GIS-Based Solid Waste Landfill Site Selection in Addis Ababa, Ethiopia

Gizachew Kabite, K.V. Suryabhagavan, Mekuria Argaw, Hameed Sulaiman

Abstract


Solid waste management is the most difficult task that many countries, both developing and developed, are facing now-a-days. Landfill is one of the easy and cost-effective management systems used in many parts of the world to dispose off solid wastes. However, inappropriate location and mismanagement will result in environmental pollution and public health hazards. The open dumping system that Addis Ababa city has followed for many years is not environmentally sound and socially acceptable because of its inappropriate location. The main objective of this study was to identify an appropriate solid waste disposal site using state-of-the-art technologies to ensure environmental sustainability and public health protection. Criteria such as geology (lithology), groundwater depth, water supply well points, hydraulic conductivity/ soil structure, land-use/ land-cover, slope, drainage pattern (water bodies), roads, airport locations were used for selecting a suitable landfill within the study area. GIS-based Multi-Criteria Evaluation methodology was employed to perform the spatial decision making process. Analytical Hierarchy Process of pair-wise comparison module was adopted to derive external and internal values of weight for all the criteria and classes within each criterion, respectively. Weighted Linear Combination was used to integrate the criteria maps and produce an overall landfill suitability map. Accordingly, 40.5 km2 (7.7%), 68.7 km2 (13%), 0.7km2 (0.01%) and 417.8 km2 (79.3%) of the total study area was found to be highly, moderately, marginally and un- suitable for landfill, in that order. Among the highly suitable landfill areas, 12 candidate sites were selected and evaluated in terms of size of the site, distance from the city center and the nearby settlements to choose the most suitable site. Three suitable solid waste disposal sites with the least negative effects on environment as well as public health have been identified with first, second and third order suitability ranks.

 


Keywords


Landfill; Solid Waste Management; Remote Sensing; Multi-Criteria Evaluation; Analytical Hierarchy Processes

References


Addis Ababa City Municipality. 2010. Overview of Addis Ababa City Solid Waste Management System. Unpublished, City Municipality Addis Ababa. 89 pages.

Akbari, V.; Rajabi, M.A.; Chavoshi, S.H. and Shams, R. 2008. Landfill Site Selection by Combining GIS and Fuzzy Multi Criteria Decision Analysis, Case Study: Bandar Abbas, Iran, World Applied Sciences Journal 3: 39-47.

Augustin, B. G. 2008. Landfill Site Suitability Analysis for Non-toxic Solid Waste in Puerto Rico- A GIS Approach. Department of Geography and Planning, University of Akron. Ohio. 25 pages.

Babayemi, J.O. and Dauda, K.T. 2009. Evaluation of Solid Waste Generation, Categories and Disposal Options in Developing Countries: A Case Study of Nigeria, Journal of Applied Environmental Management 13: 83-88.

Biotto, G., Silvestri, S., Gobbo,L., Furlan, E.,Valenti, S. and Rosselli, R. 2009. GIS, multi criteria and multi-factor spatial analysis for the probability assessment of the existence of illegal landfills. International Journal of Geographic Information Science 23: 1233 -1244.

Bjerkli, L.C. 2005. The cycle of plastic waste: An analysis on the informal plastic recovery system in Addis Ababa, Ethiopia. M.Sc thesis. Norwegian University of Science and Technology, Trondheim. 139 pages..

Chang, N.B, Parvathinathan, G, Breeden, B.J. 2007. Combining GIS with fuzzy multi criteria decision-making for landfill siting in a fast growing urban region, Journal of Environmental Management, 1: 1-15.

Cheng, S.C., C.W. and Huang, G.H. 2002. Using Multiple Criteria Decision Analysis for Supporting Decisions of Solid Waste Management, Journal of Environmental Science and Health, Part A, 37: 975-990.

Ekmekçioglu, M., Kaya, T., Kahraman, C. 2010. Fuzzy multi criteria disposal method and site selection for municipal solid waste. Waste Management, 30: 1729-1736.

Enger,.D.E. and Smith. F.B. 2008. Environmental Science, A study of Interrelationships, Eleventh edition, McGraw-Hill, New York. 40 pages.

Geologic Survey of Ethiopia 2010. Feasibility Study of the Chebi-Weregenu Sanitary Landfill Site for the City of Addis Ababa, Addis Ababa. 122 pages.

Idowu, I.A. and Ukoje. A. J. 2009. Application of Remote Sensing (RS) and Geographic Information Systems (GIS) to Environ-mental Impact Assessment (EIA) for Sustainable Development, Research Journal of Environmental and Earth Sciences 1: 11-15.

Malczewski, J. 2004. GIS-based land-use suitability analysis: a critical overview. Progress in Planning 62: 3-65.

Mulgeta, H.M.; Asegid, G. and Kifle, M. G. 2007. Geologic Mapping of Addis Ababa, Ethiopian Institute of Geologic Surveys, Addis Ababa, Ethiopia.

Munier, N. 2005. Introduction to Sustainability; Road to a Better Future, Springer, Berlin. 444 pages.

Steininger,M. and Horning, N. 2007. The Basics of Remote Sensing. Sourcebook on Remote Sensing and Biodiversity Indicators, Technical Series No.32. 201 pages

Tamiru, Alemayehu; Tenalem, Ayenew; Dagnachew, Legesse; Yirga, Tadesse; Solomon, Waltenigus; and Nuri, Mohammed. 2005. Groundwater Vulnerability Mapping of the Addis Ababa Water Supply Aquifers. Scientific Report, Addis Ababa University, Addis Ababa. 80 pages.

United Nation Environmental Programme. 2005a. Guidelines for Hazardous Waste Landfill Site Selection and Environmental Impact Assessment in Hyper Arid Areas, Regional Center for Training and Technology Transfer for the Arab States in Egypt, First Edition. 25 pages.

United Nation Environmental Programme. 2005b. Selection, Design and Implementation of Economic Instruments in the Solid Waste Management Sector in Kenya. New York.

United Nation Environmental Programme. 2005c. Solid Waste Management , Volume 1. UNEP, Japan. 1-223.

United Nation Environmental Programme. 2005d. Solid Waste Management, Volume II: Regional Overviews and Information Sources. New York. 294 pages.

United Nation Environmental Programme. 2005e. Training Module. Closing an Open Dumpsite and Shifting from Open Dumping to Controlled Dumping and to Sanitary Land Filling. UNEP, New York. 46 pages.

Zain, T. 2009. Some aspects of solid waste disposal site selection: the case of Wadi Madoneh, Jordan, International Journal of Environmental Studies 66: 207-219.


Full Text: PDF

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.

COPYRIGHT of this Journal vests fully with the National Instional Institute of Ecology. Any commercial use of the content on this site in any form is legally prohibited.