Photocatalytic Treatment of Turkey Slaughterhouse Wastewater and Optimization by Taguchi Method

Gamze Doğdu Okçu; Nazmiye Ebru Şen

Article Details

Photocatalytic Treatment of Turkey Slaughterhouse Wastewater and Optimization by Taguchi Method

Authors:

Gamze Doğdu Okçu | Nazmiye Ebru Şen

Publisher:

Osmaniye Korkut Ata Üniversitesi

Main Topics:

Çevre Mühendisliği

Journal:

Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.6 Issue 1, pp.1-20

Document Type:

Article

Publication Date:

10/2023

Document Language:

Turkish

Document ID (Org No.):

2001284824

pISSN:

2687-3729

Keywords:

Abstract:

 Heterogeneous photocatalysis is a promising green technology in the treatment of raw turkey slaughterhouse wastewater from the poultry industry, which contains high levels of organic pollutants such as chemical oxygen demand COD, nitrogen and phosphorus, and its treatment potential has not been adequately studied until now. In this work, the photocatalytic degradation of turkey slaughterhouse wastewater was studied by applying a response surface methodology RSM based on Taguchi method. For this purpose, critical operating parameters; photocatalyst concentration 0,5-3 gL, A, pH 2-10, B, hydrogen peroxide H2O2 concentration 0-20 mmolL, C, lamp type UVA, UVC, D, and catalyst type TiO2, ZnO, E were optimized. These experimental factors were handled in mixed levels 43 22, and operation parameters were optimized by the application of L16 tests. According to ANOVA results, catalyst and H2O2 concentration and pH parameters have the most important effects on COD removal from wastewater. Optimum conditions were obtained as: initial catalyst dosage of 0,5 gL Level 1, pH of 2 Level 1, H2O2 concentration of 10 mmolL Level 3, lamp type as UVA Level 1 and catalyst type as ZnO Level 2. Under these conditions, experimental and estimated COD removal efficiencies were obtained as 62 and 63, respectively. In addition, in the study, electrical energy consumption is the most significant factor that creates the operating cost, while the chemical and electrical energy costs are 1,315 TL and 32,325 TL under optimum conditions.

 Heterogeneous photocatalysis is a promising green technology in the treatment of raw turkey slaughterhouse wastewater from the poultry industry, which contains high levels of organic pollutants such as chemical oxygen demand COD, nitrogen and phosphorus, and its treatment potential has not been adequately studied until now. In this work, the photocatalytic degradation of turkey slaughterhouse wastewater was studied by applying a response surface methodology RSM based on Taguchi method. For this purpose, critical operating parameters; photocatalyst concentration 0,5-3 gL, A, pH 2-10, B, hydrogen peroxide H2O2 concentration 0-20 mmolL, C, lamp type UVA, UVC, D, and catalyst type TiO2, ZnO, E were optimized. These experimental factors were handled in mixed levels 43 22, and operation parameters were optimized by the application of L16 tests. According to ANOVA results, catalyst and H2O2 concentration and pH parameters have the most important effects on COD removal from wastewater. Optimum conditions were obtained as: initial catalyst dosage of 0,5 gL Level 1, pH of 2 Level 1, H2O2 concentration of 10 mmolL Level 3, lamp type as UVA Level 1 and catalyst type as ZnO Level 2. Under these conditions, experimental and estimated COD removal efficiencies were obtained as 62 and 63, respectively. In addition, in the study, electrical energy consumption is the most significant factor that creates the operating cost, while the chemical and electrical energy costs are 1,315 TL and 32,325 TL under optimum conditions.

