A Faraday-FAO56 approach for optimizing circular reuse of urban wastewater and scrap metal in crop irrigation by electrocoagulation
Abstract
Wastewater
treatment
by
electrocoagulation
(EC)
using
waste-derived
electrodes
is
an
emerging
and
promising
solution
for
closing
resource
loops
at
urban-irrigated
intersections.
However,
there
a
knowledge
gap
in
integrating
crop
water
dynamics
into
this
application.
This
article
presents
framework
to
integrate
agrometeorological
analysis
(FAO56
model)
waste
information
energy
electrochemical
models
(Faraday’s
laws
of
dissolution).
The
model
was
parameterized
study
site
comprising
large
institution
surrounded
irrigated
trees.
On-site
experiments
showed
that
dosages
aluminum
(Al)
iron
(Fe)
scrap,
as
low
0.2–0.6
g/m3,
achieved
significant
removals
(75–94%)
COD,
BOD,
TSS,
turbidity,
met
irrigation
standards.
Onsite
metal
generation
(593
kg/month)
could
accommodate
~
98,000
m2
surrounding
lands.
Crop
production
capacities
scrap
metals
(food
per
scrap)
were
estimated
reach
23.3
kg/kg,
specifically
Al
scrap.
Energy
demand
be
maintained
steady
0.58
kWh/m³
dynamics,
allowing
flexible
renewable
integration.
Validation
components
revealed
estimating
comprised
larger
uncertainty
than
modeling
electrode
consumption.
reuse
shows
potential
WEFE
nexus
application
but
raises
some
socioeconomic
concerns
such
impacts
on
scavengers’
livelihoods.
Pilot-scale
wider
assessments
are
strongly
encouraged
gain
improved
insights.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown
Published: March 25, 2025
Language: Английский