
communication
cooperation.
Consequently,
relative
abundance
key
nitrogen-removing
bacteria,
such
as
Thauera
(from
7.90%
9.92%)
Nitrosomonas
1.42%
5.75%),
increased,
leading
efficiency.
A
metagenomic
analysis
revealed
that
significantly
reduced
production
antibiotic
resistance
genes
without
promoting
their
dissemination.
findings
provide
new
insights
into
mitigating
negative
improving
QS
promotion,
offering
potential
approach
for
sustainability
treatment
systems.
Environmental Progress & Sustainable Energy,
Год журнала:
2024,
Номер
43(5)
Опубликована: Июль 24, 2024
Abstract
The
reutilization
of
municipal
solid
waste
incineration
(MSWI)
fly
ash
is
a
prominent
area
research.
This
study
focused
on
creating
porous
plate
filler
(FAPPF)
by
using
techniques,
such
as
water
extraction,
milling,
component
adjustment,
and
sintering.
produced
FAPPF
was
then
used
to
cultivate
biofilm
for
wastewater
treatment.
key
parameters
included
two‐stage
extraction
process
with
5:1
liquid‐to‐solid
ratio;
milling
1,
2,
4
h;
adjustment
glass
powder,
milled
ash,
palygorskite
peanut
shell
powder
at
7:1:1:1
mass
sintering
temperatures
ranging
from
700
1000°C.
For
the
cultivation
treatment,
this
employed
semisimulated
sewage
in
sequencing
batch
reactor
system.
results
revealed
had
no
heavy
metal
leaching,
porosity
48.53%–54.68%.
Approximately
90%
its
composition
derived
materials.
Furthermore,
scanning
electron
microscopy
microanalysis
an
internally
stable
liquid‐phase
structure.
Finally,
mature
developed
21
days,
achieving
maximum
removal
rates
95.48%
chemical
oxygen
demand
78.4%
ammonia
nitrogen.
article
confirms
sustainable
recycling
potential
MSWI
ash.
The
surface
sediments
as
a
repository
of
pelagic
environment
changes
and
microbial
community
structural
succession
tend
to
have
profound
effect
on
global
local
nitrogen
sulfur
cycling.
In
this
study,
analysis
sediment
samples
collected
from
the
Bohai
Sea,
Yellow
north
East
China
Seas
(BYnECS)
revealed
longitude,
latitude,
depth,
chlorophyll
had
strongest
influence
structure
(p-values
<
0.005).
A
clear
distance-decay
pattern
was
exhibited
in
BYnECS.
result
co-occurrence
network
modularization
implied
that
more
active
pathway
winter
thiosulfate
reduction
nitrate
reduction,
while
summer
it
nitrification.
potential
functional
genes
were
predicted
communities,
most
dominant
assigned
assimilatory
denitrification,
dissimilatory
reduction.
This
study
innovatively
explored
relationships
between
cycling
these
three
sea
regions
Sea.
