Marula seed husk (Sclerocarya birrea) biomass as a low cost biosorbent for removal of Pb(II) and Cu(II) from aqueous solution

Autor:	Grace Mawenyiyo, Mambo Moyo, Upenyu Guyo, Ngceboyakwethu P. Zinyama, Benias C. Nyamunda
Rok vydání:	2015
Předmět:	Aqueous solution biology Chemistry General Chemical Engineering Biosorption Langmuir adsorption model Sorption biology.organism_classification Husk Endothermic process Industrial wastewater treatment symbols.namesake symbols Sclerocarya birrea Nuclear chemistry
Zdroj:	Journal of Industrial and Engineering Chemistry. 27:126-132
ISSN:	1226-086X
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6c1e17eb001df6de7495b3cc9dd3ff23 https://doi.org/10.1016/j.jiec.2014.12.026 Zobrazit plný text záznamu Full Text from ScienceDirect