Publications

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Jensen, L. S. & Sommer, S. G. (2013). Manure organic matter - Characteristics and microbial transformations: Chapter 5. I S. Gjedde Sommer, M. Lykkegaard Christensen, T. Schmidt & L. S. Jensen (red.), Animal Manure Recycling: Treatment and Management (s. 67-90). John Wiley & Sons, Ltd. https://doi.org/10.1002/9781118676677.ch5

Jin Mi , T., Ward, A. J., Pedersen, L., Løkke, M. M., Qu, H. & Sommer, S. G. (2013). Near Infrared Reflectance Spectroscopy (NIRS) for rapid determination of Biochemical Methane Potential of plant biomass. Applied Energy, 116, 52-57. https://doi.org/10.1016/j.apenergy.2013.11.006

Sommer, S. G. (2013). Ammonia volatilisation from livestock slurries and mineral fertilisers. Syddansk Universitetsforlag.

Sommer, S. G. (2013). Ammonia volatilization from livestock slurries and mineral fertilizers.

Sommer, S. G. (2013). Animal manure - From Waste to raw materials and goods. I S. G. Sommer, M. L. Christensen, T. Schmidt & L. S. Jensen (red.), Animal Manure Recycling - Treatment and Management (1 udg., Bind 1, s. 1-4). John Wiley & Sons Ltd.

Sommer, S. G. (2013). Animal production and animal manure management. I S. G. Sommer, M. L. Christensen, T. Schmidt & L. S. Jensen (red.), Animal manure recycling - Treatment and management (1 udg., Bind 1, s. 5-23). John Wiley & Sons Ltd.

Sommer, S. G. (2013). Biogas from beet pulp and source separated household waste- Energy production and Greenhouse gas Reduction. http://dce-conference.au.dk/fileadmin/dce-conference.au.dk/Abstract_Book_Final.pdf

Sommer, S. G. (2013). Decision Support for the Construction of Farm-Scale Biogas Digesters in Developing Countries with Cold Seasons. Energies, 6(10), 5314-5332. https://doi.org/10.3390/en6105314

Sommer, S. G. (2013). Eco-friendly and efficient management of solid manure: (Chapter 8). . I A. Aland & T. Banhazi (red.), Livestock housing Wageningen Academic Publishers. https://doi.org/10.3920/978-90-8686-771-4

Sommer, S. G. (2013). Ecofriendly, hygienic and efficient management of solid animal manure. I Livestock housing: Modern management to ensure optimal health and welfare of farm animals (s. 161-182). Wageningen Academic Publicers. https://doi.org/10.3920/978-90-8686-771-4

Sommer, S. G. & Feilberg, A. (2013). Gaseous Emissions of Ammonia and Malodorous Gases. I S. G. Sommer, M. L. Christensen, T. Schmidt & L. S. Jensen (red.), Animal Manure Recycling: Treatment and Management (s. 131-151). John Wiley and Sons, Ltd..

Sommer, S. G., Clough, T. J., Chadwick, D. & Petersen, S. O. (2013). Greenhouse gas emissions from animal manures and technologies for their reduction. I Animal Manure Recycling: Treatment and Management (s. 177-194)

Sommer, S. G. (2013). Manure characterisation and inorganic chemistry. I S. G. Sommer, M. L. Christensen, T. Schmidt & L. S. Jensen (red.), Animal Manure – Treatment and Management (1 udg., Bind 1, s. 41-63). John Wiley & Sons Ltd.

Sommer, S. G. (2013). Near Infrared Reflectance Spectroscopy for rapid determination of Biochemical Methane Potential of plant biomass. I ICNIRS 2013 - 16th International Conference on Near Infrared Spectroscopy, La Grande-Motte ICNIRS.

Sommer, S. G. (2013). Online measurement of methane potentials and anaerobic degradability in biogas production and green house gas emission. I 2013 Korean-Danish Strategic Research Cooperation Workshop, Seoul South Korea Korean-Danish Strategic Research Cooperation.

Sommer, S. G. (2013). Rapid determination of Biochemical Methane Potential (BMP) in anaerobic digestion using Near Infrared Reflectance Spectroscopy (NIRS). I EU-Korea Conference on Science and Technology (EKC), Brighton EKC.

