URBAN STREAM REHABILITATION

1. URBAN STREAM REHABILITATION

2. INTRODUCTION, OBJECTIVES AND IMPACTS

3. Development of the urban areas Cropland, Animals Rural homes Suburban development Industrial development Urban 1. Introduction, objectives & impacts

4. Phases in Unsustainable Urban Development Early Civilisation - Living in Nature - Low Level of Pollution Living in caves Defecation in nature 1. Introduction, objectives & impacts

5. Phases in Unsustainable Urban Development Moving to Streams - Beginnings of Pollution Garbage Defecation in nature 1. Introduction, objectives & impacts

6. Phases in Unsustainable Urban Development Uncontrolled Urbanisation (Occupation) of Flood Plain Streams as Recipients of Solid & Liquid Wastes Problems with Flooding Defecation in nature Liquid & Solid waste 1. Introduction, objectives & impacts

7. Phases in Unsustainable Urban Development Channelisation of Urban Streams Recipients of Solid & Liquid Wastes - Wastes & Stormwater Problems with Flooding & Clogging Liquid & Solid waste 1. Introduction, objectives & impacts

8. Phases in Unsustainable Urban Development Sewers Connected to Channelised Streams 1. Introduction, objectives & impacts

9. Phases in Unsustainable Urban Development Uncontrolled Urbanisation in the Upper Parts of a Stream Building of Separate Sewers - Problem of Inlet Clogging 1. Introduction, objectives & impacts

10. Phases in Unsustainable Urban Development Renaturalisation of Urban Streams Back to Nature 1. Introduction, objectives & impacts

11. Renaturalisation of Urban Streams Back to Nature…

12. Natural conditions Self-sustaining coping capacity BALANCE 1. Introduction, objectives & impacts

13. Self-sustaining coping capacity Point source Pollution SELF-PURIFICATION 1. Introduction, objectives & impacts

14. Self-sustaining coping capacity Point source Pollution Self purifying (coping capacity potential) BALANCE 1. Introduction, objectives & impacts

15. Self-sustaining coping capacity Point source Pollution WASTE WATER TREATMENT Self purifying (coping capacity potential) 1. Introduction, objectives & impacts

16. Self-sustaining coping capacity Point source Pollution Self purifying (coping capacity potential) BALANCE Waste water treatment 1. Introduction, objectives & impacts

17. Self-sustaining coping capacity Point source Pollution Self purifying (coping capacity potential) SELF-PURIFICATION Waste water treatment Diffuse source Pollution 1. Introduction, objectives & impacts

18. Self-sustaining coping capacity Point source Pollution Self purifying (coping capacity potential) BALANCE Waste water treatment Diffuse source Pollution Self purifying (coping capacity potential) 1. Introduction, objectives & impacts

19. Self-sustaining coping capacity Point source Pollution ? Self purifying (coping capacity potential) Waste water treatment Diffuse source Pollution Self purifying (coping capacity potential) 1. Introduction, objectives & impacts

20. Self-sustaining coping capacity Point source Pollution Self purifying (coping capacity potential) Waste water treatment IMBALANCE ! Diffuse source Pollution Self purifying (coping capacity potential) 1. Introduction, objectives & impacts

21. Self-sustaining coping capacity IMBALANCE ! Degradation of aquatic environment Degradation of ecology 1. Introduction, objectives & impacts

22. Rehabilitation objectives REHABILITATION Improvement of the river statein: Physical characteristics ? Chemical quality Ecological diversity Aesthetical appearance 1. Introduction, objectives & impacts

23. Rehabilitation objectives REHABILITATION Improvement of the river statein: Creation of habitats for bio-diversity ? Aesthetics (Amenities) Social improvement Maintenance cost 1. Introduction, objectives & impacts

24. Rehabilitation impacts REHABILITATION The main benefits are: Social benefits Aesthetic benefits Nature Safety 1. Introduction, objectives & impacts

25. For more information follow this link 1. Introduction, objectives & impacts