Environmental Science Water Research & Technology,
Journal Year:
2023,
Volume and Issue:
10(2), P. 498 - 509
Published: Dec. 13, 2023
In
the
lack
of
organic
carbon
sources,
with
an
electrode
as
electron
donor
aerobic
denitrification
yields
higher
current
production
and
faster
nitrate
removal
than
anaerobic
denitrification.
Chemosphere,
Journal Year:
2023,
Volume and Issue:
347, P. 140695 - 140695
Published: Nov. 15, 2023
This
study
presents
the
excess
sludge
minimisation
in
a
Membrane
Bioreactor
(MBR)
system
by
an
Oxic
Settling
Anaerobic
(OSA)
process.
The
pilot
plant
was
fed
with
real
wastewater
and
OSA
operated
two
different
hydraulic
retention
times
(HRT),
respectively
4
(Period
II)
6
h
III)
compared
to
MBR
I).
Multiple
parameters/variables
were
monitored:
minimisation,
nitrogen
carbon
removal,
membrane
fouling,
biokinetic
behaviour
through
respirometry.
With
respect
current
literature,
greenhouse
gas
emissions
also
here
monitored,
often
neglected.
Results
demonstrated
that
combining
systems
can
significantly
reduce
production
(89.7%,
Period
III
59.7%
II,
However,
presented
better
PO4–P
removal
efficiencies
but
worse
performances
other
parameters
(COD,
NH4
Total
Nitrogen).
No
substantial
variation
fouling
obtained
over
experimental
periods.
Finally,
HRT
increase
anaerobic
reactor
promoted
N2O–N
inside
unaerated
reactors,
highlighting
need
for
trade-off
between
GHG
emission.
Environmental Quality Management,
Journal Year:
2024,
Volume and Issue:
34(1)
Published: July 29, 2024
ABSTRACT
Microplastics
(MPs)
are
a
pollutant
that
increasingly
threatens
freshwater
ecosystems
and
requires
effective
solutions
for
their
removal.
The
aim
of
this
study
is
to
review
current
filtration
methods
used
remove
MPs
from
environments.
This
uses
systematic
method
existing
literature
regarding
techniques
removing
MPs.
Data
were
collected
various
scientific
sources
published
between
2015
2023.
analyzed
include
traditional
advanced
technology.
results
show
technologies
such
as
nanofiltration
biofiltration
have
high
potential
in
freshwater.
However,
each
technique
has
its
own
challenges,
including
removal
efficiency
implementation
cost.
conclusion
an
dealing
with
MP
pollution
ecosystems;
however,
further
needed
address
the
challenges.
provides
in‐depth
insights
can
help
develop
more
efficient
policies
managing
future.