Research Article
Chemical Recycling of Expanded Polystyrene Waste: Synthesis of Novel Functional Polystyrene-Hydrazone Surface for Phenol Removal
Table 3
ANOVA and estimated regression coefficients for % adsorption of phenol on PSH surface.
| | Source | Sum of Squares | Df | Mean Square | -Ratio | -Value | Regression coefficient |
| | Constant | — | — | — | — | —
| −47.503 | | A: amount | 36.80 | 1 | 36.80 | 1140.95 | 0.0001 | 0.077 | | B: con | 129.766 | 1 | 129.766 | 4022.40 | 0 | −0.779 | | C: pH | 9086.0 | 1 | 9086.0 | 281641.55 | 0 | 39.792 | | D: time | 1.8432 | 1 | 1.8432 | 57.13 | 0.0048 | 0.279 | | AA | 0.279577 | 1 | 0.279577 | 8.67 | 0.0603 | −0.001 | | AB | 1.89225 | 1 | 1.89225 | 58.65 | 0.0046 | 0.001 | | AC | 46.3685 | 1 | 46.3685 | 1437.30 | 0 | −0.015 | | AD | 25.664 | 1 | 25.664 | 795.52 | 0.0001 | −0.001 | | BB | 11.682 | 1 | 111.682 | 3461.84 | 0 | 0.013 | | BC | 18.9728 | 1 | 18.9728 | 588.11 | 0.0002 | −0.019 | | BD | 41.7385 | 1 | 41.7385 | 1293.78 | 0 | −0.003 | | CC | 2963.67 | 1 | 2963.67 | 91865.74 | 0 | −2.797 | | CD | 73.8113 | 1 | 73.8113 | 2287.95 | 0 | 0.011 | | DD | 135.706 | 1 | 135.706 | 4206.53 | 0 | −0.001 |
| | Total error | 0.0967826 | 3 | 0.0322609 | — | — | — |
| Total
(corr.) | 15118.0 | 17 | — | — | — | — |
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