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  • Title: Molecularly imprinted polymer microspheres enhanced biodegradation of bisphenol A by acclimated activated sludge.
    Author: Xie YT, Li HB, Wang L, Liu Q, Shi Y, Zheng HY, Zhang M, Wu YT, Lu B.
    Journal: Water Res; 2011 Jan; 45(3):1189-98. PubMed ID: 21131017.
    Abstract:
    The impacts of bisphenol A- imprinted polymeric microspheres (MIPMs) on the biodegradation of bisphenol A by acclimated activated sludge were studied. Due to the selective adsorption of MIPMs to bisphenol A (BPA) and its analogues, addition of MIPMs to activated sludge increased levels of BPA and its metabolites, which were also the substrates of biodegradation. Higher substrates (BPA and its metabolites) level promoted biodegradation efficiencies of activated sludge via accelerating removal speed of BPA and its metabolites, increasing degradation rate and decreasing half-lives of biodegradation. The enhancement of MIPMs in degradation efficiencies was more significant in environmental water containing low-level of pollutants, and water containing interferences such as heavy metals and humic acid. Furthermore, MIPMs were more suitable than non-selective sorbents such as active carbon to be used as enhancer for BPA biodegradation. MIPMs combined with activated sludge are simple, effective, environmental-friendly processes to biodegrade low-level pollutants in environmental water.
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