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4 th SEA-EU-NET Stakeholders Conference 16-17 November, 2011, Hanoi, Vietnam

Key challenges, potential measures and cooperation needs in integrated water and wastewater management in Hanoi city. 4 th SEA-EU-NET Stakeholders Conference 16-17 November, 2011, Hanoi, Vietnam.

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4 th SEA-EU-NET Stakeholders Conference 16-17 November, 2011, Hanoi, Vietnam

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  1. Key challenges, potential measures and cooperation needs in integrated water and wastewater management in Hanoi city 4th SEA-EU-NET Stakeholders Conference16-17 November, 2011, Hanoi, Vietnam Assoc. Prof. Dr. Nguyen, Viet-AnhInstitute of Environmental Science and Engineering (IESE), Hanoi University of Civil EngineeringTel. 04-3628 45 09, Fax 04-3869 3714, MP. 091320.9689, Email. vietanhctn@gmail.com; www.epe.edu.vn

  2. Content A/P. NVA. IESE, HUCE. 1. Status and challenges for water environment in Hanoi city 2. Efforts for situation adaptation and improvement 3. Hot issues under concern 4. Some topics proposed for potential cooperation 5. Conclusions and recommendations

  3. 1. Status and challenges for waterenvironment in Hanoi city Hanoi area 2007: • 920.97 km2; • 3.4 mio. population From 1/8/2008: • 3,325 km2. • 29 districts • 6.23 mio. A/P. NVA. IESE, HUCE.

  4. 1. Status and challenges for waterenvironment in Hanoi city • Rapid urbanization • Destroyed water balance and natural hydrology system • Conflicts among water users • Increasing loads from solid and liquid wastes • Climate change brings more challenges and consequences • Lack of effective, active and sustainable oriented measures

  5. 2. Efforts for situation adaptationand improvement A/P. NVA. IESE, HUCE. Groundwater protection. Diversification of water supply sources. Projects on drainage system improvement, flood mitigation Projects on wastewater collection and treatment Program on urban lakes improvement. Public and private sector mobilization. Solid waste management projects; Sanitary landfills; 3R; CDM project; Public and private sector mobilization; New Solid waste master plan development; New technologies for SW treatment options; …

  6. Sanitation projects in Hanoi city • JBIC - JICA project: • phase 1 (1996 – 2005): US$ 200 mio. • phase 2 (2006 – presence): US$ 500 mio. • Yen So WWTP – by GamudaBerhad (Malaysia): • Q = 200.000 m3/day (2008 – 2012). • US$ 400 mio. • Build – Transfer (BT) after 1 year. • In the 324-ha (including 280 ha of water surface) new commercial area: Yen So Park, US$ 1 bio. project • Hanoi is inviting private sector to participate in restoration of 45 city’s lakes. Est. cost: US$ 80 mio. (2010 – 2015).

  7. Solid waste management Tones Tones Year • Current amount of solid waste generated: 0.7 Kg/person/day • Projected amount in 2020 – 2030 period: 1.1 kg/per/day • Changing trend of composition of solid waste • (Hanoi URENCO, 2010)

  8. INCINERATION OR FUEL CELLS RECYCLE ENERGY/ELECTRICITY LANDFILL biogas FERTILISER collection COMPOSTING COMPOST TRANSPORTATION

  9. Nam Son landfill and waste treatment complex • On-going CDM project • (Hanoi URENCO, 2011)

  10. CauDzien composting plant

  11. Recycling handicraft villages

  12. 3. Hot issues under concern A/P. NVA. IESE, HUCE. GW quantity and quality. GW recharge and stabilization. GW quality (esp. contamination of Arsenic, Ammonia, organic matters, ...) Red river – trans-boundary issue. Quality and quantity. Effective management of water supply system. Non-revenue water management. Urban drainage. Flood control. Sustainable urban drainage solutions: criteria, planning, application, … Urban sewerage system management. Source control. Solidwaste management: municipal, industrial, etc. Sludge management. Septic tank sludge management.

  13. 3. Hot issues under concern (cont.) A/P. NVA. IESE, HUCE. • Integrated water resource management • Sustainable water resources planning and exploitation. • Water security. • Available water resources. Water balance. • Groundwater recharge. • Rainwater harvesting. • Receiving capacity of the water bodies. • Basin and sub-basin division. Flooding prevention and mitigation.

  14. 3. Hot issues under concern (cont.) A/P. NVA. IESE, HUCE. • Synchronization in urban infrastructure and water pollution control • Septic tank, combined sewerage and drainage, centralized wastewater treatment plants • Appropriate wastewater collection and treatment technologies • Wastewater reuse in urban agriculture • Impacts on the areas in down-stream of the rivers: Nhue - Day, Red river, with a large number of inhabitants • Nutrients and wastewater reuse • Hygienic aspects • Regulations and standards • Public acceptance, awareness

  15. Typical w/w management scheme Stomwater Combined sewerage Biogas digester DVCL Grey water Grey water Black water from ST W/w reuse (N.V.Anh, 2004, GHK-DFID)

  16. A/P. NVA. IESE, HUCE.

  17. A/P. NVA. IESE, HUCE.

  18. Open questions in Hanoi capital Master Plan to 2030 and vision to 2050 A/P. NVA. IESE, HUCE.

  19. 4. Some topics proposed for potential cooperation A/P. NVA. IESE, HUCE. Principles: integrated management, suitable to local context, step-wise, mobilization of different resources ‘’Green concept’’. Planning and integration of sustainable solutions into planning, and into implementation Integrated waste management for resource recovery Sludge, organic waste co-treatment for biogas recovery Integrated management models. Cost recovery. Sustainable Sanitation Strategy Sustainable Urban Drainage Solutions

  20. A/P. NVA. IESE, HUCE. Semi-centralized, integrated waste management for Hanoi city: Semi-San (HUCE – Darmstadt TU)

  21. MFA: N, P flows A/P. NVA. IESE, HUCE. Material Flux Analysis – A study on Nutrient balance for sustainable Hanoi (IESE – SANDEC; IESE - FES – TEMA V)

  22. A/P. NVA. IESE, HUCE. SUDS and Rainwater Harvesting (IESE,HUCE – SNU)

  23. 5. Conclusions and recommendations A/P. NVA. IESE, HUCE. Hanoi is trying with great efforts for the city development, climate change adaption and infrastructure improvement. Close and multi-sector cooperation is needed. International cooperation is necessary, besides mobilization of the local resources There are great opportunities for new ideas, innovative concepts and solutions, including technical, managerial, social, etc. Some of them are: integrated urban waste management, SUDS, source pollution control, etc.

  24. 5. Conclusions and recommendations (cont.) A/P. NVA. IESE, HUCE. These solutions can be feasible if they are evaluated, and integrated into planning and plan implementation. A long term vision, interest and support, as well as participation of the city government is needed. Advantages of accumulative scientific values, thanks to international cooperation, should be taken in integration with historical assets, cultural traditions and professional experiences of the Vietnamese partners.

  25. THANK YOU VERY MUCH Xintrântrọngcảmơn Assoc. Prof. Dr. Nguyen Viet AnhInstitute of Environmental Science and Engineering (IESE), Hanoi University of Civil EngineeringTel. 04-3628 45 09, Fax 04-3869 3714, MP. 091320.9689, Email. vietanhctn@gmail.com; www.epe.edu.vn A/P. NVA. IESE, HUCE.

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