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Removal of Cd(II) ion from wastewater by adsorption onto treated old newspaper: kinetic modeling and isotherm studies | ||
International Journal of Industrial Chemistry | ||
دوره 4، شماره 1، اسفند 2013، صفحه 94-100 | ||
نوع مقاله: research article | ||
شناسه دیجیتال (DOI): https://doi.org/10.1186/2228-5547-4-13 | ||
نویسندگان | ||
Mona E Ossman* 1، 2؛ Moustapha S Mansour3 | ||
1City for Scientific Research and Technology Application (CSAT), Alexandria, 21544, Egypt | ||
2Petrochemical Engineering Department, Pharos University (PUA), Alexandria, 21544, Egypt | ||
3Chemical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria, 21544, Egypt | ||
چکیده | ||
Background This paper studied the ability of using treated old newspaper (TNP) as synthetic adsorbent for the removal of Cd(II) from aqueous solutions by batch operation. Various operating parameters such as pH, initial metal ion concentration, adsorbent dosage, and equilibrium contact time have been studied. Results The results indicated that the adsorption of Cd(II) increased with the increasing pH, and the optimum solution pH for the adsorption of Cd(II) was found to be 6.4. Adsorption was rapid and occurred within 15 min for Cd(II) concentration range from 5 to 30 mg/L. Conclusions The kinetic process of Cd(II) adsorption onto TNP was found to fit the pseudo-second-order model. The equilibrium adsorption data for Cd(II) were better fitted to the Langmuir adsorption isotherm model. | ||
کلیدواژهها | ||
Kinetics؛ Equilibrium؛ Cadmium؛ Adsorption؛ Wastewater treatment؛ Newspaper pulp | ||
آمار تعداد مشاهده مقاله: 13 |