The Geological Characteristics of Ethiopia

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Ethiopia with a growth rate of 8.5 percent per year is one of the 12th fastest growing economies in the world in 2012. As major sectors of the economy, the agriculture, industry and services sectors contribute 4.9 percent, 13.6 percent and 11.1 percent respectively (Geiger and Moller, 2013). With this growth pace, the country aims to achieve the mid economy class countries in 2025 (Ministér, 2011). The growth and transformation plan (GTP) gives vital attention to the manufacturing sectors to be the basic engine of economic growth and the cement manufacturing industry considered to contribute to the success of this plan (Ministér, 2011).
The geological characteristics of Ethiopia with its large limestone deposit and the fast growing infrastructural sector with their huge cement demand provides incentives for cement production and expansion factories in the country (Edwards, 2013). Moreover, there is an increasing need for housing and other constructions caused by the increasing population and the growth of business cycles. This situation has surged the establishment of new cement plants at fast speed of expansion (Amin and Ali, 2010). Ethiopia planned to increase the cement production for domestic and foreign market supply in the five year growth and transformation plan (GTP) from the initial capacity of 2.7 million tons in 2009/10 to 27 million tons in 2014/15 and to achieve annual cement per capita consumption of 300kgs (Ministér, 2011). The effort of the country’s investment agency (2008) in this regard is geared towards promotion of the accesses and potential of cement raw material supply in the country by motivating investors to invest in cement factory by defining the opportunities and incentive of cement investment
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...d coal injected to kiln for clinkering and 60% to calciner for calcination.
In relation to their pollution contribution different scholars explains; the quarrying process generally does not lead to significant problems (Van Oss & Padovani, 2002). On the one hand, dust emission sources are kiln, crusher, grinders, clinker cookers and material handling equipment (Kumar and Armani 2012). In addition, during clinker manufacturing of pyro-processing there is a considerable source of emission such as Cement Kiln Dust (CKD), gaseous like CO2 during calcination and combustion, sulphur oxide, nitrogen oxide and dioxin (Van Oss & Padovani, 2002).Thus, this study focus on the two processing units (Fig 1) because they are major source of impacts. They required more energy source and raw material thereby release pollutants to the surrounding environment during their process.

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