B.O.  Isiuku, M.  Horsfall, A.I.  Spiff, 
    Colour Removal from a Simulated Methyl Red Wastewater by Adsorption on Carbon in a Fixed Bed,
    Research Journal of Applied Sciences,
    Volume 9,Issue 4,
    2014,
    Pages 201-207,
    ISSN 1815-932x,
    rjasci.2014.201.207,
    (https://makhillpublications.co/view-article.php?doi=rjasci.2014.201.207)
    Abstract: The aim of this research was to evaluate H<SUB>3</SUB>PO<SUB>4</SUB>-activated 
  carbon from cassava peels waste in removing methyl red from aqueous solution 
  (simulated wastewater) by adsorption in a fixed-bed column. Effects of influent 
  concentration, adsorbent bed height and solution flow rate were studied. Experimental 
  results were applied to Thomas and Yoon-Nelson Models. The adsorption capacity, 
  rate constant, correlation coefficient associated with each model were calculated 
  and mentioned. The maximum experimental adsorption capacity of 133.63 mg g<SUP>-1</SUP> 
  was obtained with influent concentration of 200 mg L<SUP>-1</SUP>, bed height 
  20 cm and flow rate 13.3 mL min<SUP>-1</SUP>. Adsorption capacity, q<SUB>o</SUB>, 
  increased with increase in influent concentration, increase in bed height and 
  decrease in flow rate. Maximum adsorption capacity related to the Thomas and 
  Yoon-Nelson Models were 24.341 and 260.042 mg g<SUP>-1</SUP>, respectively at 
  influent concentration 200 mg L<SUP>-1</SUP>, bed height 20 cm and flow rate 
  of 13.3 mL min<SUP>-1</SUP>. Correlation coefficients show that the results 
  fitted well into the Thomas and Yoon-Nelson Models.
    Keywords: Fixed-bed column;cassava peels;activated carbon;methyl red;Thomas and Yoon-Nelson Model