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  • Title: [Sorption behavior of bisphenol A on anaerobic sludge].
    Author: Zhao JM, Li YM, Zhou Q, Zhang CJ, Zeng QL.
    Journal: Huan Jing Ke Xue; 2008 Jun; 29(6):1681-6. PubMed ID: 18763523.
    Abstract:
    Batch experiments were conducted to investigate the sorption behavior of bisphenol A (BPA) with low concentration on anaerobic sludge. The autoclaved inactivated sludge was used to minimize the influence of degradation of activated sludge. The results showed that the sorption of BPA on anaerobic sludge was a quick process. Anaerobic sludge had achieved 89.1% of the maximum sorption capacity at 15 min. The sorption isotherms of BPA were fitted well by Freundlich and linear sorption models. The sorption coefficients normalized by organic carbon contents were in the range of 665-878 at 10-30 degrees C. MLSS had significant effect on the sorption behavior. With the increase in MLSS, the sorption removal efficiency increased. Through the determination of thermodynamics parameters of BPA, it can be concluded that the sorption of BPA on the anaerobic sludge was mainly a physical process and partitioning between the water and sludge phases played a dominant role. Desorption tests showed that BPA sorption on anaerobic sludge was partially reversible.
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