Column Efficiency of Fluoride Removal Using Quaternized Palm Kernel Shell (QPKS). (12th May 2019)

• Record Type: Journal Article
• Authors: Abu Bakar, Ayu Haslija; Abdullah, Luqman Chuah; Mohd Zahri, Nur Amirah; Alkhatib, Ma'an
• Other Names: Guibal Eric Academic Editor.
• Is Part Of: International journal of chemical engineering. Volume 2019(2019)
• Publication Date: 2019-05-12
• Subjects: Chemical engineering -- Periodicals; Chemical engineering; Electronic journals; Periodicals; 660
• DOI: 10.1155/2019/5743590
• Languages: English
• ISSNs: 1687-806X

Abstract

Abstract : In this research, the adsorption potential of quaternized palm kernel shell (QPKS) to remove F − from aqueous solution was investigated using fixed-bed adsorption column. Raw palm kernel shell waste was reacted with 3-chloro-2-hydroxypropyl trimethylammonium chloride (CHMAC) in order to modify the surface charge. The effects of inlet F − concentrations (2–12 mg/l) and QPKS bed height (2–10 cm) with optimum pH (pH = 3) on the breakthrough characteristics of the adsorption system were determined. In the fixed-bed column, breakthrough time increases with increasing bed height due to increasing amount of active site on adsorbents to adsorb the fluoride ion. Decreasing trend of breakthrough values was obtained with increasing initial fluoride concentration due to greater driving force for the transfer process to overcome the mass transfer resistance in the column. The adsorptions were fitted to three well-established fixed-bed adsorption models, namely, Thomas, Yoon–Nelson, and Adams–Bohart models. The results fitted well to the Thomas and Yoon–Nelson models with correlation coefficient, R 2 ≥ 0.96.