The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
957, P. 177360 - 177360
Published: Nov. 16, 2024
Wastewater
treatment
plants
(WWTP)
are
recognized
as
major
sources
of
microplastic
(MP)
particles
in
terrestrial
environments,
particularly
agricultural
soils
through
biosolids
application.
While
many
reviews
have
focused
on
the
distribution,
detection,
and
mitigation
MPs
wastewater
effluent
to
limit
their
discharge
into
oceans,
our
understanding
methods
mitigate
biosolid
contamination
remains
limited.
This
review
focuses
for
mitigating
at
various
intervention
points,
including
sources,
WWTP
primary
secondary
stages
where
sludge
is
generated,
post-contamination.
These
categorized
physical,
physicochemical,
biological
approaches,
advantages
limitations
discussed.
For
instance,
physicochemical
methods,
especially
froth
flotation,
cost-effective
but
hindered
by
contaminants
reagents.
Physical
like
microfibre
filtration
devices
(MFD)
safe
efficiency
depends
filter
pore
size
design.
Biological
microbial
degradation,
limited
varying
efficiencies
microorganisms
breaking
down
extended
time
required
effective
degradation.
Other
physical
dissolved
air
ultrasonication
already
exist
WWTPs
may
require
retrofitting
or
optimization
enhance
MP
removal
from
biosolids.
As
each
method
inherently
has
limitations,
key
achieving
MP-free
biosolids,
thus
preventing
release
soil,
lies
integrating
these
multi-coupling
strategies.
Energies,
Journal Year:
2022,
Volume and Issue:
15(15), P. 5633 - 5633
Published: Aug. 3, 2022
Municipal
sewage
sludge
is
the
residual
material
produced
as
a
waste
of
municipal
wastewater
purification.
It
sophisticated
multi-component
material,
hard
to
handle.
For
many
years,
it
has
been
landfilled,
incinerated,
and
widely
used
in
agriculture
practice.
When
unproperly
discharged,
very
polluting
unhealthy.
The
rapidly
increasing
global
amount
annually
depends
on
urbanization,
degree
development,
lifestyle.
Some
diffused
traditional
practices
were
banned
or
became
economically
unfeasible
unacceptable
by
communities.
In
contrast,
established
that
MSS
contains
valuable
resources,
which
can
be
utilized
energy
fertilizer.
objective
review
was
prove
resource
recovery
beneficially
affordable
using
modern
approaches
proper
technologies
estimate
required
resources
time.
open
sources
information
deeply
mined,
critically
examined,
selected
derive
necessary
regarding
each
network
segment,
from
source
final
point,
where
disposed
of.
We
found
developed
some
developing
countries
are
involved
with
ambitious
costly
plans
for
remediation,
modernization
regulations,
collecting
purification
systems,
beneficial
management
approach.
also
activated
process
leading
technology
purification,
anaerobic
digestion
downstream
waste.
However,
biological
appear
inadequate
hydrothermal
carbonization,
already
applicable
at
full
scale,
best
candidate
playing
significant
role
managing
big
towns
small
villages.
The Science of The Total Environment,
Journal Year:
2023,
Volume and Issue:
875, P. 162555 - 162555
Published: March 6, 2023
Soil
application
of
biosolids
as
an
organic
fertiliser
continues
to
be
a
cost-effective
way
beneficially
utilise
its
carbon
and
nutrient
contents
maintain
soil
fertility.
However,
ongoing
concerns
over
microplastics
persistent
contaminants
means
that
land-application
has
come
under
increased
scrutiny.
To
identify
forward
for
the
future
use
biosolids-derived
fertilisers
in
agriculture,
current
work
presents
critical
review
of:
(1)
concern
how
regulatory
approaches
can
address
these
enable
on-going
beneficial
reuse,
(2)
bioavailability
understand
agronomic
potential,
(3)
developments
extractive
technologies
preserve
recover
nutrients
from
before
destructive
dissipation
when
are
thermally
processed
deal
with
(e.g.
microplastics),
(4)
recovered
nutrients,
biochar
produced
by
thermal
processing,
novel
organomineral
match
specific
equipment,
crop
requirements
broad-acre
cropping.
