2021-12-212021-12-212021-11-27http://hdl.handle.net/20.500.12272/5877Abstract: At present, one of the most important challenges for the world is to provide access to safe and clean water for the entire population. Lack of water can have a negative impact on human health. Therefore, finding ways to solve this problem is of utmost importance. Fe and Mn are abundant in the Earth’s crust making it one of the most common pollutants for groundwater. This paper focuses on the biological filtration method that uses bacteria to remove Fe and Mn from groundwater. It also covers the groundwater characteristics, Fe and Mn pollution sources and the way it affects human health. The main objective of this work is to present the biological filtration method as a simple, low-cost operation and maintenance with Fe and Mn removal efficiencies between 85%to 95%. In this manner, a suitable technology for small waterworks is achieved, which is particularly suited for people in rural areas or small cities.plainengopenAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Attribution-NonCommercial-NoDerivatives 4.0 InternacionalBacteriabiological filtrationfiltración biológicaFe and Mngroundwateragua subterráneawater treatmentTratamiento de aguasinfo:eu-repo/semantics/reportAlvarez, Jorgelina B., Alarcon Lasagno, RamiroCreative Commons / Atribución-