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Department of Biological and Chemical Engineering

Publications by Energy Conversion Technology

Are you looking for publications by Section of Energy Conversion Technology? On this page you can find all the publications made by the Section of Process & Materials Engineering - Department of Biological & Chemical Engineering, Aarhus University.

Below you can find a list of all the publications, their publishing date, their author(s), and titles. The list can be sorted by date, author, and title:

List of Publications

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Hjelmar, O., Christensen, H. H. & Sommer, S. G. (1983). Flyveaske fra kulfyrede kraftværker. Stads og Havneingenioeren, 8-8.

Sommer, S. G. (1982). Plantenæringsstoffer - En kilde til vandforurening. Jordbrug, 18, 349-353.

Sommer, S. G. (1985). Ammoniakfordampning i landbruget - Økonomi og miljø. Jordbrug, 22, 611-614.

Sommer, S. G. (1991). Bestemmelse af ammonium i gylle: Processer ved ammoniakfordampning fra ammonium-carbonatsystemer samt måling heraf.

Sommer, S. G. (1992). Ammoniakfordampning fra kvæg- og svinegylle. Statens Planteavlsforsøg - Årsberetning, 1991, 34-37.

Sommer, S. G. (1994). Ammoniakfordampning fra lagret kvæg- og svinegylle. Grøn viden - Landbrug, 135, 1-6.

Sommer, S. G. (1995). Reduktion i ammoniakfordampning fra lagret afgasset gylle ved overdækning med lecasten eller flydelag.

Sommer, S. G. & Christensen, B. T. (1989). Fordampning af ammoniak fra svinegylle udbragt på jordoverfladen. Planteavl, 93, 307-321.

Sommer, S. G. & Christensen, B. T. (1990). Ammoniakfordampning fra fast husdyrgødning samt ubehandlet afgasset og filtreret gylle efter overfladeudbringning, nedfældning, nedharvning og vanding. Planteavl, 94, 407-418.

Schjørring, J. K., Sommer, S. G., Ferm, F. & Nielsen, S. B. (1990). Bestemmelse af NH3-fordampning med passive fluxmålere: Metodeafprøvning og verifikation.

Sommer, S. G. (1985). Kvælstofkredsløbet via atmosfæren.

Sommer, S. G. (1986). Ammoniak- og ammoniumafsætning i stigende afstand fra en punktkilde.

Sommer, S. G. (1988). Udvaskning af kvælstof, sulfat og klorid fra 5 forskellige biotoper i Strødam. Center for Jordøkologi, København, Intern Rapport.

Sommer, S. G. (1989). Udspredning af gylle: Fordampning af ammoniak og fordeling af udbragt gylle. Planteavl, 93, 323-329.

Sommer, S. G. (1989). Fordampning af ammoniak. Husdyrgødning og dens anvendelse. Statens Planteavlsforsøg, København, 40-46.

Sommer, S. G. (1990). Ammoniakfordampning fra svinegylle på nykalket jord. Grøn viden - Landbrug, 51, 1-4.

Sommer, S. G. (1990). Ammoniakafsætning omkring et landbrug med malkekvæg.

Sommer, S. G. (1990). NH3-fordampning fra gyllebeholdere.

Sommer, S. G., Jensen, E. S. & Schjørring, J. K. (1992). Leaf absorption of gaseous ammonia after application of pig slurry on sand between rows of winter wheat.

Sommer, S. G. (1992). Ammonia volatilization from slurry during storage and in the field. In Nitrogen and Agriculture. Proc. int. Workshop Baltic Sea and the Environment, 1991, Germany, 45 (pp. 17-27)

Sommer, S. G. & Thomsen, I. K. (1993). Loss of Nitrogen from Pig Slurry due to Ammonia Volatilization and Nitrate Leaching. In Nitrogen flow in pig production and environmental consequences. (Verstegen, M.W.A., Hartog, L.A., den Kempen, G.J.M. & Metz, J.H.M. (Eds.)). Pudoc Scientific Publishers, Wageningen, The Netherlands (pp. 353-367)

Sommer, S. G. & Hutchings, N. (1997). Components of ammonia volatilization from agriculture with grazing livestock. In Gaseous nitrogen emissions from grasslands (Jarvis, S.C. & Pain, B.F. (Eds.)) CAB International, Wallingford, UK (pp. 79-95)

Christensen, B. T. & Sommer, S. G. (1989). Fordampning af ammoniak fra udbragt gødning: Metode og ammoniaktab fra urea og rea-ammonium nitrat. Tidsskrift for Planteavl, 93, 177-190.

Hansen, B. & Sommer, S. G. (1987). Tilførsel af næringsstoffer til vandløb. Miljøstyrelsen. Miljøprojekt

Sommer, S. G. (1997). Ammonia volatilization from farm tanks containing anaerobically digested animal slurry. Atmospheric Environment, 31, 863-868.

Ferm, M., Schjørring, J. K., Sommer, S. G. & Nielsen, S. B. (1991). Field investigation of methods to measure ammonia volatilization. In Odour and ammonia emissions from livestock farming (Nielsen, V.C., Voorburg, J. H. & L'Hermite, P. (Eds.)). Elsevier Applied Science, London, New Yor (pp. 148-155)

Schjørring, J. K., Ferm, M. & Sommer, S. G. (1992). Measurement of NH3 emission and deposition by the gradient method: Can passive flux sampers be used to obtain the net exchange of NH3 through periods of several days with varying wind speed and atmospheric NH3 concentration.

