1 / 27

DECENTRALIZED WASTEWATER MANAGEMENT SOLUTION FOR DENSE PERI-URBAN AREAS IN VIETNAM

2007 East Asia Ministerial Sanitation Conference Beppu city, Japan, 30 Nov. – 1 Dec. 2007. DECENTRALIZED WASTEWATER MANAGEMENT SOLUTION FOR DENSE PERI-URBAN AREAS IN VIETNAM. NGUYEN, Viet-Anh, Assoc. Prof. PhD.

kiona
Download Presentation

DECENTRALIZED WASTEWATER MANAGEMENT SOLUTION FOR DENSE PERI-URBAN AREAS IN VIETNAM

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. 2007 East Asia Ministerial Sanitation ConferenceBeppu city, Japan, 30 Nov. – 1 Dec. 2007 DECENTRALIZED WASTEWATER MANAGEMENT SOLUTION FOR DENSE PERI-URBAN AREAS IN VIETNAM NGUYEN, Viet-Anh, Assoc. Prof. PhD. Centre for Environmental Engineering (CEETIA), Hanoi University of Civil Engineering

  2. Content • Introduction • Measure taken • Results • Conclusions and Recommendations

  3. Introduction

  4. Red river delta peri-urban areas: challenges • In-between urban and rural context: • High pressures from urbanization • Low income, limited awareness, less infrastructure investments from higher level governments • Uncovered by urban sanitation services • High groundwater table • Nutrients reuse • High density • Mixed production (livestock breeding, food processing, other handicrafts) and living spaces • Different water sources (rain, well, public shallow well ...) • Flat topography, frequent flood, difficult to separate surface drain and wastewater • Toilets can not solve sanitation problem

  5. Lai Xa hamlet, Ha Tay province Hanoi: 0.5 km Lai Xa hamlet 900 households

  6. 2. Measures taken • Assurance: willingness to change! • Involvement of Community leaders, Group of Activists (40) – from Clusters, Mass Organizations, ... • Coordination role! • Start with IEC • Master Plan for Water Supply and Sanitation for a Community • Community choice: • Step-by-step approach in infrastructure development

  7. Technical solutions • Source separation of solid waste • Composting station and sanitary landfill • Decentralized scheme of wastewater mgmt • CSOs • VIP and DVCL for unsewered households • Start from household: Screen and Grid removal. Guidance! Regular check! • Community BASTAFs + CWs. Step-wise approach. • Safe reuse of wastewater(?)

  8. To start from household! Indoor sanitation Cluster sanitation Wastewater treatment station Discharge/Reuse

  9. ST < STAF ~ BAST < BASTAF

  10. BASTAF for 80 households

  11. Non-technical solutions • Training of trainers (40 activists) • Community agreement, signed by households • Institutional framework • 50/50 share in investment costs • Support for the poor • Community supervision • Setting up of local Sanitation Team • Operational costs: household + local government

  12. Involved Stakeholders

  13. 3. Results • Visible physical improvements • Health improvement • Social environment in the village

  14. Before After

  15. After Before

  16. Some other solutions to share

  17. Further readings • Duncan Mara, Jan-Olof Drangert, Nguyen Viet Anh, Andrzej Tonderski, Holger Gulyas, and Karin Tonderski. Selection of sustainable sanitation arrangements.IWA Journal: Water Policy, 9 (2007), 305–318 pp. • Julie Beauséjour, Nguyen Xuan Dzung and Nguyen Viet Anh. Public participation and improved households practices in a small sanitation project in Lai Xa, Vietnam.Proceedings: 32nd WEDC International Conference, Colombo, Sri Lanka, 2006. • J. Beauséjour and A. V. Nguyen. Decentralized Sanitation Implementation in Vietnam: A Peri-Urban Case Study.IWA Journal: Water Science & Technology, Vol. 56 (2007), No. 5, pp 141 – 148.

  18. 4. Conclusions and Recommendations • Community-based sanitation • Coordination role of local government • Decentralized approach, step-by-step • Low-cost technical solutions, innovations • Institutional and financial mechanism to sustain the system • IEC should go first and stay along with technical solutions to ensure political will, behavior change and system sustainability

  19. Thank you very much for your attention

More Related