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Träfflista för sökning "hsv:(TEKNIK OCH TEKNOLOGIER) hsv:(Naturresursteknik) srt2:(2000-2009)"

Search: hsv:(TEKNIK OCH TEKNOLOGIER) hsv:(Naturresursteknik) > (2000-2009)

  • Result 1-10 of 2398
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  • Kängsepp, Pille, et al. (author)
  • Hydraulic performance of a full-scale peat and ash biofilter in treatment of industrial landfill leachate
  • 2009
  • In: Waste Management & Research. - : SAGE Publications. - 0734-242X .- 1096-3669. ; 27:5, s. 512-519
  • Journal article (peer-reviewed)abstract
    • The purpose of this study was to evaluate the hydraulic performance of a full-scale on-site vertical-flow biofilter, consisting of a mixture of peat and carbon-containing ash, and a 500 m3 equalization pond prior to the filter-system. The treatment plant was constructed to clean up leachate from an industrial mono-landfill that contained shredder residues of end-of-life vehicles and white goods. With the limited storage capacity of the equalization pond, peak loading rates exceeded up to five to six times the designed daily hydraulic load limit of the biofilter system. Such relatively short overloading events did not negatively affect the purification efficiency. To provide the designed annual irrigation rate on the biofilter of 97 m3 day— 1 (or 133 mm day—1), with large seasonal variations in precipitation, a relatively large pond would be needed. Calculations showed that a storage volume of about 23 000 m3 would be sufficient for annual leachate volumes up to about 35 000 m3. A combination of sprinkler and drip irrigation with straw insulation of the latter made it possible to run the plant continuously even when the ambient air temperature was below zero for more than a month at a time. The grain size distribution of the biofilter medium was noticeably changed after 4 years of usage due to the loading of suspended solids from the leachate and decomposition of the peat, causing reduced hydraulic conductivity.
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  • Andersson, Eva Ingeborg Elisabeth, 1956, et al. (author)
  • Pulp-mill integrated biorefineries: a framework for assessing net CO2 emission consequences
  • 2004
  • In: Proceedings, AIChE 2004 Fall Annual Meeting. Nov 7-12, 2004, Austin, Texas, USA. ; , s. p 203-208, s. 203-208
  • Conference paper (other academic/artistic)abstract
    • There is currently much interest in producing biofuel-based transportation fuels. However, since biofuel is a limited renewable resource, it is important to assess whether such fuels are both produced and used as efficiently as possible. Efficient production can be achieved in the future by integrated biorefinery operations at pulp mill sites, co-producing pulp and biofuel-based energy products. This paper compares production of transportation fuel with other biorefinery options for future pulp mills. The comparison is based on net CO2 emissions, i.e. accounting for off-site consequences associated with changes in the net flows of electricity, biofuel and biofuel-based transportation fuel entering or leaving the mill. The most important conclusion is that system variables (e.g. assumptions regarding the reference fuel and engine efficiency for future transportation systems) are of decisive importance for the net CO2 emissions associated with pulp mill biorefinery operations. This paper illustrates such aspects and underlines the importance of a system perspective in process engineering research.
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  • Berndes, Göran, 1966, et al. (author)
  • Bioenergy expansion in the EU: Cost-effective climate change mitigation, employment creation and reduced dependency on imported fuels
  • 2007
  • In: Energy Policy. - : Elsevier BV. - 0301-4215. ; 35:12, s. 5965-5979
  • Journal article (peer-reviewed)abstract
    • Presently, the European Union (EU) is promoting bioenergy. The aim of this paper is to study the prospects for using domestic biomass resources in Europe and specifically to investigate whether different policy objectives underlying the promotion of bioenergy (cost-effective climate change mitigation, employment creation and reduced dependency on imported fuels) agree on which bioenergy options that should be used. We model bioenergy use from a cost-effectiveness perspective with a linear regionalized energy- andtransport-system model and perform supplementary analysis. It is found that the different policy objectives do not agree on the order of priority among bioenergy options. Maximizing climate benefits cost-effectively is in conflict with maximizing employment creation. The former perspective proposes the use of lignocellulosic biomass in the stationary sector, while the latter requires biofuels for transport based on traditional agricultural crops. Further, from a security-of-supply perspective, the appeal of a given bioenergy option depends on how oil and gas import dependencies are weighed relative to each other. Consequently, there are tradeoffs that need to be addressed by policymakers promoting the use of bioenergy. Also, the importance of bioenergy in relation to employment creation and fuel import dependency reduction needs to be further addressed.
