Pyrolytic conversion of construction, renovation, and demolition (CRD) wood wastes in Québec to biochar: Production, characterization, and identifying relevant stability indices for carbon sequestration
The Science of The Total Environment,
Год журнала:
2025,
Номер
965, С. 178650 - 178650
Опубликована: Янв. 29, 2025
Management
of
heterogeneous
construction,
renovation,
and
demolition
(CRD)
wood
residues
in
Québec
brings
into
light,
a
widespread
topic
under
discussion
related
to
their
current
disposal
methods
landfills,
that
may
lead
environmental
concerns.
With
rising
forfeitures
from
legal
standpoint,
alternative
treatment
for
CRD
wastes
are
being
explored.
Thermochemical
biomass
conversion
techniques
can
be
employed
depolymerize
low-quality
end-of-life
valorize
it
bio-based
products.
Biochar,
carbonaceous
material
obtained
through
heat
the
absence
oxygen
via
slow
pyrolysis,
tailored
specific
end-use
applications
hard-to-abate
industrial
sectors
pertinent
energy,
composite
materials,
amendments.
However,
there
is
scarcity
comprehensively
understanding
pyrolysis
projecting
biochar
product's
stability
due
lack
relevant
studies
frequent
inconsistencies
amidst
currently
available
methods.
Nevertheless,
present
study,
pyrolyzed
horizontal
tube
furnace
two
scales
laboratory
conditions.
Temperatures
ranging
300
800
°C,
residence
time
(BRT)
30-120
min,
heating
rates
20-55
°C/min,
mass
feedstock
between
100
500
g
were
operational
conditions
chosen
experimentation.
Evaluation
was
carried
out
by
proximate
ultimate
analysis,
Van-Krevelen
plots,
TGA/DTG
profile,
R50
recalcitrance,
SEM-EDX,
Raman
ID/IG
Data
analysis
indicated
carbon
content
(89-90
%),
FC
(70-74
TSF
(73-75
(0.64-0.65),
(0.972)
increased
with
an
increase
BRT
(120
min)
temperature
(800
°C)
rendering
its
utilization
metallurgical
as
reductant.
A
surface
area
220-270
m2/g
also
detected
these
at
°C
recommending
implementation
adsorption
applications.
Biochar's
cation
exchange
capacity
(CEC),
pH,
hydrophobicity
high
temperatures
nurturing
ability
used
soil
pH
adjustment
part
remediation
activities.
SEM-EDX
proved
ash
predominantly
harboring
alkaline
earth
metals
(AAEM)
like
Ca
K
but
certain
point
where
devolatilization
implicit,
thereby
concentrating
stable
carbon.
As
functionalities
biochar,
they
decreased
verifying
rejection
oxychemicals
groups.
Noticeable
striations
associated
C-H/C-O/C=O
vibration,
stretching,
bending
FTIR
spectral
bands
linked
terminal
dehydrogenation,
condensation,
aromatization
reactions
highlighting
development
CC
linkages
commonly
assigned
aromatics.
Evident
low
H/C
(0.51-0.09)
O/C
(0.08-0.02)
indices,
extrapolated
high-temperature
biochars
PR:1
PR:2
possess
permeance
could
bolster
sequestration/draw-down
other
CDR
Язык: Английский
Use of Pinus patula wood pellet biochar for the adsorptive elimination of crystal violet: optimization, isotherms, and kinetics
International Journal of Environmental Science and Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 17, 2025
Язык: Английский
Optimizing Magnetic Carbon Nanotube/Polyaniline Nanocomposite for Sequestering Harmful Organic Contaminants
Water Air & Soil Pollution,
Год журнала:
2025,
Номер
236(4)
Опубликована: Март 7, 2025
Язык: Английский
Environmental sustainable ZrO2 -phosphorous Biochar nano composite derived from sugarcane bagasse and their adsorption behavior of antidepressant drugs
BMC Chemistry,
Год журнала:
2025,
Номер
19(1)
Опубликована: Март 14, 2025
Abstract
Phosphorous
biochar
was
synthesized
from
sugarcane
bagasse
(SB)
by
applying
a
2:1
weight
ratio
of
H
3
PO
4
to
OP
and
pyrolyzing
it
at
600
°C
under
nitrogen.
Sugarcane
selected
for
its
affordability
environmental
benefits
as
carbon
support.
Following
this,
zirconium-loaded
PC
nanocomposite
(ZrP400)
developed
impregnating
zirconium
hydroxide
in
concentrations
5–30%
onto
the
mesoporous
phosphorous
biochar,
which
then
thermally
treated
400ºC.
Analytical
techniques
showed
that
ZrP400
adsorbents
had
high
surface
area
(1697–2434
m²/g)
considerable
porosity.
The
effectiveness
these
removing
hazardous
tricyclic
antidepressant
amitriptyline
(AMT)
water
tested.
At
pH
6.52,
neutral
adsorbent
provided
various
chemical
functional
groups
facilitated
binding
amitriptyline.
With
20
mg
35ºC,
capacity
adsorption
reached
up
585
mg/g.
Adsorption
equilibrium
within
120
min
over
concentration
range
10
300
mg/L.
