Lifecycle Assessment of Two Urban Water Treatment Plants of Pakistan
Sustainability,
Journal Year:
2023,
Volume and Issue:
15(23), P. 16172 - 16172
Published: Nov. 21, 2023
Water
treatment
technologies
are
striving
to
retain
their
ecological
and
economic
viability
despite
the
rising
demand,
conventional
infrastructure,
financial
constraints,
fluctuating
climatic
patterns,
highly
stringent
regulations.
This
study
evaluates
lifecycle
environmental
impact
of
urban
water
systems
within
two
densely
populated
South
Asian
municipalities
Islamabad
Rawalpindi,
Pakistan.
The
scope
this
includes
a
process-based
Life
Cycle
Assessment
(LCA)
entire
system,
particularly
resources
materials
consumed
during
operation
plant.
individual
cumulative
was
assessed
based
on
system
data
an
in-depth
inventory
analysis.
Other
than
direct
emissions
environment,
electricity
used
for
service
distribution
pumping,
coagulant
use
floc
formation,
chlorine
gas
disinfection,
caustic
soda
pH
stabilization
were
processes
identified
as
most
significant
sources
air
water.
up
98%
energy
resources.
highest
global
warming
impacts
(from
0.3
0.6
kg
CO2
eq./m3)
being
from
coagulation
due
extensive
consumption.
Direct
discharge
wash
wastewater
open
environment
contributed
approximately
0.08%
kg-N
0.002%
kg-P
eutrophication
potential.
outcome
resulted
in
thorough
development,
including
possible
alternatives
enhance
sustainability.
A
definite
gap
intermittent
sampling
at
systems.
However,
more
can
provide
better
sustainability
score
each
unit
process.
Language: Английский
Wastewater-based surveillance of respiratory viruses in Northern Tuscany (Italy): Challenges and added value for public health purposes
The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
957, P. 177752 - 177752
Published: Nov. 30, 2024
During
the
COVID-19
pandemic,
wastewater-based
surveillance
(WBS)
showed
great
potential
as
an
early
warning
system
and
could
complement
human
clinical
surveillance.
This
study
aimed
to
highlight
added
value
of
WBS
for
respiratory
infections
alongside
different
systems.
Sewage
collected
at
entry
four
Wastewater
Treatment
Plants
in
Northern
Tuscany
(Italy)
were
analyzed
SARS-CoV-2,
Human
Adenovirus
(HAdV),
Respiratory
Syncytial
Virus
(RSV)
Influenza
(IV),
over
two
years.
Clinical
data
available
area,
while
other
viruses
came
from
national
virological
For
correlation
was
highly
significant
between
hospitalization
(ρ
=
0.8460),
but
not
wastewater
or
0.1682
ρ
0.0569,
respectively).
SARS-CoV-2
RNA
found
even
period
when
cases
reported,
indicating
a
continuous
community
circulation.
HAdVs
detected
74.3
%
samples,
most
sequences
identified
belonged
enteric
species
(HAdV-F41),
need
distinguishing
causing
diseases
RSV
only
winter
2022-2023,
IV
had
been
wastewater,
probably
due
poor
test
sensitivity.
In
conclusion,
although
there
may
be
various
challenges
testing
targets,
can
provide
pathogen-specific
situational
assessment
which
complements
existing
Language: Английский