Renewable and Sustainable Energy Reviews,
Journal Year:
2023,
Volume and Issue:
185, P. 113638 - 113638
Published: Aug. 17, 2023
The
wastewater
sector
accounts
for
up
to
7
and
10%
of
anthropogenic
CH4
N2O
emissions,
respectively.
Nowadays
treatment
plants
are
going
through
a
paradigm
shift
approach
net-zero
carbon
condition.
Numerous
ongoing
measures
have
taken
place
identify
the
sources
greenhouse
gases
minimize
footprint.
This
paper
systematically
reviews
all
known
practices
leading
towards
treatment.
gas
emissions
from
identified
footprint
quantification
tools,
such
as
reliable
models
emission
factors
compared.
direct
process
can
contribute
over
60%
in
plants,
while
around
30%
is
due
energy-related
indirect
emissions.
Therefore,
mitigation
via
optimization
energy
usage
comprehensively
described.
implantation
novel
nitrogen
removal
processes
reduce
both
consumption.
Other
techniques
source
separation
systems
potentially
allow
by
avoiding
energy-intensive
fertilizer
production.
Nutrient
recovery
methods
another
which
offer
negative
value
net
Recovering
production
promising
method
lead
reductions.
Ultimately,
achieve
full
decarbonization
any
remaining
need
be
offset,
including
chemicals
transportation.
Energy Reports,
Journal Year:
2022,
Volume and Issue:
8, P. 13253 - 13280
Published: Oct. 17, 2022
Rapidly
expanding
industrialization
and
the
depletion
of
non-renewable
fossil
fuels
have
necessitated
discovery
feasible
renewable
alternatives
to
meet
rising
energy
demand
while
reducing
carbon
dioxide
(CO2)
emissions.
The
present
global
strategy
is
built
on
cost-effective
environmentally
friendly
alternatives;
production
microalgae
has
ability
these
requirements.
Microalgae
been
found
as
a
promising
sustainable
alternative
for
treating
wastewater
(WW)
concurrently
with
biofuel
production.
One
potential
strategy,
which
uses
lowering
level
contamination
in
WW
called
bioremediation.
There
are
substantial
gains
be
made
both
economy
environment
through
integration
microalgae-based
treatment
(WWT).
use
that
short
life
span,
high
growth
rate,
CO2
usage
efficiency
one
approaches
producing
biomass
from
nutrients
involves
utilization
resources.
most
resources
thermochemical
conversion
processes
liquid
gaseous
biofuels
due
their
advantages
over
other
feedstocks,
such
sustainability,
renewability,
productivity.
Currently,
technology
cost
primary
obstacles
limiting
industrial
applicability,
necessitates
an
optimum
downstream
process
minimize
costs.
Consequently,
concurrent
WWT
challenges
practical
economically
viable.
This
review
provides
overview
bioremediation
bioenergy
applications.
It
also
insight
future
research
investigate
additional
possible
applications
microalgal
biomass.
These
could
include
not
only
process,
but
generation
revenues
incorporation
clean
green
technology,
would
provide
long-term
sustainability
environmental
benefits.
