Journal
APPLIED WATER SCIENCE
Volume 11, Issue 12, Pages -Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s13201-021-01526-x
Keywords
Wastewater treatment; Coagulation-flocculation; Response surface methodology (RSM); Analysis of variance (ANOVA); Optimization
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Funding
- School of Chemical and Metallurgical Engineering of the University of the Witwatersrand
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In this study, a wastewater treatment program was developed and optimized using central composite face design (CCFD) and response surface methodology (RSM) to achieve optimal removal efficiencies of 93.3% for turbidity and 23.2% for TDS under the optimal conditions for coagulant and flocculant dosage.
In this study, a wastewater treatment program was developed and optimized for the treatment of sewage wastewater. Central composite face design (CCFD) and response surface methodology (RSM) were utilized to develop the experimental design and to establish the relationship between the independent variables (coagulant and flocculant dosage) and responses (turbidity and total dissolved solids removal). Statistical analysis showed that the developed response models were accurate. Optimal removal efficiencies of 93.3% and 23.2% for turbidity and TDS, respectively, were obtained under the optimal conditions for coagulant (120.9 ppm of U6750) and flocculant (125 ppm of Floc887) dosage. This showed that the developed treatment using the coagulant, U6750 and flocculant, Floc887 improved the physical characteristics of the wastewater.
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