Environmental Pollutants and Bioavailability,
Journal Year:
2024,
Volume and Issue:
36(1)
Published: Aug. 14, 2024
Chromium
exists
from
both
natural
geological
processes
and
human
actions,
it
has
a
substantial
impact
on
health
ecosystems.
This
study
addresses
the
major
challenges
in
using
biochar
as
an
environmentally
friendly,
sustainable,
economical
sorbent
for
removing
chromium
hexavalent
throughout
remediation
process.
The
results
exhibited
that
produced
non-woody
feedstocks
pyrolyzed
at
(300°C
−700°C)
significantly
large
amount
of
various
functional
groups,
higher
pH
(7
to
11.10)
CEC
(27
21.70
cmol
kg−1),
greater
surface
area
(2–300
m2g−1),
O/C
H/C
ratios
with
increasing
carbonization
temperature,
adsorption
capacities
(1.63
435
mg
g)
superior
performance
removal
compared
biochars
woody-biomass.
use
equilibrium
isotherm,
thermodynamic,
kinetic
models
aids
comprehending
interactions
between
biochar,
well
their
processes.
Arabian Journal of Chemistry,
Journal Year:
2024,
Volume and Issue:
17(4), P. 105671 - 105671
Published: Feb. 10, 2024
The
sludge
is
pretreated
to
prepare
the
bicohar
by
pyrolysis,
which
divided
into
high-carbon
biochar
and
high-ash
using
flotation.
are
used
activated
carbon,
MgAl-layered
double
hydroxides
(MgAl-LDO)
ceramsite
for
Pb2+,
methyl
orange
(MO)
ciprofloxacin
(CIP)
removal
from
wastewater,
respectively.
carbon
prepared
ZnCl2
as
chemical
agent
in
additive
of
pine
sawdust
MO
CIP
with
adsorption
amount
754.05
mg/g
635.62
mg/g,
Mg-Al
LDO
leaching
solution
bicohar,
can
quickly
remove
Pb2+
wastewater
147.89
mg/g.
has
good
reusability
after
three
cycles.
MO/CIP
mechanism
analyzed
investigated.
residue
also
capacity
1.44
above
results
indicate
that
converted
kinds
adsorbents
pollution
realizing
high
value
utilization
sludge.
Applied Surface Science,
Journal Year:
2024,
Volume and Issue:
667, P. 160348 - 160348
Published: May 21, 2024
In
this
study,
we
aimed
to
develop
an
absorbent
for
efficient
removal
of
heavy
metals.
We
developed
a
composite
(BC-IOx)
using
biochar
(BC)
obtained
by
carbonizing
rice
hull,
type
biomass,
and
iron(III)
nitrate
nonhydrate
(IO).
The
bonding
strength
between
BC
IO
was
increased
through
ultrasonication
with
high
energy
at
25
℃
2-h
heat
treatment
process
350
℃.
Brunauer-Emmett-Teller
analysis
showed
that
BC-IOx
had
specific
surface
area,
which
proportional
iron
loading
provided
abundance
active
metal
adsorption
sites.
This
effectively
removed
Pb(II)
As(V).
addition
BC-IO3
Pb(II)-contaminated
water
120
min
absorption
capacity
90.21
mg/g
from
18.12
unmodified
BC.
As(V)
8.33
65.34
BC-IO10.
addition,
the
potential
mechanism
discussed
detailed
chemical
physical
analyses.
synthesis
oxide
can
inspire
cost-effective
straightforward
production
absorbents
be
utilized
on
large
scale.