Sommer, S. G., Oenema, O., Matsunaka, T. & Jensen, L. S. (2013). Regulation of animal manure management. Chapter 3 . I S. Gjedde Sommer, M. L. Christensen, T. Schmidt & L. S. Jensen (red.), Animal Manure – Treatment and Management (First Edition udg.). John Wiley & Sons Ltd. https://doi.org/10.1002/9781118676677;jsessionid=44AC77B289944BB81266A638B92599A5.f03t04

Sommer, S. G. (2013). Technologies and logistics for handling, transport and distribution of animal manures. I S. G. Sommer, M. L. Christensen, T. Schmidt & L. S. Jensen (red.), Animal Manure – Treatment and Management (1 udg., Bind 1, s. 211-234). John Wiley & Sons Ltd.

Sommer, S. G. (2013). Validation and Recommendation of Methods to Measure Biogas Production Potential of Animal Manure. Asian-Australasian Journal of Animal Sciences, 26(6), 864-873. https://doi.org/10.5713%2Fajas.2012.12623

Triolo, J. L., Ward, A. J., Pedersen, L. & Sommer, S. G. (2013). Characteristics of Animal Slurry as a Key Biomass for Biogas Production in Denmark. I M. D. Matovic (red.), Biomass Now - Sustainable Growth and Use InTech - Open Access Publisher. https://doi.org/10.5772/54424

Wnetrzak, R., Kwapinski, W., Peters, K., Sommer, S. G., Jensen, L. S. & Leahy, J. J. (2013). The influence of the pig manure separation system on the energy production potentials. Bioresource Technology, 136, 502-508. https://doi.org/10.1016/j.biortech.2013.03.001

Hafner, S. D., Montes, F. & Rotz, C. A. (2012). A mass transfer model for VOC emission from silage. Atmospheric Environment, 54, 134-140. https://doi.org/10.1016/j.atmosenv.2012.03.005

Hafner, S. D., Meisinger, J. J., Mulbry, W. & Ingram, S. K. (2012). A pH-based method for measuring gaseous ammonia. Nutrient Cycling in Agroecosystems, 92(2), 195-205. https://doi.org/10.1007/s10705-012-9481-5

Hansen, B. I., ten Hoeve, M. & Sommer, S. G. (2012). Regulering og tilskud styrer udbredelsen af nye teknologier. I Robust og bæredygtig bioenergi (s. 6-7)

Rüdiger, M., Karnøe, P., Sommer, S. G. & Overgaard, K. (2012). Fra fossilt brændsel til vedvarende energi. I K. Overgaard, S. Gjedde Sommer, K. B. Christensen, D. L. Damkjær, L. K. Glenstrup, S. Hohn, M. J. Larsen & M. Machholm (red.), BIOTEK 2: Bioenergi, Lægemidler, Fødevareingredienser, Drikkevand. (s. 6-45). L&R Uddannelse.

Sommer, S. G. (2012). Banebrydende dansk bioteknologi. I S. D. Emkjær (red.), BIOTEK 2 - Anvendt bioteknologi (s. 92-121). Lindhardt & Ringhof.

Sommer, S. G. (2012). Biochemical methane potential and anaerobic biodegradability of non-herbaceous and herbaceous phytomass in biogas production. Bioresource Technology, 125(226-232).

Sommer, S. G. (2012). Biotechnology for efficient and environmentally friendly manure management. I S.-N. Lee & R. G. Mangubat (red.), Sustainable Resource Managment of Livestock and Poultry Waste for Asian Small-scale Farmers (s. 1-11)

Sommer, S. G. (2012). Gær producerer insulin for milliarder. I S. D. Emkjær (red.), BIOTEK 2 – Anvendt bioteknologi (s. 122-147). Lindhardt & Ringhof.

Sommer, S. G. (2012). Gaseous emissions during the management of solid manures. Agronomy for Sustainable Development, 8, 67-106. Artikel 8.

Sommer, S. G. (2012). Indicators of physical properties and plant nutrient content of animal slurry and separated slurry. Biological Engineering Transactions, 5, 123-135.

