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Lead and vanadium removal from a real industrial wastewater by gravitational settling/sedimentation and sorption onto Pinus sylvestris sawdust
Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för naturvetenskap, NV.
Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för naturvetenskap, NV.ORCID-id: 0000-0002-7920-8001
Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för naturvetenskap, NV.ORCID-id: 0000-0002-1903-760X
2009 (engelsk)Inngår i: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 100, nr 1, s. 235-243Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Batch sorption with untreated Pinus sylvestris sawdust after settling/sedimentation phase to removevanadium and lead from a real industrial wastewater was investigated using different adsorbent doses,initial pH, and contact time. The development of pH along the sorption test and a parallel investigationof metals release from sawdust in distilled water were carried out. In order to evaluate kinetic parametersand equilibrium isotherms, Lagergren first-order, pseudo-second-order, intra-particle diffusion andFreundlich models were explored. When the initial pH was reduced from 7.4 to 4.0, the sorptionefficiency increased from 32% to 99% for Pb and from 43% to 95% for V. Whereas, V removal was positivelycorrelated with the adsorbent dose, Pb removal was not. The sorption process was best described bypseudo-second-order kinetics. According to Freundlich parameters (Kf and n) sawdust presentedunfavourable intensity for sorption of V.Batch sorption with untreated Pinus sylvestris sawdust after settling/sedimentation phase to removevanadium and lead from a real industrial wastewater was investigated using different adsorbent doses,initial pH, and contact time. The development of pH along the sorption test and a parallel investigationof metals release from sawdust in distilled water were carried out. In order to evaluate kinetic parametersand equilibrium isotherms, Lagergren first-order, pseudo-second-order, intra-particle diffusion andFreundlich models were explored. When the initial pH was reduced from 7.4 to 4.0, the sorptionefficiency increased from 32% to 99% for Pb and from 43% to 95% for V. Whereas, V removal was positivelycorrelated with the adsorbent dose, Pb removal was not. The sorption process was best described bypseudo-second-order kinetics. According to Freundlich parameters (Kf and n) sawdust presentedunfavourable intensity for sorption of V.

sted, utgiver, år, opplag, sider
2009. Vol. 100, nr 1, s. 235-243
Emneord [en]
Sorption kinetics Sorption isotherms Heavy metals Wood industry Low-cost adsorbents
HSV kategori
Forskningsprogram
Miljövetenskap, Miljöteknik
Identifikatorer
URN: urn:nbn:se:lnu:diva-7135DOI: 10.1016/j.biortech.2008.05.055OAI: oai:DiVA.org:lnu-7135DiVA, id: diva2:343162
Tilgjengelig fra: 2010-08-12 Laget: 2010-08-12 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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