The
integration
of
powdered
activated
carbon
(PAC)
and
biofilm
carriers
in
a
membrane
bioreactor
(MBR)
presents
promising
approach
to
address
the
challenge
long
hydraulic
retention
time
(HRT)
for
nitrification
hydrolysed
urine.
This
study
investigated
effect
incorporation
MBR
on
microbial
dynamics,
focusing
dominant
nitrifying
bacteria.
results
showed
that
significant
shifts
compositions
were
observed
with
feed
transition
full-strength
urine
across
different
sludge
growth
forms.
Remarkably,
nitrite-oxidising
bacteria
Nitrospira
was
highly
enriched
suspended
sludge,
while
ammonia-oxidising
bacteria,
Nitrosococcaceae
thrived
predominantly
attached
biomass,
showing
seven-fold
increase
relative
abundance
compared
its
counterpart.
Consequently,
incorporated
displayed
36%
higher
rate
40%
HRT
reduction
conventional
MBR,
providing
valuable
insights
potential
development
compact
efficient
towards
circular
economy
nutrients.
Bioresource Technology,
Год журнала:
2024,
Номер
397, С. 130462 - 130462
Опубликована: Фев. 16, 2024
The
integration
of
powdered
activated
carbon
and
biofilm
carriers
in
a
membrane
bioreactor
(MBR)
presents
promising
approach
to
address
the
challenge
long
hydraulic
retention
time
(HRT)
for
nitrification
hydrolysed
urine.
This
study
investigated
effect
incorporation
MBR
on
microbial
dynamics,
focusing
dominant
nitrifying
bacteria.
results
showed
that
significant
shifts
compositions
were
observed
with
feed
transition
full-strength
urine
across
different
sludge
growth
forms.
Remarkably,
nitrite-oxidizing
bacteria
Nitrospira
highly
enriched
suspended
sludge.
Simultaneously,
ammonia-oxidizing
bacteria,
Nitrosococcaceae
thrived
attached
biomass,
showing
seven-fold
increase
relative
abundance
compared
its
counterpart.
Consequently,
incorporated
displayed
36%
higher
rate
40%
HRT
reduction
conventional
MBR.
provides
valuable
insights
potential
development
household
or
building
scale
on-site
nutrient
recovery
from
fertiliser.
Microorganisms,
Год журнала:
2024,
Номер
12(3), С. 433 - 433
Опубликована: Фев. 20, 2024
Nowadays,
the
discharge
of
wastewater
is
a
global
concern
due
to
damage
caused
human
and
environmental
health.
Wastewater
treatment
has
progressed
provide
environmentally
economically
sustainable
technologies.
The
biological
one
fundamental
bases
this
field,
employment
new
technologies
based
on
granular
biofilm
systems
demonstrating
success
in
tackling
issues
derived
from
wastewater.
granular-conforming
microorganisms
must
be
evaluated
as
functional
entities
because
their
activities
functions
for
removing
pollutants
are
interconnected
with
surrounding
microbiota.
deep
knowledge
microbial
communities
allows
improvement
system
operation,
proliferation
charge
metabolic
roles
could
modified
by
adjustments
operational
conditions.
This
why
engineering
consider
intrinsic
microbiological
aspects
obtain
most
effective
performance.
review
provides
an
extensive
view
ecology
biofilms
mitigating
water
pollution.
