Sıfır Değerlikli Alüminyumun Aktive Ettiği Persülfat ile Reactive Yellow 145’in oksidasyonu: Proses şartlarının optimizasyonu

Yıl 2021, Cilt: 11 Sayı: 2, 613 - 628, 15.12.2021

Nevim Genç , Elif Durna , Şeyda Aydın

https://doi.org/10.31466/kfbd.977952

Öz

Sıfır değerlikli alüminyum (ZVAl) çok iyi elektron verici özelliğe sahip olması dolayısı ile atıksudaki pek çok organik ve inorganik kirleticinin yükseltgenme veya indirgenme yolu ile giderilmesinde etkili bir metaldır. ZVAl tarafından verilen elektronlar, ortamda bulunan oksidantlar tarafından alınması sonucu oluşan güçlü radikal türleri ile yükseltgenme tepkimelerine veya bu elektronların kirleticiler tarafından direkt alınarak indirgenme tepkimelerine yol açarak kirleticiyi parçalamaktadır. Bu çalışmada Reactive Yellow 145’in ZVAl ile aktive olmuş persülfat ile oksidasyonu incelenmiştir. Oksidasyon prosesinin işletim koşulları Taguchi Deney Tasarım yaklaşımı ile optimize edilmiştir. Optimum koşullar 60 dakika oksidasyon süresi, 0,8 g/L ZVAl dozu, pH 10 ve 15 g/L persülfat dozu olarak belirlenmiştir. Optimum koşullarda Reactive Yellow 145 giderim verimi %76,19 olarak belirlenmiş olup modelin öngördüğü %77,22 giderim ile uyum içindedir. Oksidasyonu etkileyen her bir parametrenin Reactive Yellow 145 giderim verimine etkisi ANOVA ile açıklanmıştır. Verimi etkileyen en önemli parametrenin % 80,06 katkı oranı ile pH olduğu belirlenmiştir.

Anahtar Kelimeler

Sıfır değerlikli alüminyum, persülfat, optimizasyon, Reactive Yellow 145

Destekleyen Kurum

Kocaeli Üniversitesi Bilimsel Araştırma Projeleri Birimi

Proje Numarası

2021- 2621

Teşekkür

Bu çalışma Kocaeli Üniversitesi, BAP birimi tarafından 2021- 2621 nolu projesi ile desteklenmiştir. Yazarlar destek için teşekkür etmektedirler

Oxidation of Reactive Yellow 145 by Zero Valent Aluminum Activated Persulfate: Optimization of process conditions

Öz

Zero-valent aluminum (ZVAl) is an effective metal for removing many organic and inorganic pollutants from wastewater by oxidation or reduction reactions due to its high electron-donating properties. Electrons given by ZVAl, break down the pollutant by causing oxidation reactions with strong radical species formed as a result of taken by oxidants or reduction reactions by being directly taken by pollutants. In this study, the oxidation of Reactive Yellow 145 with ZVAl-activated persulfate was investigated. The operating conditions of the oxidation process were optimized with the Taguchi Experimental Design. Optimum conditions were determined as oxidation time of 60 minutes, ZVAl dose of 0.8 g/L, pH of 10 and persulfate dose of 15 g/L. In optimum conditions, the removal efficiency of Reactive Yellow 145 was determined as 76.19%, which is in compliance with the 77.22% removal predicted by the model. The effect of each parameter on Reactive Yellow 145 removal efficiency was explained by ANOVA. It was determined that the most important parameter affecting the removal efficiency was pH with an contribution rate of 80.06%.

Anahtar Kelimeler

Zero valence aluminum, persulfate, optimization, Reactive Yellow 145.

Proje Numarası

2021- 2621

Kaynakça

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