title: Factor analysis and discriminant analysis of wastewater quality in Vidyaranyapuram sewage treatment plant, Mysore, India: a case study.
abstract: Wastewater treatment plant monitoring is an essential part of effective wastewater management. The analysis of eight physico-chemical parameters of untreated wastewater was carried out at Vidyaranyapuram sewage treatment plant, Mysore, India. Factor analysis (FA) was applied to the untreated wastewater data matrix, and pollution was found to be the most contributing factor, explaining 22.31% of the total variance (chloride, biochemical oxygen demand, chemical oxygen demand and total dissolved solids). The second most contributing factor was found to be nitrification which explained 21.11% of the total variance (pH and nitrate), whereas the salinization factor contributed 16.98% of the total variance (total solids and total suspended solids). FA regression scores could not satisfactorily classify the data matrix with respect to the seasonal variations. Discriminant analysis (DA) was used to find the seasonal variations in the data matrix, and the standard mode DA explained 66.6% of total variance by grouping the cases with respect to seasons.
authors.affiliation: Department Of Water and Health - JSS University, S.S. Nagar, Mysore -570 015, Karnataka, India E-mail: ayeshasulthanaa@gmail.com.
authors.forename: Ayesha
authors.initials: A
authors.lastname: Sulthana
authors.affiliation: Department Of Water and Health - JSS University, S.S. Nagar, Mysore -570 015, Karnataka, India E-mail: ayeshasulthanaa@gmail.com.
authors.forename: K C
authors.initials: KC
authors.lastname: Latha
authors.affiliation: Department Of Water and Health - JSS University, S.S. Nagar, Mysore -570 015, Karnataka, India E-mail: ayeshasulthanaa@gmail.com.
authors.forename: Ramya
authors.initials: R
authors.lastname: Rathan
authors.affiliation: Department of Computer Science, Sri Ramakrishna Mission Vidyalaya, Coimbatore -641020, Tamil Nadu, India.
authors.forename: R
authors.initials: R
authors.lastname: Sridhar
authors.affiliation: Department Of Water and Health - JSS University, S.S. Nagar, Mysore -570 015, Karnataka, India E-mail: ayeshasulthanaa@gmail.com.
authors.forename: S
authors.initials: S
authors.lastname: Balasubramanian
mesh_terms: D016002:Discriminant Analysis; D004784:Environmental Monitoring / Q000379:methods*; D007194:India; D012722:Sewage; D014865:Waste Disposal, Fluid / Q000379:methods*; D014873:Water Pollutants
chemical_list: D012722:Sewage; D014873:Water Pollutants