Environmental Project No. 1329, 2010

Life Cycle Assessment of Biogas from Separated slurry


The environmental aspects of biogas production based on pre-treated slurry have been investigated in a life cycle perspective. The pre-treatment consists of concentrating the slurry using a separation technology. Significant environmental benefits, compared to the status quo slurry management, can be obtained for slurry, especially regarding reductions of the contributions to global warming, but the results depend to a large extent on the efficiency of the separation technology. Adding separation after the biogas plant can contribute to a more efficient management of the phosphorus.

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