Waste Management,
Год журнала:
2024,
Номер
177, С. 203 - 210
Опубликована: Фев. 9, 2024
Fish
canning
industries
generate
large
amounts
of
solid
waste
during
their
processing
operations,
creating
a
significant
environmental
challenge.
Nonetheless,
this
can
be
efficiently
and
sustainably
treated
through
anaerobic
digestion.
In
study,
the
potential
biogas
production
from
digestion
thermally
pretreated
co-digested
tuna
was
investigated.
The
thermal
pretreatment
raw
fish
viscera
resulted
in
50
%
increase
methane
yield,
with
0.27
g
COD-CH
AgriEngineering,
Год журнала:
2025,
Номер
7(5), С. 129 - 129
Опубликована: Апрель 23, 2025
Aquaponics
integrates
aquaculture
and
hydroponics,
promoting
circularity
through
the
recirculation
of
water
nutrients.
However,
waste
management
remains
a
challenge.
This
study
aimed
to
evaluate
anaerobic
digestion
(AD)
aquaponic
effluent
(AE)
combined
with
cattle
manure
(CM)
for
biogas
production.
An
Indian
model
biodigester
was
fed
AE,
CM
1:1,
1:3,
3:1
W
(Water):CM,
under
mono-digestion
(MoAD)
AE:CM
co-digestion
(CoAD)
conditions.
The
chemical
characteristics
substrates
digestates
were
assessed,
as
well
potential
production
over
19
weeks.
Overall,
CoAD
provided
better
results
regarding
characterization
at
Notably,
1:3
ratio
resulted
in
most
promising
outcomes
among
tested
demonstrated
higher
efficiency,
initiating
by
third
week
reaching
highest
accumulated
volume.
It
is
probable
that
AE
increased
dissolved
organic
load,
optimizing
conversion
matter
eliminating
need
additional
process.
Thus,
emerged
alternative
valorization
aquaponics,
contributing
renewable
energy
generation,
agricultural
sustainability,
promotion
circular
economy.
Aquacultural Engineering,
Год журнала:
2023,
Номер
101, С. 102328 - 102328
Опубликована: Март 11, 2023
The
rapid
expansion
of
the
aquaculture
industry
has
brought
about
a
heightened
focus
on
waste
produced
by
high
intensity
fish
farming.
In
closed-containment,
recirculating
systems
(RAS),
solids
are
mechanically
separated
and/or
coagulated
before
being
disposed
as
waste.
Subsequent
revalorization
is
typically
limited
to
direct
dispersal
onto
agricultural
fields.
Here,
we
developed
novel,
continuous
flow,
low-cost
treatment
system
for
freshwater
and
saline
RAS.
Rotating
drum
filter
backwash
was
collected
primary
feedstock
anaerobic
digestion.
A
laboratory
scale
set
up
used
monitor
conversion
into
methane-rich
(60–80%
purity)
biogas
stream.
Iron
supplementation
(ferric
iron
at
100
mg/L
1000
mg/L)
improved
salt
tolerance
methanogenic
community,
leading
higher
methane
yields
in
supplemented
(FeCl3
than
control.
application
additionally
improves
pH
stability
volatile
fatty
acid
utilization.
yield
ranged
from
0.1
0.4
NL
CH4/
g
VS
across
three
treatments
iron-supplemented
treatment,
however,
it
significantly
lower
saltwater
control:
ranging
between
0.08
0.25
VS.
These
values
correspond
percentage
57–86%
total
biomethane
potential.
Overall,
implementing
digestion
RAS
valorization
may
generate
significant
amounts
be
electricity
heating
large-scale
facilities,
while
even
smaller
facilities
off-set
costs
mitigate
environmental
impacts
streams.
Waste Management,
Год журнала:
2024,
Номер
177, С. 203 - 210
Опубликована: Фев. 9, 2024
Fish
canning
industries
generate
large
amounts
of
solid
waste
during
their
processing
operations,
creating
a
significant
environmental
challenge.
Nonetheless,
this
can
be
efficiently
and
sustainably
treated
through
anaerobic
digestion.
In
study,
the
potential
biogas
production
from
digestion
thermally
pretreated
co-digested
tuna
was
investigated.
The
thermal
pretreatment
raw
fish
viscera
resulted
in
50
%
increase
methane
yield,
with
0.27
g
COD-CH
