3.2.2 Comparison of different urban water systems in Hammarby Sjöstad
In Hammarby Sjöstad, different sewage systems have been studied (Hellström, 2005). The systems
are:
1) Combined system with sludge handling using supercritical water oxidation (SCWO) and sludge
fractionation
2) Blackwater system with urine separation and kitchen waste mills
3) Local treatment plant with nutrient recycling.