In this paper, the economic impact of having a wastewater treatment plant (WWTP) for medium sized towns (Sivas and Fethiye) in Turkey with the objective of environmental pollution prevention is assessed by taking investment and operation costs, required tariff levels, affordability and willingness to pay of the users into account.

The article discusses the various benefits of the latest "Non-Contact" UV disinfection systems used with AFP 840 TM resins over conventional "Contact" UV systems and older Teflon based non-contact systems.

The introduction of chlorine at the end of the treatment line for residual protection purposes, widespread use of ozone at various stages of treatment and the development of new ozone generators are the latest technical trends that have led to numerous changes in the water disinfection processes.

Water supply through gravity flow mechanism to rural homes, especially in tribal areas, can be regarded as a key component of rural development. A simple and sustainable concept, it has successfully provided a continuous water supply to rural villages. In gravity flow, water is harnessed by estimating the flow of its pressure from the water source and storing it in a water tank from where it is supplied to all households. Gram Vikas, a rural development organization in Orissa, uses this eco-friendly technology to help the people of tribal and rural areas.

When was the last time you drank water straight from the tap at your house to slake thirst on a hot summer day, without hesitation. Chances are you would have at least boiled or filtered the water. The public water supply in India is so unreliable that th

This article describes the Reverse Osmosis technology and its cost economics to convert the brackish ground water and tap water of poor quality to potable water.