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Iranian Journal of Health and Environment. 2011; 3 (4): 381-388
em Persa | IMEMR | ID: emr-132719

RESUMO

Chlorophenol compounds are used frequently in industries including: petrochemical, producing pesticide and herbicides, producing antimicrobial agents, pharmaceutical and refineries. These compounds can enter the environment through the wastewater industries. This investigation has studied the application of Fenton-like process [Fe[0]/H[2]O[2]] in removal of Parachlorophenol. A laboratory scale study was done on a synthetic wastewater containing Para-chlorophenol. Concentration of 10 mg/L of Para-chlorophenol was prepared then optimal values of affecting parameters such as pH, hydrogen peroxide, and iron powder and detention time in the process for Para-chlorophenol removal were determined. The optimum pH, molar ratio of hydrogen peroxide on Para-chlorophenol, hydrogen peroxide on iron powder and time were 4, 18.8, 0.4 and 5 minutes respectively. The results showed that removal efficiency in optimal conditions for concentrations of 10, 50 and 100 mg/L are 93.9, 94.4 and 94.3 respectively. The study showed the rate of mineralization of Para-chlorophenol is not completed. According to the results of this study and high resistance in degradation by biological processes, Fenton like process can be used for conversion Para-chlorophenol resistant compound to other compounds with ability of higher biological degradation and lower toxicity

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