Journal of Industrial and Engineering Chemistry, Vol.20, No.4, 1453-1461, July, 2014
A comparative study on the performance of different advanced oxidation processes (UV/O3/H2O2) treating linear alkyl benzene (LAB) production plant’s wastewater
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A detailed investigation on photooxidation of linear alkyl benzene (LAB) industrial wastewater is
presented in this study. The process analysis was performed by varying four significant independent variables including two numerical factors (initial pH (3-11) and initial H2O2 concentration (0-20 mM)) and two categorical factors (UV irradiation and ozonation). The experiments were conducted based on a central composite design (CCD) and analyzed using response surface methodology (RSM). To assess the process performance, two parameters viz. TCOD removal efficiency and BOD5/COD were measured throughout the experiments. A maximum reduction in TCOD was 58, 53, 51, and 49%, respectively for UV/H2O2/O3, H2O2/O3, UV/O3 and UV/H2O2 processes at the optimum conditions (initial pH of 7, initial H2O2 concentration of 100 mM, and reaction time of 180 min). A considerable increase in BOD5/COD
ratio was obtained in the combined processes (0.46, 0.51, 0.53, and 0.55 for UV/H2O2, UV/O3, H2O2/O3 and UV/H2O2/O3, respectively) compared to the single oxidant process (0.35). The results showed that mineralization of the LAB industrial wastewater in neutral pH is more favored than in acidic and basic pH. Gas chromatography.mass spectrometry (GC-MS) was applied to show the fate of organic compounds. In conclusion, the photooxidation process (UV/H2O2/O3, H2O2/O3, UV/O3 and UV/H2O2) could be an appropriate pretreatment method prior to a biological treatment process.
Keywords:LAB industrial wastewater;Advanced oxidation process (AOP);COD removal efficiency;BOD5/COD;Response surface methodology (RSM)
- Bahtia M, Singh H, J. Biosci., 21, 487 (1996)
- Ghanbarian M, Nabizadeh R, Mahvi AH, Nasseri S, Naddafi K, Iran. J. Environ. Health Sci. Eng., 8, 309 (2011)
- Badawy MI, Ghaly MY, Gad-Allah TA, Desalination, 194(1-3), 166 (2006)
- De AK, Chaudhuri B, Bhattacharjee S, Dutta BK, J. Hazard. Mater. B, 64, 91 (1999)
- Kasiri MB, Khataee AR, Desalination, 270(1-3), 151 (2011)
- Kasprzyk-Hordern B, Ziolek M, Nawrocki J, Appl. Catal. B: Environ., 46(4), 639 (2003)
- AlHamedi FH, Rauf MA, Ashraf SS, Desalination, 239(1-3), 159 (2009)
- Bai CP, Xiong XF, Gong WQ, Feng DX, Xian M, Ge ZX, Xu NA, Desalination, 278(1-3), 84 (2011)
- Yahiat S, Fourcade F, Brosillon S, Amrane A, Desalination, 281, 61 (2011)
- Guettai N, Amar A, Desalination, 185(1-3), 427 (2005)
- Galindo C, Jacques P, Kalt A, J. Photochem. Photobiol. A-Chem., 141, 47 (2001)
- Daneshvar N, Salari D, Khataee AR, J. Photochem. Photobiol. A-Chem., 157, 111 (2003)
- Jung HJ, Hong JS, Suh JK, J. Ind. Eng. Chem., 19(4), 1325 (2013)
- Esplugas S, Gimenez J, Contreras S, Pascual E, Rodriguez M, Water Res., 36, 1034 (2002)
- Hirvonen A, Tuhkanen T, Kalliokoski P, Chemosphere, 32, 1091 (1996)
- De AK, Bhattacharjee S, Dutta BK, Ind. Eng. Chem. Res., 36(9), 3607 (1997)
- Andreozzi R, Caprio V, Insola A, Marotta R, Water Res., 34, 463 (2000)
- Benitez FJ, Beltran-Heredia J, Acero JL, Rubio FJ, J. Chem. Technol. Biotechnol., 76(3), 312 (2001)
- Beltran FJ, Encinar JM, Alonso MA, Ind. Eng. Chem. Res., 37(1), 32 (1998)
- Prengle HW, Mauk CE, American Institute of Chemical Engineers, Symposium, 178, 228 (1987)
- Appelman EH, Jache AW, Muntean JV, Ind. Eng. Chem. Res., 35(4), 1480 (1996)
- Balcioglu IA, Arslan I, Water Sci. Technol., 43, 221 (2001)
- Shu HY, Chang MC, J. Hazard. Mater., 121(1-3), 127 (2005)
- APHA-AWWA-WEF, Standard Methods for the Examination of Water and Wastewater, twentieth ed., American Public Health Association, Washington DC, 1999.
- El-sousy K, Hussen A, Hartani K, El-Aila H, Jordan J. Chem., 2, 97 (2007)
- Konsowa AH, Desalination, 158(1-3), 233 (2003)
- Saritha P, Raj DSS, Aparna C, Laxmi PNV, Himabindu V, Anjaneyulu Y, Water Air Soil Pollut., 200, 169 (2009)
- Bali U, Catalkaya E, Sengul F, J. Hazard. Mater., 114(1-3), 159 (2004)
- Schrank SG, Jose HJ, Moreira RFPM, Schroder HF, Chemosphere, 60, 644 (2005)
- Kosaka K, Yamada H, Shishida K, Echigo S, Minear RA, Tsuno H, Saburo M, Water Res., 35, 3587 (2001)
- Mason RL, Gunst RF, Hess JL, Statistical Design and Analysis of Experiments, Eighth Applications to Engineering and Science, second ed., Wiley, New York, 2003.
- Montgomery DC, Design and Analysis of Experiments, third ed., Wiley, New York, 1991.
- Ghaly MY, Hartel G, Mayer R, Haseneder R, Waste Manage., 21, 41 (2001)
- Amiri S, Water Res., 35, 3706 (2001)
- Maniero MG, Bila DM, Dezotti M, Sci. Total Environ., 407, 105 (2008)
- Polo MS, Utrilla JR, Diaz JDM, Canonica S, Gunten UV, Chemosphere, 68, 1814 (2007)