Algae-based membrane bioreactors: A mini review on their progress and processes for wastewater treatment
Journal of Water Process Engineering,
Год журнала:
2024,
Номер
59, С. 104937 - 104937
Опубликована: Фев. 5, 2024
Язык: Английский
Enhanced energy recovery in municipal wastewater treatment plants through co-digestion by anaerobic membrane bioreactors: current status and future perspectives
Reviews in Environmental Science and Bio/Technology,
Год журнала:
2024,
Номер
23(2), С. 385 - 410
Опубликована: Май 21, 2024
Abstract
Today,
the
transition
to
renewable
energy
from
conventional
practices
is
more
important
than
ever
establish
security
and
mitigate
climate
change.
The
wastewater
treatment
plants
(WWTP)
consume
a
remarkable
amount
of
cause
significant
greenhouse
gas
emissions.
balance
WWTP
can
be
improved
by
implementing
energy-efficient
applications
such
as
anaerobic
digestion.
However,
most
existing
WWTPs
utilize
only
sewage
sludge
in
digesters
(CAD)
which
results
low
biogas
generation.
Generally,
co-digestion
indicated
an
effective
solution
for
generation
faced
mono-digestion.
Moreover,
recently,
membrane
bioreactors
(AnMBR)
have
been
promoted
prominent
alternative
CADs.
This
paper
overviews
current
situation
AnMBRs
municipal
WWTPs.
Furthermore,
environmental
economic
aspects
these
were
reviewed.
Lastly,
challenges
future
perspectives
related
AnMBR
thoroughly
discussed.
Graphical
Язык: Английский
Enhancing Methane Yield in Anaerobic Co-Digestion of Primary Sewage Sludge: A Comprehensive Review on Potential Additives and Strategies
Waste,
Год журнала:
2024,
Номер
2(1), С. 29 - 57
Опубликована: Янв. 16, 2024
Traditionally,
anaerobic
digestion
has
been
applied
to
mixed
sludge,
combining
primary
sludge
(PS)
with
secondary
sludge.
However,
recent
research
unveiled
the
advantages
of
dedicated
PS
due
its
higher
energy
content.
Anaerobic
(AD)
sewage
can
offer
a
sustainable
solution
for
managing
while
generating
renewable
energy.
The
present
study
provides
comprehensive
examination
current
state
knowledge
regarding
PS.
Co-digestion
organic
substrates,
including
food
waste
and
agro-industrial
residues,
emerges
as
promising
approach
boost
biogas
production.
Additionally,
utilization
additives
such
glucose
clay
minerals
shown
potential
in
improving
methane
yield.
Critical
factors
affecting
AD,
pretreatment
methods,
carbon-to-nitrogen
(C/N)
ratio,
temperature,
pH,
volatile
fatty
acids
(VFAs)
levels,
loading
rates
(OLR),
inoculum-to-substrate
ratio
(ISR),
role
additives,
have
meticulously
studied.
Finally,
this
review
consolidates
existing
advance
our
understanding
digestion,
fostering
more
efficient
practices
management
generation.
Язык: Английский
Instrumentation, control and monitoring of a reactor for the production of biogas from agro-industrial waste using internet of things
EUREKA Physics and Engineering,
Год журнала:
2025,
Номер
2, С. 40 - 53
Опубликована: Март 28, 2025
This
study
involved
implementing
an
instrumentation,
control,
and
monitoring
system
to
analyze
a
biogas
production
plant
from
agro-industrial
waste.
The
included
temperature,
level,
pressure
sensors
installed
at
various
points
of
the
process,
all
connected
through
Programmable
Logic
Controller
(PLC)
device
controlled
via
TIA
PORTAL
using
proportional
integral
derivative
(PID)
control
strategies.
A
Siemens
KTP700B
HMI
(Human-Machine
Interface)
display
provided
real-time
visualization
components,
while
S7-1200
PLC
enabled
data
acquisition.
Power
BI
software
was
used
for
remote
with
trend
graphs,
ensuring
comprehensive
performance
oversight.
kept
stable
temperature
43
°C
during
anaerobic
digestion
fluctuated
between
30
120
PSI
due
production,
reaching
substrate
volume
500
liters.
also
allowed
manual
recording
critical
related
including
variations
in
CH4
CO2
concentrations.
Initially,
methane
levels
were
higher
than
those
carbon
dioxide.
However,
specific
phase,
concentration
increased
significantly,
decreased.
change
coincided
deliberate
shutdown
designed
assess
impact
automation.
During
this
shutdown,
feed,
pH
controls
temporarily
halted.
Once
these
reactivated,
began
gradually
increase,
once
again
surpassing
levels.
Furthermore,
collection
on
parameters
such
as
pressure,
pH,
alkalinity,
volatile
fatty
acids,
chemical
oxygen
demand
timely
application
corrective
actions
address
disturbances
effectively
Язык: Английский
Ultrafiltration Harvesting of Microalgae Culture Cultivated in a WRRF: Long-Term Performance and Techno-Economic and Carbon Footprint Assessment
Опубликована: Дек. 5, 2023
A
cross-flow
ultrafiltration
harvesting
system
of
a
pre-concentrated
microalgae
culture
was
tested
in
an
innovative
anaerobic-based
WRRF.
The
cultivated
membrane
photobioreactor
fed
with
the
effluent
from
anaerobic
bioreactor
treating
sewage.
These
harvested
biomass
then
anaerobically
co-digested
primary
and
secondary
sludge
water
line.
Depending
on
needs
this
co-digestion,
filtration
process
evaluated
intermittently
over
period
212
days
for
different
operating
conditions,
mainly
total
amount
desired
final
solids
concentration
(up
to
15.9
g·L1
average
9.7
g·L1).
Concentration
ratios
15-27
were
obtained
transmembrane
fluxes
ranged
5
28
L·m2·h1.
Regarding
cleaning,
both
backflushing
chemical
cleaning
resulted
flux
recoveries
that
were,
average,
21%
higher
than
those
achieved
alone.
carbon
footprint
assessment
shows
promising
results
as
GHG
emissions
associated
could
be
less
savings
energy
recovered
biogas
production
valorisation
microalgae.
Язык: Английский
Ultrafiltration Harvesting of Microalgae Culture Cultivated in a WRRF: Long-Term Performance and Techno-Economic and Carbon Footprint Assessment
Sustainability,
Год журнала:
2023,
Номер
16(1), С. 369 - 369
Опубликована: Дек. 31, 2023
A
cross-flow
ultrafiltration
harvesting
system
for
a
pre-concentrated
microalgae
culture
was
tested
in
an
innovative
anaerobic-based
WRRF.
The
cultivated
membrane
photobioreactor
fed
with
effluent
from
anaerobic
bioreactor
treating
sewage.
These
harvested
biomasses
were
then
anaerobically
co-digested
primary
and
secondary
sludge
the
water
line.
Depending
on
needs
of
this
co-digestion,
filtration
process
evaluated
intermittently
over
period
212
days
different
operating
conditions,
mainly
total
amount
biomass
desired
final
solids
concentration
(up
to
15.9
g·L−1
average
9.7
g·L−1).
Concentration
ratios
15–27
obtained
transmembrane
fluxes
ranging
5
28
L·m−2·h−1.
Regarding
cleaning,
both
backflushing
chemical
cleaning
resulted
flux
recoveries
that
were,
average,
21%
higher
than
those
achieved
alone.
carbon
footprint
assessment
shows
promising
results,
as
GHG
emissions
associated
could
be
less
savings
energy
recovered
biogas
production
valorisation
microalgae.
Язык: Английский