Water Science & Technology,
Journal Year:
2021,
Volume and Issue:
84(9), P. 2131 - 2157
Published: Oct. 6, 2021
Abstract
The
membrane
biofilm
reactor
(MBfR),
which
is
based
on
the
counter
diffusion
of
electron
donors
and
acceptors
into
biofilm,
represents
a
novel
technology
for
wastewater
treatment.
When
process
air
or
oxygen
supplied,
MBfR
known
as
aerated
(MABR),
has
high
transfer
rate
efficiency,
promoting
microbial
growth
activity
within
biofilm.
Over
past
few
decades,
laboratory-scale
studies
have
helped
researchers
practitioners
understand
relevance
influencing
factors
biological
transformations
in
MABRs.
In
recent
years,
pilot-
to
full-scale
installations
are
increasing
along
with
modeling.
resulting
accumulated
knowledge
greatly
improved
understanding
counter-diffusional
process,
new
challenges
opportunities
arising.
Therefore,
it
crucial
provide
insights
by
conducting
this
review.
This
paper
reviews
treatment
advancements
using
MABR
technology,
including
design
operational
considerations,
community
ecology,
Treatment
performance
MABRs
intensification
existing
facilities
assessed.
also
other
emerging
applications
MABRs,
sulfur
recovery,
industrial
wastewater,
xenobiotics
bioremediation,
space-based
treatment,
autotrophic
nitrogen
removal.
conclusion,
commercial
demonstrate
that
beneficial
pollutants
(COD,
N,
P,
xenobiotics)
removal,
resource
recovery
(e.g.,
sulfur),
N2O
mitigation.
Further
research
needed
increase
packing
density
while
retaining
efficient
external
mass
transfer,
interactions
occurring,
address
assumptions
improve
modeling
control,
optimize
conditions
site-specific
considerations.
Sustainability,
Journal Year:
2022,
Volume and Issue:
14(21), P. 14427 - 14427
Published: Nov. 3, 2022
Landfill
leachate,
especially
when
produced
in
old
municipal
solid
waste
landfills,
is
a
challenging
type
of
wastewater
which
contains
variety
toxic
substances.
The
existence
pollutants
the
landfill
leachate
primarily
due
to
inadequate
separation
at
source.
Pretreatment
on
site
must
for
be
safely
released
into
environment.
One-step
treatment
insufficient
since
has
complex
composition
that
spatially
and
temporally
varies.
Often,
are
treated
together.
Biological
routine
technique
applied
less
than
five
years
old.
concentration
easily
biodegradable
organic
matter
young
declines
with
time
and,
as
result,
application
physical
chemical
processes
required.
goal
current
work
investigate
usefulness
capability
most
efficient
widely
available
technique/s
treatment,
identify
main
challenges
strengths
each
technology
seek
optimum
solution.
