Effect of covering pig slurry stores on the ammonia emission processes

Portejoie, S.; Martinez, J.; Guiziou, Fabrice; Coste, Camille

doi:10.1016/s0960-8524(02)00260-2

Cited by 69 publications

(69 citation statements)

References 23 publications

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“…For the straw, leca, peat, and sawdust cover tests, we used the same thickness to allow a comparison of the effect of different covers on the same gas emission. A thickness of covers similar to those in our study, were used by Portejoie et al (2003) and a high emission reduction effect was found that supports the validity of our choice of cover thickness.…”

Section: Discussionsupporting

confidence: 82%

“…The highest average reduction of NH3 emission in our study was 73%. A higher reduction (99%) was detected by Portejoie et al (2003) during storage of pig slurry covered with plastic film. They also found that NH3 emission was reduced by 93%, 77% to 100%, and 93% to 98% when using oil, peat, and zeolite, respectively.…”

Section: Discussionmentioning

confidence: 88%

“…Portejoie et al (2003) and Berg et al (2006) also found that various materials used for covering manure have a reduction effect on NH3 emission. In our experiment, the best reduction of NH3 emission was achieved by covering manure with three types of covers: sawdust, straw, and plastic film cover.…”

Section: Discussionmentioning

confidence: 93%

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The effect of floating covers on gas emissions from liquid pig manure

Matulaitis

Jukiené

Juka

2015

Chilean J. Agric. Res.

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Livestock manure is the source of different pollutant gases that can generate soil acidification, eutrophication, and contribute to global warming, or have a negative impact on health. Covers can control gas emissions from manure, but their impact is still under discussion. The aim of this experiment was to study the effect of different covers on methane (CH4), nitric oxide (NO), hydrogen sulfide (H2S), ammonia (NH3), carbon monoxide (CO), and carbon dioxide (CO2) emissions from liquid pig manure. Six types of floating covers were tested: light expanded clay aggregate (leca), peat, sunflower oil, sawdust, straw, and plastic film. Manure was stored at 5, 15, and 25 °C for 37 d. Gas emissions were measured from the headspaces of the dynamic chambers. The results of our study showed that both cover and temperature have a noticeable impact on gas emissions from liquid pig manure. The plastic film cover was the most efficient at all tested temperatures because it reduced emissions of all the measured gases. In this case, mean emission reductions were: CH4 91.5% (P < 0.01), NO 92.0% (P < 0.05), H2S 78.1% (P < 0.05), NH3 54.7% (P < 0.01), CO 98.4% (P < 0.01), and CO2 67.1% (P < 0.01). Other covers had an inconsistent impact on separate gas emissions. However, covers generally helped to decrease NH3, H2S, and CO2 emissions.

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Section: Discussionsupporting

confidence: 82%

Section: Discussionmentioning

confidence: 88%

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The effect of floating covers on gas emissions from liquid pig manure

Matulaitis

Jukiené

Juka

2015

Chilean J. Agric. Res.

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“…The acid trap method consists in continuously passing the sampled air through acid traps (0.5N sulphuric acid) at an airflow of 5 L•min −1 [10] [28] followed by alkaline distillation and titration of the final acid ammonia solution. For NH 3 measurement by infrared absorption spectrometry, the detection limit of the Innova 2012 was 0.2 ppm for NH 3 , 0.4 ppm for CH 4 , 2.5 ppm for CO 2 and 0.03 ppm for N 2 O. CH 4 and CO 2 concentrations were determined by infrared detection (URAS 10, 14 and Innova 1312).…”

Section: Description Of the Coversmentioning

confidence: 99%

“…and naturally formed crusts [7]- [9]. These covers reduce NH 3 emission by reducing the permeability and resistance of the surface to ammonia transfer, or by reducing the size of the emitting surface [10] [11]. A review by Vander Zaag et al [12] reported a reduction between 50% and 100% of NH 3 emissions depending on the type of cover.…”

Section: Introductionmentioning

confidence: 99%

Farm-Scale Applicability of Three Covers (Peat, Polystyrene Balls and Synthetic Sheet Roof) to Reduce Ammonia Emissions from Pig Slurry Storage

Loyon¹,

Guiziou²,

Picard³

et al. 2016

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Covering the slurry pit has been shown to be one of the best ways to reduce ammonia emissions (NH 3 ) during manure management. Yet, few studies have been conducted at farm scale. We studied the feasibility of three cover materials (peat, polystyrene balls and synthetic sheet roof) to reduce ammonia (NH 3 ) emissions during on-farm storage of pig slurry. The impact on greenhouse gas emissions, methane (CH 4 ), nitrous oxide (N 2 O) and carbon dioxide (CO 2 ) of covering the slurry pit was also evaluated. Simultaneous field experiments were carried out using two similar pits at a farm with peat and polystyrene ball covers, which allowed direct comparison of the feasibility of the two covers to reduce gas emissions (measured using the dynamic chamber technique). Emissions from the third option (using a synthetic sheet roof) were estimated by measuring the concentrations in the headspace under the cover and the air leakage from the cover with a tracer gas (CO 2 ). Results showed that the polystyrene balls cover reduced emissions of NH 3 during storage by up to 80% whatever the season, but increased potential greenhouse gas emissions by 20% in summer. No consistent reduction was achieved with the peat cover even though some individual results seemed to indicate up to 25% reduction in ammonia emissions; moreover, there was a 30% increase in CH 4 and CO 2 emissions during the storage period. The use of a synthetic sheet roof enabled up to 90% reduction in NH 3 , CH 4 and CO 2 emissions whatever the season.

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