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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Invited review: Combined mitigation of methane and ammonia emissions from dairy barns through barn design, ventilation and air treatment systems

Journal of Dairy Science, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский

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Effect of low-dose acidification of slurry digestate on ammonia emissions after field application (Short Communication)

Atmospheric Environment X, Journal Year: 2023, Volume and Issue: 17, P. 100205 - 100205

Published: Jan. 1, 2023

Field application of digestate from liquid animal manure (slurry) poses an environmental risk due to emission ammonia (NH3). Various techniques can reduce NH3 losses. Three experiments were conducted in Denmark where after field anaerobically digested separated cattle slurry was measured using dynamic flux chambers with online measurements. The results showed that acidifying the at a low level equal crop sulphur requirement reduced average by 13% compared non-acidified trailing shoe digestate. Disc injection emissions even more 38% application. There large variation mitigation effect between experiments.

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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Real-Scale Study on Methane and Carbon Dioxide Emission Reduction from Dairy Liquid Manure with the Commercial Additive SOP LAGOON

Sustainability, Journal Year: 2023, Volume and Issue: 15(3), P. 1803 - 1803

Published: Jan. 17, 2023

Reducing methane (CH4) is a key objective to address climate change quickly. Manure management and storage play significant role. In this context, real-scale trial was performed measure the ability of commercial additive SOP LAGOON reduce carbon-based greenhouse gas (GHG) emissions from liquid manure over approximately 4 months. Gas were measured at dairy farm two slurry tanks, one treated with abovementioned product (SL) other used as untreated control (UNT). After 3 months first applications, SL tank showed lower statistically significantly different concerning UNT (up −80% for CH4 −75% CO2, p < 0.001), confirming showing improved results those reported in previous small-scale works. The pH than that on dates, while chemical characteristics not affected. work, proved be an effective help farmers mitigate contribution stored global emissions, potentially improving overall sustainability industry.

Language: Английский

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Effects of surfactant, oxidant, and flocculant treatments on methane emission from pig slurry during storage

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 430, P. 139665 - 139665

Published: Nov. 10, 2023

Reducing methane (CH4) emission from livestock production can be achieved by the treatment of manure in slurry pits and storage tanks. In case pits, treating residual left out after frequent flushing largely reduce CH4 due to decrease methanogenic inoculum. this study, three surfactants, two oxidants a flocculant were screened for their efficiency reducing pig headspace setup. All surfactants reduced > 95% at dosage 8 g kg−1 particularly sodium dodecyl sulfate (SDS) was effective low only 2.5 with >95% reduction. Oxidants 30–85% different dosages, hypochlorite being most effective. Flocculant did not emissions significantly. None studied treatments ammonia Similarities pathway observed among surfactant treated slurries, oxidant slurries. Considering cost environmental effects additives, SDS seems promising choice. Future work on could either as combination other additives or up-scaling designing solutions houses.

Language: Английский

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In-vitro method and model to estimate methane emissions from liquid manure management on pig and dairy farms in four countries

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 353, P. 120233 - 120233

Published: Feb. 1, 2024

Methane (CH

Language: Английский

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Prolonging the time of manure by water soaking can alleviate the inhibition of lime disinfection wastewater in a batch anaerobic digestion of swine manure

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(5), P. 113466 - 113466

Published: July 1, 2024

Language: Английский

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Frequent export of pig slurry for outside storage reduced methane but not ammonia emissions in cold and warm seasons

Waste Management, Journal Year: 2023, Volume and Issue: 169, P. 223 - 231

Published: July 15, 2023

Manure management is a significant source of methane (CH4) and ammonia (NH3), there an urgent need for strategies to reduce these emissions. More frequent export manure outside storage can lower gaseous emissions from housing facilities, but the longer residence time may then increase during storage. This study examined CH4 NH3 liquid pig (pig slurry) removed in-house slurry collection pits at three different frequencies, i.e., times per week (T2.3), once (T7), or after 40 days (T40, reference). The treatments T2.3 T7 was transferred weekly over four weeks, treatment T40 days, in connection with summer winter production cycles growing-finishing pigs. stored pilot-scale tanks solid cover continuous ventilation. Compared T40, increased storage, were reduced even more, net effects on total (housing unit storage) reductions 18-41% 53-83% winter. led more emissions, except T2.3, which has funnel inserts beneath slatted floor. Measurements in-vitro rates suggested that shorter houses delayed development active methanogenic populations, this contributed reduction

Language: Английский

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Co-application of concentrated biogas slurry and pyroligneous liquor mitigates ammonia emission and sustainably releases ammonium from paddy soil

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 912, P. 169078 - 169078

Published: Dec. 13, 2023

Language: Английский

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