Chemosphere,
Journal Year:
2024,
Volume and Issue:
364, P. 143223 - 143223
Published: Aug. 31, 2024
Subcritical
wet
oxidation
(SWO)
is
an
environmentally-friendly
solution
for
sewage
sludge
volume
reduction.
However,
little
study
has
comprehensively
optimised
SWO
conditions
across
various
aspects.
This
developed
a
multi-objective
model
using
genetic
algorithms
(GAs)
to
optimise
conditions,
considering
deconstruction,
emissions,
energy
balance,
and
resource
recovery.
The
multi-criteria
optimisation
approach
highlights
the
significant
environmental
benefits
of
SWO,
including
substantial
reduction
effective
pollutant
removal.
An
in-depth
analysis
temperature,
reaction
time,
severity
factor
revealed
their
critical
roles
in
enhancing
deconstruction
recovery
efficiency.
GAs
predicted
optimal
at
271
±
2
°C
51
1
min,
with
confirmation
experiments
showing
only
12%
discrepancy
between
actual
outcomes.
provides
practical
insights
efficient
treatment
sustainable
wastewater
management.
Cleaner Waste Systems,
Journal Year:
2024,
Volume and Issue:
7, P. 100130 - 100130
Published: Jan. 21, 2024
In
response
to
increasing
global
waste
generation
due
population
growth,
urbanization,
and
industrialization,
wastewater
treatment
operations
should
shift
from
being
solely
energy
consumers
becoming
producers
by
harnessing
sludge
(WWS).
This
approach
holds
great
potential
for
meeting
demands
addressing
the
challenges
of
treatment.
The
recovery
heat
electrical
WWS
offers
a
viable
solution
reduce
costs
within
WWTPs.
Thermochemical
technologies
such
as
pyrolysis,
gasification,
combustion
hold
their
efficiency,
reaction
times,
retrieval
capabilities.
These
demonstrate
feasibility
in
terms
operational
costs,
circular
economy
principles,
socio-environmental
impact,
thanks
ongoing
advancements
waste-to-energy
research.
review
aims
explore
recovering
bioenergy
(biogas
or
syngas)
generate
energy,
including
heat,
electricity,
other
innovative
products.
article
provides
critical
comprehensive
examination
thermochemical
technologies,
taking
into
account
technological,
economic,
factors.
It
then
presents
integration
techniques
that
effectively
combine
anaerobic
digestion
with
conversion
enhance
syngas,
biogas,
flue-gas
energy.
results
this
study
underscore
significant
sludge-to-energy
schemes.
Analytical Sciences,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 18, 2025
Biochar
(BC),
often
obtained
via
thermochemical
conversion
methods
of
biomass,
has
emerged
as
a
versatile
material
with
significant
potential
in
electrochemical
sensing
applications.
This
review
critically
examines
the
recent
advancements
development
BC-based
sensors
for
determination
pharmaceuticals,
pesticides,
heavy
metals,
phenolic
compounds,
and
microplastics.
have
promising
alternative
due
to
their
sustainability,
cost-effectiveness,
excellent
properties.
The
unique
physicochemical
properties
BC,
including
its
high
surface
area,
porosity,
functional
groups,
contribute
effectiveness
sensor
material.
begins
an
overview
synthesis
highlighting
activation
strategies
on
structural
Next,
functionalization
BC
integration
into
platforms
are
explored.
performance
is
evaluated
using
focusing
sensitivity,
selectivity,
detection
limits,
stability.
Future
directions
research
proposed,
emphasizing
need
further
optimization,
miniaturization,
portable
on-site
analytical
devices.
Environmental Science Advances,
Journal Year:
2024,
Volume and Issue:
3(9), P. 1197 - 1216
Published: Jan. 1, 2024
Integrating
thermochemical–biochemical
methods
overcomes
the
single-path
limits
for
bioenergy
production.
This
synergy
lowers
costs
and
enhances
energy
sustainability,
highlighting
waste-to-energy's
vital
role
in
circular
economy
transition.
Clean Technologies,
Journal Year:
2024,
Volume and Issue:
6(2), P. 432 - 452
Published: April 9, 2024
In
the
past
few
decades,
solar
energy
market
has
increased
significantly,
with
an
increasing
number
of
photovoltaic
(PV)
modules
being
deployed
around
world
each
year.
Some
believe
that
these
PV
have
a
lifespan
25–30
years.
As
their
lifetime
is
limited,
panels
wind
up
in
waste
stream
after
end
life
(EoL).
Several
ecological
challenges
are
associated
inappropriate
disposal
due
to
presence
hazardous
heavy
metals
(HMs).
studies
reported
different
treatment
technologies,
including
pyrolysis,
stabilization,
physical
separation,
landfill,
and
use
chemicals.
Each
proposed
technique
pollutes
environment
underutilizes
potential
resources
present
discarded
(DSPs).
This
review
recommends
thermal
plasma
pyrolysis
as
promising
technology.
process
will
significant
advantages,
such
preventing
toxic
HMs
from
contaminating
soil
groundwater,
reducing
amount
e-waste
DSPs
environmentally
friendly
economical
way,
allows
utilization
valuable
contained
EoL
panel
by
converting
them
into
hydrogen-rich
syngas
generate
energy,
electricity,
non-leachable
slag
can
be
used
additive
other
processes
or
conditioner
improve
properties.
However,
uses
high
temperature
break
down
materials,
challenge
which
offset
integration
this
anaerobic
digestion
(AD),
AD
treatments
produce
yields
biogas
nutrient
recovery.
Moreover,
produced
both
operate
entire
plant
they
take
place
increase
net
production,
resource
sold
for
additional
income.
Future
recommendations
also
highlighted.
Molecules,
Journal Year:
2025,
Volume and Issue:
30(2), P. 215 - 215
Published: Jan. 7, 2025
The
increasing
global
population
and
urbanization
have
led
to
significant
challenges
in
waste
management,
particularly
concerning
vacuum
blackwater
(VBW),
which
is
the
wastewater
generated
from
toilets.
Traditional
treatment
methods,
such
as
landfilling
composting,
often
fall
short
terms
of
efficiency
sustainability.
Anaerobic
digestion
(AD)
has
emerged
a
promising
alternative,
offering
benefits
biogas
production
digestate
generation.
However,
performance
AD
can
be
influenced
by
various
factors,
including
composition
feedstock,
pH
levels,
presence
inhibitors.
This
review
investigates
effects
calcium
oxide
(CaO)-modified
biochar
(BC)
an
additive
VBW.
Modifying
BC
with
CaO
enhances
its
alkalinity,
nutrient
retention,
adsorption
capacity,
creating
more
favorable
environment
for
microorganisms
promoting
production,
serves
valuable
source
heat,
fuel
electricity.
Additionally,
processed
through
plasma
pyrolysis
ensure
complete
destruction
pathogens
while
resource
utilization.
Plasma
operates
at
extremely
high
temperatures,
effectively
sterilizing
eliminating
both
harmful
contaminants.
process
not
only
guarantees
safety
end
products,
but
also
transforms
organic
materials
into
outputs
syngas
slag.
produced
versatile
energy
carrier
that
utilized
hydrogen,
electricity,
making
it
applications,
cells
power
Furthermore,
slag
potential
reuse
or
biofertilizer
enhance
soil
properties.
study
aims
provide
insights
using
modified
co-substrate
systems.
findings
will
contribute
development
sustainable
efficient
management
strategies,
addressing
associated
VBW
renewable
production.
