Methane,
Год журнала:
2024,
Номер
3(3), С. 410 - 420
Опубликована: Июль 4, 2024
To
develop
technology
to
efficiently
utilize
digestate
from
methane
fermentation
in
agricultural
production,
the
application
of
for
supplying
nutrients
sweet
potato
cultivation
was
investigated
sandy
soil.
Different
strengths
diluted
with
water
were
applied
plants
as
and
nutrient
supplies
determine
appropriate
strength
production
The
growth
cultivated
also
compared
that
a
commercial
chemical
solution.
rate
tuberous
roots
1/20
greatest
among
treatments
different
(1/80–1/2)
solutions
(1/4–1).
Consequently,
we
proposed
system
using
bottom
irrigation
method
fermentation,
which
will
be
applicable
semiarid
regions.
In
conclusion,
results
this
study
can
effectively
used
regional
combined
contribute
increasing
food
well
establishment
resource
recycling
society.
Membranes,
Год журнала:
2025,
Номер
15(2), С. 45 - 45
Опубликована: Фев. 2, 2025
This
review
focuses
on
the
use
of
membrane
techniques
to
recover
nutrients
from
liquid
fraction
digestate
(LFD)
and
emphasizes
their
role
in
promoting
principles
circular
economy.
A
range
separation
processes
are
examined,
including
microfiltration
(MF),
ultrafiltration
(UF),
nanofiltration
(NF),
reverse
osmosis
(RO),
forward
(FO),
distillation
(MD)
new
tools
such
as
contactors
(MCs)
with
gas-permeable
membranes
(GPMs)
electrodialysis
(ED).
Key
aspects
that
analyzed
include
nutrient
concentration
efficiency,
integration
biological
strategies
mitigate
challenges
fouling,
high
energy
requirements
scalability.
In
addition,
innovative
hybrid
systems
pretreatment
examined
for
potential
improve
recovery
rates
sustainability.
The
also
addresses
economic
technical
barriers
full-scale
application
these
technologies
identifies
future
research
directions,
improving
materials
reducing
consumption.
comprehensive
assessment
highlights
contribution
sustainable
management
bio-based
fertilizer
production.
Energies,
Год журнала:
2025,
Номер
18(2), С. 385 - 385
Опубликована: Янв. 17, 2025
The
problem
of
food
being
wasted
in
households
has
become
an
essential
challenge
recent
years.
Food
waste
can
be
valorized
accordance
with
the
principles
sustainable
development,
including
as
a
source
energy.
This
study
analyses
potential
anaerobic
fermentation,
pyrolysis,
ethanol
incineration,
and
composting
to
treat
waste,
focusing
on
its
energy
yield.
research
considered
two
scenarios
for
generating
Poland
both
near
term
(2030)
long
(2050).
Scenarios
were
proposed
regions
different
levels
urbanization
demographic
trends.
criteria
selection
technologies
energy-efficient
processing
from
identified,
taking
into
account
current
state
these
technologies,
their
prospective
changes,
nature
regions,
trajectory
generation,
spatial
generation
rate,
potential.
Technologies
like
methane
fermentation
thermochemical
methods
should
developed
densely
populated
areas
high
rate.
Among
processes,
fast
pyrolysis
will
provide
most
significant
benefits,
followed
by
moderate
biocarbonization—at
similar
levels.
Incineration
is
placed
between
carbonization
gasification.
In
less
lower
rates,
combining
substrates
co-processing
green
considered.
Biocarbonization
systems
integrated
rural
regions.
Journal of Hazardous Materials,
Год журнала:
2025,
Номер
unknown, С. 138015 - 138015
Опубликована: Март 1, 2025
Significant
share
of
microplastics
entering
wastewater
treatment
is
accumulated
in
sewage
sludge,
which
commonly
treated
by
anaerobic
digestion.
The
digestate
typically
separated
to
solid
and
liquid
fractions,
the
fraction
often
land-applied.
However,
division
between
these
fractions
poorly
understood.
Thus,
we
investigated
occurrence
(>20
μm)
at
an
digester
subsequent
solid-liquid
separation.
