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Energies 2009, 2(2), 226-242; doi:10.3390/en20200226
Review

Closing the Global Energy and Nutrient Cycles through Application of Biogas Residue to Agricultural Land – Potential Benefits and Drawback

Department of Microbiology, Swedish University of Agricultural Sciences, Box 7025, 75007 Uppsala, Sweden
Received: 3 March 2009 / Revised: 30 March 2009 / Accepted: 9 April 2009 / Published: 16 April 2009
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Abstract

Anaerobic digestion is an optimal way to treat organic waste matter, resulting in biogas and residue. Utilization of the residue as a crop fertilizer should enhance crop yield and soil fertility, promoting closure of the global energy and nutrient cycles. Consequently, the requirement for production of inorganic fertilizers will decrease, in turn saving significant amounts of energy, reducing greenhouse gas emissions to the atmosphere, and indirectly leading to global economic benefits. However, application of this residue to agricultural land requires careful monitoring to detect amendments in soil quality at the early stages.
Keywords: Biogas residue; fertilization; agriculture Biogas residue; fertilization; agriculture
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Arthurson, V. Closing the Global Energy and Nutrient Cycles through Application of Biogas Residue to Agricultural Land – Potential Benefits and Drawback. Energies 2009, 2, 226-242.

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