Cleaner Environmental Systems,
Год журнала:
2023,
Номер
12, С. 100157 - 100157
Опубликована: Дек. 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.
Environmental Quality Management,
Год журнала:
2025,
Номер
34(4)
Опубликована: Март 24, 2025
ABSTRACT
To
support
national
estimates
of
methane
(CH
4
)
emissions
from
manure
management
systems,
the
Intergovernmental
Panel
on
Climate
Change
(IPCC)
proposed
guidelines
that
include
three
tiers,
which
Tier
1
and
2
methodologies
are
most
used.
The
choice
each
methodology
is
often
driven
by
data
availability.
application
IPCC
approach
uses
default
emission
factors
requires
less
compared
to
2,
considered
a
more
advanced
methodology.
Nevertheless,
no
study
has
addressed
implications
estimation
CH
swine
systems.
Subsequently,
there
barely
any
quantitative
information
discrepancies
expect
when
using
or
for
estimating
significant
sources
such
as
open‐air
waste
treatment
lagoons.
Hence,
this
used
estimate
feeder‐to‐finish
lagoons
across
North
Carolina
region.
Precisely,
updated
were
applied
farm,
county,
state
level
farms
quantify
anaerobic
Results
show
2's
higher,
sustaining
discrepancy
6.7%
between
two
Tiers’
methodologies.
Quantitatively,
differences
tiers’
totaled
7320
Mg
/year
(197640
CO
equivalent/year)
at
unequally
distributed
among
counties
farms.
comparative
analysis
highlighted
meaningful
contrast
Tiers
per
head
unit
animal
weight
direct
measurements
lagoons’
in
Carolina.
likely
due
large
part
errors
measurements,
suggesting
need
techniques
situ
measurements.
highlights
trade‐off
related
approaches,
reported
could
be
useful
better
understand
inventories.
Waste Management,
Год журнала:
2025,
Номер
203, С. 114856 - 114856
Опубликована: Май 5, 2025
Ammonia
and
greenhouse
gas
emissions
are
an
environmental
issue
associated
with
animal
manure
management.
Concrete,
practical,
economic
solutions
needed
for
farmers
other
stakeholders
around
the
globe
to
solve
this
issue.
Decreasing
slurry
pH
help
of
acids
or
compounds
is
a
well-documented
technique
reduce
ammonia
methane
from
slurry.
However,
effect
acidification
on
N2O
still
not
clear.
Recently,
acidifying
agents
than
previously
used
mineral
have
been
tested
such
as
e.g.
organic
acids,
bio-waste
materials,
microbial
inoculations.
effectiveness
these
in
reducing
mitigation
gaseous
further
needs
be
reviewed.
Also,
combination
treatments
composting,
solid-liquid
separation,
anaerobic
digestion
requires
consideration
whole-system
solutions.
Here,
recent
studies
compiled
reviewed
determine
applicability
options
management
deepen
our
understanding
impact
acidification.
The
literature
review
revealed
that
temperature
fluctuations
substantial
acidified
slurry's
performance
during
storage.
A
viable
substitute
conventional
could
biomaterials
like
sugars
whey,
microbes.
Furthermore,
apple
pulp,
sugar
beet
molasses,
grass
silage
examples
products
exhibit
promise
agents.
gain
better
viability
usefulness
recently
evaluated
compounds,
more
research
required.
Agronomy,
Год журнала:
2025,
Номер
15(5), С. 1202 - 1202
Опубликована: Май 15, 2025
Identifying
novel
flocculants
to
improve
the
separation
efficiency
of
dairy
slurries
is
important
facilitate
slurry
recycling
with
a
low
carbon
footprint.
Two
microcosm
experiments
were
conducted
differentiate
ammonia
(NH3),
nitrous
oxide
(N2O),
dioxide
(CO2),
and
methane
(CH4)
emissions
from
liquid
solid
fractions
obtained
using
conventional
(mechanical
separator)
enhanced
(flocculant
+
mechanical
solid–liquid
(SLS)
methods
during
storage
soil
application
phases.
Tannic
acid
(TA)
was
investigated
as
potential
flocculant
in
order
explore
its
effectiveness
reducing
greenhouse
gas
(GHG)
Compared
SLS
method,
employment
method
reduced
GHG
phases
by
53.64%
31.63%,
respectively,
thereby
leading
an
integrative
mitigation
across
chain;
however,
it
strongly
increased
NH3
70.96%
phase,
demonstrating
higher
risk
gaseous
N
loss.
