Pesticide removal in bioaugmented activated sludge using principal component analysis
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2013, Vol 3, Issue 11
Abstract
To meet environmental regulations, it is imperative that industries in Pakistan must use the wastewater treatment system. In this study, the multivariate statistical process control such as Principal Component Analysis (PCA) was used to distinguish the variables that likely control the bioaugmented activated sludge treatment process. During experimental investigation, >88% removal of cypermethrin occurred in short retention time of 48 hours at 30 C temperature and 8 mg/L dissolved oxygen (DO). No significant effect of pH change was noticed and the pH remains between 7.3-8.8. The experimental data when subjected to PCA, indicate that total cypermethrin concentration, organic load as COD and retention time were highly correlated and emerged as variables controlling the first component, whereas pH, DO and temperature governed the second component. The third component repeated the trend exhibited by the first two components. These findings would effectively be applied for the treatment of toxic organics.
Authors and Affiliations
Seema Jilani, Muhammad Altaf Khan
Keywords
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