Sorption comparison of trivalent chromium on various Ficus carica charcoal from tannery wastewater

M. A. Hashem, S. Mim, M. Z.R. Shaikh, S. Payel, M. S. Nur-A-Tomal

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther


In this study, equipped charcoal of Ficus carica without being impregnated impregnated with potassium hydroxide (KOH), zinc chloride (ZnCl2) and phosphoric acid (H3PO4) was used for sorption comparison of trivalent chromium, Cr (III) from tannery wastewater. The equipped charcoals are characterized by Fourier transforms infrared spectroscopy (FT-IR) before and after sorption of Cr(III). The quantitative elemental analysis of the charcoal is performed using PGT Energy dispersive X-ray spectrometry (EDX). The Cr(III) sorption efficacy of charcoal was examined investigating charcoal dose, contact time, and relative pH. Batch sorption test revealed that Ficus carica charcoal without impregnation had the maximum sorption capacity of Cr(III). At the same conditions, Cr(III) sorption efficiency on the Ficus carica charcoal without impregnation, impregnated with potassium hydroxide, zinc chloride, and phosphoric acid was 98.9%, 98.8%, 8.9% and 2.5%, respectively. The study could be helpful to design the sorption of trivalent chromium from the tannery wastewater in-house prior to discharge.

Original languageEnglish
Title of host publication35th IULTCS Congress 2019
Subtitle of host publication"Benign by Design" Leather - The Future Through Science and Technology
PublisherVerein fur Gerberei-Chemie und -Technik e. V. (VGCT)
ISBN (Electronic)9781510892347
Publication statusPublished - 2019
Externally publishedYes
EventInternational Union of Leather Technologists and Chemists Congress 2019 - Dresden, Germany
Duration: 25 Jun 201928 Jun 2019
Conference number: 35th


ConferenceInternational Union of Leather Technologists and Chemists Congress 2019
Abbreviated titleIULTCS Congress 2019


  • Cr (III) extraction
  • Environment
  • Impregnation
  • Sorption

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