Enhancing Biodegradability of Textile Wastewater by Ozonation Processes: Optimization with Response Surface Methodology

Kubra Ulucan-Altuntas; Fatih Ilhan

doi:10.1080/01919512.2018.1474339

Enhancing Biodegradability of Textile Wastewater by Ozonation Processes: Optimization with Response Surface Methodology

Kubra Ulucan-Altuntas^*, Fatih Ilhan

^*Corresponding author for this work

Yildiz Technical University

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

25 Citations (Scopus)

Abstract

In this study, an ozonation process was used to increase biodegradability of textile wastewater by considering chemical oxygen demand (COD) and color removal. Response surface methodology was applied in order to determine the significance of independent variables which are initial pH, reaction time and ozone dose. While a biological oxygen demand (BOD)/COD rate of 0.315 was obtained at optimum conditions, which are pH 9, 75 min of reaction time and 26 mg/L ozone dose, color and COD removal was obtained at 74% and 39%, respectively. BOD/COD ratio value increased from 0.18 to 0.32 by ozonation process. In addition, k coefficient for BOD also increased from 0.21 to 0.30 d⁻¹.

Original language	English
Pages (from-to)	465-472
Number of pages	8
Journal	Ozone: Science and Engineering
Volume	40
Issue number	6
DOIs	https://doi.org/10.1080/01919512.2018.1474339
Publication status	Published - 2 Nov 2018
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2018, © 2018 International Ozone Association.

Keywords

k coefficient
Non-Biodegradable COD
Ozonation
Response Surface Methodology (RSM)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1080/01919512.2018.1474339

Cite this

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title = "Enhancing Biodegradability of Textile Wastewater by Ozonation Processes: Optimization with Response Surface Methodology",

abstract = "In this study, an ozonation process was used to increase biodegradability of textile wastewater by considering chemical oxygen demand (COD) and color removal. Response surface methodology was applied in order to determine the significance of independent variables which are initial pH, reaction time and ozone dose. While a biological oxygen demand (BOD)/COD rate of 0.315 was obtained at optimum conditions, which are pH 9, 75 min of reaction time and 26 mg/L ozone dose, color and COD removal was obtained at 74% and 39%, respectively. BOD/COD ratio value increased from 0.18 to 0.32 by ozonation process. In addition, k coefficient for BOD also increased from 0.21 to 0.30 d−1.",

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AU - Ilhan, Fatih

PY - 2018/11/2

Y1 - 2018/11/2

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AB - In this study, an ozonation process was used to increase biodegradability of textile wastewater by considering chemical oxygen demand (COD) and color removal. Response surface methodology was applied in order to determine the significance of independent variables which are initial pH, reaction time and ozone dose. While a biological oxygen demand (BOD)/COD rate of 0.315 was obtained at optimum conditions, which are pH 9, 75 min of reaction time and 26 mg/L ozone dose, color and COD removal was obtained at 74% and 39%, respectively. BOD/COD ratio value increased from 0.18 to 0.32 by ozonation process. In addition, k coefficient for BOD also increased from 0.21 to 0.30 d−1.

KW - k coefficient

KW - Non-Biodegradable COD

KW - Ozonation

KW - Response Surface Methodology (RSM)

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Enhancing Biodegradability of Textile Wastewater by Ozonation Processes: Optimization with Response Surface Methodology

Abstract

Bibliographical note

Keywords

UN SDGs

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