Potential for anaerobic digestion of dairy farm effluent in New Zealand

Authors

  • A.Milet J.S. Rowarth
  • F.G. Scrimgeour

DOI:

https://doi.org/10.33584/jnzg.2015.77.486

Abstract

Efficient effluent management allows capturing of nutrient benefits while reducing potential environmental impact. In New Zealand research has focussed on ponds and land disposal, whereas digesters are being implemented overseas. When biogas produced by anaerobic digestion is collected, it can be used to produce heat and electricity; this has been done in some countries trying to increase their renewable energy profile (e.g., France), but the cost is not always offset by the benefits. Analysis of policies concerning power supply in France and New Zealand revealed very large differences between the two countries, which, in combination with differences in population density, availability of co-digestion products and dairy shed effluent type, means that the establishment of biodigesters is unlikely in New Zealand unless there are changes in policy to encourage greater renewable energy via implementation assistance. Keywords: Biodigester, co-digestion, energy

Downloads

Download data is not yet available.

Downloads

Published

2015-01-01

How to Cite

Rowarth, A. J., & Scrimgeour, F. (2015). Potential for anaerobic digestion of dairy farm effluent in New Zealand. Journal of New Zealand Grasslands, 77, 71–76. https://doi.org/10.33584/jnzg.2015.77.486

Issue

Section

Past volumes