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NEBA > HA. At optimum conditions, viz. amine concentration of 5 mole/I, LR (1:20) for 15 min. at 90°C, 3 aminated jute fibers(AJF) were prepared, viz. CRAJF, HAJF and NEBAJF with % N of 5.92, 5.27 and 5.39% respectively. AJFs were used in the removal of Cu2+ ions from aqueous solution at different pRs (2-8), CU2+ ion concentration (50-500 mg/l), AJF concentration (1-10 g/I), and time (15-180 min.). The extent of Cu2+ ion removal depends on AJF type and follows the order: NEBAJF > CHAJF > HAJF. Optimal removal conditions at room temperature (30°C) were pR 5, Cu2+ ion concentration 200 mg/l, adsorbent concentration 2g/1 and time of 180 min. The removal of Cu2+ ions by the three different AJFs follows Langmuir and Freundlich isotherms.]]>
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