Designing Water and Used Water Schemes to Generate Energy and Minimize Energy Use

Water/Used Water Utilities are significant power users but also have the opportunity to generate their own power and design facilities which are more efficient. This presentation discussed a number of examples taken from projects around the world, including the Philippines and UK where renewable technologies have been made integral elements of capital investment programs.  These examples include a hydro-turbine on a used water treatment plant, hydro-turbine on large scale water transmission lines, solar power at a water treatment site and wind turbines within treatment plants. It also covers the use of appropriate analysis and modeling, through CFD and physical techniques improve process efficiency and in turn lowers energy use.

Aside from technical elements, the presentation highlights some of the constraints, typically from regulatory frameworks, that challenge the implementation of such approaches, and suggests some approaches that have been adopted to work allow projects to be implemented.