ACS ES&T Water,
Год журнала:
2023,
Номер
3(2), С. 420 - 428
Опубликована: Янв. 12, 2023
We
report
the
synthesis,
performance,
and
stability
of
photosensitizer-doped
membranes
their
ability
to
generate
singlet
oxygen
degrade
a
model
pharmaceutical.
Specifically,
we
doped
Clear
Flex
50,
polyurethane
rubber,
with
either
terthiophene
(3T)
or
one
two
1,8-naphthalimide-based
(Nap-cbx
its
gadolinium
complex
[Gd(Nap-cbx)3(NO3)3)]
photosensitizers
photodegraded
propranolol.
After
irradiating
for
24
h
visible
light
in
presence
3T-doped
membrane,
decreased
emission
intensity
propranolol
was
consistent
42%
degradation,
while
irradiation
UV
membrane
Nap-cbx
[Gd(Nap-cbx)3](NO3)3
led
36
41%
respectively.
Additionally,
three
successfully
degraded
several
organic
pollutants
present
standard
MegaMix.
Our
findings
show
that
oxygen-generating
experience
minimal
loss
performance
after
24-hour
cycles.
The Science of The Total Environment,
Год журнала:
2023,
Номер
885, С. 163737 - 163737
Опубликована: Май 3, 2023
This
work
investigated,
during
one
year,
the
occurrence
and
fate
of
52
contaminants
emerging
concern
(CECs)
in
transnational
river
basins
coastal
areas
North
Portugal
Galicia
(NW
Spain)
wastewater
treatment
plants
(WWTPs)
discharging
on
these
environments.
The
different
CECs
investigated
included
pharmaceuticals,
personal
care
products,
industrial
chemicals,
among
others,
which
ca.
90
%
would
fulfill
persistence,
mobility
toxicity
criteria
proposed
by
German
Environmental
Agency.
results
showed
ubiquitous
presence
an
incomplete
removal
over
60
them
with
current
conventional
WWTPs.
These
findings
highlight
requirement
a
prominent
coordinated
upgrade
WWTP
treatments
order
to
meet
future
European
Union
regulations
urban
surface
water
quality.
In
fact,
even
some
compounds
exhibiting
high
removals,
such
as
caffeine
or
xylene
sulfonate,
were
frequently
detected
estuarine
waters
at
ng
L-1
level.
Thus,
our
preliminary
risk
assessment
study
concluded
that
18
presented
potential
for
environment,
being
caffeine,
sulpiride,
perfluorooctanoic
acid
(PFOA),
diclofenac,
fipronil
perfluorobutanoic
(PFBA)
most
concerning
ones.
Yet,
additional
data
well
more
robust
information
persistence
are
necessary
better
estimating
magnitude
problem
improve
assessment.
As
example,
case
antidiabetic
metformin,
recent
research
has
revealed
model
fish
species
concentration
levels
below
those
found
40
samples
analyzed
this
work.
Abstract
Macrolide
antibiotics,
including
erythromycin,
clarithromycin,
and
azithromycin,
are
frequently
misused
for
human
treatment
globally.
Therefore,
they
were
considered
high-risk
substances
on
the
Union-wide
monitoring
Watch
list
under
Regulation
2018/840/EU.
The
present
work
investigates
adsorption
behavior
of
pharmaceutical
pollutants
1,3,5-tris
(4-aminophenyl)
benzene/2,5
dimethoxyterephthalaldehyde
(TAPB-DMTP)
covalent
organic
frameworks
(COFs).
In
this
study,
we
employ
molecular
dynamics
simulations
well-tempered
metadynamics
to
evaluate
affinity
pristine
their
functionalized
form
(F-COFs)
removal
four
distinct
pollutant
molecules
(PPMs):
erythromycin
(EMC),
dexamethasone
(DEG),
azithromycin
(AZM),
clarithromycin
(CMC).
We
utilized
MD
examine
impact
two
different
temperatures
(298
310
K)
enhancing
contaminants
from
wastewater
by
COFs/F-COFs.
To
process,
several
descriptors
calculated
simulation
trajectories,
interaction
energies,
root-mean-square
deviation,
radial
distribution
function,
solvent-accessible
surface
area,
mean
square
displacement,
number
hydrogen
bonds
(HB).
It
is
determined
that
HB
X–H⋯π
(X
=
C,
N,
O;
π
aromatic
system)
interactions
most
critical
factors
contributing
system
stability.
addition,
it
shown
COFs
with
a
pore-based
structure
have
higher
capacity
removing
pollutants.
free
energy
landscapes
confirm
global
minimum
typically
associated
formation
bonds.
