Sustainability,
Journal Year:
2024,
Volume and Issue:
16(20), P. 8963 - 8963
Published: Oct. 16, 2024
The
management
of
the
organic
fraction
municipal
solid
waste
(OFMSW),
also
called
urban
biowaste,
and
wastewater
sludge
(UWWS)
represents
a
challenge
for
cities
regions,
which
want
to
adopt
innovative
bioeconomy
approaches
their
treatment
production
high-added-value
products
beyond
traditional
anaerobic
digestion
(AD)
compost.
This
adoption
is
often
restricted
by
availability
maturity
technologies.
research
object
this
manuscript,
based
on
findings
EU
Horizon
2020
project
HOOP,
identification
state-of-the-art
circular
technologies
material
valorisation
OFMSW
UWWS,
following
novel
screening
methodology
scale
implementation
(tested
at
least
pilot
scale).
resulted
in
25
technologies,
have
been
compared
discussed
under
multidisciplinary
assessment
approach,
showing
enabling
factors
challenges,
current
or
potential
commercial
status
compatibility
with
biowaste
(composting
AD).
bioproducts
cover
market
sectors
such
as
agriculture,
chemistry,
nutrition,
bioplastics,
materials
cosmetics.
Therefore,
results
review
help
promoters
city/region
level
select
conversion
OFMWS
UWWS
into
high
value
products.
Polymer Engineering and Science,
Journal Year:
2021,
Volume and Issue:
62(1), P. 25 - 43
Published: Nov. 19, 2021
Abstract
This
review
provides
a
comprehensive
overview
on
applications,
preparation
methods,
and
most
notably
the
performance
efficiency
of
polyvinyl
alcohol
(PVA)‐based
membranes
for
filtration
aqueous
environments.
Incorporation
PVA
into
membrane
matrix
significantly
enhances
such
characteristics
as
antifouling
antibacterial
properties
well
hydrophilicity
permeability
in
water
wastewater
filtrations.
Contribution
different
PVA‐based
modular
purification
targets
via
comparative
previous
researches
is
main
theme
this
work.
Alongside
with
focused
topic,
some
basic
theories
principals
blend
composite
polymer
films
fibers
are
debated
before
discussions.
will
ultimately
facilitate
further
development
future
investigations.
Journal of environmental chemical engineering,
Journal Year:
2024,
Volume and Issue:
12(2), P. 112352 - 112352
Published: Feb. 27, 2024
This
research
focuses
on
the
production
of
a
liquid
stream
rich
in
volatile
fatty
acids
(VFAs)
and
low
ammoniacal
nitrogen
content
(<0.1
g
N/L)
from
biowaste.
The
was
obtained
by
combining
(i)
mixed
culture
acidogenic
fermentation
to
maximise
VFA
(ii)
gas-permeable
membrane
(GPM)
contactor
recover
nitrogen.
Three
batch
tests
biowaste
collected
full-scale
mechanical-biological
treatment
plant
provided
high
stable
concentrations
(37-39
CODVFA/L).
VFAs
represented
73-81%
soluble
chemical
oxygen
demand
(sCOD)
concentration,
with
predominance
acetic,
propionic
butyric
acids.
A
highly
specialized
microbial
community
observed
all
tests,
Bacteroidota
Firmicutes
as
predominant
phyla
(>90%
relative
abundance).
GPM
recovered
more
than
99%
without
losses.
suitability
produced
C/N
ratio
for
downstream
applications
evaluated
using
biomethane
potential
(BMP)
at
different
total
ammonium
(TAN)
(0.76-3.15
circumneutral
pH.
Despite
achieving
similar
ultimate
methane
yields
(279-314
NmL
CH4/g
CODfeed),
lower
TAN
improved
anaerobic
biodegradation
kinetics,
enhancing
its
applicability
production.
ACS Environmental Au,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 29, 2025
Technologies
using
liquid-transfer
membranes,
such
as
microfiltration,
ultrafiltration,
and
reverse
osmosis,
have
been
widely
applied
in
water
wastewater
treatment.
In
the
last
few
decades,
gas-transfer
membranes
introduced
various
fields
to
facilitate
mass
transfer,
which
gaseous
compounds
permeate
through
membrane
pores
driven
by
gradients
chemical
concentration
or
potential.
A
notable
knowledge
gap
exists
among
researchers
working
on
these
emerging
they
approach
this
subject
from
different
angles
areas
of
expertise
(e.g.,
material
science
versus
microbiology).
This
review
explores
versatile
applications
treatment,
categorizing
them
into
three
primary
types
according
function
membranes:
vapor
transferring,
reactant
supplying,
compound
extraction.
For
each
type,
principles,
evolution,
potential
for
further
development
were
elaborated.
Moreover,
highlights
transfer
between
fields,
insights
one
type
could
potentially
benefit
another.
Despite
their
technical
innovations,
processes
still
face
challenges
practical
operation,
fouling
wetting.
We
advocate
research
focusing
more
sustainable
careful
consideration
technologies
specific
scenarios.
The
current
practicality
maturity
treatment
are
described
Technology
Readiness
Level
(TRL)
framework.
Particularly,
ongoing
fundamental
progress
engineering
is
expected
continue
fueling
future
technologies.
Membranes,
Journal Year:
2025,
Volume and Issue:
15(2), P. 62 - 62
Published: Feb. 13, 2025
Membrane
contactors
have
proved
to
be
effective
for
recovering
ammonia
from
wastewater
by
absorbing
it
into
a
trapping
solution.
This
study
compares
the
performance
of
sulfuric
acid
and
citric
as
solutions
in
pilot-scale
plant
sludge
digestion
liquors
using
membrane
liquid-liquid
configuration
operating
at
pH
10
temperature
37
°C
ultrafiltration
(UF)
technology
pretreatment.
The
process
lower
(9.5)
(30
°C)
was
also
studied,
well
advantage
including
CO2-stripping
module
process.
elimination
efficiency
88%
86%
when
acid,
respectively.
nitrogen
concentration
produced
ammonium
sulfate
citrate
reached
23.2
14.7
g
NH3-N·L-1,
decreased
49%
decreasing
9.5
85%
31
°C.
UF
able
reduce
suspended
solids
90%
chemical
oxygen
demand
37%.
However,
membranes
pretreatment
recovery
had
constantly
cleaned
with
due
scaling,
which
significantly
increased
maintenance
efforts.
reduced
consumption
caustic
soda
solution
23%
increasing
level
treated
water.
Finally,
specific
energy
8
kWh·m-3.