Schjørring, J. K., Sommer, S. G., Ferm, M. & Nielsen, S. B. (1991). Determination of ammonia emission by use of passive flux samplers.

Sommer, S. G. (1991). Ammonia volatilization from slurry tanks with different surface coverings.

Sommer, S. G. (1991). Deposition of ammonia near a dairy farm.

Sommer, S. G. (1991). NH3-Volatilization from fertilizers and animal manure.

Sommer, S. G. & Christensen, B. T. (1991). Effect of dry matter content on ammonia loss from surface applied cattle slurry. In Odour and ammonia emissions from livestock farming (Nielsen, V.C., Voorburg, J. H. & L'Hermite, P. (Eds.)). Elsevier Applied Science, London, New Yor (pp. 141-147)

Sommer, S. G., Olesen, J. E. & Christensen, B. T. (1991). Effects of temperature, wind speed and air humidity on ammonia volatilization from surface applied cattle slurry. Nongye Kexue Yanjiu, 117, 91-100.

Sommer, S. G., Kjellerup, V. K. & Kristjansen, O. (1992). Determination of ammonium nitrogen in pig and cattle slurry: Sample preparation and analysis. Acta Agriculturae Scandinavica, Section B - Soil & Plant Science, 42, 146-151.

Sommer, S. G. & Christensen, B. T. (1992). Ammonia volatilization after injection of anhydrous ammonia into arable soils of different moisture levels. Plant and Soil, 142(1), 143-146.

Sommer, S. G., Christensen, B. T., Nielsen, N. E. & Schjørring, J. K. (1993). Ammonia volatilization during storage of cattle and pig slurry: Effect of surface cover. Journal of Agricultural Science, 121, 63-71.

Sommer, S. G., Jensen, E. S. & Schjørring, J. K. (1993). Leaf absorption of atmospheric ammonia emitted from pig slurry applied beneath the canopy of winter wheat. Acta Agriculturae Scandinavica, Section B - Soil & Plant Science, 43, 21-24.

Sommer, S. G., Hutchings, N., Kyllingsbæk, A. & Thomsen, I. (1996). Historical trends in N circulation on Danish livestock farms and the related legislation. Ingénieries: Eau-Agriculture-Territoires, Special Issue, 23-30.

Olesen, J. E. & Sommer, S. G. (1993). Modelling effects of wind speed and surface cover on ammonia volatilization from stored pig slurry. Atmospheric Environment, (27A), 2567-2574.

Schjørring, J. K., Sommer, S. G. & Ferm, M. (1992). A simple passive sampler for measuring ammonia emission in the field. Water, Air and Soil Pollution, 62, 13-24.

Sommer, S. G. (1988). A simple biomonitor for measuring ammonia deposition in rural areas. Biology and Fertility of Soils, 6, 61-64.

Sommer, S. G. & Jensen, E. S. (1991). Foliar absorption of atmospheric ammonia by ryegrass in the field. Journal of Environmental Quality, 20, 153-156.

Sommer, S. G. & Olesen, J. E. (1991). Effects of dry matter content and temperature on ammonia loss from surface-applied cattle slurry. Journal of Environmental Quality, 20, 679-683.

Møller, H. B., Hansen, M. N. & Sommer, S. G. (2002). Hundrede procents udnyttelse af husdyrgødningen. Danske Maelkeproducenter, 3, 30-32.

Sommer, S. G. (2002). ALFAM - Et beslutningsstøtteværktøj til beregning af ammoniakfordampning. In Danmarks JordbrugsForskning og Landbrugets Rådgivningscenter konference: Teknik i Landbruget 2002, Scandinavian Congress Center, Aarhus, 21.-22.3.02. Bila (pp. 58-59)

Sommer, S. G., Møller, H. B. & Petersen, S. O. (2002). Reduction in methane and nitrous oxide emission from animal slurry through anaerobic digestion. In Proc. 3rd int. symp. on Non-CO2 Greenhouse Gases: Scientific Understanding, Control Options and Policy Aspects. Millpress Science Publishers Delft, Maastricht, The Netherlands. ISBN 90-77017-70-4 (pp. 475-480)

Sommer, S. G. & Hutchings, N. (2002). ALFAM vil kunne mindske ammoniakfordampning fra markerne. Jordbrugsforskning, 1, 3-3.

Oenema, O., Bannink, A., Sommer, S. G. & Velthof, G. L. (2001). Gaseous Nitrogen Emissions from Livestock Farming Systems. In Nitrogen in the Environment: Sources, Problems and Management. Follett, R.F. & Hatfield, J.L., (Eds.). Elsevier Science B.V., Chapter (Vol. 10, pp. 255-289)

Sommer, S. G., Hutchings, N., Carton, O. T., Smith, K., Søgaard, H. T., Nicholson, F. A., Huijsmans, J., Bussink, W., Misselbrook, T., Pain, B., Genermont, S., Menzi, H., Morken, J., Verwijs, B., Rodhe, L. & Döhler, H. (2001). Ammonia losses from field applied animal manure. Aarhus University.

Rattanarajcharkul, R., Rucha, W., Sommer, S. G. & Menzi, H. (2001). Area-wide integration of specialised livestock and crop production in Eastern Thailand. In Proc. 9th int. workshop of the network general theme: 'Technology Transfer", RAMIRAN 2000, Ital (pp. 295-300)

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