Livestock activities are responsible for remarkable environmental impacts. Ammonia (NH3) is the most common air pollutant in pig farms, affecting animals and workers’ health, and causing damages to ecosystems. Hence, there is a need to reduce NH3 emissions. Many mitigation strategies can be applied to limit gaseous emissions, such as the application of air treatment technologies. In this study, carried out during the APPROAch project (“Sistemi filtranti per la riduzione di polveri, odori e ammoniaca e per migliorare il benessere di animali e operatori all’interno delle porcilaie”), the environmental impact of a typical Italian pig farm, adopting a wet acid scrubber to abate NH3 emissions, was evaluated using the Life Cycle Assessment approach. One kg of live weight (LW) was selected as Functional Unit. Two scenarios were considered. The baseline scenario (BS) represents the situation as it is, while the alternative scenario (AS) a wet scrubber prototype (with 70% ammonia removal efficiency) was adopted. For 8 of the 12 evaluated impact categories, AS shows the highest environmental impact, due to the scrubber construction and maintenance. However, it was the best for those impact categories most affected by NH3. Observed reduction ranged from 10% (for terrestrial acidification, TA, and terrestrial eutrophication, TE) to 0.4% (for marine eutrophication, ME). The climate change impact was 3.55 kg CO2 eq kg-1 LW and 3.65 kg CO2 eq kg-1 LW for BS and AS, respectively. For almost all impact categories, the consumable materials for wet scrubber operation represented around 85% of the total impact of the scrubber. The results of the sensitivity analysis showed that variation in NH3 removal efficiency had the greatest effect on particulate matter formation, TA, and TE. The achieved results provide a first quantitative indication of the environmental benefits that can be achieved using wet acid scrubber in naturally ventilated pig facilities.

Sistemi di abbattimento delle emissioni nelle porcilaie: che benefici per l’ambiente / G. Coppola, C. Conti, M. Costantini, J. Bacenetti, M. Guarino - In: Il convegno AISSA #UNDER40Prima edizione. - Sassari : AISSA, 2021 Jul. - pp. 25-25 (( Intervento presentato al 2. convegno AISSA under 40 tenutosi a Sassari nel 2021.

Sistemi di abbattimento delle emissioni nelle porcilaie: che benefici per l’ambiente

G. Coppola
Primo
;
C. Conti;M. Costantini
;
J. Bacenetti;M. Guarino
2021-07

Abstract

Livestock activities are responsible for remarkable environmental impacts. Ammonia (NH3) is the most common air pollutant in pig farms, affecting animals and workers’ health, and causing damages to ecosystems. Hence, there is a need to reduce NH3 emissions. Many mitigation strategies can be applied to limit gaseous emissions, such as the application of air treatment technologies. In this study, carried out during the APPROAch project (“Sistemi filtranti per la riduzione di polveri, odori e ammoniaca e per migliorare il benessere di animali e operatori all’interno delle porcilaie”), the environmental impact of a typical Italian pig farm, adopting a wet acid scrubber to abate NH3 emissions, was evaluated using the Life Cycle Assessment approach. One kg of live weight (LW) was selected as Functional Unit. Two scenarios were considered. The baseline scenario (BS) represents the situation as it is, while the alternative scenario (AS) a wet scrubber prototype (with 70% ammonia removal efficiency) was adopted. For 8 of the 12 evaluated impact categories, AS shows the highest environmental impact, due to the scrubber construction and maintenance. However, it was the best for those impact categories most affected by NH3. Observed reduction ranged from 10% (for terrestrial acidification, TA, and terrestrial eutrophication, TE) to 0.4% (for marine eutrophication, ME). The climate change impact was 3.55 kg CO2 eq kg-1 LW and 3.65 kg CO2 eq kg-1 LW for BS and AS, respectively. For almost all impact categories, the consumable materials for wet scrubber operation represented around 85% of the total impact of the scrubber. The results of the sensitivity analysis showed that variation in NH3 removal efficiency had the greatest effect on particulate matter formation, TA, and TE. The achieved results provide a first quantitative indication of the environmental benefits that can be achieved using wet acid scrubber in naturally ventilated pig facilities.
LCA; scrubber
Settore AGR/09 - Meccanica Agraria
Settore AGR/10 - Costruzioni Rurali e Territorio Agroforestale
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/854630
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