Research Article pubs.acs.org/journal/ascecg
Biosorption and Bioreduction of Perchlorate Using the NanoFe3O4‑Laden Quaternary-Ammonium Chinese Reed: Considering the Coexisting Nitrate and Nano-Fe3O4 Yanan Shang,† Xing Xu,*,† Peng Jiang,† Shutao Qi,‡ Zhongfei Ren,† Wen Song,† and Baoyu Gao*,† †
Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Shanda South Road #27, Jinan 250100, P. R. China ‡ School of Chemistry and Chemical Engineering, Shandong University, Shanda South Road #27, Jinan 250100, P. R. China S Supporting Information *
ABSTRACT: Nano-Fe3O4-laden quaternary-ammonium Chinese reed has been prepared for perchlorate removal, and the laden perchlorate was bioreduced on the surface of the biosorbent by mixed perchlorate-reducing bacteria. Results of kinetics, isotherms, and computations revealed strong competitive impact of coexisting NO3− on the uptake of perchlorate. Perchlorate capacity loss dropped significantly (37−50%) at relatively lower molar ratio of nitrate to perchlorate (
