BENEFICIAL USE OF SLUDGE FROM WATER TREATMENT PLANTS AS A MULTIPLE RESOURCE: POTENTIAL AND LIMITATIONS
Resources Conservation & Recycling Advances,
Journal Year:
2025,
Volume and Issue:
unknown, P. 200247 - 200247
Published: Jan. 1, 2025
Language: Английский
Azithromycin removal from water via adsorption on drinking water sludge-derived materials: Kinetics and isotherms studies
PLoS ONE,
Journal Year:
2025,
Volume and Issue:
20(1), P. e0316487 - e0316487
Published: Jan. 9, 2025
In
this
study,
we
utilized
drinking
water
treatment
sludge
(WTS)
to
produce
adsorbents
through
the
drying
and
calcination
process.
These
were
then
evaluated
for
their
ability
remove
azithromycin
(AZT)
from
aqueous
solutions.
The
L-500
adsorbent,
derived
(at
500°C)
of
WTS
generated
under
conditions
low
turbidity
in
plant,
presented
an
increase
specific
surface
area
70.745
95.471
m
2
g
-1
total
pore
volume
0.154
0.211
cm
3
,
which
resulted
a
significant
AZT
removal
efficiency
65%
distilled
after
60
min
treatment.
synthetic
wastewater,
rate
increased
80%,
comparison,
real
effluent
municipal
wastewater
56%
was
obtained.
Kinetic
studies
revealed
that
experimental
data
followed
pseudo-second-order
model
(R
:
0.993–0.999,
APE:
0.07–1.30%,
Δq:
0.10–2.14%)
suggesting
chemisorption
is
limiting
step
adsorption
using
L-500.
This
finding
aligns
with
FTIR
analysis,
indicates
mechanisms
involve
π-π
stacking,
hydrogen
bonding,
electrostatic
interactions.
equilibrium
analyzed
nonlinear
Langmuir,
Freundlich,
Langmuir-Freundlich
isotherms.
best
fitting
0.93,
2.22%,
0.06%)
revealing
numerous
interactions
energies
between
adsorbent
showed
reduction
19%
its
four
consecutive
reuse
cycles.
line
circular
economy
principles,
our
study
presents
interesting
prospect
valorization
WTS.
approach
not
only
offers
effective
but
also
represents
forward
advancing
sustainable
solutions
within
framework
economy.
Language: Английский
Utilization of drinking water treatment sludge as a fine aggregate substitute in ceramic waste-based geopolymer composite mortar
Emergent Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 2, 2025
Language: Английский
Environmental Sustainability of the Removal of Alpaca Fiber Dye Using a Thermally Modified Sludge from a Drinking Water Treatment Facility
Gilberto J. Colina Andrade,
No information about this author
Alberto Jiménez Orihuela,
No information about this author
Annie Challco Hihui
No information about this author
et al.
Sustainability,
Journal Year:
2024,
Volume and Issue:
16(18), P. 7876 - 7876
Published: Sept. 10, 2024
In
this
work,
the
removal
of
dye
using
thermally
modified
sludge
from
a
drinking
water
treatment
facility
(DWTS)
was
evaluated.
This
study
gives
value
to
waste
coagulation
flocculation
process
(waste
sludge)
in
order
remove
an
emerging
organic
agent
(Bordeaux
B).
The
sustainability
leads
circular
economy,
which
represents
important
environmental
contribution.
physicochemical
characterization
DWTS
carried
out
by
standard
methods.
DRX
and
FTIR
spectroscopy,
SEM,
superficial
specific
area
SBET
N2
at
77
K
were
used.
Thermal
activation
processes
(200–600
°C)
obtain
best
activated
thermal
conditions
for
(T:
500
°C).
Muscovite
other
minerals
found
DWTS.
Experimental
(batch
mode)
determined:
contact
time
(CT),
pH,
adsorbent
dose
(AD),
initial
concentration
(Co).
=
54.77
67.90
m2/g
TA-500.
efficiency
achieved
°C
(R
85.57
±
0.76
%,
q
max
37.45
0.14
mg/g),
which,
compared
unconventional
adsorbents,
is
more
reliable
competitive.
adsorption
adjusted
Langmuir
mathematics
model,
following
pseudo-second-order
kinetics
(R2
0.99).
Language: Английский