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- W2965194335 endingPage "103317" @default.
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- W2965194335 abstract "Among the contaminants that are frequently associated with industrial wastewaters, potentially toxic metals are of great health concern because they are non-biodegradable and can be transformed by biochemical processes to more poisonous metal-organic complexes. Thus, safe and adequate disposal of wastewater containing these metals into the environment remains a front-burner challenge. This study investigated metal ions removal from wastewaters using adsorbents generated from the Spent Seedcake of Calophyllum inophyllum (SSCI) as an alternative low-cost adsorbent. Batch adsorption process was employed to demonstrate the adsorption capacity for the multi-component removal of Pb(II), Cd(II) and Zn(II) at optimized experimental conditions. Carbonization and microwaving of the biosorbent produced an optimal performance for the uptake of the metals at solution pH of 9, temperature of 30 °C, dosage, 10 g/L and 60 min equilibrium time. The maximum adsorption capacities of the biosorbent were 52.63, 51.28 and 17.99 mg/g for Pb2+, Cd2+and Zn2+ respectively. The adsorption kinetics of the metals unto the biosorbent was adequately described by a pseudo-second-order kinetic model with positive enthalpy (ΔH) indicating the endothermic nature of the adsorption process while the negative values of the Gibbs free energy (ΔG) confirmed the spontaneity of the adsorption process for all the metals studied.The effectiveness of the biosorbent was tested with real wastewater samples and a removal of the metals between 55–71% was achieved." @default.
- W2965194335 created "2019-08-13" @default.
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- W2965194335 date "2019-10-01" @default.
- W2965194335 modified "2023-10-01" @default.
- W2965194335 title "Adsorption performance and mechanism of a low-cost biosorbent from spent seedcake of Calophyllum inophyllum in simultaneous cleanup of potentially toxic metals from industrial wastewater" @default.
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- W2965194335 doi "https://doi.org/10.1016/j.jece.2019.103317" @default.
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