title: Non-linear modeling using fuzzy principal component regression for Vidyaranyapuram sewage treatment plant, Mysore - India.
abstract: Fuzzy principal component regression (FPCR) is proposed to model the non-linear process of sewage treatment plant (STP) data matrix. The dimension reduction of voluminous data was done by principal component analysis (PCA). The PCA score values were partitioned by fuzzy-c-means (FCM) clustering, and a Takagi-Sugeno-Kang (TSK) fuzzy model was built based on the FCM functions. The FPCR approach was used to predict the reduction in chemical oxygen demand (COD) and biological oxygen demand (BOD) of treated wastewater of Vidyaranyapuram STP with respect to the relations modeled between fuzzy partitioned PCA scores and target output. The designed FPCR model showed the ability to capture the behavior of non-linear processes of STP. The predicted values of reduction in COD and BOD were analyzed by performing the linear regression analysis. The predicted values for COD and BOD reduction showed positive correlation with the observed data.
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 Information Technology, College of Applied Sciences, Sohar-311, Oman.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Imran
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: D057919:Biological Oxygen Demand Analysis; D016000:Cluster Analysis; D017143:Fuzzy Logic; D007194:India; D016014:Linear Models; D008962:Models, Theoretical; D017711:Nonlinear Dynamics; D025341:Principal Component Analysis; D012722:Sewage / Q000737:chemistry*; D064091:Waste Disposal Facilities; D014865:Waste Disposal, Fluid / Q000379:methods*
chemical_list: D012722:Sewage