Sewage
sludge
exhibited
7600
±
6800
7200
1100
per
g
dry
weight,
respectively,
indicating
that
digestion
can
decrease
fluctuation
microplastics'
sludge.
microplastic
flow
was
predominantly
directed
fraction,
while
carried
about
1
%
microplastics,
mostly
polymers
with
low
density
(polyethylene
polypropylene).
We
also
factors
affecting
identification
Raman
spectroscopy.
Microplastic
degradation
presence
organic
matter
after
oxidative
sample
preparation,
affected
spectra
different
microplastics.
For
polyethylene
polypropylene,
changes
did
not
interfere
recognizing
their
characteristic
peaks,
allowing
high-certainty
identification.
In
contrast,
polyamide
notably
compromised
as
signal-to-noise
ratio
be
deteriorated
natural
misidentified
polyamide.
Sustainability,
Год журнала:
2025,
Номер
17(8), С. 3289 - 3289
Опубликована: Апрель 8, 2025
In
line
with
the
concept
of
sustainable
agriculture,
efforts
should
be
made
to
increase
green
energy
yield
and
minimize
environmental
impact
mineral
fertilizers,
maintaining
high
agricultural
productivity.
alignment
principles
development,
plant
biomass-based
is
considered
promising.
A
deep
understanding
enhancements
anaerobic
digestion
process
using
biomass,
along
digestate
post-treatment
for
regenerative
agriculture
improvements,
are
key
elements
achieve
sustainability
goals.
This
article
describes
innovative
methods
biomass
pre-treatment
aimed
at
enhancing
biogas
fertilizing
potential
obtained
digestate.
Moreover,
valuable
insights
into
conditioning
valorization
discussed.
Among
these,
separation
stabilization
techniques
emphasized.
Furthermore,
this
provides
a
comprehensive
source
knowledge
on
soil
quality,
fertility,
organic
carbon
sequestration,
microbiota.
The
findings
contribute
broader
how
impacts
agriculture.
Atmosphere,
Год журнала:
2025,
Номер
16(5), С. 509 - 509
Опубликована: Апрель 28, 2025
The
environmental
impact
of
livestock
by-products
presents
significant
challenges,
particularly
in
regions
with
intensive
farming
and
high
pollution
levels,
such
as
the
Po
Valley.
This
study
evaluated
effectiveness
biochar
wood
vinegar
reducing
gaseous
emissions
during
laboratory-scale
storage
slurry,
digestate,
liquid
fractions.
Various
types
applications
biochar,
both
without
vinegar,
were
tested
across
three
independent
incubation
periods
varying
durations.
results
showed
that
ammonia
(NH3)
lower
from
slurry
compared
to
raw
digestate
fraction,
while
methane
(CH4)
exhibited
opposite
trend.
Pyrolysis
effectively
reduced
NH3
by
47%
on
average
when
applied
a
5
cm
surface
layer.
However,
its
was
inconsistent
mixed
into
material
or
produced
via
gasification.
Biochar
activated
significantly
61%,
but
it
also
led
increased
CH4
CO2.
Nitrous
oxide
(N2O)
detected
only
after
at
least
one
month
higher
used
cover
alone
vinegar.
Overall,
applying
activating
proved
effective
by-products.
varied
depending
type
method
application,
respect
emissions,
highlighting
need
for
careful
consideration
using
vinegar-activated
biochar.
Bioresource Technology,
Год журнала:
2024,
Номер
416, С. 131804 - 131804
Опубликована: Ноя. 12, 2024
Phosphorus
(P)
is
critical
for
plant
growth,
but
global
reserves
are
exhausting
within
250-300
years,
therefore
enhancing
phosphate
recycling
crucial
the
future.
Biogas
digestate,
rich
with
nutrients
a
promising
resource
nutrient
recovery.
Conventional
solid-liquid
separation
shifts
approximately
35
%
of
total
P
in
digestate
to
solid
phase.
Separation
trials
additive
treatment
using
screw
press
0.75
mm
sieve
were
performed
at
University
Hohenheim's
full-scale
biogas
plant.
After
22
h,
67.41
(kieserite
treatment)
and
52.35
(strawflour
shifted
Treatment
kieserite
enhanced
shift
into
phase
by
forming
non-labile
fractions
through
chemical
bond
between
Mg
