ABSTRACT
Biosand filtration technology is a water purifying technology for drinking purpose getting popularized in the third world countries of Africa and Asia, where it is an economically viable source of clean drinking water as compared to other conventional alternatives like boiling. This technology has come up as an institutional reform in the society of developing countries as boiling of water is mostly fueled by forest wood in African countries like Ethiopia. Therefore, it is also contributing to reducing carbon emission and economic stress. A lot of biosand filtration models have been developed which roots to modern history as well, but in this chapter, some of the successful filtration models have been mentioned. This technology’s success in improving water quality conditions depends on mass participation as per the guidelines of 186local responsible authority working in accordance with WHO guidelines. In order to provide a technology for household wastewater filtration biosand filtration is a promising technology which has a lot of scope for improvement in the existing filtration models.