 Heterogeneous photocatalysis is a promising green technology in the treatment of raw turkey slaughterhouse wastewater from the poultry industry, which contains high levels of organic pollutants such as chemical oxygen demand COD, nitrogen and phosphorus, and its treatment potential has not been adequately studied until now. In this work, the photocatalytic degradation of turkey slaughterhouse wastewater was studied by applying a response surface methodology RSM based on Taguchi method. For this purpose, critical operating parameters; photocatalyst concentration 0,5-3 gL, A, pH 2-10, B, hydrogen peroxide H2O2 concentration 0-20 mmolL, C, lamp type UVA, UVC, D, and catalyst type TiO2, ZnO, E were optimized. These experimental factors were handled in mixed levels 43 22, and operation parameters were optimized by the application of L16 tests. According to ANOVA results, catalyst and H2O2 concentration and pH parameters have the most important effects on COD removal from wastewater. Optimum conditions were obtained as: initial catalyst dosage of 0,5 gL Level 1, pH of 2 Level 1, H2O2 concentration of 10 mmolL Level 3, lamp type as UVA Level 1 and catalyst type as ZnO Level 2. Under these conditions, experimental and estimated COD removal efficiencies were obtained as 62 and 63, respectively. In addition, in the study, electrical energy consumption is the most significant factor that creates the operating cost, while the chemical and electrical energy costs are 1,315 TL and 32,325 TL under optimum conditions.

 Heterojen fotokataliz, kimyasal oksijen ihtiyacı KOİ, azot ve fosfor gibi yüksek seviyede organik kirleticiler içeren kanatlı endüstrisinden ham hindi kesimhanesi atık sularının arıtımında umut verici yeşil bir teknoloji olup arıtım potansiyeli şimdiye kadar yeterince incelenmemiştir. Bu çalışmada, hindi kesimhanesi atık suyunun fotokatalitik bozunması, Taguchi yöntemine dayalı bir yanıt yüzeyi metodolojisi RSM uygulanarak incelenmiştir. Bu amaçla, kritik çalışma parametreleri; fotokatalizör konsantrasyonu 0,5-3 gL, A, pH 2-10, B, hidrojen peroksit H2O2 konsantrasyonu 0-20 mmolL, C, lamba türü UVA, UVC, D ve katalizör tipi TiO2, ZnO, E optimize edilmiştir. Bu deneysel faktörler karışık seviyelerde 43 22 ele alınmış ve L16 testleri uygulanarak çalışma parametreleri optimize edilmiştir. ANOVA sonuçlarına göre katalizör ve H2O2 konsantrasyonu ile pH parametreleri atık sudan KOİ gideriminde en önemli etkiye sahiptir. Optimum koşullar şu şekilde elde edilmiştir: başlangıç katalizör dozu 0,5 gL Seviye 1, pH 2 Seviye 1, H2O2 konsantrasyonu 10 mmolL Seviye 3, lamba tipi UVA Seviye 1 ve katalizör tipi ZnO Seviye 2. Bu şartlar altında deneysel ve tahmini KOİ giderim verimleri sırasıyla 62 ve 63 olarak elde edilmiştir. Ayrıca yapılan çalışmada, işletme maliyetini oluşturan en önemli faktör elektrik enerjisi tüketimi olurken kimyasal ve elektrik enerjisi maliyeti optimum koşullar altında 1,315 TL ve 32,325 TL olarak elde edilmiştir.

Article Details

Photocatalytic Treatment of Turkey Slaughterhouse Wastewater and Optimization by Taguchi Method

Authors:

Gamze Doğdu Okçu | Nazmiye Ebru Şen

Publisher:

Osmaniye Korkut Ata Üniversitesi

Main Topics:

Çevre Mühendisliği

Journal:

Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.6 Issue 1, pp.1-20

Document Type:

Article

Publication Date:

10/2023

Document Language:

Turkish

Document ID (Org No.):

2001284824

pISSN:

2687-3729

Poultry industry

Turkey wastewater

Photocatalysis

Taguchi method

Optimization

Kanatlı endüstrisi

Hindi atık suyu

Fotokataliz

Taguchi metodu

Optimizasyon

Issues

Article Details

Authors: Gamze Doğdu Okçu | Nazmiye Ebru Şen

Publisher: Osmaniye Korkut Ata Üniversitesi

Main Topics: Çevre Mühendisliği

Journal: Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.6 Issue 1, pp.1-20

Document Type: Article

Publication Date: 10/2023

Document Language: Turkish

Document ID (Org No.): 2001284824

pISSN: 2687-3729

Issues

Authors:

Gamze Doğdu Okçu | Nazmiye Ebru Şen

Publisher:

Osmaniye Korkut Ata Üniversitesi

Main Topics:

Çevre Mühendisliği

Journal:

Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.6 Issue 1, pp.1-20

Document Type:

Article

Publication Date:

10/2023

Document Language:

Turkish

Document ID (Org No.):

2001284824

pISSN:

2687-3729