Removal and recovery of uranium(VI) by waste digested activated sludge in fed-batch stirred tank reactor

Rohan Jain; Sirpa Peräniemi; Norbert Jordan; Manja Vogel; Stephan Weiss; Harald Foerstendorf; Aino-Maija Lakaniemi

doi:10.1016/j.watres.2018.05.042

Removal and recovery of uranium(VI) by waste digested activated sludge in fed-batch stirred tank reactor

Rohan Jain^*
, Sirpa Peräniemi
, Norbert Jordan
, Manja Vogel
, Stephan Weiss
, Harald Foerstendorf
, Aino-Maija Lakaniemi

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

54 Citations (Scopus)

Abstract

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).

Original language	English
Pages (from-to)	167-175
Number of pages	9
Journal	Water Research
Volume	142
DOIs	https://doi.org/10.1016/j.watres.2018.05.042
Publication status	Published - 1 Oct 2018
Publication type	A1 Journal article-refereed

Funding

This work was supported by the Academy of Finland under the project titled “Advanced technologies for sustainable exploitation of uranium-bearing mineral resources” (decision number 292639 for Tampere University of Technology and 292574 for University of Eastern Finland ). We also acknowledge the support from Kaivos VV project and European Commission Marie-Curie Individual Fellowships (IF) on the project titled “GaLIophore” (EU project number - 704852 ). The assistance of K. Heim for the IR measurements is greatly acknowledged. Appendix A

Keywords

Adsorption
Desorption
Infrared spectroscopy
Sludge
STR
Uranium

Publication forum classification

Publication forum level 3

ASJC Scopus subject areas

Ecological Modelling
Water Science and Technology
Waste Management and Disposal
Pollution

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10.1016/j.watres.2018.05.042

Cite this

@article{76d95489883045f195abaf1772aa3db0,

title = "Removal and recovery of uranium(VI) by waste digested activated sludge in fed-batch stirred tank reactor",

abstract = "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).",

keywords = "Adsorption, Desorption, Infrared spectroscopy, Sludge, STR, Uranium",

author = "Rohan Jain and Sirpa Per{\"a}niemi and Norbert Jordan and Manja Vogel and Stephan Weiss and Harald Foerstendorf and Aino-Maija Lakaniemi",

year = "2018",

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journal = "Water Research",

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T1 - Removal and recovery of uranium(VI) by waste digested activated sludge in fed-batch stirred tank reactor

AU - Jain, Rohan

AU - Peräniemi, Sirpa

AU - Jordan, Norbert

AU - Vogel, Manja

AU - Weiss, Stephan

AU - Foerstendorf, Harald

AU - Lakaniemi, Aino-Maija

PY - 2018/10/1

Y1 - 2018/10/1

N2 - 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).

AB - 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).

KW - Adsorption

KW - Desorption

KW - Infrared spectroscopy

KW - Sludge

KW - STR

KW - Uranium

U2 - 10.1016/j.watres.2018.05.042

DO - 10.1016/j.watres.2018.05.042

M3 - Article

AN - SCOPUS:85047810396

SN - 0043-1354

VL - 142

SP - 167

EP - 175

JO - Water Research

JF - Water Research

ER -

Removal and recovery of uranium(VI) by waste digested activated sludge in fed-batch stirred tank reactor

Abstract

Funding

Keywords

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ASJC Scopus subject areas

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