Sommer, S. G. (2012). Management model for assessment of nitrogen flow from feed to pig manure after storage in Vietnam. Environmental Technology, 33(6), 725-731. https://doi.org/10.1080/09593330.2011.592223

Sommer, S. G. (2012). Manure management practices on biogas and non-biogas pig farms in developing countries - using livestock farms in Vietnam as an example. Journal of Cleaner Production, 27, 64-71. https://doi.org/10.1016/j.jclepro.2012.01.006

Sommer, S. G. (2012). Methane productivity and algorithms for psychrophilic simple biogas digester. I Fourth International Symposium On Energy From Biomass and Waste, San Servolo, Venice (Italy)

Sommer, S. G. (2012). New technologies to recycle phosphor. Abstract fra Nitrate conferne, København, Danmark.

Sommer, S. G. (2012). Potential of plant waste for biomethane production: Characteristic biomethane production potential and anaearobic digestibility. I Fourth International Symposium On Energy From Biomass and Waste, San Servolo, Venice (Italy)

Sommer, S. G. (2012). Proton activity - the missing link in predicting ammonia and odour emission from manure (Eds. Aubree R. et al.). Afhandling præsenteret på International Symposium on Emission of Gas and Dust from Livestock (EmiLi), June 10-13, 2012, Saint-Malo, France, Saint Malo, Frankrig.

Sommer, S. G. & Morthorst, P. E. (2012). Robust og bæredygtig bioenergi. I T. Skøtt (red.), Robust og bæredygtig bioenergi: Biomasse i fremtidens danske energisystem (s. 4-5). BioPress.

Sommer, S. G. (2012). Validation and recommendation of methods to measure biogas production potential. I The 15th AAAP Animal Science Congress, Thailand AAAP.

Webb, J., Sommer, S. G., Kupper, T., Groenestein, K., Hutchings, N. J., Eurich-Menden, B., Rodhe, L., Misselbrook, T. H. & Amon, B. (2012). Emissions of ammonia, nitrous oxide and methane during the management of solid manures. Sustainable Agriculture Reviews, 8, 67-107. https://doi.org/10.1007/978-94-007-1905-7_4

Petersen, S. O. & Sommer, S. G. (2011). Ammonia and nitrous oxide interactions: Roles of manure organic matter management. Animal Feed Science and Technology, 166-167, 503-513. https://doi.org/10.1016/j.anifeedsci.2011.04.077

Quaye, A. K., Volk, T. A., Hafner, S., Leopold, D. J. & Schirmer, C. (2011). Impacts of paper sludge and manure on soil and biomass production of willow. Biomass and Bioenergy, 35(7), 2796-2806. https://doi.org/10.1016/j.biombioe.2011.03.008

Rotz, C. A. & Hafner, S. D. (2011). Whole farm impact of anaerobic digestion and biogas use on a New York dairy farm. I American Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011 (Bind 6, s. 5220-5231). American Society of Agricultural and Biological Engineers.

Sommer, S. G. (2011). A review of the biogas industry in China. Energy Policy, 39(10), 6073-6081.

Sommer, S. G. (2011). Effect of incineration temperature on phosphorus availability in bio-ash from manure. Environmental Technology, 32(6), 633-638. https://doi.org/10.1080/09593330.2010.509355

Sommer, S. G. (2011). Influence of lignocellulose on biochemical methane potential and biodegradability for animal manure and energy crop. Abstract fra I. International Conference on Biogas Microbiology, Leipzig, Tyskland.

Sommer, S. G. (2011). Manure management: implications for greenhouse gas emissions. Animal Feed Science and Technology, 166-167(23 June), 514-531. https://doi.org/10.1016/j.anifeedsci.2011.04.036

Sommer, S. G. (2011). Nitrogen turnover and loss during storage of slurry and composting of solid manure under typical Vietnamese farming conditions. Journal of Agricultural Science, 149, 285–296. https://doi.org/10.1017/S0021859610000699

Sommer, S. G. (2011). Physical properties, fuel characteristics and P-fertilizer production related to animal slurry and products from separation of animal slurry. Abstract fra njf seminar 443, Falköping, Sverige.

Sommer, S. G. (2011). Solid-Liquid Separation of Animal Slurry in Theory and Practise: A Review. I E. Lichtfouse, M. Hamelin, M. Navarrete & P. Debaeke (red.), Sustainable Agriculture (1 udg., Bind 2, s. 953-986). Springer.

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Revideret 16.01.2025

Sasha D. Hafner