شماره ركورد كنفرانس :
4734
عنوان مقاله :
Adsorption of copper (II) and cobalt (II) from model sewage onto modified bentonite
پديدآورندگان :
Nasseri Sh.A. naseri1449@gmail.com Technical and VocayionalUniversity , Alemi A.A. University of Tabriz , Yagubov A.I. Nagiyev of Azerbaijan National Academy of Sciences .Baku, (Azerbaijan) , Nuriev A.N. Nagiyev of Azerbaijan National Academy of Sciences .Baku, (Azerbaijan)
كليدواژه :
Adsorption , Modified bentonite , Copper , Cobalt , Bentonite.
عنوان كنفرانس :
اولين همايش ملي علوم و فناوري هاي شيمي كاربردي: شيمي زمين و شيمي محيط زيست
چكيده فارسي :
Natural and Na-form of heat-treated bentonite was applied for the adsorption of copper (II) and cobalt (II) ions from model sewage at 20-65°C temperature range. At various temperatures equilibrium adsorption capacity of both natural and Na-form heat-treated bentonite samples were determined. Adsorption efficiency of the adsorbents was increased by increasing the temperature. It can be hypothesized by the reduction of swelling and dehydration. Also, the adsorption efficiency for the Cu2+ was greater than Co2+ in all studied solution concentration and temperatures. Modification of bentonite by cation exchange method led into higher gross capacity values, equilibrium coefficient of distribution and metal ion adsorption selectivity.
