Mapping Emerging Contaminants in Wastewater Effluents through Multichromatographic Platform Analysis and Source Correlations
Environmental Science & Technology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 12, 2025
This
study
explores
the
correlation
of
contaminants
emerging
concern
(CECs)
in
wastewater
effluents
using
liquid
chromatography
(LC),
supercritical
fluid
(SFC),
and
comprehensive
two-dimensional
gas
(GC
×
GC)
with
derivatization,
all
coupled
to
high-resolution
mass
spectrometry
(HRMS).
Over
300
compounds,
including
frequently
overlooked
highly
polar
nonpharmaceutical
CECs,
were
identified.
Monitoring
programs
mainly
focus
on
reducing
variability
assessing
pollution
treatment
plant
(WWTP)
under
dry
weather
conditions,
often
neglecting
wet-weather
discharges.
In
this
study,
analysis
revealed
complex
impact
rainfall
effluent
composition,
identifying
clusters
CECs
introduced
through
rain
runoff
discharges
from
retention
basins.
Rain
events
affected
removal
efficiency
easily
degradable
variations
between
WWTPs.
Persistent
compounds
such
as
PFAS
demonstrated
strong
intragroup
correlations,
reflecting
their
common
sources
environmental
stability.
These
findings
provide
valuable
insights
into
diverse
profiles
demonstrate
potential
correlation-based
approaches
optimize
strategies
specific
challenges
individual
Language: Английский
Comprehensive analysis of pharmaceutical and illicit drugs contamination in thermal swimming pools: Occurrence, distribution, and potential impact
Environmental Pollution,
Journal Year:
2025,
Volume and Issue:
368, P. 125775 - 125775
Published: Jan. 30, 2025
Language: Английский
Monitoring of the electrochemical oxidation of venlafaxine and its metabolite o- desmethylvenlafaxine using a flow cell and high-resolution mass spectrometry
Melanie Voigt,
No information about this author
Jean-Michel Dluziak,
No information about this author
Nils Wellen
No information about this author
et al.
Published: April 30, 2025
Abstract
Background
The
antidepressant
venlafaxine
and
its
metabolite
o-desmethylvenlafaxine
are
frequently
found
in
water
bodies
around
the
world
reaching
several
micrograms
per
liter.
As
a
remedy,
electrochemical
advanced
oxidation
processes
(EAOPs)
such
as
anodic
with
boron
doped
diamond
(BDD)
electrode
have
proven
to
be
suitable
means
prevent
entrance
aquatic
environment.
For
potential
application,
optimization
of
EAOPs
can
readily
achieved
by
variation
conditions
using
flow
cell
compared
batch-mode
cell.
Monitoring
characterization
reactants
provide
inside
into
mechanism.
Results
High
performance
liquid
chromatography
high-resolution
mass
spectrometry
led
observation
five
transformation
products
four
o-desmethylvenlafaxine.
Mass
voltammograms
were
recorded
from
which
impact
on
degradation
quantity
nature
derived.
pathways
identified
well.
Detailed
analysis
revealed
that
hydroxyl
radicals
played
major
role
prevalence
radical
induced
was
further
corroborated
scavenger
tert-butanol,
causing
decrease
elimination
efficiency.
Both
drugs
best
eliminated
at
pH
3
voltage
1.5
V,
least
ecotoxicological
concern
indicated
QSAR
analysis.
Conclusion
study
shall
contribute
advancement
for
stages
wastewater
purification
treatment.
An
in
silico
ecotoxicity
assessment
showed
is
beneficial
an
point
view.
Especially
formed
via
indirect
radical-induced
mechanism
lower
than
initial
compound.
Language: Английский
Prioritization Strategies in Non-Target Screening of Environmental Samples by Chromatography – High-Resolution Mass Spectrometry: A Tutorial
Published: Jan. 1, 2025
Language: Английский
Prioritization Strategies for Non-Target Screening in Environmental Samples by Chromatography – High-Resolution Mass Spectrometry: A Tutorial
Journal of Chromatography A,
Journal Year:
2025,
Volume and Issue:
unknown, P. 465944 - 465944
Published: April 1, 2025
Language: Английский