Water Research,
Год журнала:
2023,
Номер
247, С. 120769 - 120769
Опубликована: Окт. 21, 2023
The
historic
use
of
aqueous
film-forming
foam
(AFFF)
has
led
to
widespread
detection
per-
and
polyfluoroalkyl
substance
(PFAS)
in
groundwater,
soils,
sediments,
drinking
water,
wastewater,
receiving
aquatic
systems
throughout
the
United
States
(U.S.).
Prior
any
remediation
activities,
order
identify
PFAS-impacted
source
zones
select
optimum
management
approach,
extensive
site
investigations
need
be
conducted.
These
have
resulted
generation
considerable
amount
investigation-derived
waste
(IDW)
which
predominantly
consists
well
purging
water
drill
fluid,
equipment
washing
residue,
soil,
cuttings,
residues
from
destruction
asphalt
concrete
surfaces.
IDW
is
often
impacted
by
varying
levels
PFAS
poses
a
substantial
challenge
concerning
disposal
prevent
potential
mobilization
PFAS,
logistical
complexities,
increasing
requirement
for
storage
as
result
accumulation
associated
wastes.
distinct
features
involve
intermittent
waste,
volume
produced,
critical
demand
onsite
management.
This
article
critically
focuses
on
innovative
technologies
approaches
employed
treatment
IDW.
overall
objective
this
study
centers
developing
deploying
end-of-life
technology
capable
facilitating
unrestricted
disposal,
discharge,
and/or
reuse
on-site,
thereby
reducing
spatial
footprints
time.
Molecules,
Год журнала:
2024,
Номер
29(18), С. 4317 - 4317
Опубликована: Сен. 11, 2024
The
growing
presence
of
diverse
pollutants,
including
heavy
metals,
organic
compounds,
pharmaceuticals,
and
emerging
contaminants,
poses
significant
environmental
health
risks.
Traditional
methods
for
pollutant
removal
often
face
limitations
in
efficiency,
selectivity,
sustainability.
This
review
provides
a
comprehensive
analysis
recent
advancements
innovative
adsorbents
designed
to
address
these
challenges.
It
explores
wide
array
non-conventional
adsorbent
materials,
such
as
nanocellulose,
metal–organic
frameworks
(MOFs),
graphene-based
composites,
biochar,
emphasizing
their
sources,
structural
characteristics,
unique
adsorption
mechanisms.
discusses
processes,
the
basic
principles,
kinetics,
isotherms,
factors
influencing
efficiency.
highlights
superior
performance
materials
removing
specific
pollutants
across
various
settings.
practical
applications
are
further
explored
through
case
studies
industrial
settings,
pilot
studies,
field
trials,
showcasing
real-world
effectiveness.
Additionally,
critically
examines
economic
considerations,
technical
challenges,
impacts
associated
with
adsorbents,
offering
balanced
perspective
on
viability
conclusion
emphasizes
future
research
directions,
focusing
development
scalable
production
methods,
enhanced
material
stability,
sustainable
regeneration
techniques.
assessment
underscores
transformative
potential
remediation
critical
role
advancing
protection.
Since
the
acceptable
PFAS
levels
in
drinking
water
vary
among
regulatory
agencies,
treatment
plants
(DWTPs)
are
urged
to
adapt
their
processes
improve
removal.
This
study's
objective
was
assess
performance
of
powdered
and
granular
activated
carbon
(PAC
GAC)
for
removal
evaluate
applications
DWTPs.
Raw
filtered
waters
were
used
examine
different
types
PAC
GAC
batch
rapid
small-scale
column
tests,
respectively.
A
conventional
dose
(10
mg/L)
eliminated
40%
total
PFAS76
25%
long-chain
after
10
min.
It
would,
however,
transfer
24
ppb
daily
biosolids.
comparable
(equivalent
27,000
BV)
removed
43%
80%
PFAS.
Considering
a
medium-sized
DWTP
with
target
80%,
pretreatment
would
require
an
elevated
AC
29
mg/L.
will
incur
equivalent
cost
post-treatment
six
columns,
while
remarkably
increasing
mass
dry
sludge
by
46%.
Hence,
emerges
as
better
suited
instant
intervention
mitigate
contaminations
without
revoking
need
long-term
solution.
Marine Pollution Bulletin,
Год журнала:
2023,
Номер
194, С. 115309 - 115309
Опубликована: Авг. 15, 2023
Per-
and
polyfluorinated
alkyl
substances
(PFAS)
have
long
been
known
for
their
detrimental
effects
on
the
ecosystems
living
organisms;
however
long-term
impact
marine
environment
is
still
insufficiently
recognized.
Based
PFAS
persistence
bioaccumulation
in
complex
food
network,
adverse
will
be
exacerbated
by
global
processes
such
as
climate
change
synergies
with
other
pollutants,
like
microplastics.
The
range
of
fluorochemicals
currently
included
umbrella
has
significantly
expanded
due
to
updated
OECD
definition,
raising
new
concerns
about
poorly
understood
dynamics
negative
ocean
wildlife
human
health.
Mitigation
challenges
approaches,
including
biodegradation
studied
materials
environmental
removal
are
proposed
here,
highlighting
importance
ongoing
monitoring
bridging
research
gaps.
EU
regulations,
good
practices
legal
frameworks
discussed,
emphasis
recommendations
improving
ecosystem
management.
ACS Materials Au,
Год журнала:
2023,
Номер
4(2), С. 108 - 114
Опубликована: Ноя. 9, 2023
Per-
and
polyfluoroalkyl
substances
(PFAS)
are
a
group
of
synthetic
chemicals
characterized
with
persistence
multisurface
resistance.
Their
accumulation
in
the
environment
toxicity
to
human
beings
have
contributed
rapid
development
regulations
worldwide
since
2002.
The
sorption
strategy,
taking
advantage
intermolecular
interactions
for
PFAS
capture,
provides
promising
efficient
solution
treatment
contaminated
sources.
Hydrophobic
electrostatic
two
commonly
found
commercially
available
sorbents,
fluorous
interaction
being
novel
mechanism
applied
sorbent
selectivity.
main
object
this
Perspective
is
provide
critical
review
on
current
design
criteria
particular
focus
their
mechanisms
as
well
limitations.
An
outlook
future
innovative
sorbents
also
provided.
