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Dye removal from textile wastewater using bioadsorbent.

Author(s)
S. M. H. Gardazi Department of Environmental Science, COMSATS Institute of Information Technology, Abbottabad (CIIT), Abbottabad, Pakistan
Tayyab Ashfaq Department of Civil Engineering, CIIT-Abbottabad, Pakistan
Jehanzeb A. Shah Department of Environmental Science, COMSATS Institute of Information Technology, Abbottabad (CIIT), Abbottabad, Pakistan
Maria Siddique Department of Environmental Science, COMSATS Institute of Information Technology, Abbottabad (CIIT), Abbottabad, Pakistan
S. Tatheer A. Naqvi Department of Environmental Science, COMSATS Institute of Information Technology, Abbottabad (CIIT), Abbottabad, Pakistan
M. Bilal Department of Environmental Science, COMSATS Institute of Information Technology, Abbottabad (CIIT), Abbottabad, Pakistan
Iftikhar A. Raja Department of Environmental Science, COMSATS Institute of Information Technology, Abbottabad (CIIT), Abbottabad, Pakistan
Abstract
Textile industries throughout the world produce huge quantities of dyes and pigments annually. Effluents from textile industries are dye wastewater, and disposal of these wastes to freshwater bodies causes damage to the environment. Among the treatment technologies, adsorption is an attractive and viable option, provided that the sorbent is inexpensive and readily available for use. In this study, a typical basic dye, methylene blue, in wastewater was treated using Melia azedarach sawdust. The effects of contact time, adsorbent amount and particle size were investigated on the removal efficiency of adsorbent for methylene blue. Complete removal of the dye were attained at higher adsorbent dose of 3 g/L with 50 mg/L initial dye concentration. The maximum adsorption was at 240 minutes, whereas more than 90% removal with 105 μm particle size of 1 g/L adsorbent for same initial dye concentration. The experimental data best fits with 2 Langmuir adsorption isotherm (R = 0.991).
Publication Details
Page(s) 63-66
DOI DOI not available
Published Journal: Science Vision, Volume: 20, Issue: 1, Year: 2014

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