TERTIARY TREATMENT OF PALM OIL MILL EFFLUENT USING FENTON OXIDATION
DOI:
https://doi.org/10.11113/mjce.v20.15753Keywords:
Fenton, palm oil mill effluent, solar-Fenton, response surface, coagulation, tertiary treatmentAbstract
A study was conducted to determine the feasibility of Fenton oxidation process in treating biologically treated palm oil mill effluent (BT-POME). Two types of Fenton processes were evaluated, namely ambient-Fenton and solar-Fenton. Both were conducted in batch mode at laboratory scale and the efficiency of the processes was assessed based on COD and color removal. The mechanism of removal in the solar-Fenton process was also explored. Both processes were found to be efficient in treating the wastewater. The highest removals of COD and color for ambient-Fenton were 75.2% and 92.4%, respectively. The COD and color removal of 82.4%, and 95.1%, respectively, were achieved by solar-Fenton. The solar-Fenton removal was mainly through oxidation process. Precipitation and coagulation of iron also contributed to the removal of COD and color but at a lesser extent. Enhancement of color removal by the coagulation process is mainly through elimination of the remaining iron rather than removal of the organics. The role of iron and hydrogen peroxide in ambient- and solar-Fenton was statistically evaluated and discussed.References
Ahmad, A.L. Ismail., S.. and Bathia, S. (2005) Membrane treatment for palm oil mill effluent: effect of transmembrame pressure and crossflow velocity. J. Desalination, 1979: 245-255.
Andreozzi, R., Caprio, V., Insola, A. and Marotta, R. (1999) Advanced Oxidation Processes (AOP) for water purification and recovery. Catalysis Today, 53: 51-59.
Aris, A. (2004) Fenton's Reaction System for the Treatment of Textile Dyeing Wastewater. Ph.D. Thesis, University of Manchester Institute Science and Technology, Manchester.
Englehardt, J.D., Yang, D., Polar, J., Meeroff, D.E., Legrenzi, Y., and Mognol, J. (2006) Options for Managing Municipal Landfill Leachate: Year 1 Development of Iron-mediated Treatment
Processes. Florida Center for Solid and Hazardous Waste Management, Florida.
Farhataziz, P.C and Ross, A.B. (1977) Selected Specific Rates of Reactions of Transients from Water in Aqueous Solution. III. Hydroxyl Radical and Perhydroxyl Radical and their Radical
Ions. U.S. National Bureau and Standards.
Gernjak, W., Fuerhacker, M., Fernandez-Ibanez, P., Blanco, J. and Malato, S. (2006) Solar photoFenton treatment - process parameters and process control. Applied Catalysis B:
Environmental, 64: 121-130.
Gueneva-Boucheva, H. (1999) Degradation of of Polydimethylsiloxane and Dimethylsilanediol in
Water and Soil by Fenton Reagent, M.Sc. Thesis, Michigan State University, Michigan.
Kang, S.F., Liao, C.H. and Chen, M.C. (2002) Pre-oxidation and coagulation of textile wastewater by the Fenton process. Chemosphere, 46: 923-928.
Kang, Y.W. and Hwang, K.Y. (2000) Effects of reaction conditions on the oxidation efficiency in the Fenton process. Water Research, 34: 2786-2790.
Kuo, W.G. (1992) Decolourizing dye wastewater with Fenton's Reagent. Water Research, 26: 881-886.
Legal Research Board (2005) Environmental Quality Act 1974 (Act 127) and Subsidiary Legislation. International Law Book Services, 307 pp. 307.
Legrini, O., Oliveros, E., and Braun, A.M. (1993) Photochemical processes for water treatment. Chemical Review, 93: 671-698.
Lin, S.H. and Lo, C.C. (1997) Fenton process for treatment of desizing wastewater. Water
Research, 31: 2050-2056.
Perez, M.H., Penuela, G., Maldonado, M.I., Malato, O., Fernandez-Ibanez, P., Oller, I., Gernjak, W., and Malato, S. (2006) Degradation of pesticides in water using solar Advanced Oxidation
Processes. Applied Catalysis B: Environmental, 64: 272-281.
Sun, Y. and Pignatello, J.J. (1993) Photochemical reactions involved in the total mineralization of 2,4-D by Fe3+/H2O2/UV. Environmental Science Technology, 27: 304-310.
Sychev, A.Y. and Isak, V.G. (1995) Iron compounds and the mechanisms of the homogeneous catalysis of the activation of O2 and H2O2 and of the oxidation of organic substrates. Russian
Chemical Reviews, 64: 1105-1129.
