Equilibrium thermodynamic and kinetic investigations on biosorption of arsenic from aqueous solution by algae Maugeotia genuflexa biomass     
Yazarlar (4)
Ahmet Sarı
Karadeniz Teknik Üniversitesi, Türkiye
Doç. Dr. Özgür Doğan ULUÖZLÜ Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Prof. Dr. Mustafa TÜZEN Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Betül Sakınan
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Chemical Engineering Journal
Dergi ISSN 1385-8947 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 02-2011
Cilt No 167
Sayı 1
Sayfalar 155 / 161
DOI Numarası 10.1016/j.cej.2010.12.014
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S1385894710012180
Özet
This study is focused on the investigation of the equilibrium, thermodynamics and kinetics of arsenic(III) biosorption from aqueous solution by dead green algae (Maugeotia genuflexa) biomass. Optimum biosorptin conditions were determined under the optimum pH, biomass concentration, contact time, and temperature. The equilibrium data were applied to the Langmuir, Freundlich and Dubinin–Radushkevich (D–R) isotherm models. From the Langmuir model, the maximum monolayer biosorption capacity of the biosorbent was found to be 57.48mg/g at pH 6, biomass concentration 4g/L, contact time 60min, and temperature 20°C. The calculated mean biosorption energy (10.2kJ/mol) using D–R model indicated that the biosorption process was carried out via chemical ion-exchange. Biosorbent could be regenerated using 0.5M HCI solution, with up to 96% recovery and permitted a slightly decrease about 20% in …
Anahtar Kelimeler
M. genuflexa | As(III) | Biosorption | Equilibrium | Thermodynamics | Kinetics