Journal of
Environmental Chemistry and Ecotoxicology

  • Abbreviation: J. Environ. Chem. Ecotoxicol.
  • Language: English
  • ISSN: 2141-226X
  • DOI: 10.5897/JECE
  • Start Year: 2009
  • Published Articles: 197

Full Length Research Paper

Bioremediation of Ni(II) and Cu(II) from wastewater by the nonliving biomass of Brevundimonas vesicularis

Neha Singh* and Ranu Gadi
School of Applied Sciences, Indira Gandhi Institute of Technology (IGIT), GGSIP University, Delhi, India.
Email: [email protected]

  •  Accepted: 28 March 2012
  •  Published: 22 April 2012

Abstract

 

The nonliving biomass of Brevundimonas vesicularis was used for the biosorption of nickel and copper from their single and binary solutions after its pretreatment with 0.1 N NaOH. The optimum conditions, such as pH, initial metal ion concentration, contact time and biomass dose were determined experimentally. From the linear plot of Langmuir isotherm model, maximum absorption capacities (qmax) of the metal ion in mg/g of the biomass and ‘b’ (Langmuir constant) values were determined. The values of qmax and ‘b’ for Ni(II) and Cu(II) are 91.6 mg/g, 0.013 and 129.4 mg/g, 0.009, respectively. The removal of the metals was also studied in binary metal systems. The developed method was applied for the removal of the metals from the wastewater samples.

 

Key words: Pretreatment, pH, time, binary, stability, complexation.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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