A two-phase partitioning bioreactor system for treating benzene-contaminated soil
2001
Yeom, S.H. | Daugulis, A.J.
Benzene-contaminated topsoil, with an organic content of 42%, was treated by an air volatilization process, followed by a two-phase partitioning bioreactor to allow benzene mineralization. The effects of moisture content and temperature on the adsorption and desorption of benzene on to soil were investigated, and 95% of the benzene (at a concentration equivalent to 3.7 kg benzene m-3 soil-1) was removed at 50 degrees C by air volatilization. When 30 g soil was contaminated with 1000 mg benzene (a concentration 3 times higher), 93% of the benzene was removed by the air volatilization technique, of which 91% was consumed in a two-phase partitioning bioreactor within 2 h.
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