International Journal of Photoenergy / 2012 / Article / Tab 5

Research Article

Photo-Fenton and Fenton Oxidation of Recalcitrant Industrial Wastewater Using Nanoscale Zero-Valent Iron

Table 5

Results of statistical analyses of independent variables.

Dark-FentonPhoto-Fenton
COD reductionTOC reductionCOD reductionTOC reduction
TermEffect Effect Effect Effect

Constant0.000.000.000
H2O2 : COD Ratio17.30.0112.40.020.90.916.80.07
H2O2 : nZVI Ratio−11.00.02−12.00.02−5.00.570.00.99
Doses6.80.043.30.12−0.70.943.00.24
H2O2 : COD Ratio * H2O2 :  nZVI Ratio−9.30.02−8.40.03−5.70.520.90.68
H2O2 : COD Ratio * Dose7.80.035.20.08−6.80.460.00.99
H2O2 : nZVI Ratio * Dose−5.80.05−1.60.40−4.90.581.20.57
H2O2 : COD Ratio * H2O2 : nZVI Ratio*Dose−8.00.02−5.30.07−5.70.52−1.80.43
Ct Pt0.070.010.910.39

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