Urine-separation and dry composting toilet trial – agricultural use of residues

This note was reviewed in October 2018 and retained for legacy.

This paper and its companion paper summarise reports published by the consulting firm GHD in 2003 and 2009 and in particular summarises final results of a two year trial of 6 urine-separating dry composting toilets and 2 waterless urinals at a new secondary school in Victoria.  This paper reports on an agricultural trial in which the collected urine was used as fertiliser. This trial indicated that application of urine to a growing crop of canola and growing pasture in spring is feasible. The results were insufficient to conclude that the urine is clearly as effective as conventional fertilisers, but did indicate no detriment to the crop or pasture, and similar performance to chemical fertiliser application. The project in general is discussed in the companion papers: Urine-separation and dry composting toilet trial – demonstration in a secondary school.

note summary
  1. Introduction
  2. Analysis of residues
  3. Agricultural trial
  4. Conclusion