Water Research,
Год журнала:
2020,
Номер
173, С. 115519 - 115519
Опубликована: Янв. 22, 2020
Recovering
resources
from
wastewater
systems
is
increasingly
being
emphasised.
Many
technologies
exist
or
are
under
development
for
recycling
nutrients
such
as
nitrogen
and
phosphorus
to
agriculture.
Planning
design
methodologies
needed
identify
deploy
the
most
sustainable
solutions
in
given
contexts.
For
environmental
sustainability
dimension,
life
cycle
assessment
(LCA)
can
be
used
assess
impact
potentials
of
wastewater-based
nutrient
alternatives,
especially
recycling.
This
review
aims
evaluate
how
well
LCA
methodology
has
been
adapted
applied
assessing
opportunities
form
monomineral,
multimineral,
solution
organic
solid.
We
reviewed
65
studies
that
considered
agricultural
land
application.
synthesised
some
their
insights
methodological
practices,
discussed
future
outlook
using
In
general,
more
suggested
positive
outcomes
recycling,
when
chemical
inputs
minimised,
source
separation
human
excreta
achieved.
The
shows
need
improve
consistency
(e.g.,
multifunctionality,
fertiliser
offset
accounting,
contaminant
accounting),
ensure
transparency
inventory
methods,
consider
uncertainty
comparative
context,
integrate
up-to-date
cross-disciplinary
knowledge
agriculture
science,
soil
science)
into
models,
localised
impacts
recycled
products.
applying
at
various
scales
support
decisions
on
-
instance,
performing
"product
perspective"
products,
integrating
"process
with
other
approaches
selecting
optimising
individual
recovery
processes,
emerging
integrated
resource
systems,
conducting
analysis
city,
national
global
level.
Water Research,
Год журнала:
2020,
Номер
183, С. 115988 - 115988
Опубликована: Июнь 17, 2020
Water
has
been
pushed
into
a
linear
model,
which
is
increasingly
acknowledged
of
causing
cumulative
emissions
pollutants,
waste
stocks,
and
impacting
on
the
irreversible
deterioration
water
other
resources.
Moving
towards
circular
model
in
sector,
configuration
future
infrastructure
changes
through
integration
grey
green
infrastructure,
forming
Nature-based
Solutions
(NBS)
as
an
integral
component
that
connects
human-managed
to
nature-managed
systems.
In
this
study,
thorough
appraisal
latest
literature
conducted,
providing
overview
existing
tools,
methodologies
indicators
have
used
assess
NBS
for
management,
well
complete
systems
considering
need
assessing
both
anthropogenic
natural
elements.
Furthermore,
facilitators
barriers
with
respect
policies
regulations
circularity
identified.
The
study
concludes
co-benefits
management
are
not
adequately
assessed.
A
holistic
methodology
from
perspective
still
needed
integrating
tools
(i.e.
hydro-biogeochemical
models),
methods
MFA-based
LCA)
incorporating
and/or
newly-developed
indicators.
Water Research,
Год журнала:
2021,
Номер
204, С. 117554 - 117554
Опубликована: Авг. 14, 2021
To
reduce
greenhouse
gas
emissions
and
promote
resource
recovery,
many
wastewater
treatment
operators
are
retrofitting
existing
plants
to
implement
new
technologies
for
energy,
nutrient
carbon
recovery.
In
literature,
there
is
a
lack
of
studies
that
can
unfold
the
potential
environmental
economic
impacts
transition
utilities
undertaking
transform
their
water
recovery
facilities
(WRRFs).
When
existing,
literature
mostly
based
on
simulations
rather
than
real
plant
data
pilot-scale
results.
This
study
combines
life
cycle
assessment
evaluations
quantify
an
(WWTP),
which
already
implements
energy
into
full-scale
WRRF
with
series
novel
technologies,
majority
implemented
or
tested
through
pilot-scales.
We
evaluate
five
technology
alternatives
against
current
performance
WWTP:
real-time
N2O
control,
biological
biogas
upgrading
coupled
power-to-hydrogen,
phosphorus
pre-filtration
harvest
enhanced
nitrogen
removal.
Our
results
show
lead
decrease
in
climate
change
fossil
depletion
impacts.
The
implementation
measurement
control
achieved
highest
reduction
direct
CO2-eq
(-35%),
no
significant
other
categories.
Biological
contributed
counterbalancing
indirect
by
substituting
natural
consumption
production.
Pre-filtration
increased
13%,
while
it
Enhanced
sidestream
removal
12%,
but
decreased
marine
eutrophication
14%.
reserve
base
impacts,
however,
were
configurations
implementing
power-to-hydrogen.
Environmental
improvements
generated
costs
all
except
control.
expose
possible
trade-offs
hotspots
journey
large
will
undertake
transitioning
coming
years.
