International Journal of Scientific Research in Science and Technology,
Journal Year:
2024,
Volume and Issue:
11(6), P. 602 - 616
Published: Dec. 15, 2024
Biochar
from
algal
biomass
might
be
the
way
forward
in
improving
quality
of
soil,
carbon
sequestration,
and
sustainable
agriculture.
The
paper
covers
biochar
production,
characterization,
application,
putting
great
emphasis
on
fact
that
may
help
to
improve
soil
as
it
meets
economic
environmental
needs.
In
this
paper,
all
diverse
production
methods
are
analyzed,
along
with
characteristics
feedstocks,
mechanism
interaction
between
biochar,
so
on.
remaining
issues,
legislation,
near
horizon
scientific
achievement
presented
outline
more
future
study
profitability.
ChemistrySelect,
Journal Year:
2024,
Volume and Issue:
9(34)
Published: Sept. 9, 2024
Abstract
This
work
presents
a
reasonable
strategy
of
optimizing
the
N
:
P
molar
ratio
municipal
wastewater
to
simultaneously
restore
N‐NH
4
+
and
P‐PO
3−
via
struvite
precipitation
employing
biochar
modified
with
magnesium
as
seeding
material.
The
phosphate
removal
efficiency
ammonium
could
reach
up
71
%
100
%,
respectively.
remaining
can
be
restored
by
other
techniques
for
low
concentration
input,
such
electrocoagulation.
XRD
patterns
indicate
appearance
high
nutrient
contents
including
Mg,
in
resulting
precipitate,
suggesting
its
potential
agricultural
application.
from
rice
husk
straw
MgCl
2
solution
simple
procedure
used
new
material
wastewater.
It
has
been
found
that
modifying
0.5
M
1
were
enough
improve
14.7
26.5
efficiencies
straw‐based
husk‐based
biochar,
Along
highly
compatible
post‐precipitated
product
soil
amendment,
biochars
suitable
enhancing
restoration
precipitation.
E3S Web of Conferences,
Journal Year:
2024,
Volume and Issue:
559, P. 04032 - 04032
Published: Jan. 1, 2024
The
issue
of
how
to
economically
harvest
and
recover
algal
biomass
has
always
been
concern
green
wastewater
treatment
systems
utilizing
microalgal
technology.
This
study
explores
the
efficiency
recovery
from
Chlorella
Vulgaris
using
an
electrocoagulation-flocculation
method,
aiming
optimize
environmentally
friendly
harvesting
biomass.
Utilizing
a
response
surface
methodology
(RSM)
with
central
composite
design
(CCD),
research
investigates
impact
pH,
current
intensity,
reaction
time,
salinity
on
efficiency.
Optimal
conditions
were
identified
as
pH
6.5,
intensity
1.5A,
time
20
minutes,
15ppt,
achieving
optimal
84.36%.
findings
underscore
significant
influence
where
deviations
optimum
value
substantially
reduced
confirms
that
electrocoagulation
is
viable
effective
method
for
enhancing
recovery,
offering
sustainable
alternative
traditional
chemical
flocculation
methods
by
reducing
dependency
coagulants
minimizing
production
costs.
results
provide
solid
scientific
basis
future
enhancements
in
industrial
application
algae,
promoting
environmental
protection
economic
viability.
Water Environment Research,
Journal Year:
2023,
Volume and Issue:
95(9)
Published: Sept. 1, 2023
Biochar
(BC)
use
in
water
treatment
is
a
promising
approach
that
can
simultaneously
help
address
societal
needs
of
clean
water,
food
security,
and
climate
change
mitigation.
However,
novel
BC
technology
approaches
require
operational
testing
field
pilot-scale
scenarios
to
advance
their
readiness
assessment.
Therefore,
the
objective
this
study
evaluate
system
performance
integrated
into
hydrous
ferric
oxide
reactive
filtration
(Fe-BC-RF)
with
without
catalytic
ozonation
(CatOx)
process
laboratory
scenarios.
For
investigation,
Fe-BC-RF
Fe-CatOx-BC-RF
trials
were
conducted
on
synthetic
lake
variants
at
three
municipal
resource
recovery
facilities
(WRRFs)
flows
0.05
0.6
L/s,
respectively.
Three
native
two
iron-modified
BCs
used
these
studies.
The
commercially
available
(Fe-RF
BC)
had
96%-98%
total
phosphorus
(TP)
removal
from
0.075-
0.22-mg/L
TP,
as
orthophosphate
influent
trials.
With
integration,
yielded
94%-98%
same
process-influent
conditions.
In
WRRF
studies,
removed
84%-99%
concentrations
varied
0.12
8.1
mg/L.
Nutrient
analysis
showed
recovered
studies
an
increase
TP
its
concentration,
Fe-amended
showing
better
P
110%
than
unmodified
state,
which
was
16%.
Lastly,
successful
destructive
removals
>90%
for
more
20
detected
micropollutants,
thus
addressing
critical
human
health
environmental
quality
concern.
research
demonstrated
integration
Fe-CatOx-RF
micropollutant
removal,
disinfection,
nutrient
encouraging
tertiary
sustainable
recycling
potential
carbon-negative
operation.
PRACTITIONER
POINTS:
A
sand
integrating
biochar
injection
typically
yields
ultralow
levels.
Biochar,
modified
iron,
recovers
wastewater,
creating
P/N
upcycled
soil
amendment.
Addition
ozone
stream
enables
biochar-iron-ozone
oxidation
demonstrating
excellent
(>90%)
compounds
tested.
companion
paper
work
explores
life
cycle
assessment
(LCA)
techno-economic
(TEA)
explore
impacts,
costs,
readiness.
aid
long-term
carbon
sequestration
by
reducing
footprint
advanced
dose-dependent
manner,
including
enabling
overall
process.
This
study
investigated
ten
electrode
materials
for
electrocoagulation-flotation
(ECF)
of
Chlorella
vulgaris.
While
aluminum
and
iron
were
commonly
used,
magnesium
showed
the
highest
efficiency
(98.7%),
followed
by
aluminum,
iron,
copper,
zinc,
nickel,
lead,
titanium,
brass,
stainless
steel.
ECF
increased
pH
to
10.89.
Post-harvest
medium
could
be
recycled
microalgae
cultivation,
conserving
water
reducing
costs.
Beyond
magnesium,
steel,
copper
electrodes
proved
effective
harvesting.
underscores
ECF's
efficacy,
particularly
electrodes,
efficient
sustainable
biomass
recovery.
