Fixed-Bed Biosorptive Removal of Metanil Yellow from Simulated Wastewater by Hen Egg Membrane

Beniah O. Isiuku* and Confidence C. Ndudi

 Department of Chemistry, Imo State University, PMB 2000, Owerri, Nigeria

Abstract

The ability of hen egg membrane which is an agricultural waste used to remove metanil yellow, a toxic dye from simulated wastewater, in a fixed-bed column was investigated. The effects of varying influent dye concentration (Co), adsorbent mass (m) and flow rate (Q), at pH 3 and temperature 29 °C on biosorption capacity (qe) of the membrane were investigated. Experimental data were modelled with Langmuir, Freundlich and Temkin isotherm as well as Thomas, Yoon-Nelson and Clark kinetic models. Results show that biosorption capacity, increased with increase in dye concentration, increase in flow rate and decrease in adsorbent mass. Saturation of the biosorbent could not be reached in 8 h, Co 100 mg/g, m 2g and Q 15 mL/min were optimum. Analysis of experimental data with Langmuir, Freundlich and Temkin, as well as Thomas, Yoon-Nelson and Clark models, showed them to be good fits based on correlation coefficient values, R2, which were generally above 0.9. This study shows hen egg membrane to be a potential biosorbent for treating anionic - dye polluted wastewaters.

Keywords

Biosorption capacity, Egg membrane, Fixed-bed column, Kinetic models, Metanil yellow.

  
 
  • Asian J. Mat. Chem. /
  •  2017 /
  •  2(3-4) /
  •  pp 120-127
  • DOI:10.14233/ajmc.2017.AJMC-P50