Adsorption Characteristics and pH-dependence of Metsulfuron-Methyl onto Activated Carbons

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Show simple item record Kim, Seoung-Hyun en_US Ngo, Huu Hao en_US 2009-12-21T02:28:47Z 2009-12-21T02:28:47Z 2007 en_US
dc.identifier 2007002668 en_US
dc.identifier.citation Kim Seoung-Hyun and Ngo Huu Hao 2007, 'Adsorption Characteristics and pH-dependence of Metsulfuron-Methyl onto Activated Carbons', Taylor & Francis Inc, vol. 42, no. 8, pp. 1731-1745. en_US
dc.identifier.issn 0149-6395 en_US
dc.identifier.other C1 en_US
dc.description.abstract The adsorption characteristics of metsulfuron-methyl (MM) onto powdered activated carbon (PAC) and granular activated carbon (GAC) were studied at varying solution pHs (4 9) and temperatures (20 408C). The dependence of pH was observed in aqueous solution with MM. The film mass transfer and intraparticle diffusion coefficients were estimated from concentration decay curves obtained in the batch adsorber. The maximum adsorption capacity decreased with increasing pH and temperature. Among the PAC used, the coconut based PAC had the best adsorption capacity. The adsorption isotherms could be plotted using the Freundlich and Toth models with a reasonable degree of accuracy. The overall adsorption isotherm such as the modified-Toth model should be applied. The performances of the fixed-bed GAC system was also simulated by a model developed. The objective of the present study was to investigate the adsorption and pH dependence behavior of MM onto PAC and GAC in order to diminish the environmental risk of MM pollution. en_US
dc.publisher Taylor & Francis Inc en_US
dc.relation.isbasedon en_US
dc.title Adsorption Characteristics and pH-dependence of Metsulfuron-Methyl onto Activated Carbons en_US
dc.parent Separation Science and Technology en_US
dc.journal.volume 42 en_US
dc.journal.number en_US
dc.journal.number 8 en_US
dc.publocation United States en_US
dc.identifier.startpage 1731 en_US
dc.identifier.endpage 1745 en_US FEIT.School of Elec, Mech and Mechatronic Systems en_US
dc.conference Verified OK en_US
dc.for 030100 en_US
dc.personcode 0000043078 en_US
dc.personcode 890265 en_US
dc.percentage 100 en_US Analytical Chemistry en_US
dc.classification.type FOR-08 en_US
dc.description.keywords Metsulfuron-methyl; powdered activated carbon; granular activated carbon; adsorption; herbicide; synthetic organic compounds; wastewater treatment en_US
dc.staffid 890265 en_US

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