Sulfate removal by ettringite precipitation

Elif Pehlivanoǧlu; Işik Kabdaşli; Olcay Tünay

Sulfate removal by ettringite precipitation

Elif Pehlivanoǧlu, Işik Kabdaşli, Olcay Tünay

Department of Environmental Engineering

Istanbul Technical University

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

5 Citations (Scopus)

Abstract

In this study, the principles of chemical precipitation of sulfate which is based on the formation of ettringite, a double salt with the formula Ca₃Al₂O₆.3CaSO₄.32H₄O are evaluated. The Al₂(SO₄)₃-Ca(OH)₂-H₂O system is chosen to study the equilibrium equations for ettringite precipitation. The residual sulfate concentrations are below 200 mg/1 in pH values above 10,5 indicating that ettringite precipitation can be employed as an alternative treatment process for the removal of sulfate ions.

Original language	English
Pages (from-to)	826-832
Number of pages	7
Journal	Fresenius Environmental Bulletin
Volume	7
Issue number	12
Publication status	Published - 1998

Bibliographical note

Publisher Copyright:
© Editors, Freising-Weihenstephan/FRG.

Keywords

Chemical Precipitation
Ettringite
Sulfate Removal

Cite this

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title = "Sulfate removal by ettringite precipitation",

abstract = "In this study, the principles of chemical precipitation of sulfate which is based on the formation of ettringite, a double salt with the formula Ca3Al2O6.3CaSO4.32H4O are evaluated. The Al2(SO4)3-Ca(OH)2-H2O system is chosen to study the equilibrium equations for ettringite precipitation. The residual sulfate concentrations are below 200 mg/1 in pH values above 10,5 indicating that ettringite precipitation can be employed as an alternative treatment process for the removal of sulfate ions.",

keywords = "Chemical Precipitation, Ettringite, Sulfate Removal",

author = "Elif Pehlivanoǧlu and I{\c s}ik Kabda{\c s}li and Olcay T{\"u}nay",

note = "Publisher Copyright: {\textcopyright} Editors, Freising-Weihenstephan/FRG.",

year = "1998",

language = "English",

volume = "7",

pages = "826--832",

journal = "Fresenius Environmental Bulletin",

issn = "1018-4619",

publisher = "Parlar Scientific Publications",

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TY - JOUR

T1 - Sulfate removal by ettringite precipitation

AU - Pehlivanoǧlu, Elif

AU - Kabdaşli, Işik

AU - Tünay, Olcay

N1 - Publisher Copyright: © Editors, Freising-Weihenstephan/FRG.

PY - 1998

Y1 - 1998

N2 - In this study, the principles of chemical precipitation of sulfate which is based on the formation of ettringite, a double salt with the formula Ca3Al2O6.3CaSO4.32H4O are evaluated. The Al2(SO4)3-Ca(OH)2-H2O system is chosen to study the equilibrium equations for ettringite precipitation. The residual sulfate concentrations are below 200 mg/1 in pH values above 10,5 indicating that ettringite precipitation can be employed as an alternative treatment process for the removal of sulfate ions.

AB - In this study, the principles of chemical precipitation of sulfate which is based on the formation of ettringite, a double salt with the formula Ca3Al2O6.3CaSO4.32H4O are evaluated. The Al2(SO4)3-Ca(OH)2-H2O system is chosen to study the equilibrium equations for ettringite precipitation. The residual sulfate concentrations are below 200 mg/1 in pH values above 10,5 indicating that ettringite precipitation can be employed as an alternative treatment process for the removal of sulfate ions.

KW - Chemical Precipitation

KW - Ettringite

KW - Sulfate Removal

UR - http://www.scopus.com/inward/record.url?scp=84969379882&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:84969379882

SN - 1018-4619

VL - 7

SP - 826

EP - 832

JO - Fresenius Environmental Bulletin

JF - Fresenius Environmental Bulletin

IS - 12

ER -

Sulfate removal by ettringite precipitation

Abstract

Bibliographical note

Keywords

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