Presentation on theme: "Author: Wolfgang Eloy Buchner (*)"— Presentation transcript:
1 Author: Wolfgang Eloy Buchner (*) EMAS Water SystemsAuthor: Wolfgang Eloy Buchner (*)(*) German promoter of improved rural water supply and sanitation, working in Bolivia.
2 EMAS “Escuela Móvil de Agua y Saneamiento” (Mobile School for Water and Sanitation)Established in Bolivia since 1990.Promoted drilling of > 20,000 wells and > 50,000 water systems within the reach of the most disadvantaged rural populations in the developing world.Construction by the users themselves.EMAS handpump technology patented for the benefit of Humanity.Provides water supply solutions for any place inhabited by humans.
3 EMASThe TechnologyManual drilling of wells up to 100 m deep at a cost of 6-8 US$/m.Construction of handpumps by the users themselves with cheap materials (aprox. US$ 6 plus US$ 1 /meter water depth) and available from any hardware store.Self-construction of small water storage tanks and distribution systems, complete with wash basins and simple showers.Self-construction of rainwater harvesting systems, with storage tanks up to 8,000 liters each, featuring different models in accordance with local conditions (one bag of cement per 1,000 litres capacity).Self-construction of small irrigation systems for household gardens.Water filters, solar water heaters, dry letrines etc.
4 Self-construction in Nicaragua The EMAS pumpComponents of the pumpGlass marble valvesSelf-construction in Nicaragua
5 EMAS Handpump, installed in a thin (1.5”) manually drilled borehole. Final ProductsSimple washing basin with faucet, shower cell, and their water deposit, filled with the pump, on top.EMAS Handpump, installed in a thin (1.5”) manually drilled borehole.
6 EMAS Rainwater Harvesting Horizontal underground rainwater tank(6,000 litres)Fast filterLarge superficial tank of ferro-cement (8 m3)
7 Some other EMAS alternatives Water filterNarural well captationDry letrine
8 Simple and cheap technology, but ROBUST! (3 persons plus a 120 kg water tankon top of the shower cell without frame)