文献类型：期刊文献

英文题名：Biosorption and biodegradation of bisphenol A in an activated sludge system

作者：Gu, Yong[1];Sun, Xianbo[1];Liu, Yongdi[1]

机构：[1]E China Univ Sci & Technol, Sch Resource & Environm Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：42

期号：5

起止页码：4289

外文期刊名：RESEARCH ON CHEMICAL INTERMEDIATES

收录：;EI(收录号：20162502526401);WOS:【SCI-EXPANDED(收录号:WOS:000373617700021)】；

语种：英文

外文关键词：Activated sludge; Bisphenol A; FBR method; Specific biodegradation rate; Specific biosorption rate

摘要：Research on biosorption and biodegradation of bisphenol A (BPA) in the environment is crucial for pollutant remediation. In this study, the specific biosorption rate (q (bd)) and specific biodegradation rate (q (bio)) of BPA in an activated sludge system with different parameters such as initial BPA concentration, pH, heavy metal and other organic carbon sources were investigated. The experimental results showed that biodegradation of BPA in the concentration range of 10-100 mg/L fitted a zero-order reaction. Kinetic parameters q (bd) and q (bio) of at various pH values of 6.0, 7.0, 8.0 and 9.0 were 1.20, 1.10, 1.08 and 0.54, 0.57, 0.62, 0.16, 0.74 day(-1), respectively. High pH greatly inhibited both biosorption and biodegradation of BPA. Kinetic parameters q (bd) and q (bio) at various concentrations of Cu(2+)of 0, 10 and 50 mg/L were 1.10, 1.06, 0.36 and 0.57, 0.36, 0.23 day(-1), respectively. When Cu2+ = 10 mg/L, the inhibition of biodegradation was larger than biosorption. Otherwise, when Cu2+ = 50 mg/L, the inhibition of biosorption was larger than biodegradation. Meanwhile, the toxicity of Cu2+ was reduced by chelant EDTA because of less free Cu2+. Glucose significantly accelerated the degradation of BPA, while p-hydroxybenzaldehyde did not.