Please use this identifier to cite or link to this item: https://doi.org/10.1016/S1001-0742(09)60216-3
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dc.titleIsolation, identification, Pb(II) biosorption isotherms and kinetics of a lead adsorbing Penicillium sp. MRF-1 from South Korean mine soil
dc.contributor.authorVelmurugan, N.
dc.contributor.authorHwang, G.
dc.contributor.authorSathishkumar, M.
dc.contributor.authorChoi, T.K.
dc.contributor.authorLee, K.-J.
dc.contributor.authorOh, B.-T.
dc.contributor.authorLee, Y.-S.
dc.date.accessioned2014-06-17T08:20:04Z
dc.date.available2014-06-17T08:20:04Z
dc.date.issued2010-07
dc.identifier.citationVelmurugan, N., Hwang, G., Sathishkumar, M., Choi, T.K., Lee, K.-J., Oh, B.-T., Lee, Y.-S. (2010-07). Isolation, identification, Pb(II) biosorption isotherms and kinetics of a lead adsorbing Penicillium sp. MRF-1 from South Korean mine soil. Journal of Environmental Sciences 22 (7) : 1049-1056. ScholarBank@NUS Repository. https://doi.org/10.1016/S1001-0742(09)60216-3
dc.identifier.issn10010742
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/65735
dc.description.abstractA heavy metal contaminated soil sample collected from a mine in Chonnam Province of South Korea was found to be a source of heavy metal adsorbing biosorbents. Chemical analyses showed high contents of lead (Pb) at 357 mg/kg and cyanide (CN) at 14.6 mg/kg in the soil. The experimental results showed that Penicillium sp. MRF-1 was the best lead resistant fungus among the four individual metal tolerant fungal species isolated from the soil. Molecular characterization of Penicillium sp. MRF-1 was determined using ITS regions sequences. Effects of pH, temperature and contact time on adsorption of Pb(II) by Penicillium sp. MRF-1 were studied. Favorable conditions for maximum biosportion were found at pH 4 with 3 hr contact time. Biosorption of Pb(II) gradually increased with increasing temperature. Efficient performance of the biosorbent was described using Langmuir and Freundlich isotherms. Adsorption kinetics was studied using pseudo first-order and pseudo second-order models. Biosorbent Penicillium sp. MRF-1 showed the maximum desorption in alkali conditions. Consistent adsorption/desorption potential of the biosorbent in repetitive cycles validated the efficacy of it in large scale. SEM studies given notes on surface modification of fungal biomass under metal stress and FT-IR results showed the presence of amino groups in the surface structure of the biosorbent. In conclusion, the new biosorbent Penicillium sp. MRF-1 may potentially be used as an inexpensive, easily cultivatable material for the removal of lead from aqueous solution. © 2010 The Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/S1001-0742(09)60216-3
dc.sourceScopus
dc.subjectBiosorption
dc.subjectHeavy metal resistant fungus
dc.subjectIsotherms
dc.subjectKinetics
dc.subjectPenicillium sp.
dc.typeArticle
dc.contributor.departmentCIVIL ENGINEERING
dc.description.doi10.1016/S1001-0742(09)60216-3
dc.description.sourcetitleJournal of Environmental Sciences
dc.description.volume22
dc.description.issue7
dc.description.page1049-1056
dc.identifier.isiut000280163800013
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