Polymer Bulletin,
Journal Year:
2024,
Volume and Issue:
81(16), P. 14307 - 14336
Published: July 18, 2024
Abstract
There
is
a
growing
threat
of
wastewater
pollution
impacting
human
access
to
clean
water.
The
surge
in
pharmaceuticals
and
personal
care
products
(PPCPs)
such
water
has
reached
alarming
levels,
posing
an
unprecedented
aquatic
ecosystems
health.
Conventional
treatment
not
specifically
tailored
address
the
presence
PPCPs.
This
paper
examines
possibility
using
nano-chitin
chitosan
as
effective
sustainable
adsorbents
for
removal
PPCPs
from
wastewater.
recent
progress
functionalized
or
composites
reviewed
with
attention
enhanced
adsorption
capacity
selectivity
toward
different
classes
Unique
features
chitosan,
their
large
surface
areas
biocompatibility
making
them
good
choice
PPCP
adsorption,
are
also
discussed.
Critical
evaluation
given
about
how
these
nanomaterials
absorb
by
looking
at
various
mechanisms
like
electrostatic
interactions,
hydrogen
bonding,
hydrophobic
interaction,
among
others.
Finally,
future
research
directions
provided
improving
performance
scalability
bio-based
Graphical
Environment International,
Journal Year:
2024,
Volume and Issue:
191, P. 108965 - 108965
Published: Aug. 17, 2024
The
coexistence
of
microorganisms
in
complex
soil
environments
greatly
affects
the
environmental
behavior
and
ecological
effects
microplastics
(MPs).
However,
relevant
studies
are
sparse,
internal
mechanisms
remain
unclear.
Herein,
arbuscular
mycorrhizal
fungi
(AMF),
a
common
symbiotic
microorganism
soil-plant
system,
was
proved
to
significantly
affect
MPs
absorption
migration
with
"size
effect".
Specifically,
existence
AMF
accelerated
small-sized
(0.5
μm)
uptake
but
slowed
large-sized
(2
lettuce.
content
0.5
μm
absorbed
by
plants
1.26
times
that
non-AMF
group,
while
2
only
77.62
%
group.
Additionally,
different
on
intake
particle
sizes
also
led
toxic
lettuce,
is,
exacerbated
small-size
toxicity
lettuce
(e.g.,
reduced
plant
biomass,
photosynthesis,
etc),
it
weakened
increased
height,
antioxidant
enzyme
activity,
etc).
above
phenomenon
mainly
because
change
root
structure,
which
can
be
visually
observed
through
intraradical
extraradical
hyphae.
structure
(hyphae)
formed
host
could
enhance
pathway
for
although
not
MPs.
varied
environment
differently
sized
MPs,
promoted
small-particle
aggravated
large-particle
fixation
at
interface.
These
findings
deepen
understanding
pollution
terrestrial
systems
provide
theoretical
basis
technical
support
accurately
assess
pollution.
