Desorption of Lead Ions from Used Sodium Alginate-Hydroxypropyl Cellulose Adsorbent Beads

Rodel D. Guerrero

Department of Chemical Engineering and Technology, College of Engineering and Technology, MSU-Iligan Institute of Technology, Iligan City, Philippines, 9200

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Abstract :

Efficient removal of adsorbed lead ions from the sodium alginate-hydroxypropyl cellulose beads was necessary to guarantee their long-term use for repeated adsorption-desorption cycles. In this study, the desorption characteristics of previously adsorbed lead ions on sodium alginate-hydroxypropyl (SA-HPC) cellulose adsorbent beads were tested using various eluents such as sulfuric acid and ethylenediaminetetraacetic acid (EDTA). SA-HPC adsorption beads were produced using 3:1 ratio of sodium alginate to hydroxypropyl cellulose via ionotropic gelation. Generally, using H2SO4 as eluent maintained an exceptional adsorption efficiency throughout in each cycle, but showed a weak desorption efficiency performance. The desorption efficiency using 0.1M EDTA, on the other hand, was found to be the most effective but resulted to the beads disintegration after the first cycle.

  • sodium alginate ,
  • hydroxypropyl cellulose ,
  • adsorption ,
  • desorption ,
  • eluent ,
  • lead

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Rodel D. Guerrero, Imee Kassandra E. Cacho, Dan Michael A. Asequia, Joshua Emmanuel L. Hugo. (2022). Desorption of Lead Ions from Used Sodium Alginate-Hydroxypropyl Cellulose Adsorbent Beads. In: Dr Sunita Singh, Dr Mohammed Aurifullah, Dr. Peiman Kianmehr, Dr. Monica Dragomirescu, Smart Environmental Science Technology and Management. Lecture Notes on Environment Conservation and Enrichment, vol 1. Technoarete Publishers.

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