On July 13-16, 2009, a delegation from Milan visited Stockholm, Sweden, to learn more about the concept of sustainable society operated by SymbioCity and to meet with Swedish companies involved in environmental technology research and development.
The agenda included a visit to the Volvo Demo Center, where the newest vehicles with renewable fuels were displayed. Furthermore, Envac discussed the integrated environmental strategy implemented at "Hammarby Sjöstad" and the vacuum waste transport system installed by the company.
The "Hammarby model" has set a new standard for future housing development. It has been presented worldwide as a model for other cities.
In the 90's, plans were made to build Hammarby Sjöstad in a former brownfield area of wharves and docks. The first construction phases were finalized in 2000. There will be 11,000 apartments, 25,000 inhabitants and 10,000 workplaces by 2015. The district is now famous for its integrated planning approach, where every aspect has been developed with the whole in mind.
- Automatic underground waste collection systems
- District heating and cooling fuelled partly by local waste collection and by heat exchangers in water treatment
- Solar-powered hot water and electricity
- Biogas from household sewage water and waste
- Collection and filtration of runoff water
- Super-efficient buildings, triple-glass windows, green roofs, etc.
The results are truly fantastic. A general assessment indicates a doubling of the total environmental performance.
- 40% less environmental stress
- 50% less eutrophication
- 45% less ground-level ozone
- 40% less water consumption