Increasing of the biomass of phosphate accumulating bacteria due to addition of a clinoptilolite-rich tuff from Bigadiç, Turkey

Hrenović J., Tibljaš D., Orhan Y.

Studies in Surface Science and Catalysis, vol.158 B, pp.2089-2096, 2005 (SCI-Expanded) identifier

  • Publication Type: Article / Abstract
  • Volume: 158 B
  • Publication Date: 2005
  • Journal Name: Studies in Surface Science and Catalysis
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2089-2096
  • Ondokuz Mayıs University Affiliated: Yes


The influence of a clinoptilolite-rich tuff from Bigadiç area, Turkey on the concentration of biomass of P-accumulating bacteria and the phosphate (P) uptake was investigated. Experiments were carried out in reactors containing the experimental wastewater with different initial concentrations of P inoculated with the pure culture of Acinetobacter calcoaceticus. The addition of a clinoptilolite-rich tuff in the aerobic phase of experiment, when compared with control reactors, resulted in the significantly higher biomass of free cells and the higher amount of P removed from wastewater. The P-uptake rates per single cell were lower in reactors with clinoptilolite-rich tuff addition, which is explained by the higher concentration of cells that are actively multiplying. The main contribution of the clinoptilolite-rich tuff to the P removal from wastewater was the increase of biomass, and in a lesser extent the adsorption of P on the zeolitized tuff. © 2005 Elsevier B.V. All rights reserved.