Solar pasteurization, solar distillation and natural riverbank filtration are low cost treatment technologies well suited for treating drinking water in developing regions of the world, according to a new book co-edited by University of Hawaiʻi Professor of Civil and Environmental Engineering Chittaranjan Ray.
The solar methods are ideal for household units, while natural riverbank filtration is applicable on a scale required for towns or cities.
Produced with Ravi Jain, dean of engineering and computer science at the University of the Pacific, Drinking Water Treatment: Focusing on Appropriate Technology and Sustainability (Springer) provides a comparative analysis of these technologies and the potential for membrane desalination in small- and medium-scale treatment systems.
The book considers differing views on sustainability as well as technology transfer possibilities and implementation procedures related to the four water treatment methods.
Ray is interim director of the UH Water Resources Research Center.