Browsing by Author "shiferaw, Getachew"

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    Energy Potential of Municipal Solid Waste for Incineration: Reppi Open Dump Site, Addis Ababa
    (Addis Ababa University, 2014-04) shiferaw, Getachew; Worku, Teshome
    Solid waste handling and disposal are the pressing problems in Addis Ababa City. Millions of tons of municipal solid waste, hazardous/industrial wastes and commercial xi wastes are handled daily throughout municipal areas. Addis Ababa cleansing management agency confronted with great challenges in disposing of solid wastes in an efficient, cost effective and environmentally safe manner. The total quantity of MSW generated at the site was 3800m3/day or 760 ton/day, annually 1,387,000 m3 Based on the results obtained, I recommended that the municipal solid waste at Reppi Dump Site is feasible for incineration as a strategy to reduce the amount of disposed waste and energy recovery.. Knowledge of the energy potential of MSW for incineration is necessity, in order to plan for energy recovery from MSW. Energy potential from municipal solid waste for incineration was done in an area called Reppi /Koshe, which is the only dumpsite in the city, with objective of evaluating energy potential (heating value) of municipal solid waste and feasibility for incineration. Solid waste sampling and laboratory analysis were carried out according to the random sampling method based on American Society of Testing and Materials (ASTM) standards to determine the waste compositions and proximate analysis. The laboratory work undertaken at school of chemical and bioengineering and Arat kilo chemistry department. According to the weekly analysis the main compositions of the generated MSW in the site were food waste, chat waste and fruit waste which accounted 65% by weight. In this work an average calorific value of 19.78 MJ/kg with variable high water content of 44-65% was determined. Based on the average calorific value, moisture content and MSW removed the net energy potential is 7.68 MJ/Kg with 84.5% energy efficiency.