Agronomy,
Journal Year:
2024,
Volume and Issue:
15(1), P. 9 - 9
Published: Dec. 24, 2024
At
present,
non-point
source
pollution
(NPSP)
has
overtaken
point
as
the
most
important
of
water
in
China.
Ecological
treatment
projects
(ETP)
suitable
for
have
been
widely
recommended.
However,
China’s
NPSP
prevention
system
not
yet
taken
shape,
implementation
and
management
levels
are
disorganized,
long-term
protection
NPSP-ETP
remains
an
urgent
problem.
This
paper
focuses
on
practical
problems
encountered
promotion
ETP
China,
ways
to
solve
these
operation
maintenance
process.
First,
practice
China
summarized
being
caused
by
a
lack
systematic
regulation
maintenance.
Following
this,
promising
countermeasures
proposed,
including
establishing
ecological
technology
system,
improving
selection
assessment
method
project
operation,
Finally,
novel
theory
Monitoring-Assessment-Repair
(MAR)
is
proposed
bottlenecks
engineering
Furthermore,
problem
clogging
infrastructure
discussed
detail,
illustrate
concrete
MAR
theory.
Overall,
this
study
clarifies
issues
favor
mechanism
beyond
Sustainability,
Journal Year:
2025,
Volume and Issue:
17(8), P. 3359 - 3359
Published: April 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.
Advanced Sustainable Systems,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 15, 2025
Abstract
Climate
change
and
socioeconomic
shifts
are
straining
water
resources,
threatening
public
welfare
ecosystems,
making
it
crucial
to
address
hazardous
pollutants
in
industrial
wastewater
before
they
enter
the
environment.
Amidst
global
transition
toward
a
circular
bioeconomy,
biopolymers
have
emerged
as
promising
alternative
synthetic
polymeric
membranes.
Their
biodegradability
into
harmless
byproducts
positions
them
eco‐friendly
options.
Biopolymeric
materials,
particularly
fibrous
forms,
offer
exceptional
flux
permeability,
enhanced
resistance
fouling,
highly
selective
filtration.
remarkable
specific
surface
area
interconnected
porous
structure
make
superior
choice
for
advanced
filtration
applications.
A
progressive
advancement
this
domain
unfolds
by
integrating
carbon‐based
materials
biopolymeric
Represented
like
MXene,
graphene
oxide,
carbon
nanotubes,
such
fillers
augment
membranes,
offering
attributes
area,
adsorption
ion
exchange
capabilities,
chemical
versatility,
antibacterial
features.
This
comprehensive
review
delves
intricacies
of
engineering
emphasizing
their
evolution
efficient
structures
treatment.
It
also
explores
synergistic
amalgamation
networks
with
nanostructures,
highlighting
collective
potential
advancing
environmentally
conscious
green
membranes
achieving
ultimate
objective
ensuring
clean
resources.
Buildings,
Journal Year:
2025,
Volume and Issue:
15(9), P. 1417 - 1417
Published: April 23, 2025
The
rural
population
shrinkage
caused
by
China’s
imbalanced
regional
development
poses
challenges
to
infrastructure
configuration
and
operation.
Traditional
centralized
sewage
treatment
models
face
issues
in
cost-effectiveness,
facility
utilization
rates,
sustainable
maintenance,
necessitating
the
exploration
of
adaptive
governance
technologies
under
new
demographic
conditions.
utilization-driven
approach
is
recognized
as
an
emerging
method
for
domestic
management.
This
study
selects
Heyang
County,
a
representative
agricultural
area
Guanzhong
Plain,
case
study.
Through
mixed-methods
research
integrating
qualitative
quantitative
approaches,
we
analyze
correlation
between
Population
Shrinkage
Index
(PSI)
operational
efficiency,
investigate
impact
resident
dynamics
on
patterns,
establish
theoretical
“Source–Transmission–Sink”
framework.
Synthesizing
local
traditional
practices
with
modern
technological
solutions,
propose
resource-oriented
system
adapted
trends,
comprising
three
technical
components:
source
process
reduction,
transmission
interception,
sink
attenuation.
emphasizes
adjusting
green
water
(GWI)
spatial
configurations
according
village
characteristics
production–living–ecological
spaces,
forming
hierarchical
attenuation
mechanism
through
circular
pathways.
facilitates
transition
from
gray-infrastructure-dependent
holistic
pollution
control
systems
resource
recovery
capabilities.
findings
provide
foundations
policymaking
planning
management,
offering
significant
references
governance.
A
number
of
studies
have
demonstrated
that
organic
pollutants
present
in
wastewater
contain
a
considerable
quantity
chemical
energy.
However,
conventional
methods
treating
do
not
make
full
use
the
energy
while
it.
This
paper
proposes
photocatalytic
fuel
cell
(PFC)
was
proposed
to
remove
dye
contaminants
and
generate
electricity
at
same
time.
The
photoanode
PFC
is
Carbon
quantum
dots
(CQDs)/anatase
TiO2
(A-TiO2),
cathode
Pt.
CQDs/A-TiO2
composite
structure
can
extend
visible
light
absorption
range
A-TiO2.
Different
crystal
structures
particle
sizes
an
effect
on
power
generation
contaminant
removal
performance
PFC.
results
photodegradation
experiments
electrochemical
tests
indicate
degradation
electrochemistry
20
nm
A-TiO2
are
superior
those
other
samples.
Consequently,
selected
for
photoanode.
photocurrent
density,
open-circuit
voltage
maximum
density
were
found
be
0.6
µA/cm2,
0.41
V
0.1
µW/cm2,
respectively.
Photodegradation
showed
could
contaminants.
