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In this paper we try to find a new and cheep method to remove metheylen blue from aqueous solutions, this study suggested water melon seeds shells as strong and cheep adsorbate , the experiments show that the best contact time (duration) is two hours which give a dye removal efficiency(R) = 66.83, and there is a direct correlation between the concentration of the adsorbate and the value of R , which Ranging from R=38.56 at concentration 0.5gm to R=82.27 at concentration 2.5 gm, the results also show that water melon seeds shells at concentration of 1.5 gm was able to remove M.B. from aqueous solution with concentration of 100mg/L With R=81.63, in this study also the effect of pH value on the adsorption process, the results show that the removal of M.B. increase with decrease of pH value, also the isotherm studies were conducted including Langmuir and freundlich models which were analyzed and the results fit with freundlich models more than Longmuir model.
[Jasim M. Salman, Noor A. Abdal-Hussein, Ali K. Al Muttairi (2015); Removing the methylene blue dye from aqueous solutions by low cost materials Int. J. of Adv. Res. 3 (4). 0] (ISSN 2320-5407). www.journalijar.com
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