Municipal solid waste landfill leachate treatment by fenton, photo-fenton and fenton-like processes: Effect of some variables

Journal of Environmental Health Science Engineering

Maryam Bagheri Ardebilian¹  Akbar Eslami²  Zabihollah Yousefi¹  Mohammad Ali Zazouli¹ 

[1] Department of Environmental Health Engineering, Faculty of Health and Health Sciences Research Center, Mazandaran University of Medical Sciences, Sari, Iran;Department of Environmental Health Engineering, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran

关键词: Landfill leachate;    Fenton-like;    Fenton;    Photo-Fenton;    Advanced oxidation processes;   

Others  :  824203
DOI  :  10.1186/1735-2746-9-3

 received in 2012-06-08, accepted in 2012-07-20,  发布年份 2012

【 摘 要 】

Advanced oxidation processes like Fenton and photo-Fenton have been effectively applied to oxidize the persistent organic compounds in solid waste leachate and convert them to unharmful materials and products. However, there are limited data about application of Fenton-like process in leachate treatment. Therefore, this study was designed with the objective of treating municipal landfill leachate by Fenton, Fenton-like and photo–Fenton processes to determine the effect of different variables, by setting up a pilot system. The used leachate was collected from a municipal unsanitary landfill in Qaem-Shahr in the north of Iran. Fenton and Fenton-like processes were conducted by Jar-test method. Photo-Fenton process was performed in a glass photo-reactor. In all processes, H₂O₂ was used as the oxidant. FeSO₄.7H₂O and FeCl₃.6H₂O were used as reagents. All parameters were measured based on standard methods. The results showed that the optimum concentration of H₂O₂ was equal to 5 g/L for the Fenton-like process and 3 g/L for the Fenton and photo-Fenton processes. The optimum ratio of H₂O₂: Fe⁺²/Fe⁺³ were equal to 8:1 in all processes. At optimum conditions, the amount of COD removal was 69.6%, 65.9% and 83.2% in Fenton, Fenton-like and photo–Fenton processes, respectively. In addition, optimum pH were 3, 5 and 3 and the optimum contact time were 150, 90 and 120 minutes, for Fenton, Fenton-like and photo–Fenton processes, respectively. After all processes, the biodegradability (BOD₅/COD ratio) of the treated leachate was increased compared to that of the raw leachate and the highest increase in BOD₅/COD ratio was observed in the photo-Fenton process. The efficiency of the Fenton-like process was overally less than Fenton and photo-Fenton processes, meanwhile the Fenton-like process was at higher pH and did not show problems.

【 授权许可】

   
2012 Zazouli et al.; licensee BioMed Central Ltd.

【 图 表 】

Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Figure 7.