Several
challenges
were
identified
recommendations
prioritisation
research
development
provided
safe
reuse
fertilisers.
Opportunities
include
more
efficient
preserve,
extract
sewage
sludge
biosolids,
production
products
characteristics
reliable
widespread
across
agriculture.
Journal of Cleaner Production,
Journal Year:
2024,
Volume and Issue:
455, P. 142375 - 142375
Published: April 29, 2024
To
achieve
a
closed
nutrient
cycle
and
more
sustainable
food
production,
enhanced
recycling
in
the
agri-food
system
is
necessity.
Pyrolysis
an
emerging
technology
to
recycle
content
of
sewage
sludge.
The
produced
biochar
can
be
used
reduce
need
for
mineral
fertilizers;
addition,
pyrolysis
also
handle
potential
pollutants
such
as
microplastics
pathogens
present
In
this
research,
life
assessment
(LCA)
was
carried
out
determine
environmental
impact
sludge
alternative
current
practices
two
different
cases
treatment
municipalities
Sweden.
results
indicated
that
avoiding
fertilizer
production
by
using
has
significant
influence
on
benefits.
Furthermore,
it
showed
integrated
anaerobic
digestion
followed
could
perform
most
environmental-friendly
option
with
lower
risk
transferring
pollution
soil.
Waste Management,
Journal Year:
2024,
Volume and Issue:
176, P. 85 - 104
Published: Jan. 23, 2024
Application
of
biosolids
to
agricultural
land
has
gained
increasing
attention
due
their
rich
nutrient
content.
There
are
a
variety
treatment
processes
for
converting
sewage
sludge
biosolids.
Different
can
change
the
physicochemical
properties
raw
and
affect
dynamics
release
in
biosolids-amended
soils.
This
paper
reviews
heat
drying,
alkaline
treatment,
composting
as
discusses
effects
these
treatments
on
biosolid
nitrogen
(N)
content
availability.
Most
N
remain
organic
forms,
regardless
type
but
considerable
variation
exists
mean
values
total
mineralizable
across
different
types
The
highest
was
recorded
heat-dried
(HDB)
(4.92%),
followed
by
composted
(CB)
(2.25%)
alkaline-treated
(ATB)
(2.14%).
value
similar
between
HDB
ATB,
with
broader
range
ATB.
lowest
availability
observed
CB.
Although
many
models
have
been
extensively
studied
predicting
potential
mineralization
soils
amended
amendments,
limited
research
attempted
model
soil
following
application.
With
being
popular,
economical,
eco-friendly
alternative
chemical
N-fertilizers,
understanding
is
important
developing
sound
management
system.
Moreover,
modeling
essential
adoption
sustainable
farming
practices
that
maximize
agronomic
all
ACS Sustainable Resource Management,
Journal Year:
2024,
Volume and Issue:
1(2), P. 181 - 198
Published: Jan. 29, 2024
The
paper
provides
an
overview
of
the
potential
use
humic
substances
(HS)
derived
from
organic
waste
in
transforming
management
practices.
It
discusses
various
types
waste,
production
methods
HS,
and
their
applications
agriculture,
environmental
remediation,
industry.
Perspective
emphasizes
transformative
HS
reshaping
practices,
highlighting
improved
soil
fertility,
mitigation
degradation,
immobilization
pollutants
water
systems.
Additionally,
it
explores
economic
viability
HS-based
revenue
streams
value-added
products
HS.
also
addresses
regulatory
considerations,
emphasizing
importance
comprehensive
frameworks,
international
policy
support,
continuous
monitoring
evaluation
By
integrating
into
circular
economy
models,
suggests
that
can
contribute
to
resource
conservation,
nutrient
recycling,
development
a
bio-based
economy.
Overall,
utilization
has
revolutionize
field
sustainable
recovery.
future
research
should
continue
explore
quantifiable
benefits
management,
ultimately
contributing
more
efficient
system.
