1. Waste Water Treatment Denis MOTA

2. Overview Waste water Treatment Treatment in LYON  Pierre Bénite

3. What is Waste Water? 3 types of waste water:  From residences  From Industrie  Rainwater

4. Processes of Waste Water Treatment: Example in Columbia The treatment takes place in 3 Stages: The first removes 40-60% of the solids The second 90% of the pollution Sludge: treatment and disposal

5. Processes of Waste Water Treatment: Example in Columbia

6. Primary Treatment Sanitary sewers

7. Primary Treatment Bar Screens

8. Primary Treatment Two Primary Settling Bassins

9. Secondary Treatment Two Aeration basins

10. Secondary Treatment The Final Settling Bassins

11. Secondary Treatment The Final Effluent

12. Sludge Treatment Hydrocyclone Grit Separator Sludge Thickener Anaerobic Digest

13. Waste Water Treatment in Lyon

14. 8 Sites of Waste Water Treatment Capacity for 1 300 000 inhabitants → Not enough in the Futur?

15. New Waste Water Treatment Plant Reconstruction of the site of Pierre Bénite 450 000 eq-hab to 1 000 000  → Solution for the futur

16. New Site

17. Conclusion Water is more and more rare even in Europe We have to take care of it!!! → Waste Water treatment is very important and necessary

18. Thank you for your attention Any Questions ?