This study investigates the use of constructed wetlands as a cheaper and more effective alternative method of treating domestic wastewater in tropical environments. This book determines the technical viability of the model, with respect to treatment performance under different operating conditions and the economic competitiveness of technology in Uganda and across the region. The Pilot Constructed Wetland investigated in this study was situated at the National Water and Swerage Corporation's Jinja Sewage Works at Kirinya, Uganda. The study revealed the economic viability of constructed wetland systems in the tropical regions. These could be established at competitive costs with waste stabilisation ponds.

Flood disasters continue to occur in many countries in the world and cause tremendous casualties and property damage. To mitigate the effects of floods, a range of structural and non-structural measures have been employed including dykes, channelling, flood-proofing property, land-use regulation and flood warning schemes. Such schemes can include the use of Artificial Neural Networks (ANN) for modelling the rainfall run-off process as it is a quick and flexible approach which gives very promising results. However, the inability of ANN to extrapolate beyond the limits of the training range is a serious limitation of the method, and this book examines ways of side-stepping or solving this complex issue.