Study on the Tolerance and Adsorption of Five Heavy Metal Ions by a Radiation-Resistant Acinetobacter sp.

Abstract:

To investigate the tolerance and adsorption of five heavy metal ions by radiation-resistant microbes, a radiation-resistant strain NO.9 was identified according to 16S rDNA gene sequence analysis and Biolog system, and the tolerance and adsorption to five heavy metal ions was analysed. The results showed that it had a maximum tolerance 2200mg/L to Pb2+, and it had adsorption ability to Pb2+、Cu2+、Hg2+、Zn2+ and Co2+under the situation as followes: 0.1g the amount of cells, at pH 6.0, 20°C and adsorbed for 40 min. it reached a maximum adsorption 98.9% to Pb2+, and the amount of adsorption was 39.56mg/g. It indicated the strain NO.9 had a strong tolerance and absorption to Pb2+. This assay laid a theoretical basis and technological foundation for further study of the radiation-resistant microorganisms in the heavy metal pollution.

• Periodical: Advanced Materials Research (Volumes 641-642)
• Pages: 183-188
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.641-642.183
• Online since: January 2013
• Authors: Jing Zhu, Yu Qing Xie, Su Qin Song, Zhi Dong Zhang, Wei Wang, Mei Ying Gu, Qi Yong Tang
• Keywords: Acinetobacter sp., Adsorption, Heavy Metal Ion, Radiation-Resistant, Tolerance

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