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Beryani, Ali, Pardakhti, Alireza, Ardestani, Mojtaba, Zahed, Mohammad Ali. (1396). Benzene and MTBE removal by Fenton’s process using stabilized Nano Zero-Valent Iron particles. , 4(2), 343-348. doi: 10.22126/arww.2017.788
Ali Beryani; Alireza Pardakhti; Mojtaba Ardestani; Mohammad Ali Zahed. "Benzene and MTBE removal by Fenton’s process using stabilized Nano Zero-Valent Iron particles". , 4, 2, 1396, 343-348. doi: 10.22126/arww.2017.788
Beryani, Ali, Pardakhti, Alireza, Ardestani, Mojtaba, Zahed, Mohammad Ali. (1396). 'Benzene and MTBE removal by Fenton’s process using stabilized Nano Zero-Valent Iron particles', , 4(2), pp. 343-348. doi: 10.22126/arww.2017.788
Beryani, Ali, Pardakhti, Alireza, Ardestani, Mojtaba, Zahed, Mohammad Ali. Benzene and MTBE removal by Fenton’s process using stabilized Nano Zero-Valent Iron particles. , 1396; 4(2): 343-348. doi: 10.22126/arww.2017.788

Benzene and MTBE removal by Fenton’s process using stabilized Nano Zero-Valent Iron particles

Journal of Applied Research in Water and Wastewater
مقاله 2، دوره 4، شماره 2 - شماره پیاپی 8، اسفند 2017، صفحه 343-348    اصل مقاله (1.65 M)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22126/arww.2017.788
نویسندگان
Ali Beryani1؛ Alireza Pardakhti2؛ Mojtaba Ardestani2؛ Mohammad Ali Zahed* 3
1Department of Environmental Engineering, Graduate Faculty of Environment, University of Tehran, Tehran, Iran
2Department of Environmental Engineering, Graduate Faculty of Environment, University of Tehran, Tehran, Iran.
3Faculty of biological sciences, Kharazmi University, Tehran, Iran
چکیده
A bench-scale study was designed for removal of Methyl Tertio Butyl Ether (MTBE) and benzene from south of Tehran groundwater. The experiments were implemented on a one-dimensional soil column with similar chemical and physical conditions of the region. Fenton’s chemical oxidation with stabilized nano zero-valent iron particles (S-NZVI) as catalyst was used. For treatment of groundwater polluted with 2 mg L-1 MTBE and 1 mg L-1 benzene, optimum concentrations of H2O2 and S-NZVI were 1500 and 300 mg L-1, respectively. The optimum concentrations led to 78 % elimination of MTBE and 87 % of benzene. Hazardous by-products (acetone and tertio-butyl alcohol) concentrations were less than 0.1 mg L-1, which were considered to be negligible. The soil permeability was reduced to 30 % after removal process. To increase the system efficiency and reduce the consumption of iron, the reaction environment was acidified down to pH = 3.2 led to removal efficiency of 90 % and 96 % for MTBE and benzene, respectively. The scavengers (ions) reduced the system efficiency up to 15 %. This study indicates that theoretically the MTBE and benzene could be removed from groundwater using Fenton’s chemical oxidation with S-NZVI.
کلیدواژه‌ها
MTBE؛ Benzene؛ Groundwater؛ Fenton؛ Stabilized Nano Zero-valent Iron
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