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
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı ELECTRONIC JOURNAL OF BIOTECHNOLOGY
Dergi ISSN 0717-3458 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 09-2010
Cilt No 13
Sayı 5
Sayfalar 20 / 0
DOI Numarası 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. © 2010 by Pontificia Universidad Católica de Valparaíso, Chile.
Anahtar Kelimeler
Circinella sp. | Equilibrium | Kinetic | Nickel