Correlational Analysis of the Effluent from the San Carlos Biopower, Inc. Wastewater Treatment Plant

Abstract

Wastewater from establishments and industries is closely monitored by the Philippine government using laws and administrative orders that set the standard for wastewater discharge. The wastewater is analyzed for its water quality parameters and compared to the standards set by the said laws. This study aims to focus on the wastewater quality parameters and look into the correlation between them. Wastewater samples collected during the four quarters of 2019 and the first quarter of 2020 from San Carlos Biopower, Inc. were subjected to laboratory tests for quantification. Statistical analysis was also used to calculate the correlation coefficient. The correlation matrix shows that pH, BOD, Oil and Grease, Total Suspended Solids, Nitrate, Phosphate, and COD have significant effects and relationships with each other. Significantly linear relationships found in this study are COD-BOD, DO-O&G, and DO-TSS. Other findings include a positive correlation between pH-PO4, pH-DO, BOD-O&G, BOD-TSS, O&G-OD, TSS-COD, and PO4-COD while the following relationships had a negative correlation: BOD-DO, NO3-PO4, COD-DO.