Details

Autor(en) / Beteiligte

• Tony, Maha A.
• Purcell, Patrick J.
• Zhao, Yaqian

Titel

Oil refinery wastewater treatment using physicochemical, Fenton and Photo-Fenton oxidation processes

Ist Teil von

• Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, 2012-02, Vol.47 (3), p.435-440

Ort / Verlag

Philadelphia, PA: Taylor & Francis Group

Erscheinungsjahr

2012

Quelle

Taylor & Francis Journals Auto-Holdings Collection

Beschreibungen/Notizen

• The objective of this study was to investigate the application of advanced oxidation processes (AOPs) to the treatment of wastewaters contaminated with hydrocarbon oil. Three different oil-contaminated wastewaters were examined and compared: (i) a 'real' hydrocarbon wastewater collected from an oil refinery (Conoco-Phillips Whitegate refinery, County Cork, Ireland); (ii) a 'real' hydrocarbon wastewater collected from a car-wash facility located at a petroleum filling station; and (iii) a 'synthetic' hydrocarbon wastewater generated by emulsifying diesel oil and water. The AOPs investigated were Fe 2+ /H 2 O 2 (Fenton's reagent), Fe 2+ /H 2 O 2 /UV (Photo-Fenton's reagent) which may be used as an alternative to, or in conjunction with, conventional treatment techniques. Laboratory-scale batch and continuous-flow experiments were undertaken. The photo-Fenton parametric concentrations to maximize COD removal were optimized: pH = 3, H 2 O 2 = 400 mg/L, and Fe 2+ = 40 mg/L. In the case of the oil-refinery wastewater, photo-Fenton treatment achieved approximately 50% COD removal and, when preceded by physicochemical treatment, the percentage removal increased to approximately 75%.