The
present
study
aimed
at
to
evaluate
the
performance
of
integrated
system
composed
microalgae
(MA)
and
constructed
wetlands
(CW).
MA
production
tank
was
set
up
as
a
raceway
type
genus
Chlorella
were
inoculated,
while
wetland
inspired
by
first
stage
French
model
vegetated
with
macrophytes
Chrysopogon
zizanioides,
Typha
domingensis
Dracaena
trifaciata.
Hydraulic
Retention
Time
in
each
unit
7
days,
totaling
14
days
treatment.
Promising
results
obtained
regarding
reductions
dissolved
organic
carbon
(67.2%)
Total
N
(68.6
%).
treatment
also
able
fully
remove
acute
ecotoxicity
against
Dapnhia
magna.
Chromatographic
analysis
showed
presence
9
pharmaceuticals
raw
wastewaters,
whereas
after
CW
only
residuals
dipyrone
(1
%)
still
detected.
Future
recommendations
include
investigation
mains
removal
mechanisms
improvements
separation
process
MA.
South African Journal of Chemical Engineering,
Journal Year:
2024,
Volume and Issue:
48, P. 395 - 416
Published: March 12, 2024
Emerging
micropollutants
(EMPs)—which
include
endocrine
disruptors,
pharmaceuticals,
personal
care
products,
pesticides,
and
industrial
chemicals—have
recently
received
global
attention
due
to
their
detection
in
the
environment
at
trace
levels
being
labeled
as
a
first-priority
environmental
public
health
concern.
EMPs
are
often
identified
by
nature
of
toxicity,
bioaccumulation
potential,
persistence,
despite
low
concentrations.
Their
prevalence
aquatic
is
closely
linked
difficulty
removed
using
conventional
water
wastewater
treatment
techniques.
Constructed
wetlands
(CWs)
have
drawn
more
interest
this
field
recent
years,
largely
because
affordability,
ease
use
upkeep,
friendliness.
However,
only
small
number
researchers
examined
compiled
body
knowledge
regarding
CWs
remove
disrupting
chemicals
(EDCs)
other
from
various
sources.
Previously
reviewed
articles
were
not
focused
on
comparative
performance
types
hybrid
systems
EDCs
wastewaters.
Therefore,
applications
suitability
different
integrated
for
removing
wide
range
emerging
contaminated
environments
(water
wastewater)
reviewed.
The
findings
review
confirmed
that
integrating
with
novel
technologies,
such
membrane
bioreactors
(MBR),
electrochemical
oxidation,
microbial
fuel
cells
(MFCs),
can
maximize
specific
advantages
constructed
wetland
terms
micropollutant
removal.
Environmental Chemistry and Ecotoxicology,
Journal Year:
2024,
Volume and Issue:
6, P. 104 - 116
Published: Jan. 1, 2024
Pharmaceuticals
and
personal
care
products
(PPCPs)
are
ubiquitously
found
pseudo-persistent
group
of
emerging
contaminants
that
causes
ecotoxicity
even
at
nano-concentrations.
Due
to
their
persistence
bio-accumulative
behavior,
long-term
exposure
these
pollutants
increases
the
risk
severe
health
disorders
in
humans
poses
ecological
risks
aquatic
life.
Sedimentation,
membrane
filtration,
advanced
oxidation,
activated
sludge,
bioreactors
a
few
treatment
processes
with
efficiency
ranging
from
50
95%,
but
they
have
limitations
such
as
high
investment,
towering
operating
costs,
use
chemicals,
fouling
issues
etc.
Constructed
wetlands
(CW)
promising
low
cost,
nature-based
solutions
having
potential
PPCPs
removal
by
simultaneous
action
physical,
chemical
biological
processes.
Herein,
substrate
material,
plants
microbes
play
crucial
roles
eliminating
PPCPs.
Phytoremediation
occurs
via
plant
uptake,
translocation
degradation.
Plants
like
Canna
indica
Phragmites
australis
shown
~70–90%
antibiotics
efficiency.
Biofilm
formation
colonization
lead
microbial
degradation
micro-pollutants
apart
synergistic
effect
plant-endophytic
relationship.
This
bacterial
property
could
be
used
CWs
for
bioremediation
water
wastewaters,
substrates
provide
substratum
adherence
biofilm
formation.
Quorum
sensing
(QS)
is
density-based
cell-communication
system
where
cells
send
signals
among
themselves
during
In
this
respect,
QS-assisted
biodegradation
augmentation
engineered
bacteria
genes
enhance
QS
can
novel
approach
organic
richness.
International Journal of Phytoremediation,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 11
Published: April 17, 2025
Despite
its
toxic
potential,
the
treatment
of
wastewaters
generated
at
veterinary
hospitals
has
been
neglected.
Thus,
this
is
a
pioneering
study
that
addresses
effluent
through
an
integrated
system
composed
upflow
anaerobic
sludge
blanket
(UASB),
anoxic
filter
(AF),
aerobic
reactor
(AR),
thickener
tank
(STT)
horizontal
flow
subsurface
constructed
wetland
(HFSSCW)
and
parshall
gutter
(PG)
with
hydraulic
retention
time
10
days.
Approximately
5
m³
wastewater
produced
daily,
antibiotics
analgesics
being
most
commonly
used
classes
pharmaceutical
compounds.
Several
analyzed
parameters
did
not
comply
national
international
guidelines.
In
context,
demonstrated
good
results,
achieving
mean
removals
of:
98%
for
COD
59%
BOD5;
87.5%
Total
N
44%
P;
83.8%
69.9%
DOC
TDC;
95%
65%
Turbidity
EC;
78%
TDS.
The
bioassays
Allium
cepa
indicated
strong
genotoxic
potential
raw
wastewater,
which
was
completely
eliminated
after
treatment.
it
can
be
concluded
showed
promising
results
regarding
investigated
considered
viable
alternative
to
meet
disposal
limits
established
in
Brazilian
standards,
as
well
significantly
reduce
their
potential.
Water,
Journal Year:
2024,
Volume and Issue:
16(14), P. 1994 - 1994
Published: July 14, 2024
Diclofenac
(DCF)
is
often
detected
in
diverse
aquatic
bodies,
and
ineffective
management
can
lead
to
detrimental
effects
on
human
health
ecosystems.
In
this
study,
degradation
of
DCF
by
Fe(III)
Mn(II)
activating
bisulfite
(BS)
was
investigated.
the
Fe(III)/Mn(II)/BS
system,
93.4%
degraded
at
200
μM
BS
within
120
s,
additional
research
1000
achieved
88.4%
efficacy.
Moreover,
kinetics
fitting
with
different
concentrations
studied
find
two
highest
reaction
rates
(200
μM,
kobs
=
0.0297
0.0317
s−1,
respectively).
Whereafter,
SO4•−
Mn(III)
were
identified
as
main
active
species
these
concentrations,
respectively.
Density
functional
theory
(DFT)
calculations,
molecular
frontier
orbital
theory,
surface
electrostatic
potential
(ESP)
forecast
electrophilic
attack
sites.
pathways
radical
non-radical
ways
proposed
site
prediction
thirteen
intermediates
UPLC-QTOF-MS.
ECOSAR
software
2.2
used
for
toxicity
assessment.
This
work
process
presence
BS,
providing
a
new
insight
into
water
purification.
