Designed by a pair of architects, the scheme could provide a constant supply of fresh water in polluted and remote areas in just about any climate.
""The drawing water challenge (dwc) was won by Joseph Cory (Geotectura) & Eyal Malka (Malka Architects) -photo- for their innovative WatAir concept. WatAir is an elegant system which extracts water vapour from air, using a 96m
2 pyramidal panel to deliver at least 48 litres of water per day.
'A wonderfully simple concept which draws its inspiration from nature, resulting in a minimal intervention with a potentially big impact' (Jo da Silva - Arup International Development)""
Links, pdf :
winners_drawing_water_challenge.pdf (5,2 Mo)
In January 2007 a poll carried out by the British Medical Journal found that sanitation was the greatest
medical milestone of the last century and a half. (1,6 Mo)
The drawing water challenge, launched in September 2006 by Arup and WaterAid, sought inspirational ideas and concepts that could help bring clean, safe water and sanitation to the millions of people around the world who currently lack it. Proposals were had to be feasible and support WaterAid’s principles as outlined in the How we work section of the website.
91 entries were submitted, from 19 countries around the world. A panel of respected judges including Sir Christopher Frayling, Ken Shuttleworth, Frank Lawson, Valerie Kuntz, and Arup's Jo da Silva and David Glover selected the winning shortlist.
The winners were formally announced at an awards ceremony on 15 February.
The three winning entries were as follows:
1st place - "WatAir" by Joseph Cory (Geotectura) and Eyal Malka (Malka Architects) - Haifa, Israel
2nd place - "Paddle for Water" - a cycle driven water pump by Maxime Hourani (Atelier Hapsitus) - Beirut, Lebanon
3rd place - "Use Your Water" - sustainable sewage treatment by Christoph Wust and Eva Nemcova (University of Hanover) - Germany
The judges' comments on WatAir reflected its flexibility and simplicity. Jo da Silva from Arup called it "a wonderfully simple concept which draws its inspiration from nature."
The second and third place winners also garnered praise ranging from "embracing the social aspects of time taken to get water" and showing a "creative use of urban landscape to leapfrog piped water technology..."
In addition, three schemes were deemed highly commended by the judges:
"Life band" by Sam Wingfield and Ben Hodgkin (Faber Maunsell, Birkenhead, UK)
"Portable water test kit" by Sadia Moeed and Tom Burgoyne, (Environment Agency, Peterborough, UK)
"Rain water catch" by Scott Wehner and Tim Hickey, (Friends of Water, Vancouver WA, USA) More information about the challenge can be found on Arup's website.
Une "usine à rosée" en plein désert
source :
www.bulletins-electroniques.com/actualites/41564.htm
Des chercheurs de l'université Pascal Paoli de Corse et le CNRS ont obtenu des résultats très encourageants sur la collecte de la condensation de vapeurs d'eau atmosphérique. Ainsi, à l'initiative de la France, l'organisation mondiale pour l'utilisation de la rosée développe des projets communs avec l'Inde et Israël. Certains plastiques (dits radiatifs) permettent de condenser jusqu'à 0,6 litres d'eau pure par m
2.
Une "usine à rosée" est en phase de test dans le désert du Néguev en Israël dans le dessein de recueillir plusieurs mètres cubes d'eau par nuit. Ce système couplé à des capteurs photovoltaïques permettrait de produire eau et électricité en plein désert. Pour les pays en voie de développement, où l'amplitude thermique est importante, cela pourrait même se révéler être une révolution !
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