Domestic greywater treatment using electrocoagulation-electrooxidation process: optimisation and experimental approaches.

It was also found that the P-value was less than 0.0001 for all four responses, confirming that the model was correct and highly significant. The results shown in Table 4 proved that the developed quadratic model was statistically significant as it has 99% confidence and a p-value of 0.0001 for removing all modelled pollutant parameters.

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