J. Sci. Technol. Environ. Inform. | Volume 09, Issue 01, 639-648| https://doi.org/10.18801/jstei.090120.65
Article type: Research article, Article received: 28.04.2020; Revised: 16.05.2020; Date of Publication: 30 May 2020
Article type: Research article, Article received: 28.04.2020; Revised: 16.05.2020; Date of Publication: 30 May 2020
Assessment of water quality of a tributary canal of Chittagong city using water quality index
Mst. Farzana Rahman Zuthi, Rajon Dey and Swagatom Dasgupta
Department of Civil Engineering, Chittagong University of Engineering and Technology (CUET), Chittagong – 4349, Bangladesh.
✉ Corresponding author: fzuthi@yahoo.com (Zuthi M.F.R).
Department of Civil Engineering, Chittagong University of Engineering and Technology (CUET), Chittagong – 4349, Bangladesh.
✉ Corresponding author: fzuthi@yahoo.com (Zuthi M.F.R).
Abstract
Water quality of a tributary canal falling into Karnafully River estuary of Chittagong, the port city of Bangladesh, has been assessed in the study. Water Quality Index (NSF-WQI) method of the National Sanitation Foundation of the United States of America was used for the assessment of the overall water quality of the canal flowing through the port city. A modified equation of water quality index (Mod-WQI) using Expert Choice (EC) software based on the Analytic Hierarchy Process (AHP) has also been proposed to effectively address the effects of different localized phenomena on the water quality of the canal. Besides experimental investigation, a physical and socio-economic survey has been performed to identify the usage and possible sources of pollution of the canal water. The survey identifies that the canal water has been conventionally used for irrigation, fishing, recreation etc. by the local community of the study area. However, the canal receives various untreated industrial toxic wastes as well as municipal wastes. The results of the study indicate that the quality of the canal water is bad according to NSF-WQI while that is of medium quality based on Mod-WQI. Therefore, it is recommended that the water of the canal, with its current quality, should not be used for irrigation, fishing, or other intended purposes. Industrial effluent must be treated before its disposal into the canal to sustain an ecological balance in the canal as well as in the river.
Key Words: Water Quality, Tributary Canal, Water Quality Index, Analytical Hierarchy Process (AHP) and Expert Choice (EC)
Water quality of a tributary canal falling into Karnafully River estuary of Chittagong, the port city of Bangladesh, has been assessed in the study. Water Quality Index (NSF-WQI) method of the National Sanitation Foundation of the United States of America was used for the assessment of the overall water quality of the canal flowing through the port city. A modified equation of water quality index (Mod-WQI) using Expert Choice (EC) software based on the Analytic Hierarchy Process (AHP) has also been proposed to effectively address the effects of different localized phenomena on the water quality of the canal. Besides experimental investigation, a physical and socio-economic survey has been performed to identify the usage and possible sources of pollution of the canal water. The survey identifies that the canal water has been conventionally used for irrigation, fishing, recreation etc. by the local community of the study area. However, the canal receives various untreated industrial toxic wastes as well as municipal wastes. The results of the study indicate that the quality of the canal water is bad according to NSF-WQI while that is of medium quality based on Mod-WQI. Therefore, it is recommended that the water of the canal, with its current quality, should not be used for irrigation, fishing, or other intended purposes. Industrial effluent must be treated before its disposal into the canal to sustain an ecological balance in the canal as well as in the river.
Key Words: Water Quality, Tributary Canal, Water Quality Index, Analytical Hierarchy Process (AHP) and Expert Choice (EC)
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Article Citations
MLA
Zuthi, M. F. R. et al. “Assessment of water quality of a tributary canal of Chittagong city using water quality index”. Journal of Science, Technology and Environment Informatics 09(01), (2020):639-648.
APA
Zuthi, M. F. R., Dey, R. and Dasgupta, S. (2020). Assessment of water quality of a tributary canal of Chittagong city using water quality index. Journal of Science, Technology and Environment Informatics, 09(01), 639-648.
Chicago
Zuthi, M. F. R., Dey, R. and Dasgupta, S. “Assessment of water quality of a tributary canal of Chittagong city using water quality index”. Journal of Science, Technology and Environment Informatics 09(01), (2020): 639-648.
Harvard
Zuthi, M. F. R., Dey, R., and Dasgupta, S. 2020. Assessment of water quality of a tributary canal of Chittagong city using water quality index. Journal of Science, Technology and Environment Informatics, 09(01), pp. 639-648.
Vancouver
Zuthi, MFR, Dey, R, and Dasgupta, S. Assessment of water quality of a tributary canal of Chittagong city using water quality index. Journal of Science, Technology and Environment Informatics. 2020 May 09(01): 639-648.
Zuthi, M. F. R. et al. “Assessment of water quality of a tributary canal of Chittagong city using water quality index”. Journal of Science, Technology and Environment Informatics 09(01), (2020):639-648.
APA
Zuthi, M. F. R., Dey, R. and Dasgupta, S. (2020). Assessment of water quality of a tributary canal of Chittagong city using water quality index. Journal of Science, Technology and Environment Informatics, 09(01), 639-648.
Chicago
Zuthi, M. F. R., Dey, R. and Dasgupta, S. “Assessment of water quality of a tributary canal of Chittagong city using water quality index”. Journal of Science, Technology and Environment Informatics 09(01), (2020): 639-648.
Harvard
Zuthi, M. F. R., Dey, R., and Dasgupta, S. 2020. Assessment of water quality of a tributary canal of Chittagong city using water quality index. Journal of Science, Technology and Environment Informatics, 09(01), pp. 639-648.
Vancouver
Zuthi, MFR, Dey, R, and Dasgupta, S. Assessment of water quality of a tributary canal of Chittagong city using water quality index. Journal of Science, Technology and Environment Informatics. 2020 May 09(01): 639-648.
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