Barcelona’s sustainable water in 2050 By: Alessandro Meluni Adam Roestenburg Linda Blomqvist

1. Barcelona’s sustainable water in 2050 • By: • Alessandro Meluni • Adam Roestenburg • Linda Blomqvist • Àlex Verdú • Galdric Ruiz • Gemma Tejedor

2. Self sufficient Ecology • Renewable system • Health and security • Cosmovision

3. (Base) • Needs and confidence • Remember the limitations for the use of water in the Mediterranean • Needs • Economy Cosmovision

4. (Branch) • Must not interrupt the cycle of water • Energy consumption • Efficiency Renewable system

5. Independent and stable. • Running on current water system. • No help from outside. • Local • Stability Self sufficient

6. Doesn’t affect the ecosystem • And maintain a positive impact • Respect for nature Ecology

7. Good quality of water • security Health and security

8. Effects and uncertainties • Less rain fall • Less energy availability • Infrequent raining • Increase of population • Increase of demand per capita • Profit to non profit • Conflict • Increasing temperatures • Increasing energy demand • Inflation • Confidence in drinking water quality • Stricter water regulations Impact 10 High 8 11 3 2 9 12 1 5 4 7 6 Low Low High Predictability

9. Less energy availability + Extreme positive value is that there will be more efficient electrical products • extreme negative value is that energy will be connected to the water supply. • Confidence in drinking water quality + extreme positive value is that people will drink more tap water • extreme negative value is that will be no drinking of tap water Most critical ones

10. Different scenarios 1 Water stairs and containers. 2 communities sharing water 3 decentralized filtering /purification systems 4 limits to grow

11. 1 Water stairs and containers. • Drinking to douche storage • Douche to washing storage • Washing to toilet storage • Toilet to filtering system and storage. • Storage tank on the roof for rain water collection. • A service center will maintain the quality of the water via network connection • On the roof there are solar collectors for heat and PV installations electricity

12. 2 communities sharing water • Take a shower with your friends showering together in one shower • Toilet services • Collecting the residue from the toiler and make biogas • Only water for drinking and cooking

13. 3 decentralized filtering /purification systems • City will be divided into smaller zone that have micro filtering system • Homes will be connected in small groups to the system. • The home used water will flow to the industrial zones. • The factory water will be filtered and pumped back up stream of the river.

14. 4 limits to grow • People will have legislations for the use of water. Every drop will be played for. • The used and filtered water will be stored in sea in a large storage container • Then when needed it will be pumped upstream of to the filtering /purification plant • Computer chips will check the quality of the water and alarm the control agencies

15. Different scenarios + energy 3 2 + Confidence 4 1

16. Independent provision and a secure supply of clean water with a minimum energy and cash input. Business idea

17. Strategy A = Holland pipeline Strategy B = Safe the rain before pollution Strategy C = The sea storage Strategy D = Increase of desalination plants with RWE Strategy E = Maximum re-use of water Strategy F = Build separate grey and rain water grid for industry.