Behzat BALCI, Fatma Elçin ERKURT, Emine Su TURAN

Halk sağlığı için tehdit oluşturan fenolün sulardan düşük maliyetli bir aktif karbon ile giderimi

Bu çalışmada, sucul canlılar ve halk sağlığı için tehdit oluşturan fenolün sulardan gideriminde, düşük maliyetli bir adsorbent olarak Eucalyptus camaldulensis kökenli aktif karbon ECAK kullanılmıştır. Adsorpsiyon süreci üzerine temas zamanı, pH, sıcaklık, ECAK dozu ve başlangıç fenol konsantrasyonu gibi çeşitli parametrelerin etkisi araştırılmıştır. Yapılan çalışmalar, adsorpsiyon süreci üzerine pH’ın, ECAK dozunun ve başlangıç fenol konsantrasyonunun önemli ölçüde etki ettiğini göstermiştir. Adsorpsiyon kapasitesi 500 mg/L fenol için pH 5’de, 20 °C’de ve 1 gram ECAK dozu ile 107,25 mg/g olarak bulunmuştur. Maksimum adsorpsiyon kapasitesi Langmuir izotermi tarafından 136,5 mg/g olarak tahmin edilmiştir. Freundlich izotermi adsorpsiyon sürecini 0,997 korelasyon katsayısı ile başarılı bir şekilde tanımlanmıştır

Anahtar Kelimeler:

Eucalyptus camaldulensis, fenol, adsorpsiyon, langmuir, freundlichi

Removal of phenol, threat to public health, from water by a low cost activated carbon

In this study, a low cost activated carbon which based on Eucalyptus camaldulensis barks ECAC was used for the removal of phenol, threat to aquatic organisms and public health, from water. The effect of contact time, temperature, ECAC dosage and initial phenol concentration on adsorption process were investigated. It was found that pH, ECAC dosage and initial phenol concentration had a significant effect on adsorption process. The adsorption capacity was found to be 107.25 mg/g for 500 mg/L phenol at pH 5, 20 °C with 1 g ECAC dosage. The maximum adsorption capacity was predicted 136.5 mg/g by Langmuir isotherm. Freundlich isotherm described the adsorption process successfully by a 0.997 correlation coefficient

Keywords:

Eucalyptus camaldulensis, phenol, adsorption, langmuir, freundlich,

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