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  • Boks, Casper, et al. (author)
  • Nordic Post-Graduate Sustainable Design and Engineering Research from a Supervisor Perspective
  • 2008
  • In: NordDesign 2008. - Tallin, Estonia. ; , s. 171-180
  • Conference paper (peer-reviewed)abstract
    • The multi- and interdisciplinary field of sustainable product innovation is rapidly expanding as an arena for scientific research. Universities in Nordic countries can be considered as an exponent of this type of research, with active research groups in, among others, Göteborg, Helsinki, Lund, Lyngby, Linköping and Trondheim. In the context of a Nordforsk funded project, seven second generation PhD supervisors from these universities, who have been active in this field for many years, discuss funding, publication, research traditions, education and supervision practices related to PhD research in this field. A number of recommendations to improve current practices are made, including the mapping currently existing differences in different academic institutions, studying the cross-over learning effects between academica and non-academic partners, and the development of ‘quality indicators’ of research in the SPI domain.
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  • Result 1-10 of 2398
Type of publication
journal article (857)
conference paper (765)
reports (385)
doctoral thesis (154)
licentiate thesis (88)
book chapter (87)
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book (23)
other publication (15)
editorial collection (12)
research review (5)
editorial proceedings (4)
review (2)
patent (1)
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Type of content
peer-reviewed (1234)
other academic/artistic (1060)
pop. science, debate, etc. (104)
Author/Editor
Gustavsson, Leif (94)
Lagerkvist, Anders (82)
Finnveden, Göran (66)
Azar, Christian, 196 ... (58)
Börjesson, Pål (56)
Carlson, Raul, 1961 (55)
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Ekvall, Tomas, 1963 (54)
Nilsson, Lars J (53)
Molander, Sverker, 1 ... (49)
Leckner, Bo G, 1936 (45)
Pålsson, Ann-Christi ... (43)
Kumpiene, Jurate (41)
Ecke, Holger (39)
Maurice, Christian (37)
Berndes, Göran, 1966 (32)
Fröling, Morgan, 196 ... (31)
Rauch, Sebastien, 19 ... (31)
Åmand, Lars-Erik, 19 ... (30)
Morrison, Greg, 1960 (29)
Andreas, Lale (28)
Flemström, Karolina, ... (28)
Mahapatra, Krushna, ... (26)
Marland, Gregg (25)
Ban, Yifang (25)
Baumann, Henrikke, 1 ... (24)
Tillman, Anne-Marie, ... (24)
Ericsson, Karin (24)
Björklund, Anna (22)
Sandberg, Thomas (22)
Ulander, Lars, 1962 (22)
Polatidis, Heracles (22)
Haralambopoulos, Dia ... (22)
Berghel, Jonas (22)
Tivander, Johan, 197 ... (22)
Svanström, Magdalena ... (21)
Åhman, Max (21)
Sandén, Björn, 1968 (21)
Johnsson, Filip, 196 ... (20)
Johansson, Bengt (20)
Thunman, Henrik, 197 ... (19)
Lidelöw, Sofia (19)
Lyngfelt, Anders, 19 ... (18)
la Cour Jansen, Jes (18)
Renström, Roger (18)
Strömberg, Dan, 1959 (17)
Khan, Jamil (17)
Hansson, Julia, 1978 (17)
Smith Jonforsen, Gar ... (17)
Malmqvist, Tove (17)
Erlandsson, Markus, ... (17)
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University
Chalmers University of Technology (917)
Royal Institute of Technology (509)
Lund University (254)
Luleå University of Technology (199)
Mid Sweden University (179)
Karlstad University (114)
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Linnaeus University (112)
University of Gothenburg (76)
Uppsala University (64)
University of Gävle (63)
Linköping University (56)
Mälardalen University (38)
Umeå University (22)
Halmstad University (19)
Swedish University of Agricultural Sciences (14)
Stockholm University (12)
RISE (11)
Örebro University (10)
Södertörn University (10)
Högskolan Dalarna (7)
University of Borås (5)
Swedish National Defence College (3)
VTI - The Swedish National Road and Transport Research Institute (3)
Kristianstad University College (2)
University West (2)
Jönköping University (2)
Stockholm School of Economics (1)
Swedish National Heritage Board (1)
Blekinge Institute of Technology (1)
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Language
English (2054)
Swedish (320)
German (8)
Spanish (3)
Greek, Modern (3)
Russian (2)
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Chinese (2)
Norwegian (1)
Italian (1)
Finnish (1)
Polish (1)
Portuguese (1)
Serbian (1)
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Research subject (UKÄ/SCB)
Engineering and Technology (2398)
Natural sciences (203)
Social Sciences (170)
Agricultural Sciences (38)
Humanities (9)
Medical and Health Sciences (5)

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