Sustainability,
Год журнала:
2024,
Номер
17(1), С. 99 - 99
Опубликована: Дек. 27, 2024
Renowned
for
its
versatility
in
environmental
applications,
biochar
exhibits
substantial
potential
to
enhance
anaerobic
digestion,
facilitate
carbon
sequestration,
and
improve
water
treatment
through
highly
efficient
adsorption
mechanisms.
This
study
focuses
on
derived
from
pineapple
crown
biomass,
produced
slow
pyrolysis,
efficiency
removing
organic
dyes
contaminated
water.
The
structural,
morphological,
surface
properties
of
both
chemically
activated
samples
were
comprehensively
characterized
using
a
range
techniques,
including
XRD,
FTIR,
XPS,
BET
area
analysis,
SEM
microscopy.
performance
was
evaluated
methylene
blue
(MB),
rhodamine
B
(RhB),
malachite
green
(MG)
as
model
contaminants,
with
particular
emphasis
the
contact
time
dye
removal
efficiency.
Initial
results
showed
rates
10.8%,
37.5%,
88.4%
RhB,
MB,
MG,
respectively.
Notably,
chemical
activation
significantly
enhanced
efficiency,
achieving
complete
(100%)
all
tested
dyes.
Complete
MB
MG
occurred
within
9
min,
indicating
rapid
kinetics.
Adsorption
data
fit
well
pseudo-second-order
kinetics
(R2
=
0.9748–0.9999),
Langmuir
isotherm
0.9770–0.9998)
suggested
monolayer
interactions
between
biochar.
intraparticle
diffusion
further
clarified
These
findings
demonstrate
efficacy
highlight
biomass
remediation.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Июнь 28, 2024
Abstract
The
increasing
water
contamination
by
toxic
heavy
metals,
particularly
hexavalent
chromium,
has
become
a
significant
environmental
concern.
This
study
explores
the
pyrolysis
of
termite-processed
biomass,
specifically
Pinus
elliottii
particleboard
and
its
termite
droppings
(TDs),
to
produce
biochar
application
for
chromium
(VI)
adsorption.
Termite
droppings,
rich
in
lignin,
particleboard,
cellulose,
were
pyrolyzed
at
various
temperatures
assess
effect
biomass
composition
on
properties.
found
that
lignin-rich
produced
with
higher
fixed
carbon
content
specific
surface
area
than
cellulose-rich
biochar.
FTIR
Raman
spectroscopy
revealed
molecular
structure
changes
during
pyrolysis,
which
influenced
adsorption
capabilities
Adsorption
experiments
demonstrated
TD
exhibited
significantly
capacity,
attributed
distinct
chemical
enhanced
properties
due
lignin
content.
These
findings
underscore
crucial
role
producing
efficient
metal
adsorption,
highlighting
practical
applicability
purification
technologies.
The Innovation Materials,
Год журнала:
2024,
Номер
unknown, С. 100090 - 100090
Опубликована: Янв. 1, 2024
<p>Anthropogenic
climate
and
environmental
changes
increasingly
threaten
the
sustainability
of
life
on
Earth,
hindering
sustainable
development
human
societies.
These
detrimental
ecological
are
driven
by
activities
that
have
elevated
atmospheric
levels
greenhouse
gases
toxic
substances,
increased
inorganic
organic
pollutants
in
water
bodies,
led
to
accumulation
solid
waste
soils.
Over
next
two
three
decades,
impacts
change,
pollution,
soil
contamination
expected
intensify,
posing
increasing
risks
health
global
stability.
Considering
these
trends,
it
is
essential
implement
robust
mitigation
adaptation
strategies.
This
paper
analyzes
pollution
problems
from
perspectives
atmospheric,
water,
contamination.
It
summarizes
current
research
heterogeneous
catalysis
for
treating
gaseous,
liquid,
phases,
with
an
emphasis
key
challenges
applying
catalytic
conversion
technologies
cost-effective
industrial
settings.
Finally,
strategies
mitigating
via
discussed
material
flow,
energy
data
flow.
aims
offer
scientific
insights
enhance
future
practice
remediation.</p>
International Journal of Energy Sector Management,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 3, 2025
Purpose
The
purpose
of
this
study
is
to
evaluate
the
potential
open-flame
pyrolysis
kilns
as
an
efficient
and
sustainable
solution
for
managing
olive
tree
prunings
in
Mediterranean
regions.
By
converting
agricultural
residues
into
biochar,
method
aims
reduce
biomass
waste,
mitigate
CO
2
emissions,
enhance
soil
quality.
research
seeks
highlight
environmental,
economic
benefits
approach,
promoting
its
integration
local
farming
practices
part
a
circular
economy
strategy
broader
effort
toward
climate
change
mitigation
development.
