Environmental Science and Technology for Water and Land Use

Research introduction
I am a Ugandan researching on Sabo-Dams in relation to Elution and transportation of inorganic elements downstream. The presence of trace elements in rivers results from the decomposition of organic and particulate matter. My study focuses on two main elements i.e. manganese and iron whose form of existence varies on the pH, levels of oxygen, amount of sediment and other physical factors along the river. Dams increase sedimentation upstream creating zones for anaerobic decomposition. High levels of manganese and iron in water are a threat to the aquatic and terrestrial life that interacts with the contaminated ecosystem. Since the amount of organic matter varies from season to season, I am studying the concentration of Manganese and Iron eluted in the different seasons of the year in relation to the sediment level and empty dam capacity. And trying to find out how long (time and distance) it takes for the two elements to reach the normal acceptable levels. Although their importance is little known in developing countries, Sabo-Dams are an important tool for environmental disaster mitigation. At the end of my study, I hope to come up with a model for analysis these elements in rivers and streams.