Optimisation of cell surface and structural components for improving adsorption capacity of Pseudomonas putida 5-x to Cu2+. (17th October 2008)

• Record Type: Journal Article
• Authors: Zheng, G.H.; Wang, L.; Zhou, Q.; Li, F.T.
• Is Part Of: International journal of environment and pollution. Volume 34:Number 1/4(2008)
• Page Start: 285
• Page End: 296
• Publication Date: 2008-10-17
• Subjects: adsorption capacity -- cell culture -- cell growth age -- cell pretreatment -- copper sorption -- Pseudomonas putida -- biosorption -- heavy metals -- metal removal -- wastewater treatment -- water pollution; Environmental policy -- Periodicals; Environmental engineering -- Periodicals; Environmental sciences -- Periodicals; Pollution -- Periodicals; 363.73
• Languages: English
• ISSNs: 0957-4352

Abstract

A heavy metal binding bacterium Pseudomonas putida 5-x was used as biosorbent for heavy metal removal from wastewater. In order to compete with physical adsorbent, the optimisation of the cell preparation technique for further improving its biosorption capacity was conducted. Results showed that the compositions of medium for cell culturing, cell growth age and cell pre-treating technique would affect the cell surface and structural components, hence the adsorption capacity of the cell to heavy metal ions. Using optimal cell culture conditions and pretreatment technique, the Cu2+ adsorption capacity of the cell was obviously increased from 51.2 mg g−1 to 89.6 mg g−1.