Owing
to
the
virtues
of
high
efficiency,
green
and
sustainability,
microalgae
photobioreactor
(PBR)
is
coupled
with
microbial
fuel
cell
(MFC)
achieve
CO2
fixation
electricity/bioenergy
collection.
In
this
paper,
a
novel
self-breathing
oxygen-consuming
carbon
felt
(SOC)
firstly
proposed.
It
subsequently
integrated
into
PBR-MFC
optimize
O2
concentration
distribution
separate
microalgae/bacteria.
The
results
show
that
solution
environment
(pH,
dissolved
oxygen
internal
resistance)
coupling
system
are
significantly
regulated
by
SOC.
pH
electrolyte
in
cathode
increased
2.9%
6.1%,
respectively,
compared
without
anode,
system’s
Rohm
RCT
dramatically
decreased
64.6%,
59.2%
19.0%,
respectively.
Compared
PBR-MFC,
PBR-MFC-SOC-1
has
efficiency
26.7%
power
density
474
mW·m-2,
improving
21.85%
38.81%,
integration
SOC
credited
improvement
performance.
transition
from
“disordered”
“orderly”
porous
ion
transport
channel
eradication
antagonism
between
microorganisms
two
key
aspects
its
favorable
benefits.
This
strategy
integrating
will
provide
new
sight
on
high-efficiency
energy
conversion
technologies
for
Academia green energy.,
Journal Year:
2025,
Volume and Issue:
2(1)
Published: March 31, 2025
The
urgent
shift
to
a
sustainable
bio-based
economy
underscores
the
importance
of
multi-product
biorefineries,
which
transform
biomass
into
biofuels,
biochemicals,
and
materials.
Despite
progress,
challenges
like
high
costs,
technical
barriers
in
processing,
market
uncertainties
limit
their
widespread
adoption.
While
prior
studies
have
explored
single-product
comprehensive
analysis
integrated
systems—focusing
on
efficiency,
product
diversity,
sustainability—remains
underexplored.
This
study
addresses
this
gap
by
examining
advancements
lignocellulosic
biomass,
algal
resources,
agricultural
residues,
municipal
solid
waste
utilization,
alongside
innovations
biochemical,
thermochemical,
hybrid
conversion
technologies.
Objectives
include
assessing
feedstock
versatility,
efficiencies,
economic
viability,
environmental
impacts.
Key
findings
reveal
enhanced
yields
through
enzyme
microbial
engineering,
catalytic
upgrades,
AI-driven
optimization,
with
life
cycle
assessments
showing
significant
greenhouse
gas
reductions.
Economically,
diversification
lowers
yet
capital
investment
volatility
persist
as
hurdles.
concludes
that
biorefineries
are
vital
for
energy
security
climate
goals,
integrating
well
renewable
circular
principles.
Future
research
should
prioritize
scalable,
modular
designs
adaptable
regional
contexts,
supported
robust
policies
ensure
success.
Royal Society of Chemistry eBooks,
Journal Year:
2024,
Volume and Issue:
unknown, P. 171 - 206
Published: Aug. 2, 2024
Global
estimates
specify
450
billion
m3
of
annual
water
consumption
in
industrial
and
domestic
use.
Approximately,
60%
wastewater
generated
from
these
applications
is
rich
nitrogen
phosphorus
along
with
other
trace
elements
can
be
used
as
a
substrate
for
microalgal
growth
to
produce
∼23.5
tons
oil.
The
processing
various
categories
through
conventional
physico-chemical
or
non-microalgal
approaches
could
either
energy-intensive
unproductive.
Improvement
optimization
an
integrated
system
microalgae
delivering
sustainable
cost-effective
approach
towards
bioremediation
simultaneous
creation
commercially
value-added
products
prime
concern.
This
chapter
deeply
portrays
the
latest
developments
specifying
characteristics,
pretreatment
strategies,
technological
prerequisites
efficacious
amalgamation
treatments
coupled
substantial
cultivation
systems
emphasizing
mechanisms
microalgae-mediated
pollutant
elimination,
prospects
treatment
diverse
varieties
wastewaters
using
evaluation
capital
operational
expenditures
large-scale
applications.
