Kinetic studies of adsorption of lead(ll) from aqueous solution by wine-processing waste sludge

A waste sludge produced from a wine-processing wastewater treatment process was used as an adsorbent to removal of heavy metal-lead(II) from aqueous solution. Results of kinetic experiments demonstrated that the adsorption was effective and rapid. Four different kinds of adsorption kinetic models (i...

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Veröffentlicht in:Water environment research : a research publication of the Water Environment Federation. - 1998. - 78(2006), 3 vom: 28. März, Seite 263-8
1. Verfasser: Li, Yuan-Shen (VerfasserIn)
Weitere Verfasser: Liu, Cheng-Chung, Chiou, Chyow-San
Format: Aufsatz
Sprache:English
Veröffentlicht: 2006
Zugriff auf das übergeordnete Werk:Water environment research : a research publication of the Water Environment Federation
Schlagworte:Comparative Study Journal Article Cations, Divalent Industrial Waste Sewage Lead 2P299V784P
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520 |a A waste sludge produced from a wine-processing wastewater treatment process was used as an adsorbent to removal of heavy metal-lead(II) from aqueous solution. Results of kinetic experiments demonstrated that the adsorption was effective and rapid. Four different kinds of adsorption kinetic models (i.e., pseudo-first-order, pseudo-second-order, and two intra-particular mass diffusion models) were used to investigate the adsorption mechanisms. A normalized standard deviation was used to find the best adsorption kinetic model for the removal of lead(ll) by the sludge. The comparison shows that the kinetic adsorption data can be well-described by the pseudo-second-order adsorption model and that sorption might be a rate-limiting control. The adsorption-rate constant and adsorption capacity of pseudo-second-order adsorption equation were calculated. The parameters (initial lead(II) concentration, sludge-particle size, and sludge dosages), which affect the adsorption capacity of sludge, were discussed by using the pseudo-second-order adsorption equation 
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650 4 |a Journal Article 
650 7 |a Cations, Divalent  |2 NLM 
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700 1 |a Liu, Cheng-Chung  |e verfasserin  |4 aut 
700 1 |a Chiou, Chyow-San  |e verfasserin  |4 aut 
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