title: Adsorption of transition metals in aqueous solutions by fluted pumpkin (Telfairia occidentalis Hook f) waste.
abstract: The adsorption of some divalent transition metal (Hg, Rh, Pt, and Pd) ions in aqueous solution onto fluted pumpkin waste biomass has been investigated. The data were discussed in terms of ionic radii, surface area, and the hard-soft acid-base (HSAB) concept. The monolayer sorption capacities as obtained by the Langmuir adsorption isotherm model were determined to be ca. 9.89 mg/g, 9.81 mg/g, 10.59 mg/g, and 6.84 mg/g for for Hg(II), Rh(II), Pt(II), and Pd(II), respectively. The results are relevant for the optimal design of a wastewater treatment plant and for prediction of model parameters of sorbate-sorbent interactions.
authors.affiliation: Department of Pure and Industrial Chemistry, University of Port Harcourt, Uniport P.O. Box 402, Choba, Port Harcourt, Nigeria. horsfalljnr@yahoo.com
authors.forename: Michael
authors.initials: M
authors.lastname: Horsfall
authors.forename: Ayebaemi Ibuteme
authors.initials: AI
authors.lastname: Spiff
mesh_terms: D000327:Adsorption; D019662:Cucurbitaceae / Q000737:chemistry*; D008670:Metals / Q000737:chemistry* / Q000302:isolation & purification*; D012996:Solutions / Q000737:chemistry; D014866:Waste Products; D014874:Water Pollutants, Chemical / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: D008670:Metals; D012996:Solutions; D014866:Waste Products; D014874:Water Pollutants, Chemical