Bringing safe water over the last-mile: Insights from autonomous chlorine production as a scalable HTWS
Document typeConference report
PublisherUPC. Departament d'Enginyeria de Projectes i de la Construcció
Rights accessOpen Access
According to United Nations, 1.8 billion people use a source of water that is fecally contaminated, while about 3.4 million die every year from diseases associated with pathogens in water. In order to achieve UN SDG 6 (access to safe drinking water), innovative approaches must be implemented. As providing piped-in water to every households seems out of reach, effective household water treatment solutions (HWTS), allowing families to treat their own drinking water, are very promising. Amongst the different HWTS technologies, chlorination is one of the most efficient and widespread. Sustainability and scalability of interventions targeting populations living at the bottom of the economic pyramid (BOP) can be achieved by relying on economically viable business models. Distribution of positive impact products for instance should rely on sustainable supply chains to overcome the last-mile and reach scale. Antenna Foundation (http://www.antenna.ch) develops appropriate technologies for BOP populations and helps its partners to build innovative business models to disseminate them. Antenna WATA®, a device producing sodium hypochlorite (active chlorine) by saltwater electrolysis, allows local and autonomous HWTS sourcing. The paper at hand validates this approach and presents the results achieved and challenges met by Antenna’s partners while producing, marketing and selling chlorine flasks as HWTS in developing world markets (Guinea-Conakry, Nepal, India and Pakistan). Hands-on experiences from small-scale to already scaled-up businesses provide key insights of the different steps of a growing HWTS social business. These lessons-learned should benefit social entrepreneurs from developing countries and development organizations that want to launch their own initiatives in this field.
CitationCastella, G. [et al.]. Bringing safe water over the last-mile: Insights from autonomous chlorine production as a scalable HTWS. A: "I International Congress on Water and Sustainability". UPC. Departament d'Enginyeria de Projectes i de la Construcció, 2017.