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Durian Peel As Biosorbent For Removal Of Cadmium Ions From Aqueous Solution, Wanna Saikaew, Pairat Kaewsarn
Durian Peel As Biosorbent For Removal Of Cadmium Ions From Aqueous Solution, Wanna Saikaew, Pairat Kaewsarn
Applied Environmental Research
The ability of durian peel to remove Cd(II) ions from aqueous solution by biosorption was investigated. The sorption capacities at different solution pH, agitation speed, temperatures, initial cadmium ions concentrations and contact time were evaluated on a batch scale basis. At pH 5 and agitation speed 150 rpm, the cadmium ions removal reached at a maximum value. Increases in cadmium capacity with increasing temperature indicated endothermic nature of the biosorption process. The equilibrium was better described by the Langmuir isotherm model, with a maximum biosorption capacity of 18.55 mg g-1. The biosorption was relatively quick about 15 min to reach …