Biosorption of inorganic and organic arsenic from aqueous solution by Acidithiobacillus ferrooxidans BY-3

Journal of Hazardous Materials
Lei YanHong-Yu Li

Abstract

The traditional techniques for removing low concentration arsenic are unsuitable. The biosorption characteristics of arsenite (iAs(III)) and monomethyl arsonate (MMA(V)) from aqueous solution by Acidithiobacillus ferrooxidans BY-3 (At. f BY-3) were investigated as a function of pH, contact time, initial arsenic concentration, biomass dosage and temperature in this study. Results indicated that Langmuir isotherm model fitted better than Freundlich model to the equilibrium data. Analysis of kinetic data showed that the biosorption processes of both iAs(III) and MMA(V) involved pseudo-second-order kinetics. The thermodynamic parameters such as DeltaG(o), DeltaH(o) and DeltaS(o) of the biosorption process showed that the adsorption of iAs(III) and MMA(V) onto At. f BY-3 was feasible, spontaneous and endothermic under the examined conditions. The competitive biosorption of iAs(III) and MMA(V) in binary mixture system was evaluated, and the results indicated that At. f BY-3 favored MMA(V) biosorption. Fourier-transform infrared spectroscopy (FT-IR) showed -OH and -NH groups were involved in the biosorption process.

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Citations

Oct 25, 2012·Environmental Science and Pollution Research International·A K GiriP C Mishra
Jul 23, 2013·Environmental Science and Pollution Research International·Yanwen QinYanmin Zhao
Feb 18, 2014·Environmental Technology·Kumar Suranjit PrasadRam Prasad
Nov 16, 2013·Bioinorganic Chemistry and Applications·Ismael Acosta RodríguezMaría de Guadalupe Moctezuma-Zárate
Aug 12, 2014·BioMed Research International·Hanan E M El-Sayed, Mayyada M H El-Sayed
Aug 1, 2014·Journal of Environmental Sciences (China)·Yiqun XuHuixin Xiong
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Aug 25, 2011·Journal of Hazardous Materials·Ye TianYong Huang
Dec 24, 2015·Genomics Data·Lei YanPeng Chen
Dec 5, 2014·Environmental Monitoring and Assessment·Mahendra Aryal, Maria Liakopoulou-Kyriakides
Aug 14, 2019·Environmental Science and Pollution Research International·Rauf ForoutanSoleyman Sahebi
Feb 8, 2020·Journal of Environmental Health Science & Engineering·Arezoo DadrasniaRosazlin Abdullah
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Apr 27, 2018·Extremophiles : Life Under Extreme Conditions·Shuang ZhangWeidong Wang
Apr 14, 2020·Materials Science & Engineering. C, Materials for Biological Applications·Qingzhu LiQingwei Wang
Aug 1, 2020·Journal of Environmental Management·Khaled Zoroufchi BenisJafar Soltan
Oct 1, 2012·Materials Science & Engineering. C, Materials for Biological Applications·Lei YanHongyu Li

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