Sustainability,
Journal Year:
2024,
Volume and Issue:
16(23), P. 10761 - 10761
Published: Dec. 8, 2024
The
presence
of
pharmaceuticals
in
aquatic
ecosystems
is
an
issue
increasing
concern.
Regardless
the
low
concentration
water,
they
can
have
a
toxic
effect
on
both
humans
and
organisms.
Advanced
oxidation
processes
(AOPs)
been
described
as
promising
technique
for
eliminating
due
to
their
high
efficiency.
However,
cost
associated
with
application
these
reagents
energy
requirements
affected
implementation
AOPs
at
large
scales.
Biochar
has
suggested
be
used
catalyst
overcome
limitations.
considered
alternative
heterogeneous
thanks
its
physicochemical
characteristics
like
specific
surface
area,
porous
structure,
oxygen-containing
functional
groups,
electrical
conductivity,
persistent
free
radicals
(PFRs),
modifiable
properties,
structure
defects.
This
carbonaceous
material
presents
capacity
activate
oxidizing
agents
leading
formation
radical
species,
which
are
needed
degrade
pharmaceuticals.
Additionally,
AOP/biochar
systems
destroy
pharmaceutical
molecules
following
non-radical
pathway.
To
enhance
biochar
catalytic
performance,
modifications
such
iron
(Fe)
impregnation,
heteroatom
doping,
supporting
semiconductors
surface.
Although
efficiently
combination
several
mineralization
from
further
research
must
conducted
evaluate
different
regeneration
techniques
increase
biochar’s
sustainable
applicability
reduce
operational
combined
process.
Moreover,
conditions
influencing
system
required
evaluated
discern
find
that
maximize
degradation
by
systems.
Langmuir,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 5, 2025
Antiviral
drugs,
in
particular
those
used
to
treat
COVID-19,
have
been
categorized
as
emerging
pollutants
recent
years
due
their
persistent
presence
water/wastewater.
They
identified
environmental
matrices
all
over
the
world,
proving
that
current
treatment
methods
cannot
eliminate
them
from
In
this
study,
degradation
of
favipiravir
(FAV)
and
ecotoxicity
changes
different
water
were
investigated
using
UV,
UV/H2O2,
UV/Co-doped
ZnS
quantum
dots
(QDs)
photocatalytic
processes.
The
effects
initial
FAV
concentration,
matrices,
pH,
H2O2
catalyst
amount
on
rate
evaluated.
Initial
concentrations
(50,
100,
150
μg/L)
a
slight
effect
rate.
matrix
composition
significantly
reduced
rates
efficiencies
for
QDs
processes
following
order:
wastewater
plant
(WWTP)
effluent
>
tap
(TW)
distilled
(DW).
pH
(4.0,
5.0,
7.0,
9.0)
had
remarkable
enhanced
86.3
98.1%
with
increasing
4.0
9.0
ionization
degree
UV
process.
maximum
was
obtained
at
7.0
removal
93.9
100%
UV/H2O2
processes,
respectively.
Transformation
products
determined
toxicity
algae
increased
50
μg/L
water.
Growth
inhibition
50,
15.1,
33.3,
36.3%
96
h,
respectively,
without
any
treatment.
After
60
min
process,
growth
decreased
below
0.5%
regardless
concentration.
Overall,
process
is
effective
degrading
aqueous
matrices;
however,
an
step
required
remove
natural
organic
matter
actual
matrices.
Environmental Science & Technology,
Journal Year:
2024,
Volume and Issue:
58(12), P. 5578 - 5588
Published: March 13, 2024
The
removal
of
antibiotic-resistant
bacteria
(ARB)
and
antibiotic-resistance
genes
(ARGs)
using
sulfate
anion
radical
(SO4•–)-based
advanced
oxidation
processes
has
gained
considerable
attention
recently.
However,
immense
uncertainties
persist
in
technology
transfer.
Particularly,
the
impact
dichlorine
(Cl2•–)
generation
during
SO4•–-mediated
disinfection
on
ARB/ARGs
remains
unclear,
despite
Cl2•–
concentration
reaching
levels
notably
higher
than
those
SO4•–
certain
SO4•–-based
procedures
applied
to
secondary
effluents,
hospital
wastewaters,
marine
waters.
experimental
results
this
study
reveal
a
detrimental
effect
efficiency
tetracycline-resistant
Escherichia
coli
(Tc-ARB)
treatment
owing
generation.
Through
comparative
investigation
distinct
inactivation
mechanisms
Tc-ARB
Cl2•–-
processes,
encompassing
various
perspectives,
we
confirm
that
is
less
effective
inducing
cellular
structural
damage,
perturbing
metabolic
activity,
disrupting
antioxidant
enzyme
system,
damaging
genetic
material,
viable
but
nonculturable
state.
