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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/3380

Title: CARBON NEUTRAL DEVELOPMENT IN THE TANNING INDUSTRY
Authors: Solomon, Legesse
Advisors: Araya Asfaw(Dr.)
Keywords: CARBON NEUTRAL
TANNING INDUSTRY
Copyright: Apr-2011
Date Added: 17-Jul-2012
Publisher: Addis Ababa University
Abstract: Ethiopia has been recording two digit economic growths for the last five years. The contribution of industrial sector for this economic growth is significant. One of the industry sectors that contribute for this two digit economic growth is the leather sector. Currently there are twenty four different tanneries in the country but in the coming few years their number is expected to increase. Annually all tanneries generate 70,104 tonnes of solid waste and 3,393,600 m3 wastewater in the pre-tanning leather processing stage and dispose into the surrounding environment without proper treatment. The leather production process could create emissions of greenhouse gas, water pollution, and hazardous wastes, which potentially disrupt local ecosystems and pose human health risks. Processing of leather also consumes large amounts of fossil fuel, which contributes to greenhouse gas emissions. To make the Ethiopian tanning industry is competitive in the global market; the industries should process the leather in the carbon neutral environment with taking mitigation measure for emission of greenhouse gases during fossil fuel use and waste disposal. In this study, tanneries biogas and methane production capacity were estimated using anaerobic digestion of solid and wastewater in the leather industry development institute and analyzed the opportunities in which the tanneries could produce in carbon neutral environment with replacing the fossil fuel used by methane generation. Using waste-to-energy principles through anaerobic digestion of tannery waste it estimates that all tanning industry can generate more than four million meter cube of biogas with three million meter cube of methane per year. This can cover approximately sixty seven percent of fossil fuel needs of the tanning industry and this can also help to mitigate 100% and 67% for methane and carbon dioxide respectively. Beside to the environmental advantage with implementation of clean development mechanism the industries could get more than a million USD per year from the annex I countries either financial or technological support.
Description: A THESIS SUBMITTED TO SCHOOL OF GRADUATE STUDIES, ADDIS ABABA UNIVERSITY IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE IN ENVIRONMENTAL SCIENCE
URI: http://hdl.handle.net/123456789/3380
Appears in:Thesis - Environmental Sciences

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