International Journal of Chemical Engineering / 2021 / Article / Tab 4 / Research Article
Single-Stage Microwave-Assisted Coconut-Shell-Based Activated Carbon for Removal of Dichlorodiphenyltrichloroethane (DDT) from Aqueous Solution: Optimization and Batch Studies Table 4 ANOVA result for DDT removal and CSAC’s yield.
Source Sum of squares DF Mean square F value Prob > F DDT removal Model 1170.97 5 234.19 95.23 <0.0001 Significant x 1 982.53 1 982.53 399.51 <0.0001 x 2 95.84 1 95.84 38.97 0.0004 x 1 2 53.24 1 53.24 21.65 0.0023 x 2 2 4.96 1 4.96 2.02 0.1984 x 1 x 2 10.02 1 10.02 4.07 0.0834 Residual 17.22 7 2.46 Lack of fit 10.34 3 3.45 2.01 0.2554 Not significant Pure error 6.87 4 1.72 Cor total 1188.18 12 234.19 95.23 <0.0001 CSAC’s yield Model 767.82 5 153.56 10.14 0.0042 Significant x 1 280.66 1 280.66 18.53 0.0035 x 2 101.42 1 101.42 6.69 0.0361 x 1 2 307.69 1 307.69 20.31 0.0028 x 2 2 146.87 1 146.87 9.69 0.0170 x 1 x 2 43.48 1 43.48 2.87 0.1341 Residual 106.05 7 15.15 Lack of fit 71.65 3 23.88 2.78 0.1744 Not significant Pure error 34.40 4 8.60 Cor total 767.82 5 153.56 10.14 0.0042
