文献类型： 外文期刊
作者： Ni, Shou-Qing 1 ; Wang, Zhibin 1 ; Lv, Lu 1 ; Liang, Xueyou 1 ; Ren, Longfei 1 ; Zhou, Qingxin 3 ;
作者机构： 1.Shandong Univ, Sch Environm Sci & Engn, Shandong Prov Key Lab Water Pollut Control & Reso, Jinan 250100, Peoples R China
2.Shandong Normal Univ, Coll Life Sci, Jinan 250014, Peoples R China
3.Shandong Acad Agr Sci, Inst Agrofood Sci & Technol, Jinan 250100, Peoples R China
关键词： Anaerobic granular sludge;Biosorption;Decabromodiphenyl ether;Functional group;Kinetics
期刊名称：COLLOIDS AND SURFACES B-BIOINTERFACES （ 影响因子：5.268； 五年影响因子：4.957 ）
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收录情况： SCI
摘要： Facilities adopting anaerobic granular sludge are widely used for the treatment of high strength waste-water, and hence collect many polybrominated diphenyl ethers (PBDEs), especially decabromodiphenyl ether (BDE-209). We initiated a detailed investigation to gain insight into the bioremoval of BDE-209 by anaerobic granules. Influenced by solution pH, ionic strength and temperature, the equilibrium time was similar to 6 h and the biosorption amount increased from 0.099 to 1.25 mg/g suspended sludge with the increase of BDE-209 concentrations. Kinetic studies indicate that BDE-209 biosorption on anaerobic granules follows the pseudo second-order kinetic model. Isotherm analysis exhibits that the Langmuir model fits the data at low temperature, while the Freundlich model is appropriate at room temperature. Thermodynamic analysis shows that biosorption followed an endothermic path and was nonspontaneous with negative value of Delta G(0). XPS and FTIR spectra confirmed that oxygen and nitrogen atoms notably contributed to BDE-209 binding. (C) 2015 Elsevier B.V. All rights reserved.
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