Frontiers in Environmental Science,
Год журнала:
2022,
Номер
10
Опубликована: Апрель 21, 2022
Understanding
how
external
water
affects
the
quality
of
target
bodies
is
an
important
prerequisite
for
predicting
changes
and
formulating
pollutant
reduction
plans.
Using
EFDC
modeling
system
platform,
this
study
constructed
hydrodynamic
dispersion
diffusion
models
Zhangze
Reservoir,
by
using
hydrology
data
from
2013
to
2018,
examines
different
responses
Reservoir
under
inflow
control
scenarios.
The
results
show
that
simulated
value
hydrological
station
basically
consistent
with
measured
station.
Under
current
Class
III
requirements
direct
effluent
wastewater
treatment
plant
main
urban
area
into
reservoir
will
have
a
significant
impact
on
quality.
When
purified
through
wetlands,
it
significantly
improves
reservoir,
but
concentration
TN
TP
still
cannot
reach
standard
in
short
term,.
all
rivers
entering
meet
does
not
enter
content
COD,
ammonia
nitrogen
standard,
reducing
requirement
be
difficult
within
3
years.
Frontiers in Microbiology,
Год журнала:
2024,
Номер
15
Опубликована: Июнь 6, 2024
Given
the
increasing
pressure
on
water
bodies,
it
is
imperative
to
explore
sustainable
methodologies
for
wastewater
treatment
and
reuse.
The
simultaneous
presence
of
multiples
contaminants
in
complex
wastewater,
such
as
liquid
effluents
from
biogas
plants,
can
compromise
biological
effectiveness
reclaiming
water.
Vertical
subsurface
flow
constructed
wetlands
were
established
low-cost
decentralized
technologies
treat
fraction
digestate
municipal
organic
waste
with
metals,
antibiotics,
antibiotic
resistance
genes,
allow
its
reuse
irrigation.
Twelve
lab-scale
planted
assembled
gravel,
light
expanded
clay
aggregate
sand,
testing
four
different
treating
conditions
(liquid
spiked
oxytetracycline,
sulfadiazine,
or
ofloxacin,
at
100
μg/
L,
without
dosing)
during
3
months.
Physicochemical
parameters
(pH,
chemical
oxygen
demand
(COD),
nutrients,
antibiotics),
microbial
communities
dynamics
(through
16S
high-throughput
sequencing)
genes
removal
(qPCR)
monitored
influents
effluents.
Systems
removed
85.8%–96.9%
matter
(as
COD),
over
98.1%
ammonium
phosphate
ions,
69.3%–99.4%
nitrate
nitrite
no
significant
differences
between
absence
antibiotics.
Removal
Fe,
Mn,
Zn,
Cu,
Pb
Cr
exceeded
82%
all
cycles.
also
sulfadiazine
ofloxacin
99%,
decreased
intl1,
tetA,
tetW
,
sul1
qnrS
gene
copies.
Nonetheless,
after
months
dosing,
started
being
detected.
processes
relied
high
HRT
(14
days)
various
mechanisms
including
sorption,
biodegradation,
precipitation.
Microbial
community
diversity
changed
significantly
a
decrease
initial
Firmicutes
dominance,
but
clear
effect
antibiotics
structure.
Removals
above
85%
94%
observed
Streptococcus
Clostridium,
respectively.
Results
suggest
that
vertical
suitable
technology
irrigation
agricultural
systems,
contributing
circular
bioeconomy
concept.
However,
more
profound
understanding
effective
strategies
needed
avoid
dissemination.
Frontiers in Environmental Science,
Год журнала:
2022,
Номер
10
Опубликована: Апрель 21, 2022
Understanding
how
external
water
affects
the
quality
of
target
bodies
is
an
important
prerequisite
for
predicting
changes
and
formulating
pollutant
reduction
plans.
Using
EFDC
modeling
system
platform,
this
study
constructed
hydrodynamic
dispersion
diffusion
models
Zhangze
Reservoir,
by
using
hydrology
data
from
2013
to
2018,
examines
different
responses
Reservoir
under
inflow
control
scenarios.
The
results
show
that
simulated
value
hydrological
station
basically
consistent
with
measured
station.
Under
current
Class
III
requirements
direct
effluent
wastewater
treatment
plant
main
urban
area
into
reservoir
will
have
a
significant
impact
on
quality.
When
purified
through
wetlands,
it
significantly
improves
reservoir,
but
concentration
TN
TP
still
cannot
reach
standard
in
short
term,.
all
rivers
entering
meet
does
not
enter
content
COD,
ammonia
nitrogen
standard,
reducing
requirement
be
difficult
within
3
years.
