Characterisation of activated charcoal, sawdust charcoal and rice husk charcoal as adsorbents in water treatment
Keywords:adsorbent, charcoal, pyrolysis, water treatment
This study is an investigation into the characterization of commercial activated charcoal, sawdust charcoal and rice husk charcoal as adsorbents for water treatment. The ground rice husk and waste sawdust collected, were sieved to obtain a nominal size of 1mm, washed and oven-dried for 12hours. The two materials were pyrolysized in a furnace for 30minutes, and the chars produced were later air-dried. The three charcoals (sawdust charcoal, rice husk charcoal, and the activated charcoal purchased from the market) were all subjected to X-ray Fluorescence (XRF) analysis, Scanning Electron Microscope (SEM) analysis and Energy Dispersive X-ray (EDX) analysis in order to characterize the filter materials. The SEM analysis showed that the three materials developed more pores, which is a property of an adsorbent. Likewise, the XRF and EDX analyses confirm that all the three adsorbents possess larger proportion of Silica, Carbon and Oxygen.
Collins Dictionary, Adsorbents, Retrieved from:https://www.collinsdictionary.com/dictionary/english/adsorbent 2019.
Separation Processes, Adsorbents, Retrieved from: http://www.separationprocesses.com/Adsorption/AD_Chp01a.htm 2019.
S. A. Azeem, Development of New Sorbents for Removal of Contaminants from Water, Retrieved from: http://www.suswatec.de/download/presentations/Abdelazeem.pdf 2013.
F. J. De Silva, Exploring the Multifunctional Nature of Activated Carbon Filtration, A Publication of Water Quality Products, Retrieved from: htttps://www.waterqp.com 2000.
Minnesota Pollution Control Agency, Granular Activated Carbon Filters, A Publication of Minnesota Pollution Control Agency, Retrieved from: https://www.pca.state.mn.us/sites/default/files/c-s1-05.pdf 2009.
G. J. McDougall, The Physical Nature and Manufacture of Activated Carbon, Journal of the South African Institute of Mining and Metallurgy, 91 (4), 1991, pp. 109-120.
J. Kearns, Charcoal Filtration Basics, A Publication of Aqueous Solutions Drinking Water Systems, Retrieved from: http://www.aqsolutions.org/resources/Charcoal_Filtration.pdf 2007.
Z. Al-Qodah, R. Shawabkah, Production and Characterization of Granular Activated Carbon from Activated Sludge, Brazilian Journal of Chemical Engineering, 26 (1), 2009, pp. 127 – 136.
B. Kakoi, J. W. Kaluli, G. Thumbi, A. Gachanja, Performance of Activated Carbon prepared from Sawdust as an Adsorbent for Endosulfan Pesticide, Journal of Sustainable Research in Engineering, 2 (1), 2015, pp. 1-10.
M. K. Lam, R. Zakaria, Production of Activated Carbon from Sawdust using Fluidized Bed Reactor, International Conference on Environment, Retrieved from: http://www.eprints.usm.my/13227/1/production_of_activated.pdf 2008.
J. Duvauchelle, Natural Materials Used for Water Filtration, Retrieved from: https://www.livestrong.com/article/165592-natural-materials-used-for-water-filtration/ 2019.