Zinc Chloride Recovery for Synthesis of Porous Adsorbent from Lipid Condensate for Dye Removal
Nurul Aishah ABDUL RAHIM, Muhammad Abbas AHMAD ZAINI, Sariah ABANG, Norlisa MILI
Abstract. Zinc chloride (ZnCl₂) is one of the most frequently used chemical activators for the synthesis of porous adsorbent. However, ZnCl₂ activator is constrained by the corrosive nature of zinc cations (Zn2+) and accumulation of chemical waste, posing a significant environmental concern. To address these issues, the potential of recycling the ZnCl₂ recovered from washing filtrate is explored as a resource utilization strategy. Lipid condensate, a by-product from the sterilization process in palm oil mill is proposed as a precursor for activation using the recovered ZnCl₂ washing filtrate. Preliminary insights suggest that the absorption performance of the absorbent produced with recovered ZnCl₂ may exhibit a comparable result to that prepared using fresh ZnCl₂. Nevertheless, further reuse of the activator beyond the first cycle of recovered ZnCl₂ may results in a significant decline of adsorption performance. This commentary highlights a practical approach for ZnCl₂ recovery aimed at reducing environmental burden while maximizing the utilization efficiency of ZnCl₂.
Keywords
Zinc Chloride Recovery, Porous Adsorbent, Lipid Condensate, Methylene Blue Adsorption, Chemical Activator, Wastewater Treatment
Published online 1/15/2026, 8 pages
Copyright © 2026 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Nurul Aishah ABDUL RAHIM, Muhammad Abbas AHMAD ZAINI, Sariah ABANG, Norlisa MILI, Zinc Chloride Recovery for Synthesis of Porous Adsorbent from Lipid Condensate for Dye Removal, Materials Research Proceedings, Vol. 59, pp 98-105, 2026
DOI: https://doi.org/10.21741/9781644903957-13
The article was published as article 13 of the book Separation Technology
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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