Cargando…

Landfill Site Selection Using GIS Based Multicriteria Evaluation Technique in Harar City, Eastern Ethiopia

Solid waste disposal is one of the challenging components in integrated solid waste management. Particularly the problem is prominent in cities with rapid population growth and waste generation. Harar, a capital city of Harari regional state located in the eastern part of Ethiopia, covers an area of...

Descripción completa

Detalles Bibliográficos
Autores principales: Asefa, Elsai Mati, Damtew, Yohannes Tefera, Barasa, Kefelegn Bayu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: SAGE Publications 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8552383/
https://www.ncbi.nlm.nih.gov/pubmed/34720587
http://dx.doi.org/10.1177/11786302211053174
_version_ 1784591364827119616
author Asefa, Elsai Mati
Damtew, Yohannes Tefera
Barasa, Kefelegn Bayu
author_facet Asefa, Elsai Mati
Damtew, Yohannes Tefera
Barasa, Kefelegn Bayu
author_sort Asefa, Elsai Mati
collection PubMed
description Solid waste disposal is one of the challenging components in integrated solid waste management. Particularly the problem is prominent in cities with rapid population growth and waste generation. Harar, a capital city of Harari regional state located in the eastern part of Ethiopia, covers an area of 19.5 km(2) and has a total population of 270 000. Despite the fastest population growth of the city, it doesn’t have a landfill site to accommodate the waste generated and open dumping is in full practice. As an integral part of a solid waste management plan, the construction of a landfill has been suggested by the city municipality. However, the multi-dimensional and conflicting aspect of landfill sitting, which involves environmental, social, technical, and economic considerations, challenges the location of a suitable landfill site. In the current study, we have applied geographic information system (GIS) and analytical hierarchy process (AHP) multi-criteria decision analysis to select a landfill site through minimizing conflicting interests. Environmental and socio-economic factors including well water, distance from residence, land use and land cover, elevation, slope, and wind direction were weighted to develop a suitability index for landfill siting. Experts’ opinion was obtained to rank the aforementioned factors. The required landfill size was determined based on population growth, waste generation rate, and waste volume/year. Accordingly, the suitability index resulted in 3% of the area as highly suitable, and the rest 0.29%, 14.18%, 52.75%, and 29.8% classified as unsuitable, least suitable, moderately suitable, and suitable, respectively. Considering the future trend of waste generation, 16 ha of land located in the eastern part of the city was selected as a candidate landfill site with all the required suitability. The results of this study can be used as an input for decision making in siting landfill for Harar city.
format Online
Article
Text
id pubmed-8552383
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher SAGE Publications
record_format MEDLINE/PubMed
spelling pubmed-85523832021-10-29 Landfill Site Selection Using GIS Based Multicriteria Evaluation Technique in Harar City, Eastern Ethiopia Asefa, Elsai Mati Damtew, Yohannes Tefera Barasa, Kefelegn Bayu Environ Health Insights Original Research Solid waste disposal is one of the challenging components in integrated solid waste management. Particularly the problem is prominent in cities with rapid population growth and waste generation. Harar, a capital city of Harari regional state located in the eastern part of Ethiopia, covers an area of 19.5 km(2) and has a total population of 270 000. Despite the fastest population growth of the city, it doesn’t have a landfill site to accommodate the waste generated and open dumping is in full practice. As an integral part of a solid waste management plan, the construction of a landfill has been suggested by the city municipality. However, the multi-dimensional and conflicting aspect of landfill sitting, which involves environmental, social, technical, and economic considerations, challenges the location of a suitable landfill site. In the current study, we have applied geographic information system (GIS) and analytical hierarchy process (AHP) multi-criteria decision analysis to select a landfill site through minimizing conflicting interests. Environmental and socio-economic factors including well water, distance from residence, land use and land cover, elevation, slope, and wind direction were weighted to develop a suitability index for landfill siting. Experts’ opinion was obtained to rank the aforementioned factors. The required landfill size was determined based on population growth, waste generation rate, and waste volume/year. Accordingly, the suitability index resulted in 3% of the area as highly suitable, and the rest 0.29%, 14.18%, 52.75%, and 29.8% classified as unsuitable, least suitable, moderately suitable, and suitable, respectively. Considering the future trend of waste generation, 16 ha of land located in the eastern part of the city was selected as a candidate landfill site with all the required suitability. The results of this study can be used as an input for decision making in siting landfill for Harar city. SAGE Publications 2021-10-26 /pmc/articles/PMC8552383/ /pubmed/34720587 http://dx.doi.org/10.1177/11786302211053174 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by-nc/4.0/This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage).
spellingShingle Original Research
Asefa, Elsai Mati
Damtew, Yohannes Tefera
Barasa, Kefelegn Bayu
Landfill Site Selection Using GIS Based Multicriteria Evaluation Technique in Harar City, Eastern Ethiopia
title Landfill Site Selection Using GIS Based Multicriteria Evaluation Technique in Harar City, Eastern Ethiopia
title_full Landfill Site Selection Using GIS Based Multicriteria Evaluation Technique in Harar City, Eastern Ethiopia
title_fullStr Landfill Site Selection Using GIS Based Multicriteria Evaluation Technique in Harar City, Eastern Ethiopia
title_full_unstemmed Landfill Site Selection Using GIS Based Multicriteria Evaluation Technique in Harar City, Eastern Ethiopia
title_short Landfill Site Selection Using GIS Based Multicriteria Evaluation Technique in Harar City, Eastern Ethiopia
title_sort landfill site selection using gis based multicriteria evaluation technique in harar city, eastern ethiopia
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8552383/
https://www.ncbi.nlm.nih.gov/pubmed/34720587
http://dx.doi.org/10.1177/11786302211053174
work_keys_str_mv AT asefaelsaimati landfillsiteselectionusinggisbasedmulticriteriaevaluationtechniqueinhararcityeasternethiopia
AT damtewyohannestefera landfillsiteselectionusinggisbasedmulticriteriaevaluationtechniqueinhararcityeasternethiopia
AT barasakefelegnbayu landfillsiteselectionusinggisbasedmulticriteriaevaluationtechniqueinhararcityeasternethiopia