Applied Sciences,
Год журнала:
2022,
Номер
12(14), С. 7291 - 7291
Опубликована: Июль 20, 2022
The
development
of
a
sustainable
bioenergy
market
is
currently
largely
fueled
by
energy
crops,
whose
ever-increasing
production
competes
with
the
global
food
and
feed
supply.
Consequently,
non-food
crops
need
to
be
considered
as
alternatives
for
biomass
production.
Such
include
microalgal
biomass,
well
grown
on
non-agricultural
land.
aim
present
study
was
evaluate
how
co-digestion
giant
miscanthus
silage
affects
feedstock
properties,
biogas
process,
yields,
methane
fractions
digestate
profile.
Combining
microbial
found
produce
better
C/N
ratios
than
using
either
substrate
alone.
highest
rates—628.00
±
20.05
cm3/gVS
3045.56
274.06
cm3
CH4/d—were
obtained
40%
microalgae
in
feedstock.
In
all
variants,
bulk
community
consisted
bacteria
(EUB338)
archaea
(ARC915).
Energies,
Год журнала:
2023,
Номер
16(14), С. 5458 - 5458
Опубликована: Июль 18, 2023
In
agricultural
biogas
plants,
besides
biogas,
the
by-product
digestate
is
also
produced.
Due
to
its
high
moisture
content
and
organic
origin,
it
can
successfully
be
applied
in
hydrothermal
carbonization
process
avoid
fate
of
landfilling.
This
paper
reviews
properties
conversion
(HTC)
into
hydrochar
water.
The
type
feedstock
parameters
HTC
process,
such
as
temperature,
pressure
residence
time,
affects
physical
chemical
characteristics
hydrochar.
Therefore,
possible
application
might
a
biofuel,
fertilizer,
soil
improver,
adsorber,
or
catalyst.
this
paper,
derived
from
are
widely
discussed.
Energies,
Год журнала:
2024,
Номер
17(2), С. 338 - 338
Опубликована: Янв. 9, 2024
The
supply
of
waste
glycerol
is
rising
steadily,
partially
due
to
the
increased
global
production
biodiesel.
Global
biodiesel
totals
about
47.1
billion
liters
and
a
process
that
involves
co-production
glycerol,
which
accounts
for
over
12%
total
esters
produced.
Waste
also
generated
during
bioethanol
estimated
account
10%
sugar
consumed
on
average.
Therefore,
there
real
need
seek
new
technologies
reusing
neutralizing
waste,
as
well
refining
existing
ones.
Biotechnological
means
valorizing
include
converting
it
into
gas
biofuels
via
anaerobic
fermentation
processes.
Glycerol-to-bioenergy
conversion
can
be
improved
through
implementation
technologies,
use
carefully
selected
or
genetically
modified
microbial
strains,
improvement
their
metabolic
efficiency,
synthesis
enzymes.
present
study
aimed
describe
mechanisms
glycerol-to-biogas
valorization
processes
(including
methane,
hydrogen,
biohythane)
assess
examine
progress
research
work
subject
future
avenues
research.
Waste Management,
Год журнала:
2023,
Номер
173, С. 99 - 108
Опубликована: Ноя. 18, 2023
In
recent
years,
extensive
experimental
research
on
hydrothermal
carbonization
(HTC)
of
sewage
sludge
has
been
performed,
to
study
the
effects
process
conditions
hydrochar
characteristics
and
nutrient,
carbon,
energy
recovery
from
sludge.
To
promote
implementation
HTC,
this
assessed
HTC
(230
°C,
30
min)
integration
into
an
advanced
centralized
biogas
plant
by
analyzing
its
theoretical
fates
solids,
nitrogen,
phosphorus,
carbon.
The
used
mass
nutrient
flows
concentrations
obtained
laboratory
studies,
studied
had
original
layout
that
employed
hygienization.
decreased
solid
product
volume
up
56
%
and,
increased
ammonium
in
ammonia
water
33
methane
1.4
%,
while
increasing
demand
4
%.
changes
solids
their
potentials
show
need
consider
rearrangements
liquid
gas
re-dimensioning
stripping
process.
