Sustainability,
Год журнала:
2024,
Номер
17(1), С. 141 - 141
Опубликована: Дек. 27, 2024
The
article
describes
the
results
obtained
by
authors
in
sludge
dewatering
through
new
processes
and
evaluating
their
performance.
research
is
part
of
sustainable
development
valorizing
agricultural
waste
composite
materials
with
applicability
constructions
from
rural
areas.
main
method
tested
this
vibratory
sieving
dewatering.
experimental
examined
three
variable
parameters:
initial
moisture,
sieve
angle,
engine
speed
causing
vibration.
A
three-factorial
experiment
was
performed
four
values
for
each
parameters
considered,
were
processed
using
descriptive
inferential
statistics.
Absolute
relative
depend
most
on
moisture
tilt
angle.
In
conclusion,
it
found
that
vibrating
can
achieve
an
almost
double
range
absolute
performance,
compared
to
pressing
However,
efficiency
superior
sieving.
As
a
matter
values,
two
studied
described
perform
below
achieved
classical
processes:
natural,
thermal,
mechanical.
Energies,
Год журнала:
2024,
Номер
17(22), С. 5736 - 5736
Опубликована: Ноя. 16, 2024
This
paper
explores
the
advantages
of
co-pyrolysis
municipal
sewage
sludge
with
agricultural
and
forestry
biomass,
emphasizing
its
potential
for
environmental
economic
benefits.
Co-pyrolysis
lignocellulosic
biomass
significantly
enhances
biochar
quality,
reduces
heavy
metal
content,
increases
porosity,
improves
nutrient
retention,
which
are
essential
soil
applications.
The
produced
through
demonstrates
enhanced
stability
a
lower
oxygen-to-carbon
(O/C)
ratio,
making
it
more
suitable
long-term
carbon
(C)
sequestration
pollutant
adsorption.
Additionally,
generates
bio-oil
syngas
improved
calorific
value,
contributing
to
renewable
energy
recovery
from
sludge.
synergistic
process
also
addresses
waste
management
challenges
by
reducing
harmful
emissions
immobilizing
metals,
thus
mitigating
risks
associated
disposal.
covers
key
sections
on
properties
materials,
improvements
in
quality
products,
benefits
co-pyrolysis,
such
as
reduction
immobilization.
highlights
trends
technology,
aiming
optimize
parameters
maximizing
yield
while
aligning
sustainability
circular
economy
goals.
concludes
recommendations
optimizing
processes
scaling
applications
support
sustainable
management.
Overall,
represents
approach
valorizing
sludge,
transforming
into
valuable
resources
supporting
conservation.
Many
systems
have
interconnected
relationships,
including
those
that
consume
energy
to
produce
water
and
energy.
These
interconnections
constitute
the
water–energy
nexus,
aspects
of
which
been
subject
recent
study.
Several
visualizations
nexus
are
available;
however,
many
do
not
readily
portray
trade-offs
between
different
technologies.
In
this
Perspective,
we
present
several
and/or
approaches
can
help
decision-makers
better
understand
trade-offs.
First,
a
quadrant
graph
with
produced/consumed
(x-axis)
(y-axis)
shows
how
fossil
fuel
renewable
energies
related
one
another
within
nexus.
Among
other
observations,
specifically
highlights
current
absence
both
As
emerging
technologies
such
as
anaerobic
wastewater
treatment
become
more
prevalent,
stakeholders
use
examine
each
compares
existing
Finally,
complementary
graph,
figure
presenting
normalization
produced
consumed
dominance
wind
power
over
evaporative
losses
impact
hydropower.
Each
these
make
improved
decisions
regarding
Nitrogen,
Год журнала:
2025,
Номер
6(2), С. 31 - 31
Опубликована: Апрель 27, 2025
Although
intensive
farming
practices
have
greatly
increased
food
production,
they
undermined
the
soil
ecosystem
services
on
which
agriculture
depends.
Biochar
application
in
soils
is
increasingly
gaining
worldwide
acceptance
as
a
means
of
addressing
these
environmental
challenges
while
enhancing
agricultural
productivity.
offers
dual
benefits
that
support
security
and
ecological
well-being
through
enhanced
fertility
plant
nutrition.
These
include
water
retention,
promotion
microbial
functioning,
carbon
sequestration,
nutrient
absorption,
among
others.
In
spite
known
benefits,
many
studies
continue
to
emphasize
roles
biochar
plays
health
crop
yields
but
often
neglect
influence
characteristics,
are
key
optimizing
services.
Thus,
it
important
understand
how
characteristics
supporting,
regulating,
provisioning
This
review
comprehensive
integrative
assessment
biochar’s
rather
than
examining
each
service
individually.
The
focus
feedstock
material
pyrolysis
temperature
determine
generated
efficacy
supplying
dynamics
for
yields.
Environments,
Год журнала:
2024,
Номер
11(10), С. 210 - 210
Опубликована: Сен. 24, 2024
Sewage
sludge
management
is
a
key
concern
in
today’s
world.
Improper
disposal
can
lead
to
various
environmental
issues
including
air,
water
and
soil
pollution.
Among
the
available
technologies,
thermal
treatments,
particularly
pyrolysis,
are
gaining
interest
for
their
ability
reduce
sewage
volume
recover
materials
energy
from
it.
This
study
explored
influence
of
some
relevant
parameters
pyrolysis
process.
The
design
experiment,
named
central
composite
design,
was
accounted
optimize
temperature,
heating
rate
residence
time
order
maximize
biochar
yield
its
CO2
adsorption
capacity.
A
two-factor
interaction
model
provided
satisfactory
interpretation
results.
Within
studied
ranges,
maximum
values
47.8
wt%
0.514
mol
CO2/kg
were
obtained
capacity,
respectively.
Two
significant
experiments
repeated
different
system
highlighting
how
other
factors
(e.g.,
reactor
geometry,
granulometry,
etc.)
quantity
quality
produced
biochar.
under
best
conditions
characterized
by
surface
area
124
m2/g
an
ash
content
61
wt%.
Lastly,
theoretical
balance
showed
that
drying
process
main
energy-intensive
step
sludge.
Sustainability,
Год журнала:
2024,
Номер
16(22), С. 9865 - 9865
Опубликована: Ноя. 12, 2024
The
increasing
scarcity
of
natural
resources
makes
the
linear
production
model
unsustainable,
highlighting
need
for
more
sustainable
practices
under
umbrella
circular
economic
principles.
Sewage
sludge
emerges
as
a
promising
solution
to
provide
soil
organic
matter
(SOM)
and
nutrients.
This
meta-analysis
evaluated
impacts
three
levels
application
(low,
medium,
high)
on
(OM),
nitrogen
(N),
phosphorus
(P),
copper
(Cu),
zinc
(Zn)
contents,
considering
different
areas
experimental
conditions
worldwide.
analysis
included
37
studies
355
comparisons,
after
screening
7625
records,
following
2020
PRISMA
protocol.
effects
concentrations,
continents,
types
experiment
(field
or
greenhouse)
were
evaluated.
significantly
increased
OM,
N,
Cu,
Zn
levels,
mainly
at
medium
high
rates.
largest
observed
in
greenhouses,
suggesting
variation
by
location
environment.
Moderators
explained
part
results,
but
residual
heterogeneity
test
revealed
that
there
is
still
unexplained
variability.
