Investigation of dye removal capability of blast furnace slag in wastewater treatment

Sara Yasipourtehrani; Vladimir Strezov; Tao Kan; Tim Evans

doi:10.3390/su13041970

Investigation of dye removal capability of blast furnace slag in wastewater treatment

Sara Yasipourtehrani, Vladimir Strezov, Tao Kan, Tim Evans

Faculty of Science and Engineering

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

6 Citations (Scopus)

72 Downloads (Pure)

Abstract

Blast Furnace Slag (BFS) is a by-product of the iron ore processing industry with potential to be used in different industrial applications. In this research, BFS was used to examine its ability for dye removal from wastewater. The efficiency of two types of BFS samples for removal of cationic methylene blue (MB) and acidic methyl orange (MO) dyes was investigated and results found that the optimal conditions for treatment of wastewater were 80 g/L of adsorbent dose and 1 h of treatment time for both dyes. BFS was found to be more effective for removal of the acidic MO dye than the cationic MB dye. Under shorter residence times, the results showed reverse trends with BFS samples removing higher concentrations of MB than MO. The BFS chemistry had additional impacts on the efficiency of dye removal. Higher basicity of BFS had lower dye removal ability for adsorption of acidic dye when applied at smaller concentrations, while for cationic dye when applied at higher concentrations. The results showed that BFS has potential role for pre-treatment of industrial wastewater contaminated with dyes and may contribute to reduced use of more expensive adsorbents, such as activated carbons.

Original language	English
Article number	1970
Pages (from-to)	1-17
Number of pages	17
Journal	Sustainability
Volume	13
Issue number	4
DOIs	https://doi.org/10.3390/su13041970
Publication status	Published - 2 Feb 2021

Bibliographical note

Copyright the Author(s) 2021. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

blast furnace slag
dye removal
wastewater treatment

Access to Document

10.3390/su13041970Licence: CC BY

Publisher version (open access)Final published version, 1.33 MBLicence: CC BY

Cite this

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title = "Investigation of dye removal capability of blast furnace slag in wastewater treatment",

abstract = "Blast Furnace Slag (BFS) is a by-product of the iron ore processing industry with potential to be used in different industrial applications. In this research, BFS was used to examine its ability for dye removal from wastewater. The efficiency of two types of BFS samples for removal of cationic methylene blue (MB) and acidic methyl orange (MO) dyes was investigated and results found that the optimal conditions for treatment of wastewater were 80 g/L of adsorbent dose and 1 h of treatment time for both dyes. BFS was found to be more effective for removal of the acidic MO dye than the cationic MB dye. Under shorter residence times, the results showed reverse trends with BFS samples removing higher concentrations of MB than MO. The BFS chemistry had additional impacts on the efficiency of dye removal. Higher basicity of BFS had lower dye removal ability for adsorption of acidic dye when applied at smaller concentrations, while for cationic dye when applied at higher concentrations. The results showed that BFS has potential role for pre-treatment of industrial wastewater contaminated with dyes and may contribute to reduced use of more expensive adsorbents, such as activated carbons.",

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author = "Sara Yasipourtehrani and Vladimir Strezov and Tao Kan and Tim Evans",

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doi = "10.3390/su13041970",

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AU - Yasipourtehrani, Sara

AU - Strezov, Vladimir

AU - Kan, Tao

AU - Evans, Tim

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PY - 2021/2/2

Y1 - 2021/2/2

N2 - Blast Furnace Slag (BFS) is a by-product of the iron ore processing industry with potential to be used in different industrial applications. In this research, BFS was used to examine its ability for dye removal from wastewater. The efficiency of two types of BFS samples for removal of cationic methylene blue (MB) and acidic methyl orange (MO) dyes was investigated and results found that the optimal conditions for treatment of wastewater were 80 g/L of adsorbent dose and 1 h of treatment time for both dyes. BFS was found to be more effective for removal of the acidic MO dye than the cationic MB dye. Under shorter residence times, the results showed reverse trends with BFS samples removing higher concentrations of MB than MO. The BFS chemistry had additional impacts on the efficiency of dye removal. Higher basicity of BFS had lower dye removal ability for adsorption of acidic dye when applied at smaller concentrations, while for cationic dye when applied at higher concentrations. The results showed that BFS has potential role for pre-treatment of industrial wastewater contaminated with dyes and may contribute to reduced use of more expensive adsorbents, such as activated carbons.

AB - Blast Furnace Slag (BFS) is a by-product of the iron ore processing industry with potential to be used in different industrial applications. In this research, BFS was used to examine its ability for dye removal from wastewater. The efficiency of two types of BFS samples for removal of cationic methylene blue (MB) and acidic methyl orange (MO) dyes was investigated and results found that the optimal conditions for treatment of wastewater were 80 g/L of adsorbent dose and 1 h of treatment time for both dyes. BFS was found to be more effective for removal of the acidic MO dye than the cationic MB dye. Under shorter residence times, the results showed reverse trends with BFS samples removing higher concentrations of MB than MO. The BFS chemistry had additional impacts on the efficiency of dye removal. Higher basicity of BFS had lower dye removal ability for adsorption of acidic dye when applied at smaller concentrations, while for cationic dye when applied at higher concentrations. The results showed that BFS has potential role for pre-treatment of industrial wastewater contaminated with dyes and may contribute to reduced use of more expensive adsorbents, such as activated carbons.

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KW - dye removal

KW - wastewater treatment

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JO - Sustainability

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ER -

Investigation of dye removal capability of blast furnace slag in wastewater treatment

Abstract

Bibliographical note

Keywords

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Hot stage separation of non-ferrous fraction during iron ore reduction

Cite this

Investigation of dye removal capability of blast furnace slag in wastewater treatment

Abstract

Bibliographical note

Keywords

Access to Document

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Projects

Hot stage separation of non-ferrous fraction during iron ore reduction

Cite this