Potential application of solar/photo-fenton process for the pre-treatment of wastewater from dairy industry

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Soc Brasileira Quimica


Dairy wastewater is characterized by frequent episodes of drastic increases of organic content, giving rise to bulking filamentous bacteria and compromising the biological treatment process. This study reports the reduction of organic content of such wastewater by the application of the solar photo-Fenton process. For a wastewater containing 335, 2627 or 5400 mg C L-1 between 90% and 50% of the organic carbon content were removed after 3.5 h irradiation. The results show that the solar photo-Fenton process can be a good alternative for the abatement of organic content of dairy wastewater, especially in cases of organic content fluctuation, allowing an efficient biological treatment.



dairy effluent, organic matter, AOP

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Quimica Nova. Sao Paulo: Soc Brasileira Quimica, v. 30, n. 8, p. 1799-1803, 2007.