At
298
K,
minima
DEG/F-COFs
−665.81,
AZM/F-COFs
−638.53,
EMC/F-COFs
−566.31,
CMC/F-COFs
−326.75
KJ
mol
−1
.
Environmental Science & Technology Letters,
Год журнала:
2024,
Номер
11(5), С. 397 - 409
Опубликована: Апрель 10, 2024
This
review
examines
the
environmental
occurrence
and
fate
of
aromatic
amines
(AAs),
a
group
contaminants
with
possible
carcinogenic
mutagenic
effects.
AAs
are
known
to
be
partially
responsible
for
genotoxic
traits
industrial
wastewater
(WW),
AA
antioxidants
acutely
toxic
some
aquatic
organisms.
Still,
there
gaps
in
available
data
on
sources,
occurrence,
transport,
domestic
WW
indoor
environments,
which
complicate
prevention
adverse
effects
ecosystems.
We
key
sources
these
compounds,
including
cigarette
smoke
grilled
protein-rich
foods,
their
presence
indoors
matrices.
provides
basis
evaluate
importance
nonindustrial
overall
burden
AAs.
Appropriate
sampling
techniques
described,
copper-phthalocyanine
trisulfonate
materials,
XAD
resins
solid-phase
extraction,
microextraction
methods,
can
offer
insights
into
fate.
Further
discussion
is
provided
potential
progress
research
behavior
an
aim
support
development
more
comprehensive
understanding
risks.
Environmental Science & Technology,
Год журнала:
2024,
Номер
58(27), С. 12135 - 12146
Опубликована: Июнь 25, 2024
Biosolids
are
a
byproduct
of
wastewater
treatment
that
can
be
beneficially
applied
to
agricultural
land
as
fertilizer.
While
U.S.
regulations
limit
metals
and
pathogens
in
biosolids
intended
for
applications,
no
organic
contaminants
currently
regulated.
Novel
techniques
aid
detection,
evaluation,
prioritization
biosolid-associated
(BOCs).
For
example,
nontargeted
analysis
(NTA)
detect
broad
range
chemicals,
producing
data
sets
representing
thousands
measured
analytes
combined
with
computational
toxicological
tools
support
human
ecological
hazard
assessment
prioritization.
We
NTA
computer-based
tool
from
the
EPA,
Cheminformatics
Hazard
Comparison
Module
(HCM),
identify
prioritize
BOCs
present
Canadian
(
Environmental Science and Pollution Research,
Год журнала:
2022,
Номер
30(8), С. 21512 - 21532
Опубликована: Окт. 22, 2022
This
study
provides
the
first
set
of
quantitative
data
on
occurrence
and
fate
a
wide
range
contaminants
emerging
concerns
(CECs)
in
Indonesia's
largest
wastewater
treatment
plant
(WWTP).
The
WWTP
employs
waste
stabilization
ponds
(WSPs)
as
secondary
before
discharging
effluent
to
Citarum
River.
Fourteen
out
twenty-two
monitored
CECs
were
detected
influent,
seven
present
effluent,
with
total
concentration
29.8
±
0.4
µg/L
0.5
0.0
µg/L,
respectively.
this
was
found
be
well
correlated
their
possible
use
known
detection
surface
waters
Indonesia.
Caffeine
(CAF)
at
12.2
0.1
acetaminophen
(ACT)
9.1
N,N-diethyl-m-toluamide
(DEET)
5.0
ibuprofen
(IBU)
2.3
triclosan
(TCS)
470
64
ng/L
discovered
five
most
prevalent
CECs,
followed
by
bisphenol
A
(BPA),
trimethoprim
(TMP),
Tris(2-chloroethyl)
phosphate
(TCEP),
sulfamethazine
(SMZ),
carbamazepine
(CBZ),
fluoxetine
(FLX),
benzotriazole
(BTA),
sulfamethoxazole
(SMX),
metformin
(METF).
Biodegradable
(SMX,
SMZ,
ACT,
IBU,
TCS,
BPA,
CAF,
DEET,
TMP)
efficiently
removed
(83-100%)
WSP.
In
contrast,
recalcitrant
achieved
poor
removal
efficiencies
(e.g.,
FLX
24%),
for
others,
processes
even
resulted
elevated
concentrations
(CBZ
85%,
TCEP
149%,
BTA
92%).
CECs'
influent
determined
pose
moderate
aquatic
cumulative
risk,
while
no
such
risk
associated
concentrations.
demonstrates
importance
conventional
WWTPs
reducing
minimize
contamination
risk.
findings
are
relevant
countries,
Indonesia,
limited
resources
advanced
centralized
treatments,
which
exploring
efficacy
WSP
against
existing
decentralized
treatments.
