Heliyon,
Journal Year:
2023,
Volume and Issue:
9(12), P. e22577 - e22577
Published: Nov. 20, 2023
The
present
study
investigated
the
utilization
of
blood
clam
shells
as
a
potential
substitute
for
conventional
media,
well
influence
acclimation
time
on
efficacy
an
intermittent
slow
sand
filter
(ISSF)
in
treatment
real
domestic
wastewater.
ISSF
was
operated
with
16
h
and
8
off,
focusing
parameters
turbidity,
ammonia,
phosphate.
Two
media
combinations
(only
[CC]
+
[SC])
were
under
two
different
acclimatization
periods
(14
28
d).
Results
showed
that
SC
medium
exhibited
significantly
higher
removal
turbidity
(p
<
0.05)
compared
to
CC
(45.99
±
26.84
%
vs.
3.79
9.35
%),
while
slightly
>
ammonia
(23.12
20.2
16.77
16.8
%)
phosphate
(18.03
11.96
vs
13.48
12
%).
Comparing
periods,
d
period
overall
performances
than
14
d.
Further
optimizations
need
be
conducted
obtain
effluent
value
below
national
permissible
limit,
since
are
still
higher.
SEM
analysis
confirmed
formation
biofilm
both
mediums
after
acclimatization;
further
schmutzdecke
carried
out
enrich
results.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(3), P. e24730 - e24730
Published: Jan. 21, 2024
Mining
wastewater
can
have
adverse
effects
on
the
ecosystem;
thus,
treatment
before
discharging
into
environment
is
of
utmost
importance.
This
manuscript
reports
effect
mining
environment.
Moreover,
currently
used,
effective
and
commercialised
mine
technologies
such
as
SAVMIN®,
SPARRO®,
Biogenic
sulphide,
DESALX®
are
reported
in
this
study.
These
integrate
two
or
more
separation
processes,
which
been
proven
to
be
for
high
recovery
salts
water
reuse.
Some
significantly
recover
>95%
water.
Modern
pilot-stage
laboratory-scale
systems
used
removal
metals
also
herein.
Since
some
generate
highly
toxic
sludge
other
waste
products,
management
generated
was
considered.
studies
focused
at
laboratory
level
using
adsorption
process.
Most
adsorbents
exhibit
promising
results;
however,
there
insufficient
research
reusability,
management,
economic
analysis
systems.
implementation
necessary.
Furthermore,
integration
precious
low
concentrations
desirable
addition
reclamation
achieve
circular
Water,
Journal Year:
2024,
Volume and Issue:
16(19), P. 2812 - 2812
Published: Oct. 2, 2024
Biological
treatment
is
currently
a
favorable
option
to
treat
wastewater
due
its
environmentally
friendly
methods
and
minimal
toxic
by-products.
The
majority
of
biological
uses
bacteria
as
agents,
which
are
known
have
excellent
capabilities
for
removing
various
pollutants.
Researchers
extensively
explored
the
use
extracellular
polymeric
substances
(EPSs)
generated
by
in
treatment.
This
review
focuses
on
sources
EPSs,
factors
influencing
their
production,
role
Bacterial
species,
nutrient
availability,
pH,
temperatures,
presence
toxins
were
mentioned
be
EPS
production
Produced
EPSs
may
promote
aggregation,
adsorption,
decolorization,
degradation
highlights
challenges
discovering
new
potential
bacterial
species
complex
extraction
methods,
well
importance
mass
larger-scale
applications.
Nanomaterials,
Journal Year:
2024,
Volume and Issue:
14(10), P. 848 - 848
Published: May 13, 2024
A
novel
Cr-doped
BaTiO3
aerogel
was
successfully
synthesized
using
a
co-gelation
technique
that
involves
two
metallic
alkoxides
and
supercritical
drying
method.
This
freshly
prepared
has
high
specific
surface
area
of
over
100
m2/g
exhibits
improved
responsiveness
to
the
simulated
sunlight
spectrum.
Methyl
orange
(MO)
chosen
as
pollutant,
results
reveal
aerogel,
when
modified
with
noble
metal
silver
(Ag),
achieves
pollutant
removal
rate
approximately
3.2
times
higher
than
commercially
available
P25,
reaching
up
92%
within
60
min.
The
excellent
photocatalytic
performance
Ag-modified
can
be
primarily
attributed
its
extensive
three-dimensional
porous
architecture.
Furthermore,
incorporation
Ag
nanoparticles
effectively
suppresses
recombination
photo-generated
electrons
holes.
Stability
reusability
tests
have
confirmed
reliability
aerogel.
Therefore,
this
material
emerges
highly
promising
candidate
for
treatment
textile
wastewater.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: March 24, 2025
Abstract
In
the
era
of
industrialization,
chromium
(Cr)
as
a
metal
poses
substantial
threat
to
ecosystem.
Selenium
(Se)
is
essential
for
minimizing
heavy
stress
in
crops
and
effectively
reducing
their
accumulation
edible
plant
parts.
This
research
work
aimed
evaluate
synergistic
effect
compost
Se
alleviation
Cr
chili
plants.
A
greenhouse
trail
was
conducted
investigate
individual
combined
effects
foliage
applied
selenium
(Na
2
SeO
4
=
3
µM)
soil
(250
mg
kg
−1
,
w/w)
on
growth,
physio-biochemical,
antioxidant
grown
under
varying
levels
induced
(0,
100,
200
using
K
O
7
).
Findings
revelaed
that
significant
linear
reduction
observed
biomass,
physiological
parameters
with
an
increasing
level
concentrations.
Maximum
decrease
relative
water
content
(20.04
27.21%)
total
chlorophyll
concentrations
(11.73
20.57%)
increased
electrolyte
leakage
(59.14
130.52%)
at
100
comparison
control,
respectively.
Combined
application
showed
increase
regardless
soil.
Synergistic
approach
improved
growth
sole
limiting
movement
uptake
roots
fruits
Moreover,
potential
plants
helped
cope
higher
by
lipid
peroxidation
membrane
damange.
The
use
induces
physio-biochemical
defense
responses
against
promising
highlights
growing
crop
Cr-contaminated
soils
achieve
better
quality
yields.
ChemistrySelect,
Journal Year:
2025,
Volume and Issue:
10(15)
Published: April 1, 2025
Abstract
Nitrogen‐rich
graphene
oxide/polyvinyl
alcohol
(PGOPA)
composites
were
synthesized
through
the
coupling
and
Schiff
base
reactions
of
oxide
(GO)
with
polyvinyl
(PVA)
polyethyleneimine
(PEI).
Fourier‐transform
infrared
spectroscopy
(FTIR),
Energy
dispersive
(EDS)
X‐ray
photoelectron
(XPS)
analyses
confirmed
successful
preparation
PGOPA.
The
maximum
adsorption
capacities
680.3
mg/g
at
298
K,
694.4
308
704.2
318
exceeding
those
most
previously
reported
GO‐based
materials.
PGOPA
exhibited
excellent
cycling
stability,
retaining
87.2%
its
initial
capacity
after
six
consecutive
adsorption–desorption
cycles.
In
absence
competing
anions
(SO
4
2−
PO
3−
),
showed
remarkable
selectivity
for
Cr(VI).
Adsorption
experiments
isotherm
Cr(VI)
followed
Langmuir
model.
pseudo‐second‐order
model
fitted
this
process
well,
indicating
chemisorption
characteristics.
XPS
revealed
that
mechanism
primarily
involved
electrostatic
interactions
reduction
to
Cr(III).
This
work
provides
valuable
technical
support
structural
design
highly
selective
adsorbents
removal
from
wastewater.
