Greenhouse gas emissions from stored liquid swine manure in a cold climate

Park, Kyu Hyun; Thompson, A. G.; Marinier, Michèle; Clark, Karen; Wagner-Riddle, Claudia

doi:10.1016/j.atmosenv.2005.09.075

Cited by 82 publications

(66 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…, which is within literature values for deep-pit systems ranging from 0.24 to 63 mg CH 4 m À2 -min À1 (Park et al, 2006) and similar to the 15 mg CH 4 m…”

supporting

confidence: 70%

“…A common rule of thumb is that microbial activity will approximately double with every 10 C increase in temperature (Westerman et al, 1989;Lin et al, 1987;O'Rourke, 1968). Our data would suggest this approximation is reasonably valid as the methane production rate on average increased by 2.3 times from 4 C to 15 C and 2.8 times from 15 C to 25 C, and 1.8 times from 25 C to 35 C. Most importantly, this data fit illustrates that the manure temperature can greatly influence the actual rate of methane production as compared to what is projected by this assay.…”

Section: Resultsmentioning

confidence: 99%

“…Since the majority of the methane emitted from swine deep-pit operations is thought to be associated with the stored manure (Park et al, 2006;Liu et al, 2013), focusing on the manure emissions may offer an alternative approach at estimating methane emissions from swine operations at a fraction of the cost of a whole facility monitoring program. Instead of measuring the maximum methane production capacity of the manure as in the BMP assay, measuring the actual methane production rate (MPR) directly may be a cheaper, faster alternative.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Lab-assay for estimating methane emissions from deep-pit swine manure storages

Andersen

Weelden

Trabue

et al. 2015

Journal of Environmental Management

View full text Add to dashboard Cite

Methane emission is an important tool in the evaluation of manure management systems due to the potential impact it has on global climate change. Field procedures used for estimating methane emission rates require expensive equipment, are time consuming, and highly variable between farms. The purpose of this paper is to report a simple laboratory procedure for estimating methane emission from stored manure. The test developed was termed a methane production rate (MPR) assay as it provides a short-term biogas production measurement. The MPR assay incubation time is short (3d), requires no sample preparation in terms of inoculation or dilution of manure, is incubated at room temperature, and the manure is kept stationary. These conditions allow for high throughput of samples and were chosen to replicate the conditions within deep-pit manure storages. In brief, an unaltered aliquot of manure was incubated at room temperature for a three-days to assay the current rate of methane being generated by the manure. The results from this assay predict an average methane emission factor of 12. RightsWorks produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted. b s t r a c tMethane emission is an important tool in the evaluation of manure management systems due to the potential impact it has on global climate change. Field procedures used for estimating methane emission rates require expensive equipment, are time consuming, and highly variable between farms. The purpose of this paper is to report a simple laboratory procedure for estimating methane emission from stored manure. The test developed was termed a methane production rate (MPR) assay as it provides a shortterm biogas production measurement. The MPR assay incubation time is short (3d), requires no sample preparation in terms of inoculation or dilution of manure, is incubated at room temperature, and the manure is kept stationary. These conditions allow for high throughput of samples and were chosen to replicate the conditions within deep-pit manure storages. In brief, an unaltered aliquot of manure was incubated at room temperature for a three-days to assay the current rate of methane being generated by the manure. The results from this assay predict an average methane emission factor of 12.

show abstract

“…, which is within literature values for deep-pit systems ranging from 0.24 to 63 mg CH 4 m À2 -min À1 (Park et al, 2006) and similar to the 15 mg CH 4 m…”

supporting

confidence: 70%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Lab-assay for estimating methane emissions from deep-pit swine manure storages

Andersen

Weelden

Trabue

et al. 2015

Journal of Environmental Management

View full text Add to dashboard Cite

show abstract

“…For manure tanks, it could be explained by the environmental conditions within the tanks, since during pig manure storage aerobic conditions are present on the surface, but 30 cm from the surface anaerobic conditions prevail (25). Biodigesters in this study showed persistence in only one sample.…”

Section: Discussionmentioning

confidence: 63%

“…This virus has been found by other authors in liquid pig manure and has persisted in this environment even after 30-40 days (6); these authors argue that PCV2, a DNA virus, is resistant to disinfection and is commonly excreted in pig feces and urine; for those reasons, they are considered bioindicators of environmental quality. Although in this study it was not possible to pinpoint what caused the removal of the viruses found in fresh prevalecen (25). En el caso de los biodigestores de este trabajo, se presentó persistencia en solo una de las muestras.…”

