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Title: Synthesis of Al-substituted 11 A tobermorite from newsprint recycling residue: a feasibility study

Abstract

Newsprint recycling is responsible for significant volumes of secondary waste material for which further reprocessing and market development would be beneficial. In response to this problem, a layer lattice, ion exchange material, Al-substituted 11 A tobermorite, has been synthesised from newsprint recycling residue comprising gehlenite (Ca{sub 2}Al{sub 2}SiO{sub 7}), akermanite (Ca{sub 2}MgSi{sub 2}O{sub 7}), {beta}-dicalcium silicate (Ca{sub 2}SiO{sub 4}) and anorthite (CaAl{sub 2}Si{sub 2}O{sub 8}) under hydrothermal conditions at 100 deg. C in the presence of NaOH. The hydrogarnet phase, katoite (Ca{sub 3}Al{sub 2}SiO{sub 12}H{sub 8}), was also formed. Similar treatment regimes in the presence of LiOH and KOH did not yield significant quantities of Al-substituted 11 A tobermorite. A batch sorption study confirmed that the Al-substituted 11 A tobermorite-bearing product was effective in the exclusion of Cd{sup 2+}, Pb{sup 2+} and Zn{sup 2+} from acidified aqueous media. The potential to enhance the yield of Al-substituted 11 A tobermorite relative to that of katoite and thus optimise the ion exchange efficiency of the product is discussed with respect to its application to heavy metal-contaminated wastewater treatment.

Authors:
;
Publication Date:
OSTI Identifier:
20884647
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 38; Journal Issue: 3; Other Information: DOI: 10.1016/S0025-5408(02)01056-5; PII: S0025540802010565; Copyright (c) 2002 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; ANORTHITE; CALCIUM SILICATES; CHEMICAL PREPARATION; FEASIBILITY STUDIES; HEAVY METALS; ION EXCHANGE; ION EXCHANGE MATERIALS; LEAD IONS; LITHIUM HYDROXIDES; POTASSIUM HYDROXIDES; RECYCLING; REPROCESSING; RESIDUES; SODIUM HYDROXIDES; WASTE WATER; WATER TREATMENT; ZINC IONS

Citation Formats

Coleman, Nichola J, and Brassington, David S. Synthesis of Al-substituted 11 A tobermorite from newsprint recycling residue: a feasibility study. United States: N. p., 2003. Web. doi:10.1016/S0025-5408(02)01056-5.
Coleman, Nichola J, & Brassington, David S. Synthesis of Al-substituted 11 A tobermorite from newsprint recycling residue: a feasibility study. United States. https://doi.org/10.1016/S0025-5408(02)01056-5
Coleman, Nichola J, and Brassington, David S. 2003. "Synthesis of Al-substituted 11 A tobermorite from newsprint recycling residue: a feasibility study". United States. https://doi.org/10.1016/S0025-5408(02)01056-5.
@article{osti_20884647,
title = {Synthesis of Al-substituted 11 A tobermorite from newsprint recycling residue: a feasibility study},
author = {Coleman, Nichola J and Brassington, David S},
abstractNote = {Newsprint recycling is responsible for significant volumes of secondary waste material for which further reprocessing and market development would be beneficial. In response to this problem, a layer lattice, ion exchange material, Al-substituted 11 A tobermorite, has been synthesised from newsprint recycling residue comprising gehlenite (Ca{sub 2}Al{sub 2}SiO{sub 7}), akermanite (Ca{sub 2}MgSi{sub 2}O{sub 7}), {beta}-dicalcium silicate (Ca{sub 2}SiO{sub 4}) and anorthite (CaAl{sub 2}Si{sub 2}O{sub 8}) under hydrothermal conditions at 100 deg. C in the presence of NaOH. The hydrogarnet phase, katoite (Ca{sub 3}Al{sub 2}SiO{sub 12}H{sub 8}), was also formed. Similar treatment regimes in the presence of LiOH and KOH did not yield significant quantities of Al-substituted 11 A tobermorite. A batch sorption study confirmed that the Al-substituted 11 A tobermorite-bearing product was effective in the exclusion of Cd{sup 2+}, Pb{sup 2+} and Zn{sup 2+} from acidified aqueous media. The potential to enhance the yield of Al-substituted 11 A tobermorite relative to that of katoite and thus optimise the ion exchange efficiency of the product is discussed with respect to its application to heavy metal-contaminated wastewater treatment.},
doi = {10.1016/S0025-5408(02)01056-5},
url = {https://www.osti.gov/biblio/20884647}, journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 3,
volume = 38,
place = {United States},
year = {Thu Feb 20 00:00:00 EST 2003},
month = {Thu Feb 20 00:00:00 EST 2003}
}