Adsorption of reactive dyes using shale oil ash in fixed beds

Abstract

Research Article| May 01 2003 Adsorption of reactive dyes using shale oil ash in fixed beds Z. Al-Qodah; Z. Al-Qodah 1Department of Chemical Engineering, Amman College for Engineering Technology, Al-Balqa Applied University, Amman, Marka 11134, P.O. Box 340558, Jordan Fax: 96264694294 Search for other works by this author on: This Site PubMed Google Scholar W. Lafi W. Lafi 1Department of Chemical Engineering, Amman College for Engineering Technology, Al-Balqa Applied University, Amman, Marka 11134, P.O. Box 340558, Jordan Fax: 96264694294 Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2003) 52 (3): 189–198. https://doi.org/10.2166/aqua.2003.0019 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Twitter LinkedIn Tools Icon Tools Cite Icon Cite Permissions Search Site Search nav search search input Search input auto suggest search filter All ContentAll JournalsThis Journal Search Advanced Search Citation Z. Al-Qodah, W. Lafi; Adsorption of reactive dyes using shale oil ash in fixed beds. Journal of Water Supply: Research and Technology-Aqua 1 May 2003; 52 (3): 189–198. doi: https://doi.org/10.2166/aqua.2003.0019 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex A series of batch and dynamic column experiments were carried out for adsorbing reactive dyes present in textile mill effluents under different conditions. Jordanian shale oil ash, produced by burning oil shale at 800°C, was used to adsorb these dyes in a fixed bed adsorber. The bed depth service time (BDST) model was applied to illustrate the bed performance. The experimental and predicted results are compared for various operating conditions. The effects of feed flow rate, inlet concentration, adsorbent article diameter and temperature on the bed service time and performance are considered. It was found that the rate at which the breakthrough point is achieved increases with increasing temperature and inlet concentration, and decreases as the particle size increases. The results indicate that a bed of 0.20 m in height and 0.025 m in diameter is adequate for full development of the adsorption zones in all experiments. The spent adsorbent was easily regenerated by burning at 600°C. The results obtained indicate that shale oil ash has potential as an adsorbent and could be easily used in continuous processes. In addition, the BDST model gave reasonable results in predicting the bed performance using the relationships proposed by previous researchers or proposed in this study. adsorption of acid reactive dyes, breakthrough curves, dynamic adsorption, fixed-bed adsorbers, industrial wastewater treatment This content is only available as a PDF. © IWA Publishing 2003 You do not currently have access to this content.