Electro-oxidation of pistachio processing wastewater using Ti/Pt mesh-type anodes in batch system |
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| Authors: | Baybars Ali Fil Recep Boncukcuoğlu Alper Erdem Yılmaz |
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| Affiliation: | 1. Engineering Faculty, Department of Environmental Engineering, Balikesir University, Balikesir, Turkey;2. Engineering Faculty, Department of Environmental Engineering, İstanbul University, İstanbul, Turkey;3. Engineering Faculty, Department of Environmental Engineering, Ataturk University, Erzurum, Turkey |
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| Abstract: | In this study, the treatment of pistachio processing wastewater (PPW) by electro-oxidation method was investigated. Ti/Pt-plated electrodes were used for the anode material, and stainless steel electrodes were used for cathode material. Experimental studies were carried out in batch mode. Stirring speed, supporting electrolyte species and concentration, initial pH value, current density, temperature and dilution ratio were selected as experimental parameters effecting removal efficiency. In Ti/Pt electrode experimental studies on the optimum conditions, chemical oxygen demand (COD), total organic carbon (TOC) and total phenols (TP) removal efficiencies were obtained, respectively, as 99.98%, 70.74% and 100%, and energy consumption value was obtained as 297.5 kW-h/m3 (12.39 kW-h/kg COD, 51.29 kW-h/kg TOC and 64.68 kW-h/kg TP). As a result of the experimental studies, the PPW can be treated by electro-oxidation. Given the results of removal efficiency and energy consumption values, it was concluded the electro-oxidation using Ti/Pt anode very appropriate treatment of PPW. |
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| Keywords: | COD removal electro-oxidation supporting electrolyte Ti/Pt anode TOC removal TP removal |
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