A Faraday-FAO56 approach for optimizing circular reuse of urban wastewater and scrap metal in crop irrigation by electrocoagulation
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 25, 2025
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/m
3,
achieved
significant
removals
(75–94%)
COD,
BOD,
TSS,
turbidity,
met
irrigation
standards.
Onsite
metal
generation
(593
kg/month)
could
accommodate
~
98,000
m
2
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.
Language: Английский
Are conductivity sensors useless for irrigators? Exploring measurement consistency around soil moisture thresholds relevant to different applications
Irrigation and Drainage,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 2, 2024
Abstract
The
cheap
conductivity‐based
sensors
favoured
by
farmers
for
soil
moisture
monitoring
remain
largely
ignored
researchers
because
of
their
low
accuracy,
which
results
in
high
uncertainty
regarding
utility
irrigators.
In
this
work,
conductivity
measurements
were
compared
with
dielectric
permittivity
ranges
relevant
to
different
applications.
showed
that
the
captured
variability
well
(
R
2
>
0.8)
throughout
full
range
tested
(0%–35%),
is
consistent
literature.
Conductivity
consistently
distinguished
dry
from
wet
conditions
p
<
0.0001)
and
reflected
lower
0.5)
but
not
higher
(>20%).
This
problematic
important
thresholds
such
as
field
capacity
saturation
are
upper
ranges.
found
lack
any
meaningful
most
applications
except
those
distinguishing
indicating
lower‐range
patterns,
arid
environments.
gives
some
merit
considering
very
cost
if
corrosion
minimised.
described
evaluation
approach
suggested
an
example
developers,
labs
extension
services
better
communicate
potential
sensor
utilities
restrictions
practitioners
improve
accessibility
decision
support
technologies.
Language: Английский