Cleaner Environmental Systems,
Journal Year:
2023,
Volume and Issue:
12, P. 100157 - 100157
Published: Dec. 6, 2023
Pig
slurry
is
an
agricultural
residue
with
potential
for
utilisation
as
organic
fertiliser
and
biomethane
feedstock.
That
value
typically
diminished
via
greenhouse
ammonia
gaseous
losses
during
temporary
storage,
issue
further
exacerbated
by
the
global
warming,
pollutant
malodorous
nature
of
those
compounds.
Existing
methods
reducing
emissions
from
pig
may
require
significant
capital
outlay
and/or
prove
difficult
to
retrofit.
A
promising
reactive
oxygen-based
additive
(GasAbate®)
was
thus
scaled-up
1
m3
tanks
filled
750
L
weaner
slurry.
Several
experiments
were
carried
out
in
three
distinct
phases,
namely
i.
ambient
temperature
scale-up;
ii.
heated
trials
determine
optimal
application
method;
iii.
compare
results
static
dynamic
chamber
scenarios,
each
iteration
aiming
garner
understanding
treatment
efficacy
under
various
conditions.
The
demonstrate
scalability
this
additive,
its
total
volume
(63–90%
reduction),
(22–58%
reduction)
compound
evolution
(22–83%
reduction
a
range
compounds)
storage
resulting
retention
energy
nutrient
slurry,
34–57%
higher
potential.
use
could
be
well
suited
farms
that
short-term
(ca.
30
days)
before
feeding
biogas
system.
Journal of Environmental Quality,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 17, 2025
Abstract
Dairy
farmers
are
interested
in
reducing
the
carbon
footprint
of
milk.
Reducing
methane
(CH
4
)
emissions
is
a
key
part
this
goal,
and
manure
significant
CH
source.
Technologies
like
anaerobic
digesters
for
biogas
production
effective;
however,
adoption
rates
slowed
by
upfront
costs
infrastructure
needs.
Achieving
near‐term
emission
reductions
needs
low‐cost
alternatives
that
can
be
quickly
widely
adopted.
Previous
studies
have
shown
“acidification”
adding
sulfuric
acid
(H
2
SO
suppressed
emissions;
widespread
may
hindered
challenge
handling
on
farms.
This
laboratory
study
was
performed
157
days
at
24°C,
compared
efficacy
sulfate‐based
non‐acidic
fertilizer
(CaSO
),
two
acidification,
one
pH
>
7
<
7,
sulfate‐free
3
PO
).
Methane
suppression
CaSO
multiple
also
analyzed.
Two
mechanisms
were
observed:
acidification
had
demonstrable
early
effect,
lowering
cumulative
within
40
up
to
65%
H
54%
,
while
sulfate‐containing
compounds
showed
increasing
after
50
days.
Final
63%
91%
least
effective.
These
results
suggest
highly
effective
due
combination
acidity
sulfate.
Adding
sulfate
alone
more
than
Hence,
additives—like
gypsum—may
hold
promise
as
an
alternative
solution
dairy
farms
make
large
reductions.
Nutrient Cycling in Agroecosystems,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 15, 2024
Abstract
The
use
of
livestock
waste
as
an
organic
fertiliser
releases
significant
greenhouse
gas
emissions,
exacerbating
climate
change.
Innovative
management
practices,
such
treating
slurry
with
plasma
induction,
have
the
potential
to
reduce
losses
carbon
and
nitrogen
environment.
existing
research
on
effectiveness
plasma-treated
at
reducing
nitrous
oxide
(N
2
O)
methane
(CH
4
)
however,
is
not
comprehensive,
although
must
be
understood
if
this
technology
utilised
a
large
scale.
A
randomised
block
experiment
was
conducted
measure
soil
fluxes
N
O
CH
from
winter
wheat
every
two
hours
over
83-day
period
using
automated
chambers.
