Home | My Profile | Contact Us
Research Trends Products  |   order gateway  |   author gateway  |   editor gateway  
Register | Forgot Password

Author Resources
 Author Gateway
 Article submission guidelines

Editor Resources
 Editor/Referee Gateway

 Regional Subscription Agents/Distributors
Current Topics in Biotechnology   Volumes    Volume 8 
Biosorption of phosphate by novel biomaterials: an asset against eutrophication of water resources
Min S. Kim, Yewoon Choi, Natalia J. Fernandez, Alvaro D. Sponza, Abel E. Navarro
Pages: 25 - 34
Number of pages: 10
Current Topics in Biotechnology
Volume 8 

Copyright © 2014 Research Trends. All rights reserved

Eutrophication is the undesired growth of organisms in a confined water body. The most important compound responsible for this phenomenon is phosphate. Phosphates are mainly discharged into water resources from agriculture and fertilizer industries. This study evaluates the potential of raw spent peppermint tea (PM), spent green tea (GT), powdered purple corn cob (PC) and powdered yellow corn cob (YC) as adsorbents of phosphate from aqueous solutions. Batch experiments at room conditions were carried out as a function of pH, adsorbent dose, initial concentration of phosphate and presence of salts and heavy metals. Maximum adsorption capacity was observed at pH 10 with a minimum mass of 50 and 75 mg for YC and PC, respectively. Equilibrium data were fitted to the most important isotherm theories, obtaining a maximum adsorption capacity of 34 and 42 mg/g for YC and PC, respectively, under the Sips, Redlich-Peterson, Temkin and Langmuir mathematical theories. Salts and heavy metal experiments confirmed a strong electrostatic adsorption mechanism for PC and a mixed electrostatics/size affinity for YC. The use of raw PC and YC opens up new alternatives of inexpensive and environment-friendly adsorbents for phosphate.
Buy this Article


Buy this article
Buy this volume
Subscribe to this title
Shopping Cart

Quick Links
Search Products
Browse in Alphabetical Order : Journals
Browse by Subject Classification : Journals

Ordering Information Ordering Information
Downloadable forms Downloadable Forms