title: Column adsorption of perchlorate by amine-crosslinked biopolymer based resin and its biological, chemical regeneration properties.
abstract: 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%.
authors.affiliation: Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China.
authors.forename: Wen
authors.initials: W
authors.lastname: Song
authors.affiliation: Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China.
authors.forename: Xing
authors.initials: X
authors.lastname: Xu
authors.affiliation: Key Laboratory of Shandong Academy of Environmental Science, Jinan 250100, PR China.
authors.forename: Xin
authors.initials: X
authors.lastname: Tan
authors.affiliation: Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China. Electronic address: wangyan_sdjn@aliyun.com.
authors.forename: Yan
authors.initials: Y
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Microbial Technology, School of Life Science and Engineering, Shandong University, Jinan 250100, PR China.
authors.forename: Jianya
authors.initials: J
authors.lastname: Ling
authors.affiliation: Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China. Electronic address: bygao@sdu.edu.cn.
authors.forename: Baoyu
authors.initials: B
authors.lastname: Gao
authors.affiliation: Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China.
authors.forename: Qinyan
authors.initials: Q
authors.lastname: Yue
mesh_terms: D000327:Adsorption; D000588:Amines / Q000737:chemistry*; D001419:Bacteria / Q000737:chemistry / Q000302:isolation & purification; D001704:Biopolymers / Q000737:chemistry*; D006851:Hydrochloric Acid / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D010472:Perchlorates / Q000737:chemistry*; D012117:Resins, Synthetic / Q000737:chemistry*; D062065:Wastewater / Q000382:microbiology; D018508:Water Purification
chemical_list: D000588:Amines; D001704:Biopolymers; D006851:Hydrochloric Acid; D010472:Perchlorates; D012117:Resins, Synthetic; D062065:Wastewater; C494474:perchlorate
keywords: Biological regeneration; Biopolymer; Chemical regeneration; Column adsorption; Perchlorate