Process optimization of biosorption Hg (II), Cu (II) and Ni (II) ions onto dead anaerobic biomass using a two-level full factorial design and response surface methodology, batch systems
Other Title(s)
عملية تحسين الامتزازا الحيوي لأيونات الزئبق ، النحاس و النيكل باستخدام الكتلة اللاهوائية الميتة باستخدام اثنين من مستوى كامل المضروب و تصميم و منهجية الاستجابة السطحية، نظام الدفعة
Author
Source
Nahrain University-College of Engineering Journal
Issue
Vol. 18, Issue 2 (31 Dec. 2015), pp.328-342, 15 p.
Publisher
Nahrain University College of Engineering
Publication Date
2015-12-31
Country of Publication
Iraq
No. of Pages
15
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Abstract EN
Dead anaerobic biomass prepared from drying bed wastewater treatment plant were used as adsorbents for the biosorption studies of mercury, copper and nickel ions from synthetic wastewater.
The main and interactive effects on uptake of Hg(II), Cu(II) and Ni(II) in this study are investigated through the model equations designed by a two-level full factorial design.
Experiments designed by central composite design were carried out and the process response was modeled.
Heavy metals removal efficiency and uptake have sequence order Hg(II) > Cu(II) > Ni(II) under tested conditions, Hg(II) offers the strongest component that able to displace Cu(II) and Ni(II) from their sites, while Ni(II) ions was the weakest adsorbed component.
Best removal efficiencies were 96.2, 90.3 and 82.4 when temperature 400C, pH 6, initial metal ion concentration 10 mg/l, biomass loading 6 g/l, contact time 180 min, and 200 rpm for Hg(II), Cu(II) and Ni(II) respectively.
The results predicted using factorial regression model showed high values of regression coefficients (R2) 0.945 indicating good agreement with experimental data.
The main biosorption mechanisms were complexation and physical adsorption onto natural active functional groups.
It is observed that biosorption of these metals was a surface process.
American Psychological Association (APA)
Rida, Muhannad Jasim Muhammad. 2015. Process optimization of biosorption Hg (II), Cu (II) and Ni (II) ions onto dead anaerobic biomass using a two-level full factorial design and response surface methodology, batch systems. Nahrain University-College of Engineering Journal،Vol. 18, no. 2, pp.328-342.
https://search.emarefa.net/detail/BIM-819123
Modern Language Association (MLA)
Rida, Muhannad Jasim Muhammad. Process optimization of biosorption Hg (II), Cu (II) and Ni (II) ions onto dead anaerobic biomass using a two-level full factorial design and response surface methodology, batch systems. Nahrain University-College of Engineering Journal Vol. 18, no. 2 (Dec. 2015), pp.328-342.
https://search.emarefa.net/detail/BIM-819123
American Medical Association (AMA)
Rida, Muhannad Jasim Muhammad. Process optimization of biosorption Hg (II), Cu (II) and Ni (II) ions onto dead anaerobic biomass using a two-level full factorial design and response surface methodology, batch systems. Nahrain University-College of Engineering Journal. 2015. Vol. 18, no. 2, pp.328-342.
https://search.emarefa.net/detail/BIM-819123
Data Type
Journal Articles
Language
English
Notes
Record ID
BIM-819123