Volume 5, Issue 4 (15 2013)                   ijhe 2013, 5(4): 489-496 | Back to browse issues page

XML Persian Abstract Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Rakhshaee R, Zamiraee Z, Baghipour S, Panahandeh M. Removal of “Basic Blue 3” using Azolla Filiculoides from Aqueous Solutions Along with Potentiometric Study of Cell Wall. ijhe. 2013; 5 (4) :489-496
URL: http://ijhe.tums.ac.ir/article-1-7-en.html
1- , Roohan_Rakhshaee@yahoo.com
Abstract:   (7528 Views)
MicrosoftInternetExplorer4 Background and Objectives: Azolla Filiculoides as a non-living fern was used in a batch system to remove "Basic Blue 3", which is a cationic dye and a carcinogenic agent.
Materials and Methods: We used a batch system by applying certain concentrations of dye contaminant and in the presence of a certain amount of adsorbent under optimum conditions. The main groups presenting in the Azolla cell wall were evaluated by acidification and alkalization of Azolla's media and then potentiometric titration with standard basic and acidic solutions.
Results: It was observed that the removal efficiency of dye using non-living Azolla in accordance with the Langmuir isotherms was 82% for the initial dye concentration of 200 mg/lit under reaction conditions consisting of contact time 6 h, pH= 6, temperature 25 ˚C, and dose 5 g/lit. Qmax (maximum uptake capacity) by the activated Azolla at three temperatures 5, 25 and 50 ˚C was 0.732, 0.934, and 1.176 mmol/g respectively. ΔG (Gibbs free energy changes) was obtained for these temperatures as -0.457, -0.762, and -1.185 kJ/mol respectively.
Conclusion: Removal of basic blue 3 using Azolla is an economically and effective method.

Full-Text [PDF 1032 kb]   (2829 Downloads)    
Type of Study: Research | Subject: General
Received: 2011/04/23 | Accepted: 2011/07/23 | Published: 2013/07/13

Add your comments about this article : Your username or Email:

Send email to the article author

© 2020 All Rights Reserved | Iranian Journal of Health and Environment

Designed & Developed by : Yektaweb