Sulfate Additives Cut Methane Emissions More Effectively at Lower Liquid Manure Storage Temperatures

ACS Agricultural Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Language: Английский

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Evaluating Intergovernmental Panel on Climate Change Methods for Methane Emission Estimate From Lagoon‐Based Swine Manure Management Systems

Environmental Quality Management, Journal Year: 2025, Volume and Issue: 34(4)

Published: March 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.

Language: Английский

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Efficient manure management in achieving net-zero goals in the dairy sector

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 369 - 395

Published: Jan. 1, 2025

Language: Английский

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Acidification of animal slurry in housing and during storage to reduce NH3 and GHG emissions-recent advancements and future perspectives

Waste Management, Journal Year: 2025, Volume and Issue: 203, P. 114856 - 114856

Published: May 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.

Language: Английский

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Mitigating Gas Emissions from the Dairy Slurry Management Chain: An Enhanced Solid–Liquid Separation Technology with Tannic Acid

Agronomy, Journal Year: 2025, Volume and Issue: 15(5), P. 1202 - 1202

Published: May 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.

Language: Английский

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Mitigating Ammonia, Methane, and Carbon Dioxide Emissions from Stored Pig Slurry Using Chemical and Biological Additives

Water, Journal Year: 2023, Volume and Issue: 15(23), P. 4185 - 4185

Published: Dec. 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.

Language: Английский

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Preliminary Results on the Use of Straw Cover and Effective Microorganisms for Mitigating GHG and Ammonia Emissions in Pig Slurry Storage Systems

Agriculture, Journal Year: 2024, Volume and Issue: 14(10), P. 1788 - 1788

Published: Oct. 11, 2024

Spain has been the largest pork producer in EU recent years, leading to significant pig slurry (PS) production that requires proper management prevent environmental impacts. The objectives of this study were quantify greenhouse gas (GHG) and ammonia emissions characterize PS storage pond systems. A straw cover (SP) addition effective microorganisms (EMs) a biological (BP) used treat slurries. During two periods (autumn spring), was characterized GHG (CO2, CH4, N2O) NH3 measured with dynamic chamber. After 5 weeks storage, BP achieved reduction 96% for CO2, 98% CH4 59% compared control (CP) spring, while SP presented 74% CO2 autumn, 60% 97% reductions NH3, respectively, spring. Additionally, samples showed decreasing trend EC, dry matter, COD, BOD5, total N, NH4+-N, Org.-N, NO3−-N, PO43− during both seasons. This preliminary shows promise reducing GHG/NH3 improving properties, but further replication is recommended. Varying thickness, optimizing EM dose, pH may enhance outcomes.

Language: Английский

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Hotspots and bottlenecks for the enhancement of the environmental sustainability of pig systems, with emphasis on European pig systems

Porcine Health Management, Journal Year: 2023, Volume and Issue: 9(1)

Published: Nov. 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).

Language: Английский

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The influence of using different types of modified vermiculite cover on ammonia mitigation from animal slurry storage: The role of sulfuric acid

Waste Management, Journal Year: 2024, Volume and Issue: 178, P. 311 - 320

Published: March 1, 2024

Language: Английский

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Dose-dependent effects of sodium dodecyl sulfate and hydrogen peroxide treatments on methane emission from pig manure during storage

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 364, P. 121415 - 121415

Published: June 12, 2024

Language: Английский

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