Table 3: ANOVA analysis of CCRD models generated for various dyes.

Sr. numberSourceSum of squaresDfMean square value value, prob >

Reactive yellow 18
1Model15815.3291757.264.210.0175 significant
2: dye conc.3213.3313213.337.700.0196
3: pH3123.7713123.777.490.0210
4: incubation995.521995.522.390.1535 (nonsignificant)
51079.2711079.272.590.1389
690.32190.320.220.6518
740.50140.500.0970.7618
814.52114.520.01510.8267
91986.8911986.096.910.0252
10482.851482.851.160.3074
11Residual4173.3610417.34
12Lack of fit4173.365834.61
13Pure error0.00050.000
14Cor. total19988.6719
  0.8043, adequate precision 7.894

Reactive red 31
1Model6933.169770.352.310.1041 not significant
2: dye conc.1046.1111046.113.140.1069
3: pH1256.9311256.933.770.0809
4: incubation1174.0911174.093.520.0901
5206.451206.450.620.4496
63.3013.309.904E − 0030.9227
725.42125.420.0760.7881
8427.001427.001.280.2842
92527.0212527.027.580.0204
1064.29164.290.190.6699
11Residual3334.5510333.45
12Lack of fit3327.715665.54486.70<0.0001
13Pure error6.8451.372.310.1041
14Cor. total10267.7119
  0.6752, adequate precision 6.482

Reactive red 74
1Model6876.629764.073.060.0483 significant
2: dye conc.282.711282.711.130.3127
3: pH643.521643.522.570.1398
4: incubation1612.5611612.566.450.0294
519.84119.840.0790.7839
6116.281116.280.460.5108
733.78133.780.140.7209
8150.731150.730.600.4555
93845.4013845.4015.380.0029
10549.001549.002.200.1692
11Residual2500.8110250.08
12Lack of fit2473.935494.7992.03<0.0001
13Pure error26.8855.38
14Cor. total9377.4219
  0.6752, adequate precision 5.239

Reactive green 19
1Model9189.4591021.054.520.0137 significant
2: dye conc.873.911873.913.870.0775
3: pH1782.2211782.227.890.0185
4: incubation1614.9911614.997.150.0233
536.68136.680.160.6954
66.5316.530.0290.8683
722.88122.880.100.7568
8291.801291.801.290.2822
94276.3214276.3218.940.0014
10827.471827.473.660.0846
11Residual2258.3510225.83
12Lack of fit2225.275445.0567.270.0001
13Pure error33.0856.62
14Cor. total11447.8019
  0.8027, adequate precision 6.461

Reactive black 8
1Model12726.3491414.043.440.0337 significant
2: dye conc.1426.7811426.783.470.0920
3: pH1408.2011408.203.430.0938
4: incubation1811.2511811.254.410.0621
5165.531165.530.400.5398
631.40131.400.0760.7878
712.78112.780.0310.8635
852.88152.880.130.7272
97153.8817153.8817.410.0019
101211.0111211.012.950.1167
11Residual4108.0210410.80
12Lack of fit4092.245818.45259.38<0.0001
13Pure error15.7853.16
14Cor. total16834.3619
  0.7560, adequate precision 6.410