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Title: Removal of dissolved silica from industrial waters using inorganic ion exchangers

Authors:
; ; ;
Publication Date:
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1414889
Grant/Contract Number:
AC04-94AL85000
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Journal of Water Process Engineering
Additional Journal Information:
Journal Volume: 17; Journal Issue: C; Related Information: CHORUS Timestamp: 2017-12-26 19:45:56; Journal ID: ISSN 2214-7144
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English

Citation Formats

Sasan, Koroush, Brady, Patrick V., Krumhansl, James L., and Nenoff, Tina M. Removal of dissolved silica from industrial waters using inorganic ion exchangers. Netherlands: N. p., 2017. Web. doi:10.1016/j.jwpe.2017.02.006.
Sasan, Koroush, Brady, Patrick V., Krumhansl, James L., & Nenoff, Tina M. Removal of dissolved silica from industrial waters using inorganic ion exchangers. Netherlands. doi:10.1016/j.jwpe.2017.02.006.
Sasan, Koroush, Brady, Patrick V., Krumhansl, James L., and Nenoff, Tina M. Thu . "Removal of dissolved silica from industrial waters using inorganic ion exchangers". Netherlands. doi:10.1016/j.jwpe.2017.02.006.
@article{osti_1414889,
title = {Removal of dissolved silica from industrial waters using inorganic ion exchangers},
author = {Sasan, Koroush and Brady, Patrick V. and Krumhansl, James L. and Nenoff, Tina M.},
abstractNote = {},
doi = {10.1016/j.jwpe.2017.02.006},
journal = {Journal of Water Process Engineering},
number = C,
volume = 17,
place = {Netherlands},
year = {Thu Jun 01 00:00:00 EDT 2017},
month = {Thu Jun 01 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.jwpe.2017.02.006

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  • After a literature search on the development and uses of synthetic inorganic ion exchangers, the exchange behavior of mixed gels of ZrO/sub 2/ and SiO/sub 2/ is examined. With increasing mole ratios SiO/sub 2/: ZrO/sub 2/, a capacity maximum is passed through. An increase in acidity permits phosphate treatment. (tr-auth)
  • The removal of silica, ubiquitous in produced and industrial waters, by novel mixed oxides is investigated in this present study. We have combined the advantage of high selectivity hydrotalcite (HTC, (Mg 6Al 2(OH) 16(CO 3)¬∑4H 2O)), with large surface area of active alumina (AA, (Al 2O 3)) for effective removing of the dissolved silica from cooling tower water. The batch test results indicated the combined HTC/AA is a more effective method for removing silica from CTW than using each of HTC or AA separately. The silica uptake was confirmed by Fourier transform infrared (FTIR), and Energy dispersive spectroscopy (EDS). Ourmore » results indicate HTC/AA effectively removes silica from cooling tower water (CTW), even in the presence of large concentrations of competing anions, such as Cl -, NO 3 - HCO 3 -, CO 3 2- and SO 4 2-. The Single Path Flow Through (SPFT) tests confirmed to rapid uptake of silica by combined HTC/AA during column filtration. The experimental data of silica adsorption fit best to Freundlich isotherm model.« less
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