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.
Nanomaterials,
Год журнала:
2024,
Номер
15(1), С. 26 - 26
Опубликована: Дек. 27, 2024
This
review
explores
biochar’s
potential
as
a
sustainable
and
cost-effective
solution
for
remediating
organic
pollutants,
particularly
polycyclic
aromatic
hydrocarbons
(PAHs)
pesticides,
in
water.
Biochar,
carbon-rich
material
produced
from
biomass
pyrolysis,
has
demonstrated
adsorption
efficiencies
exceeding
90%
under
optimal
conditions,
depending
on
the
feedstock
type,
pyrolysis
temperature,
functionalization.
High
surface
area
(up
to
1500
m2/g),
porosity,
modifiable
functional
groups
make
biochar
effective
adsorbing
wide
range
of
contaminants,
including
toxic
metals,
nutrients.
Recent
advancements
production,
such
chemical
activation
post-treatment
modifications,
have
enhanced
capacities,
with
engineered
achieving
superior
performance
treating
industrial,
municipal,
agricultural
effluents.
However,
scaling
up
applications
laboratory
research
field-scale
wastewater
treatment
poses
significant
challenges.
These
include
inconsistencies
variable
environmental
high
cost
large-scale
logistical
challenges
handling
deploying
at
scale,
need
integration
existing
systems.
Such
impact
practical
implementation
biochar-based
remediation
technologies,
requiring
further
investigation
into
production
methods,
long-term
assessments,
field-level
optimization
strategies.
underscores
importance
addressing
these
barriers
highlights
offer
sustainable,
environmentally
friendly,
economically
viable
treatment.
Journal of Composites Science,
Год журнала:
2024,
Номер
8(7), С. 234 - 234
Опубликована: Июнь 24, 2024
Industrialization
and
globalization
have
caused
severe
environmental
problems,
such
as
contaminating
water
bodies
by
toxic
agents
from
various
industries,
generating
a
significant
loss
of
biodiversity
health
risks.
Globally,
approximately
80%
wastewater
is
discharged
without
treatment,
worsening
the
situation.
However,
in
Colombia,
initiatives
been
taken
to
improve
management,
with
ambitious
investments
targets
treatment
infrastructure.
Recently,
advanced
technologies
developed
treat
wastewater,
including
more
efficient
sustainable
biological
methods,
using
coconut-derived
adsorbent
biomaterials,
rich
useful
properties
for
adsorption
pollutants
solutions.
This
research
focuses
on
developing
composite
biomaterial
cellulose
acetate
(CA)
extracted
coconut
mesocarp
polyhydroxy
butyrate
(PHB),
casting
method,
wastewater.
Adsorption
tests
tracer
methylene
blue
(MB)
were
carried
out
Energy
Environment
laboratory
University
Cartagena.
For
this,
MB
solutions
prepared
5
50
ppm
concentrations.
The
analyses
showed
that
thermally
stable
has
good
homogeneity
porosity.
At
concentration
40
dosage
10
mg
adsorbent,
efficiency
was
89%,
an
capacity
35.98
mg/g.
above
indicates
presented
sustainable,
improved,
solution
remove
contaminants
benefiting
environment
human
health.
Sustainability,
Год журнала:
2024,
Номер
16(17), С. 7415 - 7415
Опубликована: Авг. 28, 2024
In
Colombia
alone,
12.6
million
bags
of
green
coffee
are
produced,
but
at
the
same
time,
784,000
tons
waste
biomass
dumped
in
open
fields,
which
only
5%
is
recovered
or
used,
and
10
tonnes
emit
28.6
CO2
eq
annually.
This
presents
a
worrying
dilemma,
need
to
develop
technology
transform
into
usable
products
increasing.
As
response
this,
valorization
was
explored
through
production
biochar
platform
chemicals
by
implementing
set
hydrothermal
experiments
with
different
biomass/water
ratios
(1:5,
1:10,
1:20,
1:40),
particle
sizes
(0.5,
1,
2,
5
mm),
stirring
rates
(5000
8000
rpm),
catalysts
(H2SO4,
NaHCO3
CH3COOH)
180,
220,
260
°C
batch
reactor
autogenous
pressure.
Notably,
smaller
B:W
1:20
1:40,
as
well
0.5
1
mm,
yielded
higher
amounts
chemicals,
while
showed
minimal
influence.
CH3COOH
significantly
enhanced
process
compared
other
catalysts.
The
characterized
anthracite,
this
obtaining
coal-like
materials
from
itself
represents
remarkable
feat.
Said
anthracite
presented
little
no
variation
physical
parameters,
induced
functionalization.
By
optimizing
factors
like
ratio,
size,
catalyst
application,
valuable
insights
have
been
gained
enhancing
yield
quality
waste.
findings
not
contribute
sustainable
management
practices
also
highlight
importance
exploring
innovative
solutions
for
utilizing
agricultural
by-products
effectively.
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.
