4.7 Article

Ecuadorian yeast species as microbial particles for Cr(VI) biosorption

Journal

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume 26, Issue 27, Pages 28162-28172

Publisher

SPRINGER HEIDELBERG
DOI: 10.1007/s11356-019-06035-8

Keywords

Biosorption; Cationic surfactant; Cr(VI); Microbial particles; Yeasts; Specific surface area

Funding

  1. Pontificia Universidad Catolica del Ecuador

Ask authors/readers for more resources

Pollution caused by heavy metals is a prime concern due to its impact on human health, animals, and ecosystems. Cr(VI), generated in a range of different industries as a liquid effluent, is one of the most frequent contaminants. In the work presented herein, the adsorption efficiency of three species of native yeasts from Ecuador (Kazachstania yasuniensis, Kodamaea transpacifica, and Saturnispora quitensis) for Cr(VI) removal from simulated wastewater was assessed, taking Saccharomyces cerevisiae as a reference. After disruption of the flocs of yeast with a cationic surfactant, adsorption capacity, kinetics, and biosorption isotherms were studied. K. transpacifica isolate was found to feature the highest efficiency among the four yeasts tested, as a result of its advantageous combination of surface charge, individual cell size (4.04 mu m), and surface area (1588.27 m(2)/L). The performance of S. quitensis was only slightly lower. The remarkable biosorption capacities of these two isolates (476.19 and 416.67 mg of Cr(VI)/g of yeast, respectively) evidence the potential of non-conventional yeast species as sorption microbial particles for polluted water remediation.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available