Vinnerås, Björn
- Institutionen för energi och teknik, Sveriges lantbruksuniversitet
Sammanfattning
The purpose of this study was to collect the nutrients contained in human urine (nitrogen, phosphorous and potassium) by compostint with grass leaves and fruit peel and to increase the compost activity by decreasing the C:N ratio. Compost temperature was used as an indicator of compost activity. The test demonstrated the importance of the structure in the material for good aeration of the compost, as ground raw material maintained lower temperatures than non-ground. Adding urine increased the nutrient content of the compost. Some of the nitrogen was lost as ammonia emissions but there was still more nitrogen and presumably more other macro- and micronutrients in the compost after urine addition. Addition of approximately 10-15% urine to the wet weight of the compost material increased the compost reaction and rendered a higher top temperature of the treatment. Thus, adding urine to the compost process can render better sanitised and stable mature compost in a shorter time period compared to when no urine is added
Nyckelord
Composting; fertiliser; human urine; plants; nutrients; temperature
Publicerad i
Titel: Ecosan - closing the loop proceedings of the 2nd international symposium, 7th - 11th april 2003, Lübeck, Germany
Utgivare: The 2nd International Symposium on Ecological Sanitation, Incorporating the 1st IWA Specialist Group Conference on Sustainable Sanitation
Konferens
The 2nd International Symposium on Ecological Sanitation, Incorporating the 1st IWA Specialist Group Conference on Sustainable Sanitation
SLU författare
UKÄ forskningsämne
Miljö- och naturvårdsvetenskap
Publikationens identifierare
- ISBN: 3-00-012791-7
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/4215