Abstract
Pyrolysis
is
an
effective
technology
for
treating
and
utilizing
biogas
residue.
To
explore
the
phosphorus
(P)
supply
capacity
of
biochar
generated
from
residue
Eichhornia
Crassipes
,
P
speciation
E.
crassipes
biomass
during
pyrolysis
(300–700
°C)
was
analyzed
by
combining
sequential
chemical
extraction,
31
nuclear
magnetic
resonance
(NMR)
K-edge
X-ray
absorption
near
edge
structure
(XANES)
spectroscopy.
treatment
promoted
conversion
amorphous
Ca-P
phases
in
into
crystalline
hydroxyapatite
(HAP)
phase,
which
matched
formation
stable
HCl-P
pools
derived
(AEBs,
22.65–82.04%)
(EBs,
13.08–33.52%)
process
pyrolysis.
Moreover,
total
contents
AEBs
(19.43–28.92
mg
g
−1
)
were
higher
than
that
EBs
(3.41–5.26
),
indicating
had
a
great
reclamation
potential.
The
release
kinetics
water
evaluated
via
incubation
experiment
360
h.
both
conformed
to
pseudo-second
order
model
(
R
2
>
0.93),
but
their
behaviors
different.
diffusion-re-adsorption
model,
while
accorded
with
diffusion-dissolution
model.
diffusive
gradients
thin-films
(DGT)
analysis
showed
could
significantly
increase
soil
available
content
as
compared
EBs.
Hence,
produced
has
good
application
potential
fertilizer.
Graphical
Clean Technologies,
Год журнала:
2024,
Номер
6(3), С. 852 - 885
Опубликована: Июль 5, 2024
To
face
the
ongoing
issues
related
to
global
warming,
a
circular
economy
approach
should
be
pursued,
rethinking
waste
management
system
and
recovery
of
organic
waste.
The
main
streams
are
Food
Waste
(FW)
municipal
Sewage
Sludge
(SS).
In
spirit
circularity,
commingled
treatment
FW
SS
could
viable
solution.
this
end,
present
work
aims
review
technical
environmental
aspects
co-treatment
through
biological
thermal
processes.
Firstly,
detailed
characterization
two
substrates
is
presented
as
well
current
future
technologies.
Then,
feasibility
impacts
conventional
co-treatments
(i.e.,
composting,
anaerobic
digestion,
combination
them),
innovative
ones
incineration,
gasification,
pyrolysis,
hydrothermal
carbonization),
summarized.
outcomes
contribute
achieving
more
sustainable
way
help
policy-making
authorities
move
toward
planning.
Sustainability,
Год журнала:
2025,
Номер
17(2), С. 416 - 416
Опубликована: Янв. 8, 2025
Global
population
growth
generates
problems
relating
to
increasing
demand
for
sustainable
energy
and
waste
treatment.
Proper
solid
management
promotes
material
reuse,
maximizes
recovery
reduces
anthropological
pressure
on
natural
resources.
Anaerobic
digestion
(AD)
is
an
alternative
method
of
stabilizing
organic
substrates
generating
biogas
as
a
source
environmentally
friendly
energy.
In
addition,
digestate
not
only
product
that
process
but
also
renewable
resource
with
many
potential
applications.
The
circular
economy
concept
encourages
the
use
nutrients
plant
improves
soil
properties.
However,
stabilized
often
contain
various
contaminants,
including
heavy
metals
(HMs)
antibiotics
are
detected
in
digestate.
Therefore,
agricultural
obtained
by
AD
could
increase
pool
these
pollutants
water
environments
contribute
their
circulation
ecosystems.
Moreover,
may
co-selection
genes
determining
resistance
HMs
environmental
microorganisms.
This
article
comprehensively
reviews
published
data
residues
antimicrobial
substances
different
digestates
around
world
maps
scope
problem.
risk
residual
levels
contaminants
has
been
evaluated.
review
highlights
lack
legal
standards
regulating
concentrations
drugs
introduced
into
results
ecological
assessment
indicate
presence
medically
important
antimicrobials
products,
especially
those
used
agriculture,
should
be
limited.
