Separation of Ni (II) from Industrial Wastewater by Kombucha Scoby as a Colony Consisted from Bacteria and Yeast: Kinetic and Equilibrium Studies

Authors

  • Seyyed Mojtaba Mousavi Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran.
  • Seyyed Alireza Hashemi Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran.
  • Aziz Babapoor Department of Chemical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran.
  • Amir Savardashtaki Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran.
  • Hossein Esmaeili Department of Chemical Engineering, Islamic Azad University of Bushehr, Bushehr, Iran.
  • Yaghoub Rahnema Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran.
  • Fatemeh Mojoudi Department of Environment, Faculty of Natural Resources, College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran.
  • Sonia Bahrani Department of Medical Nanotechnology, School of Adanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
  • Sara Jahandideh Department of Chemical and Polymer Engineering, Faculty of Engineering, Yazd University, Yazd, P.O. Box: 891581-8411, Iran.
  • Marziyeh Asadi Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran

DOI:

https://doi.org/10.17344/acsi.2019.4984

Keywords:

Separation, Kombucha, Bacteria, Adsorption kinetics, Ni (II)

Abstract

Kombucha Scoby is a colony consisted from bacteria, yeast and cellulosic pellicle which has unique outcomes and performances in variety of fields. Along with antimicrobial and anti-toxicity of kombucha, it can be adapted to develop reactors for removal of heavy metals from waste water. The main objective of this study is to investigate the removal of Ni (II) ions from wastewater by Kombucha as a microorganism by considering the pH, time, temperature, the electrolyte solution, the buffer volume and type. The adsorption experiments indicated that the maximum adsorption capacity of Ni (II) occurred at the pH of 7, contact time of 15 min and temperature of 25 °C. In the optimal conditions, 94.5% of Ni (II) ions was removed from the solution, which clarify the significant effectiveness of Kombucha Scoby in matter of heavy metal removal. Besides, equilibrium experiments fitted well with the Langmuir isotherm model and the maximum Kombucha Scoby adsorption capacity at 25 °C was determined to be a very high adsorption capacity of 454.54 mg/g. Additionall, adsorption kinetic behaviour of Ni (II) on to the Kombucha Scoby can be described using the pseudo-second order model.

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Published

18.12.2019

Issue

Vol. 66 No. 4 (2019)

Section

Applied chemistry

License

Except where otherwise noted, articles in this journal are published under the Creative Commons Attribution 4.0 International License