Optimization of Coagulation Process Parameters for Reactive Red 120 Dye Using Ferric Chloride via Response Surface Methodology

Sevtap Tırınk

Article Details

Optimization of Coagulation Process Parameters for Reactive Red 120 Dye Using Ferric Chloride via Response Surface Methodology

Authors:

Sevtap Tırınk

Publisher:

Karyay Karadeniz Yayımcılık

Main Topics:

Temiz Üretim Teknolojileri

Journal:

Black Sea Journal of Engineering and Science Vol.8 Issue 5, pp.1595-1604

Document Type:

Article

Publication Date:

9/2025

Document Language:

English

Document ID (Org No.):

2001354574

pISSN:

2619-8991

Keywords:

Abstract:

 In this study, the removal of Reactive Red 120, a dye commonly present in textile wastewater, was investigated using Ferric Chloride FeCl₃ as a coagulant. Process optimization was carried out through Response Surface Methodology based on a four-factor experimental design, considering initial pH 212, coagulant dose 100500 mgL, mixing speed 50250 rpm, and initial dye concentration 25250 mgL. A second-order polynomial model was developed and evaluated by ANOVA to assess the individual and interactive effects of these parameters on color removal efficiency. The maximum removal efficiency of 96.28 was obtained at pH 3, coagulant dose 400 mgL, mixing speed 100 rpm, and dye concentration 200 mgL. The Response Surface Methodology model showed good agreement with the experimental data and predicted a theoretical maximum efficiency of 98.33 under optimized conditions. Overall, the results confirm that FeCl₃-based coagulation, when optimized by Response Surface Methodology, is a robust and scalable pretreatment option for textile wastewater, capable of achieving near-complete decolorization and providing practical operating ranges for implementation.

 In this study, the removal of Reactive Red 120, a dye commonly present in textile wastewater, was investigated using Ferric Chloride FeCl₃ as a coagulant. Process optimization was carried out through Response Surface Methodology based on a four-factor experimental design, considering initial pH 212, coagulant dose 100500 mgL, mixing speed 50250 rpm, and initial dye concentration 25250 mgL. A second-order polynomial model was developed and evaluated by ANOVA to assess the individual and interactive effects of these parameters on color removal efficiency. The maximum removal efficiency of 96.28 was obtained at pH 3, coagulant dose 400 mgL, mixing speed 100 rpm, and dye concentration 200 mgL. The Response Surface Methodology model showed good agreement with the experimental data and predicted a theoretical maximum efficiency of 98.33 under optimized conditions. Overall, the results confirm that FeCl₃-based coagulation, when optimized by Response Surface Methodology, is a robust and scalable pretreatment option for textile wastewater, capable of achieving near-complete decolorization and providing practical operating ranges for implementation.

 In this study, the removal of Reactive Red 120, a dye commonly present in textile wastewater, was investigated using Ferric Chloride FeCl₃ as a coagulant. Process optimization was carried out through Response Surface Methodology based on a four-factor experimental design, considering initial pH 212, coagulant dose 100500 mgL, mixing speed 50250 rpm, and initial dye concentration 25250 mgL. A second-order polynomial model was developed and evaluated by ANOVA to assess the individual and interactive effects of these parameters on color removal efficiency. The maximum removal efficiency of 96.28 was obtained at pH 3, coagulant dose 400 mgL, mixing speed 100 rpm, and dye concentration 200 mgL. The Response Surface Methodology model showed good agreement with the experimental data and predicted a theoretical maximum efficiency of 98.33 under optimized conditions. Overall, the results confirm that FeCl₃-based coagulation, when optimized by Response Surface Methodology, is a robust and scalable pretreatment option for textile wastewater, capable of achieving near-complete decolorization and providing practical operating ranges for implementation.

 In this study, the removal of Reactive Red 120, a dye commonly present in textile wastewater, was investigated using Ferric Chloride FeCl₃ as a coagulant. Process optimization was carried out through Response Surface Methodology based on a four-factor experimental design, considering initial pH 212, coagulant dose 100500 mgL, mixing speed 50250 rpm, and initial dye concentration 25250 mgL. A second-order polynomial model was developed and evaluated by ANOVA to assess the individual and interactive effects of these parameters on color removal efficiency. The maximum removal efficiency of 96.28 was obtained at pH 3, coagulant dose 400 mgL, mixing speed 100 rpm, and dye concentration 200 mgL. The Response Surface Methodology model showed good agreement with the experimental data and predicted a theoretical maximum efficiency of 98.33 under optimized conditions. Overall, the results confirm that FeCl₃-based coagulation, when optimized by Response Surface Methodology, is a robust and scalable pretreatment option for textile wastewater, capable of achieving near-complete decolorization and providing practical operating ranges for implementation.

Article Details

Optimization of Coagulation Process Parameters for Reactive Red 120 Dye Using Ferric Chloride via Response Surface Methodology

Authors:

Sevtap Tırınk

Publisher:

Karyay Karadeniz Yayımcılık

Main Topics:

Temiz Üretim Teknolojileri

Journal:

Black Sea Journal of Engineering and Science Vol.8 Issue 5, pp.1595-1604

Document Type:

Article

Publication Date:

9/2025

Document Language:

English

Document ID (Org No.):

2001354574

pISSN:

2619-8991

Reactive red 120

Response surface methodology

Parameter optimization

Color removal

FeCl₃

Jar testReactive red 120

Response surface methodology

Parameter optimization

Color removal

FeCl₃

Jar test

Issues

Article Details

Authors: Sevtap Tırınk

Publisher: Karyay Karadeniz Yayımcılık

Main Topics: Temiz Üretim Teknolojileri

Journal: Black Sea Journal of Engineering and Science Vol.8 Issue 5, pp.1595-1604

Document Type: Article

Publication Date: 9/2025

Document Language: English

Document ID (Org No.): 2001354574

pISSN: 2619-8991

Issues

Authors:

Sevtap Tırınk

Publisher:

Karyay Karadeniz Yayımcılık

Main Topics:

Temiz Üretim Teknolojileri

Journal:

Black Sea Journal of Engineering and Science Vol.8 Issue 5, pp.1595-1604

Document Type:

Article

Publication Date:

9/2025

Document Language:

English

Document ID (Org No.):

2001354574

pISSN:

2619-8991