Volume No. 7 Issue No.: 3 Page No.: 1294-1304 Jan. - Mar.2013

 

STATISTICAL ANALYSIS TO IDENTIFY THE MAIN PARAMETERS TO THE WASTEWATER QUALITY INDEX OF CETP : A CASE STUDY AT VAPI, GUJARAT, INDIA

 

Shah Abhishek* and Khambete A. K.

Department of Civil Engineering, SVNIT, Surat (INDIA)

 

Received on : August 25, 2012

 

ABSTRACT

 

The Wastewater Quality Index (WWQI) for wastewater of Common Effluent Treatment Plant (CETP) was found considering all the parameters described by Central Pollution Control Board (CPCB). CCME (Canadian Council for Management for Environment) method was used for the development of WWQI. Initially 23 parameters were analysed. But the values of some parameters were very low with respect to their prescribed limits and few parameters were found totally absent during the analysis. Hence, these parameters were omitted and WWQI was developed with 16 parameters. Further, with the help of software called SPSS correlation between WWQI and different parameters of wastewater was found out. From this analysis, the parameters significantly affecting WWQI were determined and a regression equation was developed considering these parameters only using SPSS software. Again, WWQI was found out with the help of regression equation. At the last results from both CCME method and regression equation were compared.

 

Keywords : Wastewater Quality Index (WWQI), Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD), Total Dissolved Solids (TDS), SPSS, Canadian Council for Ministry for Environment (CCME)

 

 

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