Three
treatments
receiving
similar
amount
plant-available
were
used:
(1)
inorganic
(IF);
(2)
pig
combined
(PS);
(3)
(TPS).
Cumulative
TPS
(1.14
g
m
−2
greater
than
those
PS
(0.32
IF
(0.13
).
diurnal
pattern
in
observed
towards
end
for
all
treatments,
driven
by
increases
water-filled
pore
space
photosynthetically
active
radiation
decreases
air
temperature.
(3.2
C
considerably
(−
1.4
intensity
(0.2
CO
-eq
kg
grain
−1
twice
that
(0.07
around
six
times
(0.03
Although
induction
reduced
soil,
it
increased
resulting
higher
non-CO
emissions
treatment.
Life-cycle
analysis
will
required
evaluate
whether
upstream
manufacturing
transport
associated
usage
are
outweighed
following
application
treated
soil.
Sustainability,
Journal Year:
2023,
Volume and Issue:
16(1), P. 265 - 265
Published: Dec. 27, 2023
In
recent
years,
the
Canadian
dairy
sector
has
faced
escalating
challenges
due
to
its
significant
contribution
greenhouse
gas
emissions,
particularly
methane.
This
paper
critically
examines
a
spectrum
of
innovative
techniques
aimed
at
mitigating
methane
emissions
within
this
sector,
scrutinizing
their
cost-effectiveness,
efficiency,
compatibility
with
animal
welfare
standards,
and
adherence
both
existing
prospective
environmental
legislations.
The
discourse
begins
an
exhaustive
overview
contemporary
reduction
methodologies
relevant
farming,
followed
by
rigorous
analysis
economic
feasibility.
includes
detailed
cost-benefit
analysis,
juxtaposed
efficiency
technological
advancements
these
embody.
A
pivotal
aspect
examination
is
alignment
emission
objectives,
ensuring
that
strategies
employed
do
not
compromise
health
well-being
cattle.
Furthermore,
delves
into
legislative
landscape
Canada,
evaluating
congruence
current
laws
anticipating
future
regulatory
shifts.
Performance
indicators
for
are
assessed,
establishing
benchmarks
tailored
context.
complemented
exploration
market
potential
innovations,
including
factors
influencing
adoption
scalability
in
market.
culminates
synthesis
case
studies
best
practices
offering
insights
successful
implementations
drawing
lessons
endeavors.
comprehensive
approach
only
addresses
immediate
impacts
associated
farming
but
also
significantly
contributes
overarching
goal
sustainable
development
agricultural
sector.
research
presented
holds
implications
model
addressing
while
maintaining
viability
welfare.
Agriculture,
Journal Year:
2024,
Volume and Issue:
14(1), P. 162 - 162
Published: Jan. 22, 2024
The
contribution
of
animal
waste
storage
on
GHG
emissions
and
climate
change
is
a
serious
issue
for
agriculture.
carbon
that
are
generated
from
barns
represent
relevant
source
negatively
affect
the
environmental
performance
measures
livestock
production.
In
this
experiment,
CO2
CH4
different
wastes,
namely,
digestate,
slurry,
manure,
were
evaluated
both
in
their
original
form
with
biochar
addition.
monitored
using
static
camber
methodology
portable
gas
analyzer
21-day
period.
addition
(at
ratio
2:1
between
substrates
biochar)
significantly
reduced
gases
compared
to
untreated
substrates.
Slurry
exhibited
higher
due
its
elevated
emission
tendency.
by
26%
21%,
respectively,
slurry.
main
effect
was
where
decreased
45%
78%
CH4.
Despite
lower
tendency
emit
carbon-based
still
caused
decreases
(40%)
(81%)
emissions.
Biochar
impacts
all
treatments,
GWP
reduction
55%
22%
44%
manure.
Waste Management & Research The Journal for a Sustainable Circular Economy,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 28, 2024
This
study
aimed
at
assessing
the
efficacy
of
manure
amendments
in
abating
ammonia
(NH
3
)
and
methane
(CH
4
emissions
during
storage.
