Separations,
Год журнала:
2024,
Номер
11(12), С. 353 - 353
Опубликована: Дек. 18, 2024
Electro-chlorination
(E-Cl)
is
an
emerging
and
promising
electrochemical
advanced
oxidation
technology
for
wastewater
treatment
with
the
advantages
of
high
efficiency,
deep
mineralization,
a
green
process,
easy
operation.
It
was
found
that
mechanism
pollutant
removal
by
electro-chlorination
mainly
involves
indirect
in
which
driven
intermediate
active
species,
especially
RCS
chlorine
radicals,
strong
oxidization
ability
produced
at
anodes.
In
this
work,
we
summarized
principles
pathways
removal/degradation
pollutants
(organic
ammonia
nitrogen)
E-Cl
major
affecting
factors
including
applied
current
density,
voltage,
electrolyte
concentration,
initial
pH
value,
etc.
system,
DSA
BDD
electrodes
were
most
widely
used
electrode
materials.
The
flow-through
reactor
considered
to
be
since
it
had
porosity
large
pore
size,
could
effectively
improve
mass
transfer
efficiency
electron
reaction.
Of
many
detection
methods
radicals
RCS,
paramagnetic
resonance
(EPR)
spectrophotometry
N,
N-diethyl-1,4-phenylenediamine
sulfate
(DPD)
as
chromogenic
agent
two
methods.
Overall,
process
excellent
performance
prospects
treating
salt-containing
wastewater.
Molecules,
Год журнала:
2024,
Номер
29(7), С. 1480 - 1480
Опубликована: Март 27, 2024
A
multi-residue
UHPLC–MS/MS
analytical
method,
previously
developed
for
monitoring
52
pharmaceuticals
in
drinking
water,
was
used
to
analyse
these
wastewater
originating
from
healthcare
facilities
the
Czech
Republic.
Furthermore,
methodology
expanded
include
evaluation
of
effectiveness
drug
removal
treatment
plants
(WWTPs).
Of
18
samples
analysed
by
validated
UHPLC-MS/MS,
each
sample
contained
at
least
one
quantifiable
analyte.
This
study
reveals
prevalence
several
different
drugs;
mean
concentrations
702
μg
L−1
iomeprol,
48.8
iopromide,
29.9
gabapentin,
42.0
caffeine
and
82.5
paracetamol
were
present.
An
analysis
20
ten
WWTPs
revealed
efficiencies
analytes.
Paracetamol
present
inflow
all
its
efficiency
100%.
Analytes
such
as
caffeine,
ketoprofen,
naproxen
or
atenolol
showed
high
exceeding
80%.
On
other
hand,
like
furosemide,
metoprolol,
zolpidem
tramadol
lower
efficiencies.
Four
exhibited
higher
WWTP
effluents
than
influents,
resulting
negative
efficiencies:
warfarin
−9.5%,
indomethacin
−53%,
trimethoprim
−54%
metronidazole
−110%.
These
comprehensive
findings
contribute
valuable
insights
pharmaceutical
landscape
varied
WWTPs,
which
together
with
already
published
literature,
gives
a
more
complete
picture
burden
on
aquatic
environment.
