Biosorption of Cr VI by Free and Immobilized Pediastrum boryanum biomass Equilibrium Kinetic and Thermodynamic Studies
  
Yazarlar (7)
Tülay Baykal Özer
Abel Udu Udoh
Dilek Yalçın Duygu
Aydın Akbulut
Hacettepe Üniversitesi, Türkiye
Gülay Bayramoğlu
Gazi Üniversitesi, Türkiye
Mehmet Yakup Arıca
Gazi Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Environmental Science and Pollution Research
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce Basım Tarihi 08-2012
Cilt / Sayı / Sayfa 19 / 0 / 2983–2993 DOI 10.1007/s11356-012-0809-0
Özet
Background and purpose The biosorption of Cr(VI) from aqueous solution has been studied using free and immobilized Pediastrum boryanum cells in a batch system. The algal cells were immobilized in alginate and alginate–gelatin beads via entrapment, and their algal cell free counterparts were used as control systems during biosorption studies of Cr(VI). Methods The changes in the functional groups of the biosorbents formulations were confirmed by Fourier transform infrared spectra. The effect of pH, equilibrium time, initial concentration of metal ions, and temperature on the biosorption of Cr(VI) ion was investigated. Results The maximum Cr(VI) biosorption capacities were found to be 17.3, 6.73, 14.0, 23.8, and 29.6 mg/g for the free algal cells, and alginate, alginate–gelatin, alginate–cells, and alginate–gelatin–cells …
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