Consequently,
diminishes
Importantly,
indicate
increases
potential
risk
associated
with
dark
reactivation
vertical
gene
transfer
process
following
disinfection.
This
underscores
undesired
role
for
process.
Environmental Pollution,
Journal Year:
2025,
Volume and Issue:
unknown, P. 126096 - 126096
Published: March 1, 2025
Wastewater
treatment
plants
(WWTPs)
are
hot
spots
for
the
acquisition
and
spread
of
antimicrobial
resistance
(AMR).
This
regional-based
study
quantified
antibiotic
genes
(ARGs),
mobile
genetic
elements
(MGEs),
bacteria
in
hospital
community-derived
wastewater
receiving
environments,
using
high-throughput
qPCR
(HT-qPCR).
is
first
to
apply
Resistomap's
Antibiotic
Resistance
Gene
Index
(ARGI)
as
a
standardised
metric
find
overall
AMR
level
across
different
WWTPs.
ARGI
WWTPs
ranged
from
2.0
2.3,
indicating
higher
relative
ARG
levels
than
mean
European
2.0,
but
lower
global
2.4.
The
highest
diversity
abundance
ARGs
were
observed
untreated
community
wastewater.
reduction
total
during
(0.2-
2
logs)
(0.3-1.5
varied
spatio-temporally
Despite
decrease
bacterial
treated
effluents,
substantial
loads
still
released
into
environments.
Notably,
coastal
sediments
comparable
those
wastewater,
most
shared
between
highlighting
impact
discharge
on
these
ecosystems.
Sewage
outfall
exposure
increased
shellfish,
emphasising
risks
shellfish
hygiene.
provides
evidence
inform
policymaking,
advanced
methods
combined
sewer
overflow
(CSO)
management
mitigate
release,
protecting
water
users
food
chain.
Toxics,
Journal Year:
2025,
Volume and Issue:
13(4), P. 239 - 239
Published: March 24, 2025
This
paper
aims
to
review
the
sources,
occurrence
patterns,
and
potential
risks
of
antibiotic
resistance
genes
(ARGs)
in
agricultural
soils
discuss
strategies
for
their
reduction.
The
pervasive
utilization
antibiotics
has
led
accumulation
ARGs
soil.
can
be
transferred
among
microorganisms
via
horizontal
gene
transfer,
thereby
increasing
likelihood
dissemination
heightening
threat
public
health.
In
this
study,
we
propose
that
physical,
chemical,
bioremediation
approaches,
namely
electrokinetic
remediation,
advanced
oxidation,
biochar
application,
effectively
decrease
abundance
study
also
highlights
significance
various
control
measures,
such
as
establishing
a
strict
regulatory
mechanism
veterinary
drugs,
setting
standards
organic
fertilizers,
conducting
technical
guidance
on-farm
soil
monitoring
reduce
environmental
spread
protect
Water Environment Research,
Journal Year:
2024,
Volume and Issue:
96(8)
Published: Aug. 1, 2024
Abstract
In
this
study,
we
investigated
the
temporal
and
spatial
quantitative
changes
in
concentration
of
antibiotic
resistance
gene
(ARG)
markers
a
municipal
wastewater
treatment
plant
(WWTP).
Four
ARGs
conferring
to
different
classes
antibiotics
(
ermB,
sul
1,
tet
[W],
bla
CTXM
)
used
as
proxy
for
ARG
pollution
intl1
were
quantified
two
separate
sampling
campaigns
covering
half
years
operation
WWTP.
First,
systematic
monthly
monitoring
multiple
points
inlet
outlet
revealed
an
absolute
decrease
all
analyzed
ARGs.
However,
relative
abundance
1
intl
genes
total
bacterial
load
(estimated
using
universal
marker
16S
rDNA)
increased
samples
compared
inlet.
To
pinpoint
exact
stage
removal
and/or
enrichment
within
WWTP,
second
including
stages
biological
was
performed
bimonthly.
This
distinct
during
phase.
Moreover,
variations
patterns
WWTP
underscored
complexity
dynamics
associated
with
treatment.
Understanding
these
is
pivotal
developing
efficient
strategies
mitigate
dissemination
aquatic
environments.
Practitioner
Regular
WWTPs
essential
assess
changes,
aiding
development
effective
mitigation
strategies.
crucial
optimizing
processes
minimizing
Increased
certain
highlights
potential
treatment,
necessitating
targeted
interventions.
Systematic
can
provide
valuable
insights
into
efficacy
reducing
levels
over
time.
The
underscores
need
develop
holistic
approaches
tackle
systems.