The Scientific World Journal / 2019 / Article / Tab 4

Research Article

Optimization of the Production Parameters of Composites from Sugarcane Bagasse and Iron Salts for Use in Dye Adsorption

Table 4

Analysis of variance (ANOVA) for quadratic polynomial model for MB adsorption.

FactorsSum of the square (SS)Degree of freedomMedia of the square (MS)Fp

Mass sugarcane bagasse/mass iron salt (x1)4.57414.57412.3780.072156

Mass sugarcane bagasse/mass iron salt (x12)4.79714.79712.9810.069141

Type of mixture sugarcane bagasse/iron salt (x2)9.34819.34825.2990.037328

Type of mixture sugarcane bagasse/iron salt (x22)6.47816.47817.5300.052585

Temperature (°C) (x3)1.56911.5694.2460.175493

Temperature (°C) (x32)1.41611.4163.8320.189397

Interaction (x1) by (x2)1.38511.3853.7490.192465

Interaction (x1) by (x3)1.95311.9535.2850.148253

Interaction (x2) by (x3)7.65117.65120.7050.045059

Lack of fit21.00837.00318.9510.050539

Pure error0.73920.370

Total 59.44014