Effect Estimation of Dry-Toilet Application for Rural Farmer Family in Burkina Faso
摘要
Water, sanitation and agriculture are important issues in Burkina Faso. In arid areas where water is significantly important resources, a dry-toilet-based resource recycling sanitation system seems more suitable than a conventional water-flush-toilet-based sanitation system. For designing that kind of sanitation system, the important factor is not only the treatment technology but also the material flow design of the total system. As a first step for designing the optimal material flow, this study carried out a household survey in the rural area of Burkina Faso, to reveal the current condition of water related material flow in and around a household. According to the results, the effect of the resource recycling sanitation system application was estimated as follows. Urine can replace almost half of chemical fertilizer. Graywater reuse allows this household to expand only 17 to 37 m 2 of vegetable garden however, it can irrigate through a year to the adjacent vegetable garden. This may enable a different schedule of cultivation to what is generally practiced with the farmer cultivating and selling produce strategically.