Enhanced drinking water supply through harvested rainwater treatment

Enhanced drinking water supply through harvested rainwater treatment

Publication Year:
Naddeo, Vincenzo; Scannapieco, Davide; Belgiorno, Vincenzo
Resource Type:
Technical Guide
An overview of the current situation, identifies the challenges and gaps in WASH services, and proposes recommendations for improving the situation.
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Resource Information


Decentralized drinking water systems represent an important element in the process of achieving the Millennium Development Goals, as centralized systems are often inefficient or nonexistent in developing countries. In those countries, most water quality related problems are due to hygiene factors and pathogens. A potential solution might include decentralized systems, which might rely on thermal and/or UV disinfection methods as well as physical and chemical treatments to provide drinking water from rainwater. For application in developing countries, decentralized systems major constraints include low cost, ease of use, environmental sustainability, reduced maintenance and independence from energy sources. This work focuses on an innovative decentralized system that can be used to collect and treat rainwater for potable use (drinking and cooking purposes) of a single household, or a small community. The experimented treatment system combines in one compact unit a Filtration process with an adsorption step on GAC and a UV disinfection phase in an innovative design (FAD – Filtration Adsorption Disinfection). All tests have been carried out using a full scale FAD treatment unit. The efficiency of FAD technology has been discussed in terms of pH, turbidity, COD, TOC, DOC, Escherichia coli and Total coliforms. FAD technology is attractive since it provides a total barrier for pathogens and organic contaminants, and reduces turbidity, thus increasing the overall quality of the water. The FAD unit costs are low, especially if compared to other water treatment technologies and could become a viable option for developing countries.

Resource Type

Technical Guide

Publication Year



Naddeo, Vincenzo; Scannapieco, Davide; Belgiorno, Vincenzo



Relevant Country


Specific Contaminants

Bacteria, Escherichia coli, Total coliforms

University Affiliation

University of Salerno

Business Connect Takeaways

The article discusses a study on the effectiveness of a community-based approach to promoting household water treatment in Rwanda, which involved partnerships between community-based health insurance schemes and community health workers.
The study found that the approach was successful in increasing knowledge and use of Sûr’Eau, a chlorine solution for drinking water treatment, in two pilot districts in Rwanda.
The study highlights the importance of community engagement and behavior change interventions in promoting household water treatment practices, and suggests that community-based approaches can be effective in improving access to safe drinking water in low-resource settings.

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