title: Scale-up of electrochemical oxidation system for treatment of produced water generated by Brazilian petrochemical industry.
abstract: Scale-up of anodic oxidation system is critical to the practical application of electrochemical treatment in bio-refractory organic wastewater treatment. In this study, the scale-up of electrochemical flow system was investigated by treating petrochemical wastewater using platinized titanium (Ti/Pt) and boron-doped diamond (BDD) anodes. It was demonstrated that flow cell was successfully scaled-up because when it was compared with batch mode (Rocha et al. 2012b), higher performances on organic matter removal were achieved. Under the suitable operating conditions and better anode material, the chemical oxygen demand (COD) of petrochemical wastewater was reduced from 2,746 to 200 mg L(-1) within 5 h with an energy consumption of only 56.2 kWh m(-3) in the scaled-up BDD anode system. These results demonstrate that anode flow system is very promising in practical bio-refractory organic wastewater treatment.
authors.affiliation: Institute of Chemistry, Federal University of Rio Grande do Norte, Lagoa Nova, RN, CEP 59.072-970, Brazil.
authors.forename: Elisama Vieira
authors.initials: EV
authors.lastname: dos Santos
authors.forename: Shirley Feitosa Machado
authors.initials: SF
authors.lastname: Sena
authors.forename: Djalma Ribeiro
authors.initials: DR
authors.lastname: da Silva
authors.forename: Sergio
authors.initials: S
authors.lastname: Ferro
authors.forename: Achille
authors.initials: A
authors.lastname: De Battisti
authors.forename: Carlos A
authors.initials: CA
authors.lastname: Martínez-Huitle
mesh_terms: D057919:Biological Oxygen Demand Analysis; D001895:Boron / Q000737:chemistry; D001938:Brazil; D002617:Chemical Industry; D018130:Diamond / Q000737:chemistry; D004563:Electrochemistry / Q000379:methods; D004566:Electrodes; D019652:Extraction and Processing Industry; D007220:Industrial Waste; D010084:Oxidation-Reduction; D010578:Petroleum; D014865:Waste Disposal, Fluid / Q000379:methods*; D062065:Wastewater / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000737:chemistry*
chemical_list: D001895:Boron; D018130:Diamond; D007220:Industrial Waste; D010578:Petroleum; D062065:Wastewater; D014874:Water Pollutants, Chemical