Two
experiments
were
carried
out.
Experiment
1
was
conducted
using
20
L
slurry
for
98
days.
Treatments
were:
aluminium
sulphate
(alum),
lactogypsum,
zeolite,
actiglene,
ammonium
thiosulphate,
biochar,
dairy
processing
waste,
Digest-IT
control
(without
amendment).
2
660
underground
storage
tanks
77
sulphuric
acid,
gypsum,
biochar
NH
measurements
experiment
photoacoustic
gas
monitor
dynamic
chamber
techniques,
respectively.
CH
measured
static
technique
both
experiments.
The
effect
on
composition
determined
end
showed
a
significant
reduction
alum
(82%),
lactogypsum
(46%)
zeolite
(32%)
treatments
relative
to
(100.3%
total
ammoniacal
nitrogen
(TAN)).
reduced
significantly
(87%),
thiosulphate
(64%)
(67%)
(291.9
g
m
−2
).
acid
(4.4%
TAN).
(46%),
gypsum
(39%)
(15%)
In
general,
altered
such
as
dry
matter,
volatile
solids,
carbon
contents
Lactogypsum,
effective
can
contribute
improving
air
quality.
Greenhouse Gases Science and Technology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 27, 2025
ABSTRACT
Direct
measurements
of
greenhouse
gas
emissions
from
the
increasingly
intensified
African
livestock
production
are
important
to
assess
locally
available
mitigation
strategies.
As
such,
were
conducted
March
June
using
static
flux
chambers
quantify
emission
rates
CH
4
,
N
2
O,
and
CO
manure
in
poultry
pig
systems
Cameroon.
Emissions
measured
two
layer
barns,
facilities,
six
broiler
farms,
one
farm
with
Brahman
birds.
Mean
factors
inside
barns
0.06–0.21
602–958
mg
animal
−1
h
for
2,
respectively,
21–112
µg
O.
four
wood
shavings
as
bedding
material
0.31–1.22
355–1884
2.33–1052
Broiler
O
971.38
±
250.23
26.14
30.27
underneath
a
meshed
floor
barn
shelter
bare
soil,
respectively.
storage
tank
wastewater
piggery
8.30
7.36
40.41
5.54
m
−2
min
2.80
1.67
outdoor
storages
mixture
0.76–0.9
69–136
10–15
depended
highly
on
management
systems.
lower
compared
manure.
Younger
layers
emitted
higher
older
hens.
slurry
solid
manure,
whereas
storages.
These
findings
indicate
that
strategies
should
depend
not
only
type
gases
but
also
types
their
ages.
Proceedings of the Royal Society A Mathematical Physical and Engineering Sciences,
Journal Year:
2025,
Volume and Issue:
481(2309)
Published: March 1, 2025
This
review
summarizes
the
rapid
advances
in
direct
practical
methods
to
quantify
and
reduce
agricultural
methane
emissions
worldwide.
Major
tasks
are
location,
identification,
quantification
distinction
between
different
specific
sources
(often
multiple
emitters
such
as
manure
pools,
animal
housing,
biodigesters
landfills
co-located).
Emission
reduction,
facilitated
by
developing
methodologies
for
locating
hot
spots,
is
least-cost
choice
action,
especially
from
stores,
controlling
biomass
burning.
Agricultural
can
also
be
used
generate
electricity
or,
appropriate
circumstances,
destroyed
oxidation.
It
may
possible
cut
North
American,
East
Asian
European
sharply
rapidly.
In
Africa
South
Asia,
crop
waste
food
landfills,
a
source
of
air
pollution,
quickly
reduced.
Globally,
cutting
total
annual
third
would
demand
reductions
very
approximately
75
Tg
yr
−1
.
Apportioned
type,
notional
cuts
might
30–40
livestock
manure,
5-10
rice
cultivation
20
or
more
specifically
waste.
