June 2017

Risk assessment of cyanobacteria-toxins for small drinking water treatment plants with lake water intakes

Recent increases in the frequency and severity of toxic algae blooms in freshwater lakes has been a major concern for small communities that rely on them for drinking water supply. A hazard quotient approach to risk characterization is employed to analyze the effectiveness of five conventional treatment methods for removal of cyanotoxins. The application of the method for risk assessment and mitigation is demonstrated...

Author(s): Uche A. Uduma, Edward A. McBean and Bahram Gharabaghi

June 2017

Irrigation water quality of River Kulfo and its implication in irrigated agriculture, South West Ethiopia

Irrigation is a common agricultural practice for farmers in the periphery of flowing rivers in Ethiopia. In the south west Ethiopia, fruits and vegetables are majorly produced under irrigation where the mode of irrigation is by pumping water from flowing rivers. Irrigated agriculture has only been linked to the availability of water in physical terms, while the quality of water is significantly important for sustainable...

Author(s): Molla Mekonnen Alemu and Fitsume Yemenu Desta