Section: Discussionmentioning

confidence: 71%

Persistence of pathogens in liquid pig manure processed in manure tanks and biodigesters

et al. 2016

Rev MVZ Córdoba

View full text Add to dashboard Cite

Objective. To evaluate the persistence of virus, bacteria, mold, yeast and parasites in liquid pig manure, processed in biodigesters and manure tanks in the central-western part of Colombia. Materials and methods. A directed observational study analyzed descriptively was carried out in three pig farms located where the manure tanks were assembled and its biodigesters were used. A sampling of liquid pig manure was taken to assess the presence of 26 pathogens at the beginning of the study and another one at the end of the process in manure tanks and biodigesters. For the manure tank, a 250 liters tank was filled with fresh pig manure and was analyzed after three days of storage. The biodigesters were of continuous flow and its effluents were analyzed, according to the specific hydraulic retention times. The diagnostic techniques were those recommended specifically for each microorganism and were carried out in certified labs by the Colombian Animal Health authority. Results. Of the 26 pathogens that were investigated, 15 appeared in the fresh pig manure used in pig manure tanks and 12 in the one used in biodigestors. In manure tanks, Porcine Circovirus type 2 (PCV2), mold, yeast, Salmonella spp., Balantidium coli and Strongylids did not persist. In biodigesters, PCV2, yeast, Strongylids, B. coli and Strongyloides spp., did not persist. Conclusions. In both manure tanks and biodigesters, a variation could be seen in pathogen persistency, indicating that they act as transformation systems of pig manure for the removal of the latter, as long as the storage times are increased if the efficiency wants to be improved. RESUMENObjetivo. Evaluar la persistencia de virus, bacterias, mohos, levaduras, y parásitos en porcinaza líquida, procesada en biodigestores y tanques estercoleros en el centro-occidente de Colombia. Materiales y Métodos. Se realizó un estudio de observación dirigida analizada descriptivamente en tres explotaciones porcinas, donde se montaron tanques estercoleros y se aprovecharon sus biodigestores. Se realizó un muestreo de porcinaza fresca para analizar la presencia de 26 patógenos al comienzo del estudio y otro al final del proceso de estercoleros y biodigestores; los muestreos se repitieron en dos momentos en las tres granjas. Para el estercolero, se llenó un tanque de 250 litrosRev.MVZ Córdoba 21(1):5237-5249, 2016. ISSN: 0122-0268 ORIGINAL 5238 REVISTA MVZ CÓRDOBA • Volumen 21(1) Enero -Abril 2016con porcinaza fresca y se analizó después de tres días de almacenamiento. Los biodigestores fueron de flujo continuo, y se analizaron sus efluentes, según los tiempos de retención hidráulica específicos. Las técnicas diagnósticas fueron las recomendadas específicamente para cada microorganismo y se ejecutaron en laboratorios certificados por la autoridad sanitaria colombiana. Resultados. De los 26 patógenos investigados se detectaron 15 en la porcinaza fresca usada en estercoleros y 12 en la utilizada en biodigestores. En tanques estercoleros Circovirus Porcino tipo 2 (PCV2), mohos, levaduras, Salmo...

show abstract

Manure methane emissions over three years at a swine farm in western Canada

2022

View full text Add to dashboard Cite

Swine manure is kept in outdoor storage facilities until it is applied to cropland.Anaerobic conditions facilitate microbial methane (CH 4 ) production at a rate that depends on temperature. Manure CH 4 emissions can be the largest contributor to the carbon footprint of pork production. Despite the importance of CH 4 , its actual emissions in cold temperate climates are highly uncertain. This study measured emissions from a single-cell earthen manure storage facility at a commercial swine farm near Brandon, Manitoba, Canada, for 3 yr. Complimentary laboratory measurements were done to assess CH 4 potential (B 0 ). The manure storage regularly received manure from the barn and was only emptied in October. In the summer, manure temperature was usually lower than the air temperature, with the manure temperature (averaged across depths) warming to between 15 and 18.5 ˚C for only 9 wk. Emissions of CH 4 were low, with the CH 4 conversion factor being between 3.0 and 11.0%, depending on the year (using the IPCC 2019 default B 0 ). Scaled by the number of swine reaching market weight (125 kg) each year, CH 4 emissions were between 250 and 902 g CH 4 animal −1 . Laboratory measurements of CH 4 production potential scaled by VS were 335 ml CH 4 g −1 VS at 37 ˚C, perhaps lower than the IPCC 2019 default value due to barley (Hordeum vulgare L.) in the ration and degradation in the under-barn pit prior to transfer outdoors. Taken together, the low manure temperatures, short warm season, and barley in the ration suggest that emissions from swine manure in cold climates like western Canada are considerably lower than previously estimated based on default factors.

show abstract

Greenhouse gas emissions from stored liquid swine manure in a cold climate

Cited by 82 publications

References 17 publications

Lab-assay for estimating methane emissions from deep-pit swine manure storages

Lab-assay for estimating methane emissions from deep-pit swine manure storages

Persistence of pathogens in liquid pig manure processed in manure tanks and biodigesters

Manure methane emissions over three years at a swine farm in western Canada

Contact Info

Product

Resources

About