标题：Column adsorption of perchlorate by amine-crosslinked biopolymer based resin and its biological, chemical regeneration properties
作者：Song, Wen ;Xu, Xing ;Tan, Xin ;Wang, Yan ;Ling, Jianya ;Gao, Baoyu ;Yue, Qinyan
作者机构：[Song, Wen ;Xu, Xing ;Wang, Yan ;Gao, Baoyu ;Yue, Qinyan ] Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental 更多
摘要：Column adsorption of perchlorate by amine-crosslinked biopolymer based resin was investigated by considering the bed depth, stream flow rate and influent pH. The empty bed contact time (EBCT) increased with the growth of bed depths, meanwhile rising flow rate at constant bed depth (3.4 cm) decreased the breakthrough time. It was observed that perchlorate adsorption capacity was optimum at neutral condition (pH: 6.0, 170.4 mg/g), and decreased at acidic (pH: 3.0, 96.4 mg/g) or alkalic (pH: 12.0, 72.8 mg/g) influents. The predominant strains of the acclimated sludge for resin biological regeneration were the β-subclass of Proteobacteria. Biological regeneration of the saturated amine-crosslinked biopolymer based resin with mixed bacteria have shown its merit with regeneration and biological perchlorate destruction simultaneously, although its regeneration efficiency was only 61.2-84.1% by contrast to chemical regeneration with efficiency more than 95%.
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