Effects of biosorption parameter kinetics isotherm and thermodynamics for Ni II biosorption from aqueous solution by Circinella sp
   
Yazarlar (5)
Şenol Alpat Dokuz Eylül Üniversitesi, Türkiye
Sibel Kılınç Alpat Dokuz Eylül Üniversitesi, Türkiye
Prof. Dr. Bilge Hilal ÇADIRCI Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Özge Özbayrak Dokuz Eylül Üniversitesi, Türkiye
İhsan Yaşa Ege Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı ELECTRONIC JOURNAL OF BIOTECHNOLOGY (Q4)
Dergi ISSN 0717-3458 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 09-2010
Cilt / Sayı / Sayfa 13 / 5 / 20–0 DOI 10.2225/vol13-issue5-fulltext-20
Makale Linki http://www.ejbiotechnology.info/content/vol13/issue5/full/20/index.html
Özet
Circinella sp. was employed as a biosorbent for removal of Ni (II) from aqueous solution. The biosorption kinetics and isotherms were investigated. The effect of several parameters, such as biosorbent dosage, contact time, initial concentration, pH and temperature, on biosorption process was evaluated. The kinetic studies indicated that the biosorption followed pseudo-second order kinetic model. Biosorption behaviour of Ni (II) on Circinella sp. was expressed by both Langmuir and Freundlich isotherms. The equilibrium data fit better to the Langmuir model compared to the Freundlich model in concentration range studied (1.0-3.0 mM). The thermodynamic parameters (ΔG 0, ΔH 0 and ΔS 0) were also determined, and it was found that the Ni (II) biosorption by Circinella sp. was spontaneous and endothermic in nature.
Anahtar Kelimeler
Circinella sp. | Equilibrium | Kinetic | Nickel