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Vol. 26 No. 16 (2014): Vol 26 Issue 16

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Biosorption of Lead(II) by Endophytes EPL01 of High Arsenic Resistance Isolated from Hyperaccumulator Plant Pteris cretica

https://doi.org/10.14233/ajchem.2014.16555
Kai Yu
Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, P.R. China; Institute of Wastes and Soil Environment, Shanghai Academy of Environmental Sciences, Shanghai 200233, P.R. China
Yiting Luo
Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, P.R. China
Ruizhi Dong
Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, P.R. China
Fang Deng
Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, P.R. China
Xinman Tu
Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, P.R. China

Corresponding Author(s) : Fang Deng

dengfang40030@126.com

Asian Journal of Chemistry, Vol. 26 No. 16 (2014): Vol 26 Issue 16

Abstract

A novel endophyte L01 (EPL01) with high adsorption capacity for lead(II) was isolated from arsenic hyperaccumulator Pteris cretica and identified to be a Bacillus sp.. The adsorption isotherm of lead(II) on EPL01 fitted well with the Langmuir model and the adsorption kinetics could be well described by the pseudo-second-order rate model. The results revealed that the maximum adsorption capacity was 93.63 mg/g. The solution pH, reaction time, biosorbent dosage and initial lead(II) concentration highly influenced the lead bioremoval rate. Moreover, EPL01 was used five times without any deterioration in adsorption capacity. The results pointed out that isolate endophyte L01 could potentially reduce aqueous lead concentration.

Keywords

Endophytes Arsenic hyperaccumulator Biosorption Lead(II)
Yu, K., Luo, Y., Dong, R., Deng, F., & Tu, X. (2014). Biosorption of Lead(II) by Endophytes EPL01 of High Arsenic Resistance Isolated from Hyperaccumulator Plant Pteris cretica. Asian Journal of Chemistry, 26(16), 5137–5141. https://doi.org/10.14233/ajchem.2014.16555
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