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Title: Alternative alkaline conditioning of amidoxime based adsorbent for uranium extraction from seawater

Abstract

Alkaline conditioning of the amidoxime based adsorbents is a significant step in the preparation of the adsorbent for uranium uptake from seawater. The effects of various alkaline conditioning parameters such as the type of alkaline reagent, reaction temperature, and reaction time were investigated with respect to uranium adsorption capacity from simulated seawater (spiked with 8 ppm uranium) and natural seawater (from Sequim Bay, WA). An adsorbent (AF1) was prepared at the Oak Ridge National Laboratory by radiation-induced graft polymerization (RIGP) with acrylonitrile and itaconic acid onto high-surface-area polyethylene fibers. For the AF1 adsorbent, sodium hydroxide emerged as a better reagent for alkaline conditioning over potassium hydroxide, which has typically been used in previous studies, because of higher uranium uptake capacity and lower cost over the other candidate alkaline reagents investigated in this study. Furthermore, the use of sodium hydroxide in place of potassium hydroxide is shown to result in a 21–30% decrease in the cost of uranium recovery.

Authors:
 [1];  [1];  [2];  [1];  [1];  [1];  [3];  [4];  [4];  [4];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Univ. of Texas at Austin, Austin, TX (United States)
  3. University of Texas at Austin, Austin, TX (United States)
  4. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1286914
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Industrial and Engineering Chemistry Research
Additional Journal Information:
Journal Volume: 55; Journal Issue: 15; Journal ID: ISSN 0888-5885
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES

Citation Formats

Das, Sadananda, Liao, Wei -Po, Byers, Maggie Flicker, Tsouris, Costas, Janke, Christopher James, Mayes, Richard T., Schneider, Eric, Kuo, Li -Jung, Wood, Jordana R., Gill, Gary A., and Dai, Sheng. Alternative alkaline conditioning of amidoxime based adsorbent for uranium extraction from seawater. United States: N. p., 2015. Web. doi:10.1021/acs.iecr.5b03210.
Das, Sadananda, Liao, Wei -Po, Byers, Maggie Flicker, Tsouris, Costas, Janke, Christopher James, Mayes, Richard T., Schneider, Eric, Kuo, Li -Jung, Wood, Jordana R., Gill, Gary A., & Dai, Sheng. Alternative alkaline conditioning of amidoxime based adsorbent for uranium extraction from seawater. United States. https://doi.org/10.1021/acs.iecr.5b03210
Das, Sadananda, Liao, Wei -Po, Byers, Maggie Flicker, Tsouris, Costas, Janke, Christopher James, Mayes, Richard T., Schneider, Eric, Kuo, Li -Jung, Wood, Jordana R., Gill, Gary A., and Dai, Sheng. Sun . "Alternative alkaline conditioning of amidoxime based adsorbent for uranium extraction from seawater". United States. https://doi.org/10.1021/acs.iecr.5b03210. https://www.osti.gov/servlets/purl/1286914.
@article{osti_1286914,
title = {Alternative alkaline conditioning of amidoxime based adsorbent for uranium extraction from seawater},
author = {Das, Sadananda and Liao, Wei -Po and Byers, Maggie Flicker and Tsouris, Costas and Janke, Christopher James and Mayes, Richard T. and Schneider, Eric and Kuo, Li -Jung and Wood, Jordana R. and Gill, Gary A. and Dai, Sheng},
abstractNote = {Alkaline conditioning of the amidoxime based adsorbents is a significant step in the preparation of the adsorbent for uranium uptake from seawater. The effects of various alkaline conditioning parameters such as the type of alkaline reagent, reaction temperature, and reaction time were investigated with respect to uranium adsorption capacity from simulated seawater (spiked with 8 ppm uranium) and natural seawater (from Sequim Bay, WA). An adsorbent (AF1) was prepared at the Oak Ridge National Laboratory by radiation-induced graft polymerization (RIGP) with acrylonitrile and itaconic acid onto high-surface-area polyethylene fibers. For the AF1 adsorbent, sodium hydroxide emerged as a better reagent for alkaline conditioning over potassium hydroxide, which has typically been used in previous studies, because of higher uranium uptake capacity and lower cost over the other candidate alkaline reagents investigated in this study. Furthermore, the use of sodium hydroxide in place of potassium hydroxide is shown to result in a 21–30% decrease in the cost of uranium recovery.},
doi = {10.1021/acs.iecr.5b03210},
journal = {Industrial and Engineering Chemistry Research},
number = 15,
volume = 55,
place = {United States},
year = {Sun Oct 18 00:00:00 EDT 2015},
month = {Sun Oct 18 00:00:00 EDT 2015}
}

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Works referencing / citing this record:

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