%A Xue BAI, Hanchang SHI, Zhengfang YE, Qiujin SUN, Qing WANG, Zhongyou WANG %T Degradation of bisphenol A by microorganisms immobilized on polyvinyl alcohol microspheres %0 Journal Article %D 2013 %J Front. Environ. Sci. Eng. %J Frontiers of Environmental Science & Engineering %@ 2095-2201 %R 10.1007/s11783-013-0487-2 %P 844-850 %V 7 %N 6 %U {https://journal.hep.com.cn/fese/EN/10.1007/s11783-013-0487-2 %8 2013-12-01 %X

In this study, microorganisms (named B111) were immobilized on polyvinyl alcohol microspheres prepared by the inverse suspension crosslinked method. The biodegradation of bisphenol A (BPA) and 4-hydroxybenzaldehyde, a degradation product of BPA, by free and immobilized B111 was investigated. The BPA degradation studies were carried out at initial BPA concentrations ranging from 25 to 150 mg·L-1. The affinity constant Ks and maximum degradation rate Rmax were 98.3 mg·L-1 and 19.7 mg·mg-1VSS·d-1 for free B111, as well as 87.2 mg·L-1 and 21.1 mg·mg-1VSS·d-1 for immobilized B111, respectively. 16S rDNA gene sequence analyses confirmed that the dominant genera were Pseudomonas and Brevundimonas for BPA biodegradation in microorganisms B111.