ACS ES&T Water,
Journal Year:
2021,
Volume and Issue:
1(6), P. 1474 - 1482
Published: May 13, 2021
Per-
and
polyfluoroalkyl
substances
(PFASs)
are
widely
detected
in
the
environment,
while
a
large
number
of
them
cannot
be
identified
and/or
quantified
by
current
analytical
methods.
As
surrogate
total
PFAS
analysis,
adsorbable
organic
fluorine
(AOF)
method
was
improved
validated
this
study.
The
has
limits
detection
quantification
300
400
ng/L,
respectively,
more
sensitive
than
previously
reported
AOF
recovery
for
29
individual
PFASs
ranged
53–113%,
three
short-chain
yielded
lower
(19–39%)
due
to
low
adsorption
efficiency.
Recovery
mixtures
different
environmental
water
matrices
64–84%,
negligibly
impacted
presence
fluoride,
dissolved
matter,
or
other
matrix
constituents.
applied
samples,
data
were
compared
results
from
analyses,
including
fluorine,
extractable
oxidizable
precursors,
summed
PFASs.
contents
targeted
analysis
only
contributed
0.4–29%
concentrations
all
except
two
indicating
significance
estimating
unknown
concentrations,
screening
contamination,
assessing
exposure.
Critical Reviews in Environmental Science and Technology,
Journal Year:
2019,
Volume and Issue:
50(6), P. 549 - 611
Published: June 26, 2019
In
this
work,
the
occurrence
of
contaminants
in
drinking
water
sources
was
described
relation
to
their
treatment
options
based
on
both
conventional
(e.g.,
coagulation-flocculation,
sedimentation
filtration,
and
chlorination)
advanced
techniques
membrane
ozonation,
biofiltration).
However,
due
apparent
drawbacks
these
methods
formation
disinfection
by-products
(DBPs)),
it
is
desirable
develop
an
alternative
option
for
safe
water.
respect,
biochar
recognized
as
effective
candidate
resolve
limitations
treating
common
pollutants
typically
occurring
such
microbial
contaminants,
inorganic
heavy
metals,
volatile
organic
compounds
(VOCs),
pharmaceuticals
personal
care
products
(PPCPs),
endocrine
disrupting
chemicals
(EDCs).
As
can
exhibit
different
types
interactions
with
adsorbates,
its
sorption
processes
be
explained
by
diverse
mechanisms,
e.g.,
π-π
electron
donor-acceptor
interactions,
complexation,
precipitation,
H-bonding,
electrostatic
attraction.
light
attractive
features
enhanced
properties,
cost-effectiveness,
environmentally
friendly
nature),
we
offer
in-depth
discussion
biochar-based
technologies
large-scale
purification
operation.HighlightsOccurrence
various
are
discussed.Human
health
impacts
exposure
highlighted.Performances
discussed.Potentials
pristine
modified
biochars
emphasized.Feasibility
importance
highlighted.
The Science of The Total Environment,
Journal Year:
2020,
Volume and Issue:
754, P. 142122 - 142122
Published: Sept. 1, 2020
Wastewater
treatment
plants
(WWTPs)
are
considered
the
main
sources
of
chemicals
emerging
concern
(CECs)
in
aquatic
environments,
and
can
negatively
impact
ecosystems.
In
this
study,
WWTP
influent,
effluent,
sludge,
upstream
downstream
waters
from
recipient
were
investigated
at
15
locations
for
a
total
164
CECs,
including
pharmaceuticals,
personal
care
products,
industrial
chemicals,
per-
polyfluoroalkyl
substances
(PFASs),
pesticides.
addition,
zebrafish
(Danio
rerio)
embryo
toxicity
tests
(ZFET)
applied
to
influent
recipients.
A
119
CECs
detected
least
one
sample,
mean
concentrations
ranging
0.11
ng/L
(propylparaben)
64,000
(caffeine),
wastewater
samples
0.44
(ciprofloxacin)
19,000
(metformin)
surface
water
samples.
Large
variations
CEC
found
between
selected
WWTPs,
which
be
explained
by
differences
composition
process.
The
sludge-water
partitioning
coefficient
(Kd)
showed
significant
linear
correlation
octanol/water
partition
(KOW)
(p
<
0.001),
thus
could
used
predicting
their
fate
aqueous
solid
phase.
ΣCEC
WWTPs
declined
on
average
60%,
based
comparisons
effluent
concentrations.
high
resulted
in,
average,
50%
higher
compared
with
upstream.
Some
ZFET
respective
control
group,
but
no
individual
or
groups
explain
toxicity.
These
results
provide
theoretical
basis
optimization
existing
systems
different
designs,
significantly
contribute
protecting
waters.
International Journal of Environmental Research and Public Health,
Journal Year:
2022,
Volume and Issue:
19(13), P. 7717 - 7717
Published: June 23, 2022
The
pollution
of
the
aquatic
environment
has
become
a
worldwide
problem.
widespread
use
pesticides,
heavy
metals
and
pharmaceuticals
through
anthropogenic
activities
increased
emission
such
contaminants
into
wastewater.
Pharmaceuticals
constitute
significant
class
can
seriously
threaten
health
non-target
organisms.
No
strict
legal
regulations
on
consumption
release
water
bodies
have
been
implemented
global
scale.
Different
conventional
wastewater
treatments
are
not
well-designed
to
remove
emerging
from
with
high
efficiency.
Therefore,
particular
attention
paid
phycoremediation
technique,
which
seems
be
promising
choice
as
low-cost
environment-friendly
treatment.
This
technique
uses
macro-
or
micro-algae
for
removal
biotransformation
pollutants
is
constantly
being
developed
cope
issue
contamination.
aims
this
review
are:
(i)
examine
occurrence
in
water,
their
toxicity
organisms
describe
inefficient
treatments;
(ii)
present
cost-efficient
algal-based
techniques
contamination
removal;
(iii)
characterize
types
algae
cultivation
systems;
(iv)
challenges
advantages
phycoremediation.
Environmental Science Water Research & Technology,
Journal Year:
2019,
Volume and Issue:
5(10), P. 1782 - 1795
Published: Jan. 1, 2019
Perfluoroalkyl
substances
(PFAS)
are
drinking
water
contaminants
of
emerging
concern
due
to
their
persistence
in
the
environment
and
tendency
bio-accumulate.
