title: Electrochemical wastewater treatment directly powered by photovoltaic panels: electrooxidation of a dye-containing wastewater.
abstract: Electrochemical technologies have proved to be useful for the treatment of wastewater, but to enhance their green characteristics it seems interesting to use a green electric energy such as that provided by photovoltaic (PV) cells, which are actually under active research to decrease the economic cost of solar kW. The aim of this work is to demonstrate the feasibility and utility of using an electrooxidation system directly powered by a photovoltaic array for the treatment of a wastewater. The experimental system used was an industrial electrochemical filter press reactor and a 40-module PV array. The influence on the degradation of a dye-containing solution (Remazol RB 133) of different experimental parameters such as the PV array and electrochemical reactor configurations has been studied. It has been demonstrated that the electrical configuration of the PV array has a strong influence on the optimal use of the electric energy generated. The optimum PV array configuration changes with the intensity of the solar irradiation, the conductivity of the solution, and the concentration of pollutant in the wastewater. A useful and effective methodology to adjust the EO-PV system operation conditions to the wastewater treatment is proposed.
authors.affiliation: Grupo de Electroquimica Aplicada y Electrocatalisis, Departamento de Quimica Fisica, Instituto Universitario de Electroquimica, Universidad de Alicante, Alicante 03080, Spain.
authors.forename: David
authors.initials: D
authors.lastname: Valero
authors.forename: Juan M
authors.initials: JM
authors.lastname: Ortiz
authors.forename: Eduardo
authors.initials: E
authors.lastname: Expósito
authors.forename: Vicente
authors.initials: V
authors.lastname: Montiel
authors.forename: Antonio
authors.initials: A
authors.lastname: Aldaz
mesh_terms: D002412:Cations; D002621:Chemistry / Q000379:methods; D004396:Coloring Agents / Q000737:chemistry*; D004553:Electric Conductivity; D004563:Electrochemistry / Q000379:methods*; D004736:Energy-Generating Resources; D006863:Hydrogen-Ion Concentration; D010777:Photochemistry / Q000379:methods; D013696:Temperature; D013997:Time Factors; D014874:Water Pollutants, Chemical / Q000032:analysis*; D018508:Water Purification / Q000379:methods*
chemical_list: D002412:Cations; D004396:Coloring Agents; D014874:Water Pollutants, Chemical