Treatability alternatives for sulfide and sulfate in indigo dyeing baths

T. Ölmez; I. Kabdaşli; O. Tünay; C. Kinaci; G. Eryilmaz; D. Yilmazoǧlu

Treatability alternatives for sulfide and sulfate in indigo dyeing baths

T. Ölmez^*, I. Kabdaşli, O. Tünay, C. Kinaci, G. Eryilmaz, D. Yilmazoǧlu

^*Corresponding author for this work

Department of Environmental Engineering

Istanbul Technical University

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

3 Citations (Scopus)

Abstract

In this paper, treatability of indigo dyeing bath was studied. Initially sulfide ions were oxidized. Catalytic air oxidation provided a residual sulfite of 2000 mg l^-1 within one day, which was selected as the optimum duration. Oxone and H₂O₂ oxidation were applied to air-oxidized samples to provide complete oxidation. Reactions were practically complete within one hour and reaction rate was fitted to modified first order kinetics. Sulfate precipitation was carried out in two steps; CaSO₄.2H₂O precipitation followed by ettringite precipitation. 2000 mgl^-1 final sulfate was obtained.

Original language	English
Pages (from-to)	306-313
Number of pages	8
Journal	Fresenius Environmental Bulletin
Volume	9
Issue number	5-6
Publication status	Published - 2000

Keywords

Ettringite precipitation
HO indigo dyeing bath
Oxone
Sulfate precipitation
Sulfide oxidation

Cite this

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title = "Treatability alternatives for sulfide and sulfate in indigo dyeing baths",

abstract = "In this paper, treatability of indigo dyeing bath was studied. Initially sulfide ions were oxidized. Catalytic air oxidation provided a residual sulfite of 2000 mg l-1 within one day, which was selected as the optimum duration. Oxone and H2O2 oxidation were applied to air-oxidized samples to provide complete oxidation. Reactions were practically complete within one hour and reaction rate was fitted to modified first order kinetics. Sulfate precipitation was carried out in two steps; CaSO4.2H2O precipitation followed by ettringite precipitation. 2000 mgl-1 final sulfate was obtained.",

keywords = "Ettringite precipitation, HO indigo dyeing bath, Oxone, Sulfate precipitation, Sulfide oxidation",

author = "T. {\"O}lmez and I. Kabda{\c s}li and O. T{\"u}nay and C. Kinaci and G. Eryilmaz and D. Yilmazoǧlu",

year = "2000",

language = "English",

volume = "9",

pages = "306--313",

journal = "Fresenius Environmental Bulletin",

issn = "1018-4619",

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TY - JOUR

T1 - Treatability alternatives for sulfide and sulfate in indigo dyeing baths

AU - Ölmez, T.

AU - Kabdaşli, I.

AU - Tünay, O.

AU - Kinaci, C.

AU - Eryilmaz, G.

AU - Yilmazoǧlu, D.

PY - 2000

Y1 - 2000

N2 - In this paper, treatability of indigo dyeing bath was studied. Initially sulfide ions were oxidized. Catalytic air oxidation provided a residual sulfite of 2000 mg l-1 within one day, which was selected as the optimum duration. Oxone and H2O2 oxidation were applied to air-oxidized samples to provide complete oxidation. Reactions were practically complete within one hour and reaction rate was fitted to modified first order kinetics. Sulfate precipitation was carried out in two steps; CaSO4.2H2O precipitation followed by ettringite precipitation. 2000 mgl-1 final sulfate was obtained.

AB - In this paper, treatability of indigo dyeing bath was studied. Initially sulfide ions were oxidized. Catalytic air oxidation provided a residual sulfite of 2000 mg l-1 within one day, which was selected as the optimum duration. Oxone and H2O2 oxidation were applied to air-oxidized samples to provide complete oxidation. Reactions were practically complete within one hour and reaction rate was fitted to modified first order kinetics. Sulfate precipitation was carried out in two steps; CaSO4.2H2O precipitation followed by ettringite precipitation. 2000 mgl-1 final sulfate was obtained.

KW - Ettringite precipitation

KW - HO indigo dyeing bath

KW - Oxone

KW - Sulfate precipitation

KW - Sulfide oxidation

UR - http://www.scopus.com/inward/record.url?scp=0342265106&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0342265106

SN - 1018-4619

VL - 9

SP - 306

EP - 313

JO - Fresenius Environmental Bulletin

JF - Fresenius Environmental Bulletin

IS - 5-6

ER -

Treatability alternatives for sulfide and sulfate in indigo dyeing baths

Abstract

Keywords

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