Experience Note: Nature’s Answers to the Sanitation Challenge: The Application of Constructed Wetland Technology for Wastewater Management
2008: The coastal zone of the Western Indian Ocean region is the site of most major cities, harbours, industries and other socio-economic infrastructure, which increasingly affect the environment. One of the technologies being promoted by UNEP-GPA WIO-LaB project is that of constructed wetland treatment systems. This note describes several completed demonstration projects. The projects have led to a number of important lessons learnt, covering: cost-efficiency, learning from experience, stakeholder buy-in and ownership and technology. The note also addresses replication issues, including selecting the right technology for the right conditions, ensuring adequate stakeholder buy-in and building upon experience. These demonstration projects are not the first examples of such systems in the WIO region, however they have made an important contribution to extending the knowledge and understanding of this promising technology to other countries in the region. Furthermore, with the establishment of a regional center for wetland technology at the University of Dar es Salaam, the projects are expected to have very important spin-off, in providing countries in the region with an effective and cost-efficient alternative to existing wastewater treatment technology.
27 Nov 2014