Dobaradaran, Sina; Nabipour, Iraj; Hossein Mahvi, Amir; Keshtkar, Mozhgan; Elmi, Farzaneh; Amanollahzade, Fatemeh; Khorsand, Maryam
July 2014
Fluoride;Jul-Sep2014, Vol. 47 Issue 3, p253
Academic Journal
The aim of this study was to determine the efficiency of shrimp shell waste for the removal of fluoride (F) from aqueous solutions by adsorption, the most promising treatment technology for this purpose. In a series of batch experiments at room temperature, the experimental parameters studied were: initial adsorbent dose (3.2-64 g/L), initial F concentration (2-8 mg/L) while the mass ratio of biosorbant dose (g/L) to initial F concentration (mg/L) was fixed at 5 ratios in the range 400-8000, contact time (5-120 min), pH (3-11), and the presence of competing anions (bicarbonate, nitrate, carbonate, sulfate, and chloride at 200-400 mg/L). We concluded that shrimp shell waste can be a cheap, effective, and environmentally friendly adsorbent of F from aqueous solutions.


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