Sulu Çözeltilerden Lewatit S-108 Katyon Değişim Reçinesiyle Bakır İyonlarının Adsorpsiyonu

Emir TOSUN, Mehmet Kayra TANAYDIN, Gülistan Deniz TURHAN ÖZDEMİR, Nizamettin DEMİRKIRAN
1.133 187

Öz


Bu çalışmada, Lewatit S-108 katyon değişim reçinesi kullanılarak bakır iyonlarının adsorpsiyonu incelenmiştir. Adsorpsiyon prosesi üzerine bakır iyonlarının başlangıç derişimi, çözeltinin başlangıç pH değeri, reçine miktarı, temas süresi ve karıştırma hızının etkileri çalışılmıştır. Reçine miktarı arttığı zaman adsorplanan bakır miktarının arttığı belirlenmiştir. En fazla adsorpsiyonun doğal pH değerlerinde meydana geldiği gözlenmiştir. Çözelti başlangıç derişimi, başlangıç pH değeri, temas süresi, karıştırma hızı ve reçine miktarı sırasıyla 0.005 mol/L, doğal (5.15), 90 dk, 250 rpm ve 6 g/L iken bakır adsorpsiyon verimi % 99.5 olarak gerçekleşmiştir. Adsorpsiyon prosesiyle ilgili izoterm ve kinetik analiz yapılmıştır. Denge verilerinin Langmuir izoterm modeline uyduğu ve prosesin kinetiğinin yalancı ikinci mertebe kinetik model ile tanımlanabileceği belirlenmiştir.

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