Water,
Journal Year:
2024,
Volume and Issue:
16(22), P. 3276 - 3276
Published: Nov. 14, 2024
This
study
investigated
the
microbiological
and
parasitic
quality
of
sewage
sludge
treated
in
drying
beds
Algeria,
aiming
to
contribute
a
better
understanding
factors
influencing
safety
for
potential
agricultural
applications
Algerian
context.
The
research
focused
on
various
types
(liquid,
semi-solid,
solid)
their
behavior
across
different
seasons.
Standard
methods
were
employed
quantify
total
coliforms,
fecal
streptococci,
E.
coli,
Clostridium.
Controls
implemented
ensure
accuracy,
with
positive
controls
validating
detection
using
known
quantities
microorganisms
parasites,
while
negative
confirmed
absence
contamination
testing
environment.
Parasitic
was
assessed
through
microscopic
examination
protozoa
helminths.
Results
revealed
substantial
variation
microbial
concentrations
Liquid
sludge,
particularly
during
summer,
exhibited
highest
levels
coliforms
(up
7.021
log10)
coli
6.049
log10),
solid
showed
lower
counts.
Seasonal
trends
indicated
increased
warmer
months.
prevalent
81%
samples,
protozoan
cysts
(e.g.,
Giardia
intestinalis
Endolimax
nanus)
helminth
eggs
detected.
Despite
reducing
loads,
processes
alone
insufficient,
leaving
significant
contamination.
Enhanced
protocols
are
needed,
such
as
longer
periods,
chemical
disinfectants,
or
advanced
technologies
like
anaerobic
digestion
composting.
highlights
need
locally
adapted
treatment
strategies.
Furthermore,
this
provides
specific
recommendations
improving
management
practices
taking
into
account
unique
environmental
context
country.
Energies,
Journal Year:
2024,
Volume and Issue:
17(22), P. 5745 - 5745
Published: Nov. 17, 2024
Water
management
in
cities
is
a
critical
factor
for
sustainable
growth
and
development.
Satisfying
the
current
needs
with
respect
future
not
possible
without
properly
managed
water
wastewater
systems.
An
essential
element
of
systems
treatment
plant
(WWTP).
The
nexus
between
treatments
energy
demand
well-known
problem.
In
times
crisis,
effective
this
infrastructure
key
task.
purpose
article
to
analyze
WWTPs’
consumption
regard
proposed
strategies
managers,
designers
decision
makers.
A
detailed
analysis
WWTP
operational
parameters
proposal
improvement
actions
will
be
useful
applicability
benchmarking
studies.
Estimating
carbon
footprint
(CF)
selected
WWTPs
considering
indirect
emissions
due
an
important
step
developing
neutrality
WWTPs.
Due
desire
deepen
research
area
complex
phenomenon,
which
system
WWTPs,
undertaken
herein
based
on
case
study
method
three
sewage
companies
operating
southwestern
Poland.
Each
urban
has
different
specificities,
natural
conditions
needs.
presented
results
analyses
may
basis
directions
changes
national
policy,
other
studies,
improving
Sustainability,
Journal Year:
2023,
Volume and Issue:
15(23), P. 16285 - 16285
Published: Nov. 24, 2023
This
paper
presents
an
experimental
study
on
the
treatment
of
industrial
chemical
wastewater
with
a
high
organic
load;
it
is
aimed
at
process
cost
optimization
and
possible
energy
resources
recovery.
The
facility
generates
five
separate
streams
liquid
waste,
which
range
in
strength
from
practically
nil
to
400,000
mg/L,
individual
flows
ranging
2
1400
m3/d.
combined
flow
all
are
approximately
1500
mg/L
COD
m3/d,
respectively;
however,
excluding
cleaner
one
(the
cooling
condensation
water),
maximum
average
concentration
rises
115,000
16
These
wastes
currently
trucked
away
for
external
processing,
cost.
aim
was
evaluate
feasibility
onsite
facility’s
waste
recovery
water
reuse.
Various
approaches
were
examined,
including
anaerobic
biogas
preliminary
characterization,
showed
strong
inhibition
toward
biomass,
particular
methanogenesis,
induced
by
some
components.
Further
testing
led
conclusion
that
stream
segregation
processing
could
represent
most
efficient
approach
management
discharges
A
final
solution
maximizes
efficiency
reuse
combining
aerobic
proposed.
Water,
Journal Year:
2024,
Volume and Issue:
16(16), P. 2241 - 2241
Published: Aug. 8, 2024
Wastewater
treatment
plants
generate
significant
amounts
of
sludge,
a
residual
product
that
is
rich
in
nutrients,
usually
considered
waste,
and
traditionally
eliminated
by
storage
or
incineration,
methods
are
expensive,
environmentally
damaging,
often
unsustainable.
Composting
increasingly
recognized
as
an
ecological
durable
solution
for
managing
biodegradable
including
sludge
resulting
from
wastewater
treatment.
The
composting
requires
mixing
with
bulking
agents,
such
green
waste
agricultural
residues,
to
ensure
well-balanced
carbon–nitrogen
ratio.
This
mixture
undergoes
controlled
aerobic
decomposition,
sometimes
followed
post-treatment,
stabilized
final
nutrient-rich
pathogen-free
can
be
used
soil
amendment
fertilizer
different
landscaping
applications.
By
using
composting,
communities
reduce
elimination
costs,
greenhouse
gas
emissions,
minimize
the
environmental
impact
management.
paper
reviews
recent
reported
experiences
laboratory
regarding
full-scale
highlighting
particularities
processes,
influence
factors,
quality
product,
regulatory
constraints.
sustainable
contributing
nutrient
circularity,
minimizing
impact.
Water,
Journal Year:
2024,
Volume and Issue:
16(22), P. 3276 - 3276
Published: Nov. 14, 2024
This
study
investigated
the
microbiological
and
parasitic
quality
of
sewage
sludge
treated
in
drying
beds
Algeria,
aiming
to
contribute
a
better
understanding
factors
influencing
safety
for
potential
agricultural
applications
Algerian
context.
The
research
focused
on
various
types
(liquid,
semi-solid,
solid)
their
behavior
across
different
seasons.
Standard
methods
were
employed
quantify
total
coliforms,
fecal
streptococci,
E.
coli,
Clostridium.
Controls
implemented
ensure
accuracy,
with
positive
controls
validating
detection
using
known
quantities
microorganisms
parasites,
while
negative
confirmed
absence
contamination
testing
environment.
Parasitic
was
assessed
through
microscopic
examination
protozoa
helminths.
Results
revealed
substantial
variation
microbial
concentrations
Liquid
sludge,
particularly
during
summer,
exhibited
highest
levels
coliforms
(up
7.021
log10)
coli
6.049
log10),
solid
showed
lower
counts.
Seasonal
trends
indicated
increased
warmer
months.
prevalent
81%
samples,
protozoan
cysts
(e.g.,
Giardia
intestinalis
Endolimax
nanus)
helminth
eggs
detected.
Despite
reducing
loads,
processes
alone
insufficient,
leaving
significant
contamination.
Enhanced
protocols
are
needed,
such
as
longer
periods,
chemical
disinfectants,
or
advanced
technologies
like
anaerobic
digestion
composting.
highlights
need
locally
adapted
treatment
strategies.
Furthermore,
this
provides
specific
recommendations
improving
management
practices
taking
into
account
unique
environmental
context
country.
