Optimization of Ni bioaccumulation by synechcoccus--颗粒学报PARTICUOLOGY

Li, H., Du, Z., Liang, J., Bai, H., & Feng, Y. (2006). Optimization of Ni bioaccumulation by synechcoccus. China Particuology, 4(2), 77–79. https://doi.org/10.1016/S1672-2515(07)60239-5

Optimization of Ni bioaccumulation by synechcoccus

Haoran Li ^a *, Zhuwei Du ^a, Jianglong Liang ^a, Huiqing Bai ^b, Yali Feng ^b

a National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100080, P. R. China
b School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China

10.1016/S1672-2515(07)60239-5

Volume 4, Issue 2, April 2006, Pages 77-79

Received 15 February 2006, Accepted 27 March 2006, Available online 27 November 2007.

E-mail: hrli@home.ipe.ac.cn

Highlights

Abstract

Influencing factors on bioaccumulation of Ni by Synechcoccus were studied in this paper. The equilibration time of Ni bioaccumulation was about 80 min in aqueous solution. Bioaccumulation quantity reached maximum when mass ratio of Ni to dry weight concentration of Synechcoccus was 16-18%. Bioaccumulation quantity increased with increasing pH. The optimum pH was 9-10 and higher pH led to precipitation of Ni(OH)₂. Bioaccumulation quantity was also influenced by temperature and light intensity reaching their optima at 35°C and 3 000 lx respectively. Bioaccumulation of nonliving algae was larger than that of living algae.

Graphical abstract

Keywords

Synechcoccus; Ni; bioaccumulation; polluted mine drainage

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