Adsorption studies of hazardous malachite green onto treated ginger waste
Adsorption of malachite green (MG) from aqueous solution onto treated ginger waste (TGW) was investigated by batch and column methods. The effect of various factors such as initial dye concentration, contact time, pH and temperature were studied. The maximum adsorption of MG was observed at pH 9. La...
| Publicado en: | Journal of Environmental Management Vol. 91; no. 4; pp. 1032 - 1039 |
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| Autores principales: | , |
| Formato: | Artículo |
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Academic Press Inc.
Mar2010
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=47837908&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 47837908 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 03014797 EMJ jtl: Journal of Environmental Management issn: 03014797 maglogo: N pubinfo: dt: Mar2010 vid: 91 iid: 4 pid: 735 pub: Academic Press Inc. artinfo: ui: 47837908 10.1016/j.jenvman.2009.12.016 ppf: 1032 ppct: 7 formats: tig: atl: Adsorption studies of hazardous malachite green onto treated ginger waste aug: au: Ahmad, Rais Kumar, Rajeev affil: Environmental Research Laboratory, Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh 202002, UP, India su: Biomass Adsorption (Chemistry) Ginger Malachite green Batch processing Chemical engineering Dye industry & the environment pH effect Thermodynamics research sug: subj: Other Vegetable (except Potato) and Melon Farming Other Food Crops Grown Under Cover Chemical (except agricultural) and allied product merchant wholesalers Synthetic Dye and Pigment Manufacturing Biomass Adsorption (Chemistry) Ginger Malachite green Batch processing Chemical engineering Dye industry & the environment pH effect Thermodynamics research keyword: Adsorption Breakthrough capacity Film diffusion Thermodynamics Adsorption Breakthrough capacity Film diffusion Thermodynamics ab: Adsorption of malachite green (MG) from aqueous solution onto treated ginger waste (TGW) was investigated by batch and column methods. The effect of various factors such as initial dye concentration, contact time, pH and temperature were studied. The maximum adsorption of MG was observed at pH 9. Langmuir and Freundlich isotherms were employed to describe the MG adsorption equilibrium. The monolayer adsorption capacities were found to be 84.03, 163.9 and 188.6 mg/g at 30, 40 and 50 °C, respectively. The values of thermodynamic parameters like ΔG°, ΔH° and ΔS° indicated that adsorption was spontaneous and endothermic in nature. The pseudo second order kinetic model fitted well in correlation to the experimental results. Reichenberg's equation was employed to determine the mechanism of adsorption. The results indicated that film diffusion was a major mode of adsorption. The breakthrough capacities were also investigated. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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