This paper presents one case of wastewater management approach in rural area. The design and the implementation of the solution have been developed in close consultation with the stakeholders and national authorities. The objectives are (i) to solve the problems of the uncontrolled wastewater discharged into nature without treatment, and (ii) to set up a robust solution to be recommended for application in rural school in Tunisia, devoid of sanitation system and characterized by limited financial resources for water supply and sanitation services. Several equipments to save water (push-button taps, waterless urinals, rainwater harvesting) is set up. The sanitation system consists of septic tank followed by horizontal subsurface flow constructed wetland. The treated wastewaters are used in the irrigation of the garden. The evaluation of the performances of the system after 3 years is presented.

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