Aquacultural Engineering,
Journal Year:
2023,
Volume and Issue:
101, P. 102328 - 102328
Published: March 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.
Current Research in Environmental Sustainability,
Journal Year:
2022,
Volume and Issue:
4, P. 100164 - 100164
Published: Jan. 1, 2022
Seafood
production
in
required
quantities
is
facing
increasing
pressures
due
to
reasons
such
as
rising
population,
demand,
overfishing,
landing
of
by-catch,
climate
change-related
biodiversity
changes,
extinction
species
and
others.
At
the
same
time,
industrial
value
added
fishery
products
generates
significant
amounts
nutrient-rich
discards,
besides
voluminous
amount
process
effluents.
These
by-catch
effluents
are
rich
sources
nutrients,
industrially
important
ingredients
also
bio-energy.
Developments
marine
biotechnology
offer
novel
eco-
friendly
green
processes
for
bio-refining
discarded
seafood
portions.
This
article
discusses
potentials
processing
valorization
discards
towards
zero
waste
that
can
improve
sustainable
supply
chain.
The
generally
make
use
bioconversions
release
components
attached
food
matrices,
which
extracted
by
suitable
downstream
techniques.
Algal
biorefinery-based
approaches
have
scope
commercial
scale
discards.
Because
their
functional
nature,
isolated
valuable
applications
health,
therapeutic
industries
other
fields.
Green
encourage
zero-waste
processing,
environmental
protection,
blue
economy
has
potential
realize
Sustainable
Developmental
Goals
(SDGs)
United
nations,
particularly
SDG
#12.3.
Bioresource Technology,
Journal Year:
2024,
Volume and Issue:
407, P. 131107 - 131107
Published: July 14, 2024
In
recirculating
aquaculture
systems
(RAS),
waste
management
of
nutrient-rich
byproducts
accounts
for
30–50%
the
whole
production
costs.
Integrating
microalgae
into
RAS
offers
complementary
solutions
transforming
streams
valuable
co-products.
This
review
aims
to
provide
an
overview
recent
advances
in
application
enhance
performance
and
derive
value
from
all
by
using
effluents
as
microalgal
nutrient
sources.
Aquaculture
solid
can
be
converted
hydrothermal
liquefaction
(HTL),
then
resultant
aqueous
phase
HTL
used
cultivation.
addition,
generate
required
oxygen
while
sequestering
carbon
dioxide.
The
suggests
a
novel
integrated
system
focusing
on
oxygenation
dioxide
capture
along
with
technological
developments
concerning
efficient
cultivation
recovery
techniques.
such
system,
microalgae-based
biorefineries
environmentally-conscious
economically-viable
pathways
enhanced
conversion
high-value
products.
Reviews in Environmental Science and Bio/Technology,
Journal Year:
2023,
Volume and Issue:
22(4), P. 969 - 1008
Published: Oct. 13, 2023
Abstract
The
aquaculture
industry
is
rapidly
developing,
generating
a
high
amount
of
wastewater.
Inland
effluents
contain
nutrients
and
other
substances
that
can
cause
eutrophication
the
emergence
resistive
organisms
if
released
into
environment.
Hence,
wastewater
should
be
treated
appropriately
for
reuse
in
different
applications
or
safely
environment,
promoting
sustainable
circular
economy.
current
review
provides
insight
generation,
constituents,
treatment
through
various
technologies.
This
study’s
technologies
could
classified
as
physical,
chemical,
biological.
SWOT
analysis
was
conducted
on
each
technology
to
provide
an
in-depth
understanding
advantages
drawbacks.
Suggestions
were
also
stated
shed
light
importance
means
transition
toward
Graphical
abstract
Fermentation,
Journal Year:
2022,
Volume and Issue:
8(12), P. 728 - 728
Published: Dec. 12, 2022
Recycling
bioresources
is
the
only
way
to
sustainably
meet
a
growing
world
population’s
food
and
energy
needs.
One
of
ways
do
so
by
using
agro-industry
wastewater
cultivate
microalgae.
While
industrial
production
microalgae
requires
large
volumes
water,
existing
processes
generate
with
eutrophicating
nutrients
organic
carbon
that
must
be
removed
before
recycling
water
back
into
environment.
Coupling
these
two
can
benefit
flourishing
microalgal
industry,
which
agro-industry,
could
gain
extra
revenue
converting
waste
stream
bioproduct.
Microalgal
biomass
used
produce
energy,
nutritional
biomass,
specialty
products.
However,
there
are
challenges
establishing
stable
circular
processes,
from
selection
adaptation
pretreating
reclaiming
residues.
This
review
discusses
potential
residues
for
production,
particular
interest
in
composition
use
important
primary
(raw)
secondary
(digestate)
effluents
generated
volumes:
sugarcane
vinasse,
palm
oil
mill
effluent,
cassava
processing
waster,
abattoir
wastewater,
dairy
aquaculture
wastewater.
It
also
overviews
recent
examples
aspects
process
integration
possible
products,
avoiding
xenobiotics
heavy
metal
recycling.
As
virtually
all
agro-industries
have
boilers
emitting
CO2
use,
many
industries
anaerobic
digestion
reclaim
cultivation,
gaseous
discussed
text.