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Received March 4, 2006
Accepted September 1, 2006
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Photo-oxidation of phenol in aqueous solution: Toxicity of intermediates
Center for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran 1Dept. of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
Korean Journal of Chemical Engineering, January 2007, 24(1), 79-82(4), 10.1007/s11814-007-5013-4
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Abstract
The photodegradation of phenol was studied in a batch reactor system illuminated with a 400 W medium pressure mercury lamp. The effects of parameters such as pH, reaction time and initial phenol concentration on the photolytic degradation and toxicity assay have been studied. The experimental results have shown that lower pH and lower concentration of phenol favor the phenol degradation. The disappearance of phenol in each case approximately obeyed first-order kinetics with the apparent rate constants increasing with decreasing solute concentration. Bioassay tests showed that phenol was toxic to Daphnia magna and so resulted in quite low LC50 values. Comparison of toxicity units (TU) between phenol and effluent toxicity has shown that TU value for effluent was 2.18 times lower than that obtained for phenol. Thus, photolysis is able to decrease the toxicity of by-products formed during the degradation of phenol.
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References
Akbal F, Nuronar A, Environ. Monit. Assess., 83, 295 (2003)
Alnaizy R, Akgerman A, Adv. Environ. Res., 4, 233 (2000)
APHA, AWWA and WEF, Standard methods for the examination of water and wastewater, 19th Ed., Washington (1995)
Bali U, Catalkaya EC, Sengul F, J. Environ. Sci. Health A-Envir., 38, 2259 (2003)
Bolton JR, Carter SR, Homogeneous photodegradation of pollutants in contaminated water: An introduction in aquatic and surface photochemistry, Lewis Publishers, Boca Raton, USA (1994)
Chun H, Yizhong W, Hongxiao T, Chemosphere, 41, 1205 (2000)
Esplugas S, Gimenez J, Contreras S, Pascual E, Rodr guez M, Water Res., 36, 1034 (2002)
Goi A, Trapido M, Tuhkanen T, Adv. Environ. Res., 8, 303 (2004)
Guerra R, Chemosphere, 44, 1737 (2001)
Han WY, Zhu WP, Zhang PY, Zhang Y, Li LS, Catal. Today, 90(3-4), 319 (2004)
Jin H, Yang X, Yin D, Yu H, Mar. Pollut. Bull., 39, 122 (1999)
Lathasreea S, Nageswara RA, SivaSankarb B, Sadasivamb V, Rengarajb K, J. Mol. Catal. A-Chem., 223, 101 (2004)
Lee HJ, Kang DW, Chi J, Lee DH, Korean J. Chem. Eng., 20(3), 503 (2003)
Lee MH, Kim SB, Son SM, Cheon JK, Korean J. Chem. Eng., 23(2), 309 (2006)
Maleki A, Zazoli MA, Eslami A, Al-Haitham J. Sci. Technol., 1, 73 (2005)
Wu C, Liu X, Wei D, Fan J, Wang L, Water Res., 35, 3927 (2001)
Wu Z, Cong Y, Zhou M, Ye Q, Tan T, Korean J. Chem. Eng., 19(5), 866 (2002)
Xiaoli Y, Huixiang S, Dahui W, Korean J. Chem. Eng., 20(4), 679 (2003)
Alnaizy R, Akgerman A, Adv. Environ. Res., 4, 233 (2000)
APHA, AWWA and WEF, Standard methods for the examination of water and wastewater, 19th Ed., Washington (1995)
Bali U, Catalkaya EC, Sengul F, J. Environ. Sci. Health A-Envir., 38, 2259 (2003)
Bolton JR, Carter SR, Homogeneous photodegradation of pollutants in contaminated water: An introduction in aquatic and surface photochemistry, Lewis Publishers, Boca Raton, USA (1994)
Chun H, Yizhong W, Hongxiao T, Chemosphere, 41, 1205 (2000)
Esplugas S, Gimenez J, Contreras S, Pascual E, Rodr guez M, Water Res., 36, 1034 (2002)
Goi A, Trapido M, Tuhkanen T, Adv. Environ. Res., 8, 303 (2004)
Guerra R, Chemosphere, 44, 1737 (2001)
Han WY, Zhu WP, Zhang PY, Zhang Y, Li LS, Catal. Today, 90(3-4), 319 (2004)
Jin H, Yang X, Yin D, Yu H, Mar. Pollut. Bull., 39, 122 (1999)
Lathasreea S, Nageswara RA, SivaSankarb B, Sadasivamb V, Rengarajb K, J. Mol. Catal. A-Chem., 223, 101 (2004)
Lee HJ, Kang DW, Chi J, Lee DH, Korean J. Chem. Eng., 20(3), 503 (2003)
Lee MH, Kim SB, Son SM, Cheon JK, Korean J. Chem. Eng., 23(2), 309 (2006)
Maleki A, Zazoli MA, Eslami A, Al-Haitham J. Sci. Technol., 1, 73 (2005)
Wu C, Liu X, Wei D, Fan J, Wang L, Water Res., 35, 3927 (2001)
Wu Z, Cong Y, Zhou M, Ye Q, Tan T, Korean J. Chem. Eng., 19(5), 866 (2002)
Xiaoli Y, Huixiang S, Dahui W, Korean J. Chem. Eng., 20(4), 679 (2003)
