arid and desert lands in terms of specific environmental characteristics such as low annual precipitation,sequential droughts, huge drop in ground water levels or the like, have always faced strict limitations in waterresources. in the shadow of these characteristics and many other factors, water price index (wpi) is significantlyaffected. this study set out with the aim of identifying and dete...

An international partnership to help the poor gain sustained access to improved water supply and sanitation services A study in community-managed water supply projects in 15 countries

Water supply system consumes large amount of power load during water treatment and transportation of purified water. Many energy conserving high efficiency materials such as DC motor and LED light have recently been introduced to water supply system for energy conservation. This paper performed empirical analysis on BLDC and AC motors and comparatively analyzed the change in power according to ...

The Water and Sanitation Program (WSP) is a multi-donor partnership administered by the World Bank to help the poor gain access to water supply and sanitation services that are accessible, safe, and sustainable. Th e fi ndings, interpretations, and conclusions expressed in this document are entirely those of the authors and should not be attributed to the World Bank, its affi liated organizatio...