Purirification of Fluoride contaminaed Ground water for potability

In India in many rural areas and some of semi urban areas Ground water has unsafe levels of flourides making water unfit for consumption by humans and animals.

The principles of evaporation &Condensation methodology can be employed for flouride free water.It will be great if persons experienced in this method of  recovering potable water can guide me to develop one economically feasible  units for INDIA where   hot sun is available.Natural draught  can be created building a tower.