Diesel Degradation in Soil by Fenton Process
نویسندگان
چکیده
Este trabalho descreve a utilização do processo Fenton para degradação de diesel em solo e destaca aspectos comuns em situações reais de contaminação que podem afetar a eficiência da remediação. Foi observado que a maior parte dos hidrocarbonetos presentes no diesel com menos de 14 carbonos foi perdida por volatilização antes da remediação. Em solo franco, cerca de 80% do diesel foi degradado enquanto que em solo franco-argiloso a degradação foi inferior a 20%. Adições múltiplas de H 2 O 2 proporcionaram degradação de até 80% do diesel, enquanto que com adição única a degradação foi inferior a 14%. A adição de ferro solúvel foi essencial para obtenção de altas porcentagens de degradação. Não foi observado aumento significativo (t-test; P = 0.05) na degradação do diesel quando foram utilizadas dosagens de H 2 O 2 entre 0,09 e 0,36 g g. Além disso, a alta dosagem de H 2 O 2 (0,36 g g) degradou 87% da matéria orgânica originalmente presente no solo.
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