Sulu Çözeltideki Ağır Metallerin Uçucu Kül Kullanarak Giderimi: Çan Termik Santrali KB Türkiye Örneği

Yıl 2017, Cilt: 7 Sayı: 1, 291 - 298, 01.01.2017

Deniz Şanlıyüksel Yücel

Öz

Bu çalışmada ucuz bir adsorbent olan uçucu külün sulu çözeltideki ağır metallerin gideriminde etkinliğinin belirlenmesi amaçlanmıştır. Bu amaçla akışkan yataklı Çan Termik Santrali uçucu külleri adsorbent olarak kullanılarak sulu çözeltideki bazı metal iyonlarını Cd, Co, Cr, Cu, Ni, Mn, Pb ve Zn adsorpsiyon kapasitesi oda sıcaklığında kesikli deneyler ile saptanmıştır. Deneysel bulgular ile uçucu külün en yüksek adsorpsiyon kapasitesinin Cu %67.29 ve Cd %53.66 metal iyonlarında olduğu gözlenmiştir. Uçucu kül kullanarak sulu çözeltideki metal giderimi dizilimi Cu> Cd> Pb> Zn> Cr> Co> Mn> Ni şeklindedir. Nötr pH koşulları ve az miktardaki uçucu külün sulu çözeltideki metal gideriminde uygun bir adsorbent olarak kullanılabileceği tespit edilmiştir

Anahtar Kelimeler

Adsorpsiyon, Sulu çözelti, Çan termik santrali, Uçucu kül

Removal of Heavy Metals from Aqueous Solutıon Using Fly Ash: Çan Thermal Power Plant, NW Turkey as a Case Study

Öz

This study was conducted to investigate use of fly ash created by fluidized bed combustion Can Thermal Power Plant for the removal of heavy metals from aqueous solutions as a low-cost adsorbent. The adsorption capacity of metal ions Cd, Co, Cr, Cu, Ni, Mn, Pb and Zn from aqueous solution onto coal fly ash was studied in batch experiments, which were carried out at room temperature to investigate the efficiency of the adsorbent for removing selected metals. The highest adsorption capacities of fly ash were determined for Cu and Cd metals, with values of 67.29% and 53.66%, respectively. The following metal removal capacity of fly ash was determined: Cu > Cd > Pb > Zn > Cr > Co > Mn > Ni. The ash originating from coal combustion thermal power plant may be considered a viable adsorbent for metal ions from aqueous solutions at neutral pH conditions and with small amounts of fly ash.

Anahtar Kelimeler

Adsorption, Aqueous solution, Can thermal power plant, Fly ash

Kaynakça

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