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中南大学学报(英文版)

Journal of Central South University

Vol. 25    No. 3    March 2018

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Potential landfill site selection for solid waste disposal using GIS and multi-criteria decision analysis (MCDA)
S. Kapilan1, K. Elangovan2

1. Department of Civil Engineering, Akshaya College of Engineering and Technology, Kinathukadavu, Coimbatore–642109, India; 2. Department of Civil Engineering, PSG College of Technology, Coimbatore–641004, India

Abstract:Proper solid waste disposal is an important socioeconomic concern for all developing countries. Municipalities have their own policies, individual approaches and methods to manage the solid wastes. They consider wastelands outside the urban area as the best suitable for the solid waste disposal. Such improper site selection will create morphological changes that lead to environmental hazards in the urban and its surrounding areas. In this research, the site selection for urban solid waste disposal in the Coimbatore district used geographical information system (GIS) and multi-criteria decision analysis (MCDA). Thematic layers of lineament density, landuse/landcover, population density, groundwater depth, drainage density, slope, soil texture, geology and geomorphology were considered as primary criteria and weights for criteria, and sub-criteria were assigned by MCDA analysis. The resultant weight score was validated by consistency ratio so that the efficiency of the selected criteria was justified. The overlay analysis in GIS environment provides 17 potential zones in Coimbatore district, among which, four suitable sites were screened and refined with the help of field investigation and visual interpretation of satellite image. The result of landfill suitability map shows the effectiveness of the proposed method.

 

Key words: municipal solid waste; landfill site; multi-criteria decision analysis; remote sensing; GIS; Coimbatore

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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