The role of carbon dioxide in emission of ammonia from manure

Hafner, Sasha D.; Montes, Felipe; Rotz, C. Alan

doi:10.1016/j.atmosenv.2012.01.026

Cited by 57 publications

(43 citation statements)

References 25 publications

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“…Generally pH in manure are partly regulated by NH 3 concentration, along with CO 2 , VFAs and other parameters (Hafner et al 2013), while pH will influence the ratio of NH 4 and NH 3 in the manure. Considering the relatively low and stable pH, likely drivers of volatilized NH 3 are initial urea concentration (Webb and Misselbrook 2004), particularly near surface, as pointed out by Kirchmann and Witter (1989).…”

Section: Ammoniacal N and Ph Dynamics Carbon Contents And C:n Ratiosmentioning

confidence: 99%

Impact of manure storage conditions and time on decomposition and losses from liquid dairy manure stored in a temperate climate

et al. 2017

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Large volumes of generated animal manures necessitate knowledge of how its production and storage affects composition, losses, and utilization potential. Stratification of liquid dairy manure was the main source of observed variability within outdoor uncovered manure storage, during a yearlong monitoring of 24 physicochemical manure parameters. Coefficient of variation (CV) ranged from 4-24% for plant nutrients and 33-89% for biogas feedstock parameters. Nitrogen (N) volatilization losses during storage between manure additions were ~10% mo -1 of total Kjeldahl nitrogen (TKN). Acetic acid was up to 100% of total volatile fatty acid (tVFA) concentration. Bioavailability and solubility of manure parameters, reflected in ratios of volatile solids to total solids (VS:TS), total ammoniacal nitrogen to total Kjeldahl nitrogen (TAN:TKN), and dissolved phosphorus to total phosphorus (O-PO 4 :TP) ratios was high. There was substantial pathogen survival during the study with an increased count with added manure. Manure temperature changes and precipitation levels likely played a major role in mineralization and volatilization rates of nutrients and reduction of solids, especially in surface levels of manure in storage. Study results underline the importance of sampling method, timing, and location within stored manure to obtain representative samples unless thorough mixing is previously applied. Further work related to manure properties might benefit from a higher number of farms sampled, provided that consistency in sampling method and analysis is maintained to minimize errors and provide reliable results.

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Section: Ammoniacal N and Ph Dynamics Carbon Contents And C:n Ratiosmentioning

confidence: 99%

Impact of manure storage conditions and time on decomposition and losses from liquid dairy manure stored in a temperate climate

et al. 2017

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“…Ammonia volatilisation is the major pathway for Nitrogen loss (van der Meer 2008;Ndegwa et al 2008). Emission occurs due to manure exposure to atmosphere in barns, during storage and application (Hafner et al 2012). …”

Section: Ruminant Manure Nitrogen Lost During Storagementioning

confidence: 99%

Nitrogen losses in ruminant manure management and use of cattle manure vermicast to improve forage quality

Abdullahi

Ibrahim

Ismail

2014

Int J Recycl Org Waste Agricult

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“…Ammonia release from stored effluent depends on the chemical equilibrium, which relates to the pH value and CO 2 emissions. Hafner et al (2012) reported that CO 2 emissions cause an increase of pH in slurry storage, and the rising pH then contributes to an increase of NH 3 emissions. In the current study, the BDE stored at the shallowest depth emitted the maximum amount of CO 2 ( fig.…”

mentioning

confidence: 99%

Ammonia and Greenhouse Gas Emissions from Biogas Digester Effluent Stored at Different Depths

Wang¹,

Dong²,

Zhu³

et al. 2014

Trans. ASABE

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Carbonaceous and nitrogenous gases are produced during storage of livestock manure, with the magnitude of production being affected by the chemical properties of the manure and the physical conditions of storage. This lab-scale study quantifies the emission rates of ammonia (NH3), nitric oxide (NO), and greenhouse gases (GHG), i.e., methane (CH4), carbon dioxide (CO2), nitrous oxide (N2O), from biogas digester effluent (BDE) stored at different depths of 1.0, 1.5, and 2.0 m in dynamic emission vessels (DEVs). The selected storage depths were reflective of the typical depth range of on-farm BDE storage in China. The static storage was held at a relatively constant media temperature of 15°C and an air exchange rate of 11.5 air changes per hour (ACH) for 78 days. Each depth regimen was replicated four times using four DEVs (12 DEVs total). The results showed that the mean (±SE) daily gaseous emission rates per volume of BDE stored at 1.0, 1.5, and 2.0 m depths, in g gas m-3 d-1, were, respectively, 9.1 (±0.7), 10.1 (±0.6), and 10.1 (±0.4) for CH4 (p = 0.39); 38.0 (±2.2), 34.5 (±1.3), and 30.7 (±0.6) for CO2 (p < 0.05); 1.9 (±0.11), 1.3 (±0.08), and 0.9 (±0.03) for NH3 (p < 0.05); and 6.7 (±0.5) × 10-3, 5.0 (±0.8) × 10-3, and 3.4 (±0.2) × 10-3 for N2O (p < 0.05). Nitric oxide (NO) emissions were negligible. The overall GHG (CH4 + N2O + CO2) emissions were dominated by CH4, which accounted for more than 85% of the CO2-equivalent emissions for all three storage depths. The CH4 emissions peaked during the early storage period, with the first 20-day cumulative emissions accounting for 56% to 58% of the total 78-day storage emissions. The results reveal that storage of BDE at 2.0 m depth yielded lower CO2, NH3, and N2O emission rates but similar CH4 emission rates compared to the 1.0 and 1.5 m depths.

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The role of carbon dioxide in emission of ammonia from manure

Cited by 57 publications

References 25 publications

Impact of manure storage conditions and time on decomposition and losses from liquid dairy manure stored in a temperate climate

Impact of manure storage conditions and time on decomposition and losses from liquid dairy manure stored in a temperate climate

Nitrogen losses in ruminant manure management and use of cattle manure vermicast to improve forage quality

Ammonia and Greenhouse Gas Emissions from Biogas Digester Effluent Stored at Different Depths

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