Juniper Online Journal Material Science,
Год журнала:
2023,
Номер
7(5)
Опубликована: Апрель 4, 2023
This
research
focuses
on
finding
an
alternative
to
expensive
cement
in
the
construction
industry
Pakistan
by
utilizing
pozzolanic
materials,
specifically
volcanic
ash/bentonite
clay.By
replacing
a
portion
of
with
bentonite
(10%,
20%,
30%,
and
40%),
study
demonstrates
potential
reduce
net
consumption
cost
while
also
contributing
more
durable
concrete
reducing
energy
greenhouse
gas
emissions.Physical
properties
such
as
setting
time
fineness
were
studied,
compressive,
flexural,
split
tensile
strength
mixes
compared
at
7
28
days
curing.While
decreased
successive
addition
bentonite,
rate
reduction
was
much
lower
than
days.The
results
validate
feasibility
developing
low-cost
using
partial
replacement
for
cement.
Colloids and Surfaces A Physicochemical and Engineering Aspects,
Год журнала:
2024,
Номер
698, С. 134549 - 134549
Опубликована: Июнь 17, 2024
ZSM-5
zeolite
is
a
multifunctional
material
highly
efficient
for
adsorbing
ions.
Our
was
synthesized
by
employing
nucleating
gel
as
structure-directing
agent,
followed
homogenization
and
hydrothermal
treatment.
The
as-prepared
physicochemically
characterized
to
assess
its
properties.
Next,
the
employed
an
adsorbent
remove
rare
earth
elements,
REEs
from
synthetic
solutions
real
phosphogypsum
leachate
under
batch
mode
operation.
As
expected,
discovered
be
microporous
with
abundant
surface
functionalities,
which
could
positively
impact
REE
adsorption.
adsorption
data
indicated
high
affinity
between
all
three
rapid
kinetics
capacities.
modeling
study
suggested
that
kinetic
were
well
fitted
Avrami-fractional
order,
Liu
described
equilibrium
data.
maximum
capacity
Ce3+,
La3+,
Nd3+
99.42
mg
g-1,
96.43
118.10
respectively.
Further,
thermodynamic
analysis
revealed
interaction
favorable,
spontaneous,
endothermic.
efficiency
of
also
studied
in
recovering
several
wastes,
results
proved
potency
do
so.
findings
reported
this
work
support
idea
can
successfully
used
recover
samples.
Water,
Год журнала:
2023,
Номер
15(20), С. 3682 - 3682
Опубликована: Окт. 21, 2023
Brewer’s
spent
grains
(BSG)
are
a
significant
by-product
of
beer
production,
and
its
improper
disposal
poses
environmental
challenges.
This
study
investigated
the
use
BSG
for
activated
carbon
production
with
phosphoric
acid
as
chemical
activator
application
in
cheese
whey
remediation
through
liquid-phase
adsorption.
The
adsorbent
was
thoroughly
characterized
using
techniques
such
FTIR,
SEM,
N2
isotherms,
surface
charge
distribution.
exhibited
substantial
pores,
high
area
(605.1
m2
g–1),
good
porosity,
positive
charges
that
facilitated
favorable
interactions
compounds.
Equilibrium
achieved
330
min
lactose,
BOD5,
COD.
maximum
adsorption
capacities
were
12.77
g
g–1
3940.99
mg
O2
12,857.92
g−1
COD
at
318
K.
Removing
these
adsorbates
from
effluent
reduces
organic
load,
enabling
water
reuse
manufacturing
unit,
depending
on
intended
use.
process
spontaneous
endothermic,
ΔH°
≥
265.72
kJ
mol−1.
Additionally,
produced
demonstrated
impressive
regeneration
capability
sodium
hydroxide,
maintaining
75%
capacity.
These
results
emphasize
potential
an
effective
remediation,
providing
sustainable
solution
waste
management
dairy
industry
reuse.
