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/Author (Ali, Noralisya and Yeoh, Chee and Lau, Seng and Tay, Meng)
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/Title ({An enhanced treatment efficiency for diluted palm oil mill effluent using a photo-electro-fenton hybrid system})
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/Subject (Photocatalysis, electrolysis and Fenton process are three important advanced oxidation processes \(AOPs\) which produce hydroxyl radical in order to degrade organic matter in wastewater within 4-6 hours under ambient conditions. A photocatalysis, electrolysis and Fenton \(photo-electro-Fenton\) process hybrid system has been carried out to treat the diluted palm oil mill effluent \(POME\) in this study. An electrolytic cell was set up with a stainless steel anode and a platinum wire cathode with the applied cell voltage of 1.5 V. The diluted POME was then treated in the cell with the mixture of titanium oxide as the photocatalyst, sodium sulfate solution as the electrolyte, hydrogen peroxide and iron sulfate as the Fenton reagents. The effects on the duration, pH, concentration of TiO 2 and different light conditions on the removal efficiency of the chemical oxygen demand \( COD \) of the diluted POME were studied. The optimal conditions for the photo-electro-Fenton hybrid system were found to be 4 hr contact time at pH 4 with 60 mg/L TiO 2 under sunlight. With such conditions, the COD removal efficiency was able to achieve 97 {\\%}. On the other hand, the photo-electro-Fenton hybrid system gave the highest COD removal efficiency, compared to the electro-Fenton hybrid system, Fenton and photocatalyst, respectively.)
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{An enhanced treatment efficiency for diluted palm oil mill effluent using a photo-electro-fenton hybrid system}
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Noralisya Ali
Chee Yeoh
Seng Lau
Meng Tay
Photocatalysis, electrolysis and Fenton process are three important advanced oxidation processes (AOPs) which produce hydroxyl radical in order to degrade organic matter in wastewater within 4-6 hours under ambient conditions. A photocatalysis, electrolysis and Fenton (photo-electro-Fenton) process hybrid system has been carried out to treat the diluted palm oil mill effluent (POME) in this study. An electrolytic cell was set up with a stainless steel anode and a platinum wire cathode with the applied cell voltage of 1.5 V. The diluted POME was then treated in the cell with the mixture of titanium oxide as the photocatalyst, sodium sulfate solution as the electrolyte, hydrogen peroxide and iron sulfate as the Fenton reagents. The effects on the duration, pH, concentration of TiO 2 and different light conditions on the removal efficiency of the chemical oxygen demand ( COD ) of the diluted POME were studied. The optimal conditions for the photo-electro-Fenton hybrid system were found to be 4 hr contact time at pH 4 with 60 mg/L TiO 2 under sunlight. With such conditions, the COD removal efficiency was able to achieve 97 {\%}. On the other hand, the photo-electro-Fenton hybrid system gave the highest COD removal efficiency, compared to the electro-Fenton hybrid system, Fenton and photocatalyst, respectively.
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