Anaerobic
digestion
is
a
practical,
sustainable
energy
method
that
can
help
address
the
global
crisis
and
replace
fossil
fuels.
However,
anaerobic
always
hindered
by
low
biogas
yield
generation
rate.
This
study
revealed
effects
of
chicken
bone-derived
biochar
(CB)
magnetic
(MCB)
on
co-digestion
(AcoD)
corn
straw
cow
dung.
The
results
showed
with
4
g/L
MCB
addition,
increased
54.33%,
followed
2
which
38.15%
compared
to
control.
Total
solids
(TS)
volatile
(VS)
removal
rates
75.82%
89.02%
addition
in
comparison
control
group.
carbohydrate
reducers
including
Ruminofilibacter
have
higher
hydrolysis
activity
all
reactors,
however,
Ruminiclostridium
hemi-cellulase
cellulase
producer
degrade
fibers
produce
ethanol
acetic
acid
enhanced
treated
reactor.
Methanosarcina
was
found
be
responsible
for
high
production
through
hydrogenotrophic
acetoclastic
pathways,
enriched
reactors.
findings
demonstrated
CB
AD
coupled
optimized
C/N
ratio
enabled
DIET
between
bacteria
archaea
improve
digestibility
agricultural
feedstock
production.
Molecules,
Год журнала:
2024,
Номер
29(5), С. 1005 - 1005
Опубликована: Фев. 26, 2024
Nitrogen
and
phosphorus
play
essential
roles
in
ecosystems
organisms.
However,
with
the
development
of
industry
agriculture
recent
years,
excessive
N
P
have
flowed
into
water
bodies,
leading
to
eutrophication,
algal
proliferation,
red
tides,
which
are
harmful
aquatic
Biochar
has
a
high
specific
surface
area,
abundant
functional
groups,
porous
structure,
can
effectively
adsorb
nitrogen
water,
thus
reducing
environmental
pollution,
achieving
reusability
elements.
This
article
provides
an
overview
preparation
biochar,
modification
methods
advancements
adsorption
by
factors
influencing
as
well
mechanisms.
Furthermore,
difficulties
encountered
future
research
directions
regarding
biochar
were
proposed,
providing
references
for
application
adsorption.
Environmental Technology & Innovation,
Год журнала:
2023,
Номер
32, С. 103363 - 103363
Опубликована: Сен. 11, 2023
Biomass
feedstocks
have
different
physicochemical
properties
owing
to
their
composition,
morphology,
functional
groups,
and
surface
chemistry,
leading
considerable
differences
in
the
adsorption
capacity
of
biochars.
However,
few
studies
focused
on
selecting
appropriate
biomass
for
Pb(II)
other
potentially
toxic
elements
from
wastewater.
In
addition,
effect
magnetic
modification
various
remains
unclear.
this
study,
three
types
feedstocks,
including
fir
wood,
bamboo
rice
straw,
were
used
prepare
biochars
(BFW,
BBW,
BRS)
(MagFW,
MagBW,
MagRS).
Results
showed
that
Langmuir
BRS
reached
153
mg/g
Pb(II),
which
was
approximately
2.8
1.9
times
BFW
respectively.
The
higher
primarily
resulted
its
rich
mineral
content,
relatively
high
pH,
abundant
oxygen-containing
strengthened
release
alkali/alkaline
earth
metal
cations,
precipitation
(hydro)cerussite,
ion
exchange
with
H+,
complexation
by
hydroxyl
carboxyl
groups.
Magnetic
changed
mainly
charge,
groups
biochars,
thus
improving
through
electrostatic
attraction,
exchange,
complexation.
Specifically,
MagFW
(308
mg/g)
MagBW
(284
demonstrated
a
more
pronounced
increase
than
MagRS
(297
mg/g),
because
enhanced
FeO
band.
study
suggest
application
biochar
may
be
feasible,
effective,
eco-friendly
strategy
removing
Energies,
Год журнала:
2024,
Номер
17(10), С. 2393 - 2393
Опубликована: Май 16, 2024
Anaerobic
digestion
(AD)
is
a
biological
process
that
occurs
in
the
limited
presence
of
oxygen.
This
involves
various
difficulties
during
operation,
such
as
acidification
and
increased
concentration
volatile
fatty
acids,
which
can
inhibit
methane
production.
Therefore,
this
work,
impact
biochar
on
co-digestion
untreated
sludge
residual
biomass
under
mesophilic
conditions
was
studied.
For
production
biochar,
gasification
used
at
different
temperatures:
759
°C
(BL),
798
(BM),
888
(BH).
added
concentrations
0
g/L,
3.33
6.67
g/L
beginning
process.
The
results
showed
with
BH
PBM
by
18%
compared
to
control
sample
reduced
chemical
oxygen
demand
(COD)
88%.
In
addition,
there
reduction
acids
(VFA)
42.75%.
Furthermore,
FTIR
analysis
demonstrated
has
appropriate
functional
groups
for
These
data
suggest
good
interaction
mixture
municipal
waste,
indicating
improve
anaerobic
waste.
