Soil Systems,
Journal Year:
2024,
Volume and Issue:
8(3), P. 93 - 93
Published: Aug. 28, 2024
The
use
of
biochar
in
water
resource
and
recovery
facilities
(WRRF)
shows
promise
for
phosphorus
(P)
to
as
a
biochar-based
fertilizer
(BBF)
that
can
replace
conventional
fertilizers,
promote
carbon
sequestration,
improve
soil
quality.
In
this
study,
was
recovered
after
being
dosed
into
secondary-treated
discharge
from
municipal
WRRF.
value
the
BBF
tested
lettuce
(Lactuca
sativa)
growth
trial.
compared
an
inorganic
fertilizer,
raw
biochar,
controls
had
either
only
nitrogen
(N)
or
no
amendment.
ability
treatments
support
plant
determined
by
measuring
height,
biomass,
leaf
tissue
total
N
P
concentration,
Plant
quality
Fe-modified
used
WRRF
9.05
(±0.44)
on
10-point
scale
9.61
(±0.46)
treatment
2.22
(±0.82)
untreated
control.
concentrations
were
6.28
(±0.83),
9.88
(±0.90),
15.46
(±2.54),
6.36
(±1.91)
g
plant−1
WRRF,
amendment
treatments,
respectively.
Soil
availability
uptake
amount
leaves
indicated
released
more
slowly
than
fertilizer;
however,
it
sufficiently
available
maturity.
Results
these
experiments
show
supply
adequate
plants.
slow
release
will
reduce
leaching
surface
waters.
RSC Sustainability,
Journal Year:
2024,
Volume and Issue:
2(5), P. 1498 - 1507
Published: Jan. 1, 2024
In
this
study,
granular
adsorbents
containing
varying
ratios
of
torrefied
wheat
straw
(TWS),
eggshells
(ES),
and
chitosan
(Chi)
were
prepared,
which
are
referred
to
as
ternary
composites
(TWCs).
Separations,
Journal Year:
2023,
Volume and Issue:
10(10), P. 533 - 533
Published: Oct. 6, 2023
Water
contamination
is
a
ubiquitous
issue
for
all
countries
and
territories
worldwide.
Among
others,
pesticides,
drugs,
heavy
metals,
phosphates
play
special
role
in
terms
of
pollutants
due
to
their
toxicity
large-scale
applications
industrial
agricultural
activities.
In
order
provide
cleaner
freshwater
the
world’s
population,
two
types
actions
are
required:
preventing/limiting
pollution
that
might
occur
during
our
daily
activities
decontaminating
already
exposed/contaminated
water
sources.
One
key
points
decontamination
process
create
as
few
possible
side
effects
with
solutions
applied.
For
this
reason,
case
mentioned
but
not
limited
only
them,
use
environmentally
friendly
materials
more
than
welcome.
Biochar
qualifies
one
these
materials,
its
field
expands
larger
scientific
areas
every
day.
Moreover,
it
can
be
functionalized
improve
properties
pollutant
removal
efficiency.
This
paper
summarizes
most
recent
developments
using
biochar
or
biochar-based
remove
from
contaminated
aqueous
environments.
Also,
phosphorus
wastewater
considered.
controlling
factor
wastewater,
which
obtained
residual
Indeed,
excessive
chemical
fertilizers,
eutrophication
such
kinds
serious
challenge.
Frontiers in Chemical Engineering,
Journal Year:
2024,
Volume and Issue:
5
Published: Jan. 23, 2024
The
excessive
application
of
dairy
manure
to
soils
supply
plant
nutrients
can
result
in
increased
offsite
nutrient
transport
and
degraded
water
quality.
However,
by
concentrating
from
dairy-waste
onto
biochar
or
as
biosolids,
a
viable
alternative
fertilizer
be
produced
that
will
benefit
soil
health,
promote
carbon
sequestration,
decrease
leaching
into
surface
waters.
In
this
study,
greenhouse
experiment
was
conducted
assess
phosphorus
(P)
speciation
barley
growth
amended
with
treated
fermented
manure.
Phosphorus
characterization
the
post-harvest
determined
using
selective
extractions,
31
P-NMR
XANES
spectroscopy,
isotopic
tracing
(P-δ
18
O).
Selective
extractions
NMR
spectroscopy
revealed
most
P
occurred
inorganic
species
(>85%).
further
showed
either
calcium-P
minerals
(54%–87%)
adsorbed
(0%–46%)
species.
Analysis
P-δ
O
sodium
bicarbonate
water-extracted
pool
is
cycled
much
faster
than
extracted
P.
Although
less
10%
total
dairy-derived
bioproducts
water,
productivity
these
amendments
same
equivalent
amounts
conventional
nitrogen
fertilizer.
This
suggests
are
good
limit
leaching.
RSC Sustainability,
Journal Year:
2023,
Volume and Issue:
1(6), P. 1540 - 1546
Published: Jan. 1, 2023
In
this
study,
a
granular
composite
comprised
of
50%
oat
hulls
(Oh),
10%
kaolinite
(K),
and
40%
modified
chitosan
(Chi)
was
crosslinked
with
epichlorohydrin
(ECH)
subsequently
functionalized
pyridinium.
Water Environment Research,
Journal Year:
2023,
Volume and Issue:
95(5)
Published: May 1, 2023
Iron-ozone
catalytic
oxidation
(CatOx)
shows
promise
in
addressing
challenging
wastewater
pollutants.
This
study
investigates
a
CatOx
reactive
filtration
(Fe-CatOx-RF)
approach
with
two
0.4
L/s
field
pilot
studies
and
an
18-month,
18
full-scale
municipal
deployment.
We
apply
ozone
to
leverage
common
sand
iron
metal
salts
used
water
treatment
into
next-generation
technology.
The
process
combines
micropollutant
pathogen
destructive
removal
high-efficiency
phosphorus
recycling
as
soil
amendment,
clean
recovery,
the
potential
for
carbon-negative
operation
integrated
biochar
treatment.
A
key
innovation
is
converting
continuously
renewed
oxide
coated,
moving
bed
filter
"sacrificial
iron"
d-orbital
catalyst
after
adding
O3
stream.
Results
Fe-CatOx-RF
show
>95%
efficiencies
almost
all
>5
×
LoQ
detected
micropollutants,
rates
slightly
increasing
addition.
Phosphorus
site
most
P-impacted
discharge
was
>98%
serial
filters.
long-term,
optimization
trials
showed
single
90%
TP
removals
of
compounds
detected,
but
less
than
studies.
decreased
mean
86%
during
L/s,
12-month
continuous
stability
trial,
remained
similar
trial
many
efficient
overall.
>4.4
log
reduction
fecal
coliforms
E.
coli
sub-study
suggests
ability
this
address
infectious
disease
concerns.
Life
cycle
assessment
modeling
that
integrating
P
recovery
amendment
makes
overall
at
-1.21
kg
CO2
e/m3
.
indicate
positive
performance
technology
readiness
extended
testing.
Further
work
exploring
operational
variables
essential
establish
site-specific
quality
limitations
responsive
engineering
approaches
optimization.
PRACTITIONERS
POINTS:
Adding
WRRF
secondary
influent
flows
tertiary
ferric/ferrous
salt
dosed
amplifies
mature
disinfection.
Expensive
catalysts
are
not
used.
Iron
remove
other
pollutants
act
sacrificial
ozone,
these
rejected
can
be
returned
upstream
aid
removal.
Biochar
addition
improves
e
sustainability
removal/recovery
long-term
health.
Short
duration
scale
18-month
three
WRRFs
good
results
demonstrate
readiness.
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.