期刊
CHEMICAL ENGINEERING JOURNAL
卷 321, 期 -, 页码 346-357出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2017.03.138
关键词
Tetrabromobisphenol A; Biochar; Immobilization; Synchrotron-assisted analysis; Inorganic fertilizer ions; Factorial analysis
资金
- Natural Science and Engineering Research Council of Canada
- Canada Foundation for Innovation (CFI)
- Canada Research Chairs Program (CRC)
- Canada Foundation for Innovation
- University of Saskatchewan
- Western Economic Diversification Canada
- National Research Council Canada
- Canadian Institutes of Health Research
- Natural Sciences and Engineering Research Council of Canada
- Government of Saskatchewan
The immobilization of tetrabromobisphenol A (TBBPA) by pinecone-derived biochars at solid-liquid interface was investigated in this study. The surface structures and functional groups of biochars produced at different temperatures were characterized through synchrotron-assisted FTIR analysis. The adsorption isotherms were well described by the Langmuir model. The adsorption capacity of TBBPA varied as pH and TBBPA initial concentration changed and the molecular form of TBBPA predominated in pH 5-7 played an important role. The influences of inorganic fertilizer ions (NH4+, PO43- and NO3-) on the immobilization of TBBPA by pinecone biochars were revealed through fractional-factorial assisted analysis. The results indicated the main effects include negative effects of PO43-, positive effects of NH4+ and insignificant effects of NO3- ions in immobilization and there are interactions among these ions, pH and biochar properties. The results of this study can help understand migration patterns of TBBPA and analyze the immobilization on biochars in the presence of inorganic fertilizer ions. It will have important implications for risk assessment and site remediation regarding overall environmental performance. (C) 2017 Published by Elsevier B.V.
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