화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.27, 126-132, July, 2015
DOI10.1016/j.jiec.2014.12.026  Export Citation
Marula seed husk (Sclerocarya birrea) biomass as a low cost biosorbent for removal of Pb(II) and Cu(II) from aqueous solution
Mambo Moyo†, Upenyu Guyo, Grace Mawenyiyo, Ngceboyakwethu P. Zinyama, and Benias C. Nyamunda1
  • Department of Chemical Technology, Midlands State University, Private Bag 9055, Senga, Gweru, Zimbabwe, Korea
  • 1Department of Chemical Engineering, Manicaland College of Applied Sciences, Private Bag 9055, Gweru, Zimbabwe
E-mail:
A biosorbent prepared from marula seed husk (Sclerocarya birrea) was used to study the sorption of Pb(II) and Cu(II) from industrial wastewater under batch conditions. The equilibrium sorption capacities of the seed husk were 20 mg g-1 for Pb(II) and 10.20 mg g-1 for Cu(II). The biosorption data conforms best with Langmuir model for both Pb(II) and Cu(II) with correlation factors of 0.999 and 0.998, respectively. Kinetic data were properly fitted with the pseudo-second order kinetic model. The thermodynamic parameters (ΔG0, ΔS0 and ΔH0) showed that the biosorption was feasible, spontaneous and endothermic.
Keywords:Biosorption;Marula seed husk;Metal ions;Kinetics;Thermodynamics;Wastewater
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