Diverting toilet systems - quality of collected urine mixture compared to other organic fertilizers

Storstrnm County and A & B Backlund ApS are cooperating in four wastewater projectsrunning since 1998 concerning source control, diverting toilet technology and analysis ofcollected human urine mixture and composted human faeces. Results from one of the projectsare presented in this paper. A & B Backlund ApS is working with further four national andinternational projects and are planning for further projects. The projects are carried out in anAction Plan administrated by the Danish Environmental Protection Agency (EPA). DanishEPA is not responsibel for the conclusions or expressed views in the reports.The collected user experiences in the Danish projects show that the diverting technology areaccepted in a housing area, is running very well in a public place and are even highlyappreciated in allotment gardens (even if further technical improvement should be made).This paper presents contents of nutrients, heavy metals, organic compounds andmicroorganisms found in urine mixture compared to findings in organic fertilizers used indanish agriculture. The analysed urine mixture was of high quality.No-mixing toilets, diverting toilets, separation toilets, composting toilets, biological toilets,waterless urinals, wastewater treatment, ecological engineering, ecological sanitation, humanurine, human faeces, nutrients, heavy metals, pathogens, compost, sludge, manure,anaerobicly processed biomass