Sustainability,
Journal Year:
2023,
Volume and Issue:
16(1), P. 369 - 369
Published: Dec. 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.
Sustainability,
Journal Year:
2024,
Volume and Issue:
16(20), P. 9038 - 9038
Published: Oct. 18, 2024
The
European
Parliament
adopted
a
legislative
resolution
of
10
April
2024
on
the
proposal
for
directive
and
Council
concerning
urban
wastewater
treatment.
reduction
in
pollution
discharged
treated
parameters
BOD5,
total
nitrogen,
phosphorus
was
emphasized.
Based
these
results,
it
stated
that
impacts
quality
lakes,
rivers,
seas
EU
are
visible
tangible.
At
same
time,
emphasized
sector
removal
treatment
is
responsible
0.8%
electricity
consumption
about
0.86%
all
greenhouse
gas
emissions
entire
EU.
Almost
third
could
be
prevented
by
improving
process,
better
use
sewage
sludge,
increasing
energy
efficiency,
as
well
higher
rate
renewable
resource
technologies.
It
also
necessary
to
integrate
processes
into
circular
economy.
Sludge
management
water
reuse
suboptimal
too
many
valuable
resources
still
being
wasted.
This
article
focuses
sustainable
municipal
treatment,
innovative
new
technologies
(combined
hybrid
processes,
ANAMMOX,
etc.)
their
practice
with
aim
environmental
efficiency
reducing
carbon
footprint.
research
focused
possibilities
processing
nitrogen
phosphorus,
wastewater.
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.
La
aplicación
de
microalgas
y
bacterias
en
el
tratamiento
aguas
residuales
ha
despertado
interés
debido
a
la
mayor
adaptabilidad
estabilidad
ambiental
resultante
sus
interacciones,
superando
las
obtenidas
con
sostenibilidad
competitividad
económica.
Este
manuscrito
pretende
apoyar
literatura
existente
relevante
sobre
uso
bacterias.
Como
resultado,
numerosos
estudiosos
autores
han
hecho
hincapié
investigaciones
recientes
biotecnología
algas
bacterias,
por
lo
que
esta
revisión
será
útil
para
avanzar
facilitar
desarrollo
tecnológico
los
procesos
biológicos.
Water,
Journal Year:
2024,
Volume and Issue:
16(18), P. 2635 - 2635
Published: Sept. 17, 2024
The
global
population
increase
during
the
last
century
has
significantly
amplified
freshwater
demand,
leading
to
higher
wastewater
(WW)
production.
European
regulations
necessitate
treating
WW
before
environmental.
Microalgae
have
gained
attention
for
treatment
(WWT)
due
their
efficiency
in
remediating
nutrients
and
pollutants,
alongside
producing
valuable
biomass.
This
study
investigates
phycoremediation
potential
of
a
Chlorella-like
strain
isolated
from
urban
600L-scale
system
under
winter
conditions.
Experiments
December
2021
February
2022
tested
strain’s
adaptability
varying
environmental
conditions,
particularly
temperatures
(min-max
temperature
range:
−3.69
10.61
°C
−3.96
17.61
February),
its
ability
meet
legal
discharge
limits.
In
December,
low
algal
growth.
Nitrates
showed
an
RE
about
92%,
while
ammonia
slightly
decreased
(RE,
32%),
phosphorous
remained
unchanged.
February,
mild
increased
density
(33.3
×
106
cell
mL−1)
and,
at
end
experiment,
all
were
below
limits
with
very
high
%
(NH4+,
91.43;
PO43−
97.32).
Both
trials
E.
coli
RE,
=
99%.
highlights
microalgae
WWT
importance
considering
seasonal
variations
when
implementing
these
systems.
Sustainability,
Journal Year:
2023,
Volume and Issue:
16(1), P. 369 - 369
Published: Dec. 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.
