Impacts of rainfall characteristics and land cover types on an urban river water quality: A case study of sponge city Beijing
Journal of Cleaner Production,
Journal Year:
2025,
Volume and Issue:
unknown, P. 145411 - 145411
Published: April 1, 2025
Language: Английский
Control of overflows in interception wells based on water quantity and quality in rainwater pipelines for reducing pollution to rivers
Hanglei Liao,
No information about this author
Zuchao Huang,
No information about this author
Kuan Pan
No information about this author
et al.
Urban Water Journal,
Journal Year:
2024,
Volume and Issue:
21(6), P. 790 - 801
Published: May 28, 2024
The
separate
sewer
system
has
led
to
severe
river
pollution
because
of
domestic
sewage
infiltrations
and
initial
rainfall
pollution.
Therefore,
interception
wells
(IWs)
are
installed
divert
the
wastewater
treatment
plant
but
similarly
contribute
overflow-induced
on
rainy
days.
aim
present
study
is
propose
a
control
strategy
for
regulation
IWs'
overflow
based
online
monitoring
data,
measures,
software
simulation.
results
indicate
that
during
light
rain,
from
IWs
minimal,
requiring
no
measures.
However
heavy
rainfall,
leads
an
increase
in
river's
concentration
NH3-N
0.25
3.04
mg/L.
Finally,
Simulations
demonstrate
reduction
levels
2.27
1.33
mg/L
after
implementation.
indicated
substantial
effectiveness
measures
mitigating
originating
overflows
events.
Language: Английский
Improving the identification of pollution source areas with catchment-resolution sensitivity analysis
Xia Li,
No information about this author
Ling Du,
No information about this author
Shuhui Zhang
No information about this author
et al.
Environmental Pollution,
Journal Year:
2024,
Volume and Issue:
360, P. 124658 - 124658
Published: Aug. 3, 2024
Language: Английский
Sensitivity Analysis of Urban Landscape Lake Transparency Based on Machine Learning in Taiyuan City
Sustainability,
Journal Year:
2024,
Volume and Issue:
16(16), P. 7026 - 7026
Published: Aug. 16, 2024
This
article
addresses
the
challenge
of
maintaining
water
quality
in
urban
landscape
lakes
water-scarce
cities
using
transparency
as
key
indicator.
The
sensitivity
to
nine
parameters,
including
chlorophyll
a
and
inorganic
suspended
solids,
16
city
Taiyuan
was
evaluated
Sobol
Morris
analysis
methods.
results
indicate
that
for
bodies
supplied
by
surface
water,
critical
factors
include
hydraulic
retention
time.
For
tap
solids
total
phosphorus
are
more
significant.
Water
with
dual
function
flood
control
should
focus
on
dissolved
oxygen,
ammonium
nitrogen,
chemical
oxygen
demand.
Based
these
findings,
targeted
management
strategies
proposed
enhance
algae
management,
input,
adjust
times,
aiming
improve
Taiyuan’s
landscape.
Language: Английский
Evaluation of Water Replenishment in the Northern Segment of the Yellow River Within the Beijing–Hangzhou Grand Canal, China
Jingwen Du,
No information about this author
Yourang Zan,
No information about this author
Qingmei Meng
No information about this author
et al.
Water,
Journal Year:
2024,
Volume and Issue:
17(1), P. 48 - 48
Published: Dec. 28, 2024
Recently,
frequent
water
shortages
and
reductions
in
flow
have
been
observed
the
northern
segment
of
Yellow
River
within
Beijing–Hangzhou
Grand
Canal.
In
response,
a
replenishment
program
has
initiated.
This
study
is
focused
on
section
Canal
north
uses
GSFLOW
model
to
examine
interaction
between
surface
groundwater,
as
well
effect
replenishment.
The
results
indicate
that,
after
replenishment,
efficiency
was
highest
Xiao
(64.30%),
followed
by
Wei
(39.09%),
South
(12.11%),
North
Canal,
which
exhibited
lowest
(5.75%).
variation
can
be
attributed
greater
loss
with
increasing
distance
from
source,
leading
lower
efficiency.
Surface
recharge
groundwater
extended
32
days,
effects
persisting
even
supply
ceased.
maximum
influence
either
side
canal
reached
5.73
km,
an
average
impact
1.48
resulting
total
affected
area
974.7
km2,
accounting
for
2.2%
area.
Water
positively
influenced
recovery
levels
along
Language: Английский