【 参考文献 】

• [1]Neczaj E, Okoniewska E, Kacprzak M: Treatment of landfill leachate by sequencing batch reactor. Desalination 2005, 185:357-362.
• [2]Nabizadeh R, Heidari M, Hassanvand M: Municipal solid waste analysis in Iran. Iran J Health & Environ 2008, 1:9-18.
• [3]Aktas O, Cecen F: Addition of activated carbon to batch activated sludge reactors in the treatment of landfill leachate and domestic wastewater. J Chem Technol Biotechnol 2001, 76:793-802.
• [4]Zazouli MA, Yousefi Z: Removal of heavy metals from solid wastes leachate by coagulation-Flocculation process. J Appl Sci 2008, 8:2142-2147.
• [5]Zazouli MA, Maleki A, Izanloo H: Assessment of raw leachate characteristics and its pretreatment by Lime. Asian Journal of Chemistry 2010, 22:6155-6163.
• [6]Hajipour A, Moghadam N, Nosrati M, Shojasadati SA: Aerobic thermophilic treatment of landfill leachate in a moving-bed biofilm bioreactor. Iran J Environ Health Sci Eng 2011, 8:3-14.
• [7]Lopez A, Pagano M, Volpe A, Claudio Di Pinto A: Fenton’s pre-treatment of mature landfill leachate. Chemosphere 2004, 54:1005-1010.
• [8]Guinea E, Arias C, Cabot PL, Garrido JA, Rodríguez RM, Centellas F, Brillas E: Mineralization of salicylic acid in acidic aqueous medium by electrochemical advanced oxidation processes using platinum and boron-doped diamond as anode and cathodically generated hydrogen peroxide. Water Res 2008, 42:499-511.
• [9]Kishimoto N, Nakagawa T, Asano M, Abe M, Yamada M, Ono Y: Ozonation combined with electrolysis of 1,4-dioxane using a two-compartment electrolytic flow cell with solid electrolyte. Water Res 2008, 42:379-385.
• [10]Morais JL, Zamora PP: Use of advanced oxidation processes to improve the biodegradability of mature landfill leachates. J Hazard Mater 2005, 123:181-186.
• [11]Hermosilla D, Cortijo M, Huang CP: Optimizing the treatment of landfill leachate by conventional Fenton and photo-Fenton processes. Sci Total Environ 2009, 407:3473-3481.
• [12]Primo O, Rivero MJ, Ortiz I: Photo-Fenton process as an efficient alternative to the treatment of landfill leachates. J Hazard Mater 2008, 153:834-842.
• [13]Dobaradaran S, Nabizadeh R, Mahvi AH, Mesdaghinia AR, Naddafi K, Yunesian M, Rastkari N, Nazmara S: Survey on degradation rates of trichloroethylene in aqueous solutions by ultrasound. Iran J Environ Health Sci Eng 2010, 7:307-312.
• [14]Munter R: Advanced oxidation processes – current status and prospects. Proc Estonian Acad Sci Chem 2001, 50:59-80.
• [15]Tarr MA: Chemical Degradation Methods for Wastes and Pollutants, Environmental and Industrial Applications. New York: Marcel Dekker; 2003.
• [16]Esmaeli R, Hassani AH, Eslami A, Moghadam MA, Safari A: DI-(2-Ethylhexyl) Phthalate oxidative degradation by Fenton process in synthetic and real pertochemical wastewater. Iran J Environ Health Sci Eng 2011., 8In Press
• [17]Mousavi SAR, Mahvi AH, Nasseri S, Ghaffari S: Effect of Fenton process (H2O2 / FE2+) on removal of linear alkylbenzene sulfonate (LAS) using centeral composite design and response surface methodology. Iran J Environ Health Sci Eng 2011, 8:111-116.
• [18]Deng Y, Englehardt JD: Treatment of landfill leachate by the Fenton process. Water Res 2006, 40:3683-3694.
• [19]EPA: Advanced Photochemical Oxidation Processes. Washington, DC; Environmental Protection Agency; 1998.
• [20]Renou S, Givaudan JG, Poulain S, Dirassouyan F, Moulin P: Landfill leachate treatment: review and opportunity. J HazardMater 2008, 150:468-493.
• [21]Kim S-M, Geissen S-U, Vogelpohl A: Landfill leachate treatment by a photoassisted fenton reaction. Water Sci Technol 1997, 35:239-248.
• [22]Batarseh ES, Reinhart DR, Daly L: Liquid sodium ferrate and fenton's reagent for treatment of mature landfill leachate. J Environ Eng 2007, 133:1042-1050.
• [23]Zhang H, Choi HJ, Canazo P, Huang C-P: Multivariate approach to the Fenton process for the treatment of landfill leachate. J Hazard Mater 2009, 161:1306-1312.
• [24]Goi A, Veressinina Y, Trapido M: Fenton process for landfill leachate treatment: evaluation of biodegradability and toxicity. J Environ Eng 2010, 136:46-53.
• [25]Farrokhi M, Kouti M, Mousavi GR, Takdastan A: The study on biodegradability enhancement of landfill leachate by fenton oxidation. Iran J Health & Environ 2009, 2:114-123.
• [26]Lau IWC, Wang P, Fang HHP: Organic removal of anaerobically treated leachate by Fenton Coagulation. JEnviron Eng 2001, 127:666-669.
• [27]Lee Y, Lee W: Degradation of trichloroethylene by Fe(II) chelated with cross-linked chitosan in a modified Fenton reaction. J Hazard Mater 2010, 178:187-193.
• [28]Eaton AD, Clesceri LS, Rice EW, Greenberg AE, Franson MAH: Stndard Methods for the Examination of Water and Wastewater. 21st ed. American Public Health Association, American Water Works Association. Washington: Water Environment Federation; 2005.
• [29]Kang YW, Cho M-J, Hwang K-Y: Correction of hydrogen peroxide interference on standard chemical oxygen demand test. Water Res 1999, 33:1247-1251.
• [30]Mohajeri S, Aziz HA, Isa MH, Zahed MA, Adlan MN: Statistical optimization of process parameters for landfill leachate treatment using electro-Fenton technique. J Hazard Mater 2010, 176:749-758.
• [31]Samadi MT, Saghi MH, Rahmani A, Hasanvand J, Rahimi S, Syboney MS: Hamadan landfill leachate treatment by coagulation-flocculation process. Iran J Environ Health Sci Eng 2010, 7:253-258.