Fixed Column Removal of Lead (II) Ions from Industrial Effluent using Pig Bone Char, Rice-Husks Ash and Water Hyacinth Composite Adsorbent
International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
www.ijsr.net | Open Access | Fully Refereed | Peer Reviewed International Journal

ISSN: 2319-7064



Research Paper | Chemistry | Kenya | Volume 7 Issue 2, February 2018

Fixed Column Removal of Lead (II) Ions from Industrial Effluent using Pig Bone Char, Rice-Husks Ash and Water Hyacinth Composite Adsorbent

Genson Murithi; Karanja wa Thiong'o; Wachira Muthengia

The adsorption potential of pig bone char (PBC), rice husk ash (RHA) and water hyacinth biomass (WHB) composite mixture to remove lead (II) ions from industrial waste water was investigated using a fixed bed column. The effects of bed height (2-10 cm), flow rate (5-10 mL/min) mL and feed concentration on the breakthrough characteristics of the column were determined. The highest bed capacity of 476.2 mg/g was obtained using 10-cm bed height, 12 feed concentration and 5 mL/min flow rate. The result indicated that adsorption capacity increased with increase in the inlet ion concentration and bed height and decreased with increase in flow rate. Increasing the flow rate resulted in a shorter time of bed saturation. Adsorption data was fitted to Adam-Bohart, Thomas and Yoon-Nelson models. The data was well fitted by the Thomas and Yoon-Nelson models with correlation coefficient R2 0.96 and for Adam-Bohart model, R2 0.94. It was noted that the rate constant for the Yoon-Nelson model increased with increase in flow rate, initial ion concentration and bed height. The breakthrough and exhaust times between the cycles did not differ significantly at 95 % confidence level. The adsorption of PBC/RHA/WHB had approximately 20 % more adsorption capacity than the commercially available materials.

Keywords: Adsorption; Pig Bone char; Fixed bed column; lead (II) ions, Rice husks ash, water hyacinth biomass, wastewater

Edition: Volume 7 Issue 2, February 2018

Pages: 1283 - 1288

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How to Cite this Article?

Genson Murithi; Karanja wa Thiong'o; Wachira Muthengia, "Fixed Column Removal of Lead (II) Ions from Industrial Effluent using Pig Bone Char, Rice-Husks Ash and Water Hyacinth Composite Adsorbent", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=ART2018168, Volume 7 Issue 2, February 2018, 1283 - 1288

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