ISBN: 1 84057 368 6
Published Date: 10/01/2005
Reclaimed water, obtained by the appropriate treatment of wastewater, is a valuable resource that can be deployed by water utilities to augment drinking water supplies through indirect potable reuse or substitution. The objective of this study was to develop a framework that offers water suppliers the likelihood of more widespread acceptance of the common practice of using treated and blended wastewater as a raw water source to be treated for drinking water and as a replacement for current uses of drinking water.
The framework provides a consistent basis for the development of appropriate and verifiable standards and guidelines at local, regional and national levels. It incorporates the latest principles of risk management and risk assessment based on pathway/risk endpoint. The framework takes into account fully the increasing role of stakeholders and the need for reassurance regarding human and ecosystem health.
The report sets out a high level framework that may be used as a road map to define the key issues and data requirements of a potential application for reclaimed water. Underpinning the high level framework is a series of models that address in more detail the steps entailed when evaluating specific reuse applications. Case studies are used to illustrate how the framework may be applied when reuse schemes are developed and implemented.