Treatment of mixed dye wastewater by peroxy-coagulation using stainless steel and graphite electrodes

Dilek Gümüş

Article Details

Treatment of mixed dye wastewater by peroxy-coagulation using stainless steel and graphite electrodes

Authors:

Dilek Gümüş

Publisher:

Gumushane University

Main Topics:

Mühendislik

Journal:

Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.13 Issue 2, pp.491-499

Document Type:

Article

Publication Date:

4/2023

Document Language:

Turkish

Document ID (Org No.):

2001287773

pISSN:

2146-538X

Keywords:

Abstract:

 Most of the dyed wastewater is toxic and carcinogenic to living things. Due to their complex structure, they are very difficult to treat with traditional purification methods. Various electrochemical methods have been developed to treat dyed wastewater. In this study, color and COD removal from synthetic wastewater formed by mixed dyes was investigated using peroxy-coagulation method. Stainless steel and graphite electrodes were used as anode and cathode, respectively. The effects of basic operating parameters such as initial pH, current density and electrolysis time were investigated. Taguchi experimental design method L9 orthogonal array OA was applied to examine the effects of the parameters on the electrochemical system. The performance of the system, Signal-to-noise SN ratio the larger the better and analysis of variance ANOVA were evaluated to compare the relative magnitude of the effect of factors on the response value. Optimum operating conditions were found as initial pH 3, current 100 mA and reaction time 60 minutes. Under these conditions, over 99 color removal and 95 COD removal were achieved, and the total energy consumption was calculated as approximately 25 kWhkgCOD.

 Most of the dyed wastewater is toxic and carcinogenic to living things. Due to their complex structure, they are very difficult to treat with traditional purification methods. Various electrochemical methods have been developed to treat dyed wastewater. In this study, color and COD removal from synthetic wastewater formed by mixed dyes was investigated using peroxy-coagulation method. Stainless steel and graphite electrodes were used as anode and cathode, respectively. The effects of basic operating parameters such as initial pH, current density and electrolysis time were investigated. Taguchi experimental design method L9 orthogonal array OA was applied to examine the effects of the parameters on the electrochemical system. The performance of the system, Signal-to-noise SN ratio the larger the better and analysis of variance ANOVA were evaluated to compare the relative magnitude of the effect of factors on the response value. Optimum operating conditions were found as initial pH 3, current 100 mA and reaction time 60 minutes. Under these conditions, over 99 color removal and 95 COD removal were achieved, and the total energy consumption was calculated as approximately 25 kWhkgCOD.

 Most of the dyed wastewater is toxic and carcinogenic to living things. Due to their complex structure, they are very difficult to treat with traditional purification methods. Various electrochemical methods have been developed to treat dyed wastewater. In this study, color and COD removal from synthetic wastewater formed by mixed dyes was investigated using peroxy-coagulation method. Stainless steel and graphite electrodes were used as anode and cathode, respectively. The effects of basic operating parameters such as initial pH, current density and electrolysis time were investigated. Taguchi experimental design method L9 orthogonal array OA was applied to examine the effects of the parameters on the electrochemical system. The performance of the system, Signal-to-noise SN ratio the larger the better and analysis of variance ANOVA were evaluated to compare the relative magnitude of the effect of factors on the response value. Optimum operating conditions were found as initial pH 3, current 100 mA and reaction time 60 minutes. Under these conditions, over 99 color removal and 95 COD removal were achieved, and the total energy consumption was calculated as approximately 25 kWhkgCOD.

 Boyalı atıksuların çoğu canlılar için toksik ve kanserojendir. Karmaşık yapılarından dolayı geleneksel arıtma yöntemleriyle arıtılmaları oldukça güçtür. Boyalı atıksuları arıtmak için çeşitli elektrokimyasal yöntemler geliştirilmiştir. Bu çalışmada karışık boyaların oluşturduğu sentetik atıksudan renk ve KOİ giderimi peroksi-koagülasyon yöntemi kullanılarak incelenmiştir. Anot ve katot olarak sırasıyla paslanmaz çelik ve grafit elektrotlar kullanılmıştır. Başlangıç pH, akım yoğunluğu ve elektroliz süresi gibi temel işletme parametrelerinin etkisi incelenmiştir. Parametrelerin elektrokimyasal sistem üzerindeki etkilerini incelemek için Taguchi deneysel tasarım yöntemi L9 orthogonal array OA uygulandı. Sistemin performansı, Sinyalgürültü SN oranı ne kadar büyükse o kadar iyidir ve varyans analizi ANOVA, faktörlerin yanıt değeri üzerindeki etkisinin göreceli olarak büyüklüğünü karşılaştırmak için değerlendirildi. Optimum çalışma koşulları başlangıç pHı 3, akım 100 mA ve reaksiyon süresi 60 dakika olarak bulundu. Bu koşullarda 99un üzerinde renk giderimi ve 95 KOİ giderimi elde edilmiş ve toplam enerji tüketimi yaklaşık 25 kWhkgKOİ olarak hesaplanmıştır.

Article Details

Treatment of mixed dye wastewater by peroxy-coagulation using stainless steel and graphite electrodes

Authors:

Dilek Gümüş

Publisher:

Gumushane University

Main Topics:

Mühendislik

Journal:

Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.13 Issue 2, pp.491-499

Document Type:

Article

Publication Date:

4/2023

Document Language:

Turkish

Document ID (Org No.):

2001287773

pISSN:

2146-538X

Dyed wastewater

Stainless steel anode

Peroxy coagulationBoyalı atıksu

Paslanmaz çelik anot

Peroksi koagülasyon

Issues

Article Details

Treatment of mixed dye wastewater by peroxy-coagulation using stainless steel and graphite electrodes

Authors: Dilek Gümüş

Publisher: Gumushane University

Main Topics: Mühendislik

Journal: Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.13 Issue 2, pp.491-499

Document Type: Article

Publication Date: 4/2023

Document Language: Turkish

Document ID (Org No.): 2001287773

pISSN: 2146-538X

Dyed wastewater

Stainless steel anode

Peroxy coagulationBoyalı atıksu

Paslanmaz çelik anot

Peroksi koagülasyon

Issues

Authors:

Dilek Gümüş

Publisher:

Gumushane University

Main Topics:

Mühendislik

Journal:

Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.13 Issue 2, pp.491-499

Document Type:

Article

Publication Date:

4/2023

Document Language:

Turkish

Document ID (Org No.):

2001287773

pISSN:

2146-538X