Problems of Water supply Sewerage and Hydraulic,
Journal Year:
2024,
Volume and Issue:
48, P. 12 - 17
Published: Dec. 12, 2024
The
sewage
sludge
formed
at
wastewater
treatment
plants
constitutes
a
small
percentage
of
the
volume
treated
wastewater.
However,
costs
associated
with
and
disposal
account
for
lion's
share
operational
expenses
plants.
contains
harmful
toxic
substances.
On
other
hand,
is
source
carbon,
nutrients,
trace
elements,
meaning
it
can
be
effectively
utilized.
An
important
stage
in
its
dewatering,
particularly
use
electric
current.
study
investigated
electro-dewatering
activated
moisture
content
98%
from
secondary
clarifiers
Ternopil
plant
using
direct
Experiments
were
conducted
on
laboratory
setup
U-shaped
glass
tube
carbon
rod
anode
cathode.
effect
field
was
observed
during
fading
period,
when,
after
significant
amount
water
had
been
separated
sludge,
process
slowed
down.
obtained
results
compared
those
graphite
flat
cathode,
as
reported
by
researchers.
Electro-dewatering
both
setups
produced
practically
same
effect.
It
confirmed
that
dewatering
current
applied
drying
beds
Algorithms,
Journal Year:
2024,
Volume and Issue:
17(12), P. 592 - 592
Published: Dec. 21, 2024
This
paper
presents
an
integrated
approach
based
on
physical–mathematical
models
and
numerical
simulations
to
optimize
sludge
treatment
using
ultrasound.
The
main
objective
is
improve
the
efficiency
of
purification
system
by
reducing
weight
moisture
sludge,
therefore
ensuring
regulatory
compliance
environmental
sustainability.
A
coupled
temperature–humidity
model,
formulated
partial
differential
equations,
describes
materials’
thermal
water
evolution
during
treatment.
resolution,
implemented
finite
element
method
(FEM),
allows
simulation
behavior
optimization
operating
parameters.
Experimental
results
confirm
that
ultrasonic
reduces
content
up
20%
improves
its
stability,
making
it
suitable
for
agricultural
applications
or
further
Functional
controls
sonication
reduction
in
correlate
with
obtained
results.
Ultrasound
has
been
shown
decrease
specific
sample
both
pretreatment
treatment,
improving
stabilization.
In
various
experimental
conditions,
reduced
a
maximum
about
50%.
Processed
transforms
waste
into
resource
sector.
Treatment
processes
have
optimized
low-energy
principles.
Additionally,
besides
utilizing
energy-harvesting
technology,
plant
optimized,
accounting
approximately
55%
consumption
due
aeration
active
sludge.
addition,
extended
analysis
wave
propagation
proposed.
