DOI: 10.1016/j.watres.2018.05.042
Scopus记录号: 2-s2.0-85047810396
论文题名: Removal and recovery of uranium(VI) by waste digested activated sludge in fed-batch stirred tank reactor
作者: Jain R. ; Peräniemi S. ; Jordan N. ; Vogel M. ; Weiss S. ; Foerstendorf H. ; Lakaniemi A.-M.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 142 起始页码: 167
结束页码: 175
语种: 英语
英文关键词: Adsorption
; Desorption
; Infrared spectroscopy
; Sludge
; STR
; Uranium
Scopus关键词: Adsorption
; Alkalinity
; Chlorine compounds
; Desorption
; Fluorescence microscopy
; Fluorescence spectroscopy
; Infrared spectroscopy
; Recovery
; Sodium Carbonate
; Sodium compounds
; Tanks (containers)
; Uranium
; Adsorption efficiency
; Batch adsorption experiments
; Equilibrium state
; Removal and recoveries
; Situ infrared spectroscopy
; Sludge
; Time-resolved laser-induced fluorescence spectroscopy
; Uranium adsorption
; Uranium compounds
; carboxyl group
; hydrochloric acid
; sodium carbonate
; uranium
; activated sludge
; adsorption
; alkalinity
; desorption
; equipment
; experimental study
; infrared spectroscopy
; pollutant removal
; uranium
; acidity
; activated sludge
; adsorption kinetics
; alkalinity
; Article
; batch process
; dephosphorylation
; desorption
; infrared spectroscopy
; metal recovery
; pH
; priority journal
; proof of concept
; sludge digestion
; waste component removal
英文摘要: This study demonstrated the removal and recovery of uranium(VI) in a fed-batch stirred tank reactor (STR) using waste digested activated sludge (WDAS). The batch adsorption experiments showed that WDAS can adsorb 200 (±9.0) mg of uranium(VI) per g of WDAS. The maximum adsorption of uranium(VI) was achieved even at an acidic initial pH of 2.7 which increased to a pH of 4.0 in the equilibrium state. Desorption of uranium(VI) from WDAS was successfully demonstrated from the release of more than 95% of uranium(VI) using both acidic (0.5 M HCl) and alkaline (1.0 M Na2CO3) eluents. Due to the fast kinetics of uranium(VI) adsorption onto WDAS, the fed-batch STR was successfully operated at a mixing time of 15 min. Twelve consecutive uranium(VI) adsorption steps with an average adsorption efficiency of 91.5% required only two desorption steps to elute more than 95% of uranium(VI) from WDAS. Uranium(VI) was shown to interact predominantly with the phosphoryl and carboxyl groups of the WDAS, as revealed by in situ infrared spectroscopy and time-resolved laser-induced fluorescence spectroscopy studies. This study provides a proof-of-concept of the use of fed-batch STR process based on WDAS for the removal and recovery of uranium(VI). © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112643
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Tampere University of Technology, Faculty of Natural Sciences, P.O. Box 541, Tampere, FI-33101, Finland; Helmholtz-Zentrum Dresden - Rossendorf, Helmholtz Institute Freiberg for Resource Technology, Bautzner Landstraße 400, Dresden, 01328, Germany; School of Pharmacy, University of Eastern Finland, P.O. Box 1627, Kuopio, FI-70221, Finland; Helmholtz-Zentrum Dresden - Rossendorf, Institute of Resource Ecology, Bautzner Landstraße 400, Dresden, 01328, Germany
Recommended Citation:
Jain R.,Peräniemi S.,Jordan N.,et al. Removal and recovery of uranium(VI) by waste digested activated sludge in fed-batch stirred tank reactor[J]. Water Research,2018-01-01,142