Adsorption of a Dye on Plant Based Adsorbent: An Optimization Study

Abstract

In this study, methylene blue was adsorbed using the adsorbent obtained from Rumex Crispus L. plant stems. Taguchi Experiment design was used to optimize the adsorption conditions. The optimized conditions in the study are temperature, initial concentration, pH, and particle size. ANOVA analysis was performed to determine the effectiveness of the parameters. From the results, optimum levels were determined as 20 oC for temperature, 120 mg/L for concentration, pH=6.5, -0.425 mm for particle size. The estimated amount of qt under optimum conditions was calculated as 65.58 mg/g. The most important contribution to the adsorption process by ANOVA analysis was pH with 62.8%, initial concentration with 29.6%, temperature with 5.4%, and particle size with 2.3%.

Keywords

• Adsorption
• Methylene Blue
• Optimization
• Taguchi Methodology
• ANOVA

Bitki Bazlı Adsorbent Üzerine Boyar Madde Adsorpsiyonu: Bir Optimizasyon Çalışması

Abstract

Bu çalışmada Rumex Crispus L. bitki gövdelerinden elde edilen adsorbent üzerine metilen mavisi adsorbe edilmiştir. Adsorpsiyon şartlarını optimize edebilmek için Taguchi Deney tasarımı kullanılmıştır. Çalışmada optimize edilen şartlar: sıcaklık, başlangıç boya konsantrasyonu, pH ve tanecik boyutudur. Parametrelerin ne ölçüde etkin olduğunu belirlemek için ise ANOVA analizi yapılmıştır. Mevcut çalışmadan elde edilen sonuçlardan optimum şartlar; sıcaklık, 20 oC, başlangıç boya konsantrasyonu,120 mg/L, pH=6.5 ve tanecik boyutu 0.425 mm olarak tespit edilmiştir. Optimum şartlarda tahmin edilen qt miktarı 65.58 mg/g olarak hesaplanmıştır. ANOVA analizi ile adsorpsiyon prosesine en önemli katkıyı %62.8 ile pH, %29.6 ile başlangıç boya konsantrasyonu, %5.4 ile sıcaklık ve %2.3 ile tanecik boyutu sağlamıştır.

Keywords

• Adsorpsiyon
• Metil Mavisi
• Optimizasyon
• Taguchi Metodu
• ANOVA

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