The Application of Response Surface Methodology in the Study of Photodegraded Industrial Dairy Effluents by the Photo-Fenton Process: Optimization and Economic Viability

<table class="table-group" id="tab6"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr class="thead"><td align="left" rowspan="2">Operational steps</td><td align="center" rowspan="2">Variables levels</td><td align="center" colspan="5">Equipment (kW h)</td></tr><tr class="thead"><td align="center">
									Thermostatic bath </td><td align="center">Lamp reactor</td><td align="center">pH meter</td><td align="center">Centrifugal pump</td><td align="center">Metering pump</td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td align="left" rowspan="3">Temperature control </td><td align="center"> </td><td align="center"> </td><td align="center"> </td><td align="center"> </td><td align="center"> </td><td align="center"> </td></tr><tr><td align="center"> </td><td align="center">1.16 </td><td align="center"> </td><td align="center"> </td><td align="center"> </td><td align="center"> </td></tr><tr><td align="center"> </td><td align="center"> </td><td align="center"> </td><td align="center"> </td><td align="center"> </td><td align="center"> </td></tr><tr><td align="left" rowspan="3">Photonic irradiation</td><td align="center">1 </td><td align="center"> </td><td align="center">—</td><td align="center"> </td><td align="center"> </td><td align="center"> </td></tr><tr><td align="center">2 </td><td align="center"> </td><td align="center">0.0138 </td><td align="center"> </td><td align="center"> </td><td align="center"> </td></tr><tr><td align="center">3 </td><td align="center"> </td><td align="center">0.0179 </td><td align="center"> </td><td align="center"> </td><td align="center"> </td></tr><tr><td align="left">Control pH </td><td align="center">—</td><td align="center"> </td><td align="center"> </td><td align="center">0.00083 </td><td align="center"> </td><td align="center"> </td></tr><tr><td align="left">Flow reactor </td><td align="center">—</td><td align="center"> </td><td align="center"> </td><td align="center"> </td><td align="center">0.0138 </td><td align="center"> </td></tr><tr><td align="left">H<sub>2</sub>O<sub>2</sub> dose</td><td align="center">—</td><td align="center"> </td><td align="center"> </td><td align="center"> </td><td align="center"> </td><td align="center">0.00292 </td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Energy consumed in Photo-Fenton reactions data from Box-Behnken experiments at a volume of 3 L of dairy effluent and 60 min of reaction.

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Table 6

Table 6: The Application of Response Surface Methodology in the Study of Photodegraded Industrial Dairy Effluents by the Photo-Fenton Process: Optimization and Economic Viability 

Table 6 | The Application of Response Surface Methodology in the Study of Photodegraded Industrial Dairy Effluents by the Photo-Fenton Process: Optimization and Economic Viability 