Abstract

Life cycle assessment methodology was used to compare conventional wheat production with a scenario where source-separated human urine replaced mineral fertilisers. A change-orientated perspective was used, including differences in capital goods between the scenarios. An optimal fertilising strategy regarding application time, technique and substitution of mineral fertiliser was demonstrated to be important for energy use, global warming and acidification. For reducing the energy use, a well designed collection system for urine also proved important, while recovery of the urine was essential for reducing eutrophication. Applying an agricultural perspective when evaluating the system highlighted potential conflicts regarding nutrient utilisation. (c) 2005 Elsevier Ltd. All rights reserved

Keywords

Environmental systems analysis; Urine-separation; Agriculture; LCA; Wastewater systems

Published in

Journal of Cleaner Production
2007, Volume: 15, number: 1, pages: 52-62
Publisher: ELSEVIER SCI LTD

SLU Authors

• Tidåker, Pernilla

  • Department of Energy and Technology, Swedish University of Agricultural Sciences
    

• Jönsson, Håkan

  • Department of Energy and Technology, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Agricultural Science
Fish and Aquacultural Science
Environmental Sciences related to Agriculture and Land-use


Publication identifier

DOI: https://doi.org/10.1016/j.jclepro.2005.04.019

Permanent link to this page (URI)

https://res.slu.se/id/publ/9285