Meanwhile,
large
trade-offs
N2O,
CH4,
between
phase
observed,
CH4
also
partly
offset
phase.
In
conclusion,
technology
tannic
can
reduce
management
chain,
synergistic
but
requires
further
attention.
This
study
may
be
helpful
mitigating
plant-derived
circular
agriculture
context.
Water,
Год журнала:
2023,
Номер
15(23), С. 4185 - 4185
Опубликована: Дек. 4, 2023
This
study
addresses
the
challenge
of
mitigating
ammonia
and
greenhouse
gas
(GHG)
emissions
from
stored
pig
slurry
using
chemical
biological
additives.
The
research
employs
dynamic
chambers
to
evaluate
effectiveness
these
Chemical
agents
(sulfuric
acid)
additives
(DAB
bacteria)
containing
specific
microbial
strains
are
tested
(a
mixture
Rhodopseudomonas
palustris,
Bacillus
subtilis,
amyloliquefaciens,
licheniformis,
Nitrosomona
europea,
Nictobacter
winogradaskyi,
nutritional
substrate).
Controlled
experiments
simulate
storage
conditions
measure
ammonia,
methane,
carbon
dioxide.
Through
statistical
analysis
results,
this
evaluates
additives’
impact
on
emission
reduction.
Sulfuric
acid
demonstrated
a
reduction
92%
in
CH4,
99%
CO2,
NH3
emissions.
In
contrast,
showed
lesser
with
an
8%
reduction,
but
more
substantial
reductions
71%
for
CO2
77%
NH3.These
results
shed
light
feasibility
employing
mitigate
environmental
impacts
management
contribute
sustainable
livestock
practices
by
proposing
strategies
reduce
ecological
consequences
intensive
animal
farming.
Porcine Health Management,
Год журнала:
2023,
Номер
9(1)
Опубликована: Ноя. 16, 2023
Abstract
Although
pig
systems
start
from
a
favourable
baseline
of
environmental
impact
compared
to
other
livestock
systems,
there
is
still
scope
reduce
their
emissions
and
further
mitigate
associated
impacts,
especially
in
relation
nitrogen
phosphorous
emissions.
Key
hotspots
production
are
activities
with
feed
manure
management,
as
well
direct
(such
methane)
the
animals
energy
use.
A
major
contributor
impacts
inclusion
soya
diets,
since
European
rely
heavily
on
imported
areas
globe
where
crop
significant
land
use
change,
deforestation,
carbon
emissions,
loss
biodiversity.
The
“finishing”
stage
contributes
most
these
due
amount
consumed,
efficiency
which
utilised,
produced
during
this
stage.
By
definition
therefore,
any
substantial
improvements
system
would
arise
changes
management.
In
paper,
we
consider
potential
solutions
towards
sustainability
at
components,
bottlenecks
that
inhibit
effective
implementation
desired
pace
magnitude.
Examples
include
quest
for
alternative
protein
sources
soya,
limits
(perceived
or
real)
genetic
improvement
pigs,
management
strategies,
such
biogas
through
anaerobic
digestion.
review
identifies
discusses
future
efforts
can
focus
on,
advance
understanding
around
benefits
modifications
various
key
trade-offs
across
environment—economy—society
pillars
synergistic
antagonistic
effects
when
joint
multiple
considered.
way,
opens
discussion
facilitate
development
holistic
decision
support
tools
farm
account
interactions
between
“feed
*
animal
manure”
components
priorities
(e.g.,
vs
economic
performance
system;
welfare
impacts).
Journal of Animal Science and Technology,
Год журнала:
2024,
Номер
66(6), С. 1083 - 1098
Опубликована: Окт. 14, 2024
The
increase
in
greenhouse
gas
(GHG)
emissions
has
resulted
climate
change
and
global
warming.
Human
activities
many
sectors,
including
agriculture,
contribute
to
approximately
9.2%
of
total
GHG
from
Annex
I
countries.
An
argument
on
issues
livestock
being
the
highest
contributor
grown
since
FAO's
2006
report
Livestock's
Long
Shadow.
issue
continued
growing,
conflicting
importance
industry
terms
food
security
livelihoods,
thus,
monitoring
emission
this
sector
is
vital.
most
commonly
used
methods
for
calculating
are
life
cycle
assessment
(LCA)
inventory.
Although
LCA
presents
information
impacts
environment,
inventory
main
tool
internationally
reporting.
This
review
comprehensively
discusses
source
its
estimation
methodology,
as
well
current
strategies
mitigating
these
emissions.