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Removal of fluoride from aqueous solution and groundwater by wheat straw, sawdust and activated bagasse carbon of sugarcane
Citation
Yadav, AK and Abbassi, R and Gupta, A and Dadashzadeh, M, Removal of fluoride from aqueous solution and groundwater by wheat straw, sawdust and activated bagasse carbon of sugarcane, Ecological Engineering, 52 pp. 211-218. ISSN 0925-8574 (2013) [Refereed Article]
Copyright Statement
Copyright 2012 Elsevier B.V.
DOI: doi:10.1016/j.ecoleng.2012.12.069
Abstract
The aim of this research work is to design and develop a novel cost effective strategy for fluoride removal, applicable to rural areas of developing countries. Most of the adsorbents based technologies for fluoride removal works at acidic pH which is not feasible condition for application to rural areas. This study investigates the feasibility of three low-cost agricultural biomass based adsorbents namely: activated bagasse carbon (ABC), sawdust raw (SDR), and wheat straw raw (WSR) for water defluoridation, at neutral PH range. Performance of these adsorbents was compared with commercially available activated carbon (CAC). The CAC, ABC, SDR, and WSR removed 57.6, 56.4, 49.8 and 40.2% respectively from an aqueous solution of 5mgL-1 fluoride at pH 6.0, with the contact period of 60min and a dose of 4gL-1. All adsorption experimental data followed the Freundlich isotherm. The adsorption kinetic was also studied in terms of pseudo-first-order, pseudo-second-order and intraparticle diffusion models. Mechanism of fluoride removal was found to be complex. In addition, both surface adsorption and intra-particle diffusion contribute to the rate determining step. An updated list of biomass based adsorbents reported in scientific literatures was prepared and compared with adsorbents used in this study. © 2012 Elsevier B.V.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | Activated bagasse carbon; Agricultural waste; Defluoridation; Sawdust raw; Wheat straw raw; Acidic pH; Adsorption kinetics; Agricultural biomass; Cost effective strategies; Defluoridation; Experimental datum; Fluoride removal; Freundlich isotherm |
| Research Division: | Engineering |
| Research Group: | Chemical Engineering |
| Research Field: | Water Treatment Processes |
| Objective Division: | Commercial Services and Tourism |
| Objective Group: | Water and Waste Services |
| Objective Field: | Water Recycling Services (incl. Sewage and Greywater) |
| UTAS Author: | Abbassi, R (Dr Rouzbeh Abbassi) |
| ID Code: | 94994 |
| Year Published: | 2013 |
| Web of Science® Times Cited: | 80 |
| Deposited By: | NC Maritime Engineering and Hydrodynamics |
| Deposited On: | 2014-09-22 |
| Last Modified: | 2017-11-03 |
| Downloads: | 0 |
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