| Title: | "Bisphenol A alters volatile fatty acids accumulation during sludge anaerobic fermentation by affecting amino acid metabolism, material transport and carbohydrate-active enzymes" |
| Author(s): | Jiang X; Yan Y; Feng L; Wang F; Guo Y; Zhang X; Zhang Z; |
| Address: | "School of Environmental & Safety Engineering, Changzhou University, Changzhou, Jiangsu Province 213164, China; College of Chemistry and Environment Engineering, Yancheng Teachers University, Yancheng, Jiangsu Province 224002, China. College of Chemistry and Environment Engineering, Yancheng Teachers University, Yancheng, Jiangsu Province 224002, China. Electronic address: yuan2378@163.com. State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China. School of Environmental & Safety Engineering, Changzhou University, Changzhou, Jiangsu Province 213164, China. Shanghai Urban Construction Design & Research Institute (Group) Co., Ltd., 3447 Dongfang Road, Shanghai 200125, China. Shanghai Road and Bridge Group Co., Ltd., 36 Guoke Road, Shanghai 200433, China" |
| DOI: | 10.1016/j.biortech.2020.124588 |
| ISSN/ISBN: | 1873-2976 (Electronic) 0960-8524 (Linking) |
| Abstract: | "Bisphenol A (BPA), a typical persistent organic pollutant in waste activated sludge, was chosen to explore its influence on the accumulation of volatile fatty acids (VFAs), which is an important raw material, during anaerobic fermentation. BPA in the range of 0-200 mg/kg dry sludge was beneficial to VFAs production, from 1564 mg chemical oxygen demand (COD)/L in the control to 2095 mg COD/L with 50 mg/kg BPA; the acetic acid yield was 563 and 1010 mg COD/L with 0 and 50 mg/kg BPA, respectively. The abundance of microorganisms that can consume VFAs was reduced and those responsible for producing VFAs was increased by BPA. Homologous genes of related enzymes in the pathways for amino acid metabolism, fatty acid biosynthesis, ABC transporters and quorum sensing were enhanced in the presence of BPA. The abundance of carbohydrate-active enzymes increased with BPA when compared with the control, benefitting VFAs production" |
| Keywords: | "Amino Acids Anaerobiosis Benzhydryl Compounds Carbohydrates *Fatty Acids, Volatile Fermentation Hydrogen-Ion Concentration Phenols *Sewage Anaerobic fermentation Bisphenol A Metagenome Volatile fatty acids Waste activated sludge;" |
| Notes: | "MedlineJiang, Xiupeng Yan, Yuanyuan Feng, Leiyu Wang, Feng Guo, Yingqing Zhang, Xianzhong Zhang, Zhenguang eng England 2021/01/01 Bioresour Technol. 2021 Mar; 323:124588. doi: 10.1016/j.biortech.2020.124588. Epub 2020 Dec 23" |
