Application of MCDM in selection of Influential Water Quality Parameter

Authors : Pieusha Saha* and Dr. Mrinmoy Majumdar**

*PhD Scholar of Hydro informatics Engineering (under Civil Engineering Department)-NIT, Agartala

**Associate Professor,(Hydro-Informatics Engineering)CE Department NIT AgartalaDr. Tilottama Chakraborty,Assistant Professor,(Hydro-Informatics Engineering)CE Department NIT Agartala

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Abstract

Supervising water quality is essential to prevent ecological degradation or implement necessary improvements in any watershed. However, studying the determination of water quality is both laborious and expensive. So to reduce the time and cost of such endeavours the present investigation tried to identify the most significant parameter concerning the use of the sample water. Two MCDM methods AHP and ANP have been applied to achieve the present objective. Nine parameters such as Dissolved Oxygen (DO), Chemical Oxygen Demand (COD), Phosphate (PO), Total Dissolved Solids (TDS), Chloride, Nitrate Nitrogen(NO 3 -N), Ammonia Nitrogen (NH 4 -N), Potential of Hydrogen (pH) and temperature (T) have been chosen among the various parameters based on literature review and expert opinion to determine which one will carry the most weights as per the MCDM methods. The findings imply that, among the parameters chosen, the DO has the greatest impact.