Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/92846
Type: Artigo de periódico
Title: Biosorption Potential Of Zinc By Egeria Densa Macrophytes [potencial De Biossorção Do Zinco Pela Macrófita Egeria Densa]
Author: Modenes A.N.
Pietrobelli J.M.T.A.
Quinones F.R.E.
Suzaki P.Y.R.
Alflen V.L.
Klen M.R.S.F.
Abstract: In this paper, the removal potential on Zn ion by macrophyte Egeria densa has been studied. The influence of the metal solution pH, the plant drying and the metal solution temperature, and biosorbent grain size was previously studied in batch systems. Adsorption kinetic and equilibrium experiments of metals onto E. densa were performed under controlled temperature and permanent shaking. In adsorption kinetic tests for Zn (II) the equilibrium time was around 45 min. The biosorption kinetic data were well fitted by a pseudo-second order model. The equilibrium data at pH 5 were described a rather better by the Langmuir isotherm than the Freundlich one, with an adsorption rate and maximum metal content values of 0,829L g-1and 0,92 mequiv g-1, respectively, for Langmuir model. The macrophytes E. densa could be used as biosorbent material in industrial effluent treatment system.
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Rights: aberto
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Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-76149136435&partnerID=40&md5=75723df852c18c7b612cc799ead941e6
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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