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The needs      The treatment station  
More information : look at our reports  (Downloaded files)                                                                        

Look at the results in 3 villages before to be equipped by Alizés (pdf, french)

To improve this situation, the installation of  pumping and treatment stations is therefore an innovative action. Each installation includes :

• 2 pumps : one for pumping of river water and one for discharging into the treatment system and the distribution network. These pumps used wind energy  or solar energy or electricity (from Manantali dam) according the choice of the village ; Alizes program pay the cheap solution..
• a treatment system : decanting, filtration and chlorinating (Aquassistance system)
• in the village : storage in a water tower and distribution to the public fountains and to the private taps by gravity feed.

To pick up water in the river : a hardship.

1. Flocculation and Decanting during 12 or 24 hours of the river water in 2 water tanks (2 x 10 m3).
2. Filtration with 2 sand  filters
3. Chlorinating with a volumetric measure pump
4. Storage  in an elevated water tower (20 m3)  
5. Distribution to the public fountains and to private taps by gravity feed.

Figure of a Pumping and treatment station

click to enlarge

More photos : Ndiawdoune, Guidakhar

Front of the needs and the good results of these equipments, it has been decided to give priority to them during the 2nd stage of Alizés (period 2004-2008).