Table 5 Statistical summary of RSM model fit indicators for C/C₀ responses of Cd, Cu, Ni, and Zn.

From: Simulation and optimization of copper, nickel, cadmium, and zinc removal from industrial wastewater using Aspen adsorption and RSM

Response 1: C/C0(Cd)

Response 2: C/C0(Cu)

Response 3: C/C0(Ni)

Response 4: C/C0(Zn)

Std. Dev.

0.0278

Std. Dev.

0.0259

Std. Dev.

0.0278

Std. Dev.

0.0278

Mean

0.7900

Mean

0.7985

Mean

0.7942

Mean

0.7900

C.V. %

3.52

C.V. %

3.25

C.V. %

3.50

C.V. %

3.52

0.9941

0.9951

0.9939

0.9941

Adjusted R²

0.9939

Adjusted R²

0.9949

Adjusted R²

0.9937

Adjusted R²

0.9939

Predicted R²

0.9937

Predicted R²

0.9947

Predicted R²

0.9935

Predicted R²

0.9937

Adeq Precision

172.3322

Adeq Precision

186.5503

Adeq Precision

172.5037

Adeq Precision

172.3247