Biosorption of copper (II) from aqueous solution using non-living Mesorhizobium amorphae strain CCNWGS0123.

Microbes and Environments
Osama Abdalla MohamadGehong Wei

Abstract

The mining industry generates huge amounts of wastewater, containing toxic heavy metals. Treatment to remove heavy metals is necessary and recent work has been focused on finding more environmentally friendly materials for removing heavy metals from wastewater. Biosorption can be an effective process for heavy metal removal from aqueous solutions. Our objectives were to investigate the removal of copper (II) from aqueous solutions using dead cells of Mesorhizobium amorphae CCNWGS0123 under differing levels of pH, agitation speed, temperature, initial copper concentration, biosorbent dose and contact time using flame atomic absorption spectroscopy for metal estimation. The maximum copper removal rate was achieved at pH 5.0, agitation speed 150×g, temperature 28°C and initial Cu (II) concentration of 100 mg L(-1). Maximum biosorption capacity was at 0.5 g L⁻¹ and equilibrium was attained within 30 min. Langmuir and Freundlich isotherms showed correlation coefficients of 0.958 and 0.934, respectively. Fourier transform-infrared spectroscopy (FT-IR) analysis indicated that many functional groups, such as O-H, N-H, C-H, C=O, -NH, -CN, C-N, C-O, amide -I, -II, -III and unsaturated alkenes, alkyls and aromatic groups on the cell surfa...Continue Reading

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Citations

Jul 20, 2014·Carbohydrate Polymers·Tereza Cristina Luque CastellaneEliana Gertrudes de Macedo Lemos
Dec 24, 2013·Environmental Science. Processes & Impacts·Nisha GaurArchana Tiwari
Sep 9, 2019·Environmental Science and Pollution Research International·Xin LiuZhao-Qiong Chen
May 17, 2017·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Di GuQihe Chen

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Datasets Mentioned

BETA
JF907685
JF907686

Methods Mentioned

BETA
X-ray
PCR
electrophoresis

Software Mentioned

Excel
BLAST

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