Electrochimica Acta,
Год журнала:
2023,
Номер
442, С. 141905 - 141905
Опубликована: Янв. 16, 2023
The
objective
of
this
study
was
to
evaluate
the
performance
Photo-Fenton
(PF)
and
Electro-Fenton
(EF)
processes
find
best
option
for
removal
pharmaceutical
compounds
in
a
real
urban
effluent
wastewater
treated
by
chemically-enhanced
primary
treatment
(CEPT).
In
both
used
iron
residual
(average
2.4
mg
L−1)
resulting
from
CEPT
avoiding
further
salts
addition.
Central
composite
designs
(CCD)
with
response
surface
methodology
(RSM)
were
applied
select
operational
conditions.
Humic
acid
(HA)
chelating
agent
PF
process,
where
Fe3+:HA
molar
ratios
H2O2
concentrations
factors.
While
current
density
electrolysis
time
factors
EF
process.
conditions
selected
evaluating
1:6.8
ratio
100
L−1
PF,
80
mA
cm−2
min
EF.
evaluated
Boron
Doped
Diamond
electrode
anode
cathode
(BDD/BDD
cell)
without
addition
supporting
electrolyte.
efficiencies
between
24.2%
56%
gabapentin,
ibuprofen,
naproxen,
pentoxifylline,
venlafaxine.
Compounds
such
as
carbamazepine
fenofibric
increased
their
concentration
after
This
increase
related
enzymatic
cleavage
glucuronides
possible
presence
•OH
radical
scavengers
that
decreased
process
efficiency.
By
contrast,
showed
an
average
efficiency
53.3%
99.9%
all
identified
compounds,
treating
wastewater.
These
results
could
be
synergic
effect
homogeneous
BDD(•OH)
contributed
improving
oxidation
contaminants.
electrical
energy
per
order
(EEO)
determined
values
11.5
144.9
kWh
log−1
m−3,
suggesting
need
apply
other
preliminary
treatments
reduce
(i.e.,
coupled
biological
process).
Frontiers in Environmental Science,
Год журнала:
2022,
Номер
10
Опубликована: Ноя. 30, 2022
The
non-ending
needs
of
growing
human
population
are
being
met
by
rapid
industrialization
and
globalization,
which
have
nowadays
become
an
indispensable
component
growth.
Although
these
activities
led
to
phenomenal
growth
the
civilization,
at
same
time,
they
resulted
in
severe
environmental
pollution
discharge
highly
toxic
waste.
This
waste
is
severely
detrimental
not
only
for
environment
but
also
health
population.
Among
different
classes
pollutants,
one
considered
as
ones
that
persistent
organic
pollutants
(POPs).
Advanced
oxidation
technologies
(AOTs)
play
a
major
role
degradation
converting
into
CO
2
,
H
O,
mineralized
inorganic
ions.
AOTs
include
UV-based
photocatalysis,
ozonation,
electrochemical
oxidation,
Fenton
Fenton-like
processes
There
some
difficulties
challenges
associated
with
AOT,
such
capital
intensive
high
consumption
energy.
To
overcome
bottlenecks,
photocatalytic
promising
method
uses
solar
energy
pollutants.
Photocatalysis
further
classified
homogenous
heterogenous
photocatalysis.
As
part
semiconductor
photocatalysts
received
great
attention;
because
their
drawbacks
recombination
electron/hole
pair,
low
adsorption
rate,
surface
area
coverage,
nanotechnology
was
bringing
novel
enhanced
remediation
photocatalysis
process.
this
end,
designing
more
efficient
photocatalyst
modifying
morphology,
composition,
structure
reducing
toxicity
need
hour
abatement
review
focuses
on
removal
using
detailed
account
various
mechanism,
process
shortcomings,
remedial
measures,
future
prospects.
International Journal of Environmental Research and Public Health,
Год журнала:
2022,
Номер
19(17), С. 10919 - 10919
Опубликована: Сен. 1, 2022
Antibiotics
are
used
extensively
throughout
the
world
and
their
presence
in
environment
has
caused
serious
pollution.
This
review
summarizes
natural
methods
enhanced
technologies
that
have
been
developed
for
antibiotic
degradation.
In
environment,
antibiotics
can
be
degraded
by
photolysis,
hydrolysis,
biodegradation,
but
rate
extent
of
degradation
limited.
Recently,
techniques
utilize
biological,
chemical,
or
physicochemical
principles
removal.
These
include
traditional
biological
methods,
adsorption
membrane
treatment,
advanced
oxidation
processes
(AOPs),
constructed
wetlands
(CWs),
microalgae
microbial
electrochemical
systems
(such
as
fuel
cells,
MFCs).
both
advantages
disadvantages
and,
to
overcome
associated
with
individual
techniques,
hybrid
shown
significant
potential
Hybrids
combinations
method
AOPs,
CWs
MFCs,
microalgal
treatment
activated
sludge,
AOPs
MFCs.
Considering
complexity
pollution
characteristics
currently
removal
technologies,
it
is
apparent
better
choices
dealing
contaminants.
Processes,
Год журнала:
2022,
Номер
10(5), С. 1041 - 1041
Опубликована: Май 23, 2022
Emerging
pollutants
are
present
in
wastewaters
treated
by
conventional
processes.
Due
to
water
cycle
interactions,
these
contaminants
have
been
reported
groundwater,
surface
water,
and
drinking
waters.
Since
processes
cannot
guarantee
their
removal
or
biotransformation,
it
is
necessary
study
that
comply
with
complete
elimination.
The
current
literature
review
was
conducted
describe
provide
an
overview
of
the
available
information
about
most
significant
groups
emerging
could
potentially
be
found
wastewater
environment.
In
addition,
describes
main
entry
distribution
pathways
into
environment
through
cycle,
as
well
some
potential
effects
they
may
cause
flora,
fauna,
humans.
Relevant
on
SARS-CoV-2
virus
its
spread
included.
Furthermore,
also
outlines
Advanced
Oxidation
Processes
(AOPs)
used
for
total
partial
removal,
emphasizing
reaction
mechanisms
process
parameters
need
considered.
As
well,
biological
that,
although
slow,
effective
biotransformation
can
combination
advanced
oxidation
