Bioremoval of cyanide from aqueous solution using Tectona grandis leaves powder: a potential bioadsorbent
by Naveen Dwivedi; Chandrajit Balomajumder; Prasenjit Mondal
International Journal of Environmental Technology and Management (IJETM), Vol. 19, No. 3/4, 2016

Abstract: In the present study, Tectona grandis leaves powder has been investigated as a potential bioadsorbent for the removal of cyanide from synthetic wastewater. Effects of significant process parameters on the percentage removal of cyanide are evaluated to get the most suitable operating conditions. Under the optimum conditions; pH 7, contact time 120 min, adsorbent dose 20 g/L; around 86.43% cyanide removal is obtained with the initial cyanide concentration of 100 mg/L. Kinetic evaluation indicates that the adsorption of cyanide ions onto the Tectona grandis leaves powder is best fitted by the pseudo-second order kinetic model. However, it can also be explained by intra-particle diffusion model. The equilibrium assessment illustrates that the Langmuir model is the best fitted model for the experimental data, which attains a maximum adsorption capacity of 18.45 mg/g. Therefore, it seems that the Tectona grandis leaves powder has the potential to be a low-cost bioadsorbent for removal of cyanide from water and wastewater.

Online publication date: Mon, 13-Feb-2017

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Environmental Technology and Management (IJETM):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com