Urban and peri urban water management nexus to a dying river_Prof. MS Khan


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Peri-urban water management nexus in Khulna presented at the Stockholm World Water Week, 2011 by Prof. MS Khan.

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Urban and peri urban water management nexus to a dying river_Prof. MS Khan

  1. 1. Urban and Peri-Urban Water Management Nexus to a Dying River<br />M. Shah Alam Khan<br />Professor and Director<br />Institute of Water and Flood Management, <br />Bangladesh University of Engineering and Technology<br />Levers of Change in (Peri) Urban Water Management<br />August 23, 2011<br />
  2. 2. Presentation Outline<br />Khulna: general description<br />Urban/Peri-urban vulnerabilities<br />Mayur river: urban and peri-urban links<br />Mayur river: issues and challenges<br />Actions/Adaptations<br />
  3. 3. Khulna City<br />Third largest metropolitan city<br />- Population 1.7 million (3.8% growth)<br /><ul><li>Area 46 sq. km
  4. 4. Groundwater based water supply</li></ul>(56 production wells, 12,000 hand tubewells)<br />Water institutions: <br />- Khulna WASA, KCC, KDA, Union-level community organizations<br /><ul><li>Strong NGO, civil society mobilization around water </li></ul>(Coastal Water Convention 2011)<br /><ul><li>Mayor popular across party lines</li></li></ul><li>Urbanized area<br />Mayur river<br />Rupsha river<br />Regulator<br />River System<br />Rupsha-Bhairab<br />(Ganges tidal plain)<br />Mayur river <br />(flow controlled by gates)<br />
  5. 5. Urban/Peri-Urban Vulnerabilities<br /><ul><li>Water scarcity for drinking, sanitation and agricultural use
  6. 6. Wastewater discharge, solid waste disposal, rainfall flooding and water logging
  7. 7. Climate change induced sea level rise and salinity intrusion
  8. 8. Salinity, iron and arsenic in groundwater
  9. 9. Absence of community participation in gate operation and management
  10. 10. Absence of community participation and institutional arrangement for water management
  11. 11. Conflict between upstream and downstream (Mayur river) water users (culture fisheries)
  12. 12. Conflict between urban and peri-urban water users</li></li></ul><li>Vulnerabilities<br />Urbanization stress on peri-urban communities<br />- Land conversion and depleting waterbodies<br /><ul><li>Wastewater and solid waste disposal</li></ul>(18 drains from the city into the Mayur river)<br /><ul><li>Adverse impacts on ecosystem and livelihoods
  13. 13. Displacement of the poor</li></li></ul><li>Vulnerabilities<br />Projected climate change impacts <br />(one of the most vulnerable cities)<br /><ul><li>More frequent extreme events: Cyclone, storm surge, rainfall
  14. 14. Sea level rise resulting in salinity intrusion, drainage congestion and storm surge/tidal flooding
  15. 15. Adverse impacts on vulnerable communities
  16. 16. ‘Climate migrant’ influx</li></li></ul><li>Mayur RiverUrban/Peri-urban Links<br />Stormwater and wastewater drainage<br />Solid waste disposal <br />Water supply<br />Ecosystem and livelihood<br />
  17. 17. Mayur RiverIssues and Challenges<br />Natural (tidal) flow of the river is obstructed (by gates)<br />The river has lost its conveyance capacity due to solid waste accumulation<br />Water is unsuitable for aquatic life (DO: 0.3 - 1.4 mg/L; pH: 6.32 - 6.85)<br />Conflict between KCC, KDA and KWASA regarding ownership of the problem<br />Absence of strong advocacy for the peri-urban communities<br />
  18. 18. Blame it ALL on Climate Change!<br />Khulna has been the focus of CC studies and capacity building programs<br />These programs have generated a lot of awareness among the vulnerable communities<br />Local people believe almost all the problems (including WL rise and increasing salinity) are caused by CC impact<br />Need to isolate CC impact and other causes<br />
  19. 19. Actions/Adaptations<br />Water supply, sewage treatment and solid waste management programs for the city (Water importation from peri-urban areas/distant rivers)<br />Restoration of the Mayur river – ‘Linear Park’ <br />Community based solid waste management and biological treatment<br />Wastewater irrigation<br />
  20. 20. Acknowledgement<br />
  21. 21. Thanks for listening<br />