Design/methodology/approach
This
explores
use
biochar.
Portable
were
utilized
carbonize
controlled
manner,
offering
affordable
with
minimal
technical
requirements.
process
was
evaluated
carbon
capture
efficiency,
biochar
quality
emissions
reduction.
A
life-cycle
assessment
conducted
estimate
environmental
impacts,
focus
on
mitigation.
Field
trials
assessed
feasibility
integrating
practices,
emphasizing
role
waste
management,
improvement
greenhouse
gas
Findings
demonstrates
that
are
effective
low-cost
high-quality
achieved
high
efficiency
alternative
traditional
disposal
practices.
Biochar
produced
improved
properties,
supporting
nutrient
retention
microbial
activity.
In
addition,
significantly
reduced
compared
burning
fields.
These
findings
production,
enhancing
health
systems.
Originality/value
introduces
novel,
practical
regions,
addressing
both
challenges.
It
highlights
dual
reducing
producing
provides
accessible,
small-scale
farmers,
management
portable
requirements,
offers
valuable
insights
production
filling
critical
gap
agriculture
renewable
energy
strategies.
Abstract
The
present
investigation
deals
with
feasibility
to
use
available
biomass
waste,
Terminalia
arjuna
seed
as
cost‐effective
sorbent
for
reactive
orange
16
(RO16)
dye
elimination
from
wastewater.
study
centers
around
the
modification
of
biochar
(TASB)
by
applying
one‐step
synthesis
procedure,
using
melamine
a
nitrogen
doping
agent
and
phosphoric
acid
(H
3
PO
4
)
chemical
activator.
effectiveness
modified
nitrogen‐doped
(ND‐TASB)
was
assessed
on
RO16
removal
aqueous
medium.
Surface
morphology
synthesized
identified
Fourier
transform
infrared
spectroscopy
(FTIR)
scanning
electron
microscopy
(SEM).
Modified
ND‐TASB
reflected
enhancement
in
adsorption
efficacy,
at
pH
4,
maximum
95%
observed.
By
utilizing
TASB
an
adsorbent,
medium
examined
under
varying
experimental
conditions
like
pH,
adsorbent
amount,
exposure
period
were
reported
1.5
1
g
40,
60
min
respectively
RO
(200
mg/L
concentration).
Isotherm
kinetic
results
appropriate
Langmuir
isotherm
pseudo
second‐order
models.
Maximum
sorption
efficiency
2.51
mg
−1
,
whereas
NB‐TASB
exhibited
4.84
that
is,
93%
enhancement.
Alterations
free
energy
(Δ
G
°),
enthalpy
H
entropy
S
°)
process
analyzed
assess
nature
phenomenon.
negative
values
Δ
°
confirms
phenomenon
spontaneous
feasible.
Enthalpy
value
−60.39
kJ
mol
had
182.72
J
K
ND‐PKSB.
Phytotoxicity
revealed
or
treated
solution
enhanced
pearl
millet
seedlings
growth
biochemical
variables
better
ND‐PKSB
solution.
Moreover,
regenerated
adsorbents
high
up
five
consecutive
cycles.
These
findings
establish
acts
durable,
multifaceted,
recyclable
environmentally
benign
superior
properties
its
application
industrial
scale.
Water,
Год журнала:
2025,
Номер
17(2), С. 207 - 207
Опубликована: Янв. 14, 2025
This
study
aimed
to
produce
activated
carbon
from
desilicated
rice
husks
using
various
carbonization
and
activation
methods,
including
a
tube
furnace,
muffle
artisanal
pyrolysis.
The
resulting
carbons
were
characterized
for
their
adsorptive
capacity
through
the
determination
of
iodine
number
methylene
blue
adsorption;
these
are
key
indicators
specific
surface
area
adsorbent
quality.
Advanced
characterization
techniques
employed,
such
as
scanning
electron
microscopy
(SEM),
which
revealed
highly
porous
irregular
structure,
energy
dispersive
X-ray
spectroscopy
(EDS),
confirming
effective
removal
impurities
optimization
elemental
composition.
Atomic
force
(AFM)
demonstrated
favorable
roughness
adsorption
processes.
Among
samples,
CaDH162-CADH53
exhibited
highest
performance,
with
an
1094.8
mg/g
yield
93.5%,
signifying
high
capacity.
treatments
phosphoric
acid
calcium
carbonate
significantly
improved
further
enhancing
material’s
properties.
In
conclusion,
produced
in
this
optimal
physicochemical
properties
water
purification
contaminant
treatment
applications.
These
findings
highlight
potential
agricultural
waste,
husk,
sustainable
scalable
alternative
industrial-scale
production.