Kinetic
data
well
described
pseudo-second-order
Freundlich
isotherm
models,
indicating
chemisorption
primary
mechanism,
with
physisorption
also
contributing
significantly
removal.
spent
could
be
effectively
regenerated
using
ethanol.
Additionally,
process’s
sustainability
assessed
GAPI
AGREE
metrics,
confirmed
friendliness,
practicality,
sustainability.
Graphical
Язык: Английский
Three-Dimensional Electrosorption for Pharmaceutical Wastewater Management and Sustainable Biochar Regeneration
Molecules,
Год журнала:
2025,
Номер
30(7), С. 1435 - 1435
Опубликована: Март 24, 2025
The
adsorption
capacity
of
a
biochar
(BC)
obtained
from
pine
wood
residues
was
evaluated
for
its
ability
to
remove
two
pharmaceuticals:
fluoxetine
(FLX)
and
sulfamethizole
(SMZ).
material
showed
promising
results
in
FLX
removal,
but
limited
the
case
SMZ.
In
order
improve
these
results,
BC
surface
modifications
were
made
by
doping
with
nitrogen,
as
well
using
acid,
basic
electrochemical
treatments.
A
three-dimensional
electrosorption
treatment
proved
be
most
effective,
increasing
rate
0.45
13.46
mg/g
after
evaluating
different
operating
conditions,
such
electrodes
used
or
dosage.
Consecutive
cycles
use
performed
through
desorption
electro-regeneration
techniques
test
reuse,
it
observed
that
application
25
mA
electric
field
increased
useful
life
material.
Finally,
effect
ionic
strength
studied,
highlighting
presence
ions
did
not
significantly
affect
efficiency
SMZ
although
slight
increase
at
high
ion
concentration,
probably
due
salinization
effect.
Язык: Английский
Acute Toxicity Assessment of Textile Wastewater Treated with Pinus patula Biochar Using Daphnia pulex
Water,
Год журнала:
2025,
Номер
17(8), С. 1143 - 1143
Опубликована: Апрель 11, 2025
The
discharge
of
textile
wastewater
(TWW)
into
the
environment
releases
multiple
toxic
substances
that
pose
a
significant
threat
to
aquatic
life.
Most
studies
evaluating
treatment
efficiency
focus
on
removal
parameters,
such
as
chemical
oxygen
demand
(COD),
total
organic
carbon
(TOC),
dissolved
(DOC),
biochemical
(BOD),
and
colour.
One
processes
has
presented
high
efficiencies
in
TWW
is
use
biochar
(BC)
an
adsorbing
material.
BC
shown
ability
remove
complex
from
water
since
it
able
decrease
content
COD,
TOC,
DOC.
However,
toxicity
treated
effluents
not
been
widely
studied.
In
this
regard,
essential
only
treatments
removing
matter
but
also
their
reduce
WW
toxicity.
This
research
evaluates
acute
real
with
Pinus
patula
by
using
Daphnia
pulex
sentinel
species.
For
purpose,
D.
individuals
were
exposed
BC-treated
for
48
h,
mortality
defined
absence
movement
limbs
antennas.
It
was
found
although
P.
120
min
eliminated
72.8%
initial
DOC
under
optimal
conditions
(pH
3
13.5
g/L
dose),
effluent
remained
toxic,
inducing
85.7%
71.4%
rates
100%
(v/v)
50%
dilutions.
Despite
increase
survival
rate
due
protective
effect
achieved
constituents
contained
reconstituted
samples,
these
findings
emphasize
necessity
conducting
before
considering
after
having
treated.
Язык: Английский
Design and application of a polyacrylamide-grafted gelatin/biochar/Fe3O4 magnetic coagulant for microcystin-LR and turbidity co-removal: A case study with Yangtze River water
International Journal of Biological Macromolecules,
Год журнала:
2025,
Номер
unknown, С. 143349 - 143349
Опубликована: Апрель 1, 2025
Язык: Английский
Construction of flexible porous 3D biochar based on electrospun rice straw-derived cellulose acetate with excellent adsorption properties toward organic pollutants
International Journal of Biological Macromolecules,
Год журнала:
2024,
Номер
unknown, С. 138820 - 138820
Опубликована: Дек. 1, 2024
Язык: Английский
Characterization of Sunflower Waste Carbonization: Energy Balance and Water Holding Properties
Sustainability,
Год журнала:
2024,
Номер
16(24), С. 11234 - 11234
Опубликована: Дек. 21, 2024
This
paper
characterizes
the
carbonization
process
of
biomass
wastes,
including
sunflower
husk
pellets
and
sponge
stalk
pellets,
at
temperatures
450
550
°C.
These
studies
are
important
because
reductions
in
wood
resources
for
preparation
barbecue
charcoal,
as
well
agricultural
benefits
terms
soil
additives.
In
energy
balance,
obtained
pyrolysis
ensures
autothermal
process.
The
heating
characteristics
fixed
bed
showed
that,
due
to
difference
bulk
density,
temperature
reached
°C
110
min,
whereas
same
200
min.
Additionally,
used
increased
from
2.9
kWh
3.3
°C,
while
3.5
3.9
kWh.
combustion
assessed
using
TGA
that
leads
biochar
with
a
higher
activity
than
derived
sponge.
According
experimental
results,
has
water
content
capacity
absorption
rate
pellets.
Язык: Английский