Resumen

GILPAVAS, Edison; MEDINA, José; DOBROSZ-GOMEZ, Izabela  y  GOMEZ, Miguel-Ángel. Optimization of the Operating Cost for the Electrochemical-Oxidation Process in a Water Treatment Plant Using Response Surface Statistical Analysis. Inf. tecnol. [online]. 2016, vol.27, n.4, pp.73-82. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642016000400008.

The statistical optimization of the implementation and operational costs of an electrochemical-oxidation process for treatment of wastewater containing dye Yellow 23 was done. The aim was to optimize the operational parameters for the current density, conductivity, and area of electrodes per unit of volume in order to minimize the net present value (NPV) of the operation while maintaining a defined quality for the treated wastewater. To achieve this, the response surface methodology coupled to the Box-Behnken statistical design was used. The optimal conditions found were: a relationship of treated wastewater volume per area of electrodes of 9.076 mL/cm², conductivity 4000 μS/cm, and current density 20 mA/cm². At optimal conditions, the NPV for a 10 year operation is 998636 USD, which corresponds to a cost of 0.68USD/m³ of treated water.

Palabras clave : electrochemical; response surface methodology; optimization; wastewater.

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