Removal and recovery of zinc from solution and electroplating effluent using Azolla filiculoides

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dc.contributor.authorZhao, M
dc.contributor.authorvan Hille, R P
dc.contributor.authorDuncan, J R
dc.date.accessioned2016-08-17T09:14:40Z
dc.date.available2016-08-17T09:14:40Z
dc.date.issued1999
dc.date.updated2016-08-16T11:52:42Z
dc.description.abstractThe removal of zinc ions from aqueous solutions and electroplating rinse effluent by Azolla filiculoides on batch and column studies was investigated. The maximum zinc uptake by Azolla in batch systems at an optimum pH of 6.0 was found to be 45.2 mg/g. The dried Azolla filiculoides showed good mechanical stability and flow-permeability in repeated column operations. The zinc uptake in column operation at pH 6.2 and 60% breakthrough was between 25.8–30.4 mg/g with varying flow rates (from 32 to 160 ml/h.g). Complete desorption of bound zinc was accomplished with 120 ml of either 0.2 N H2S04 or HCl. The data from regeneration efficiencies for six cycles, evidenced that the reusability of Azolla in the treatment of Zn2+-laden wastewater is viable. An effluent-free, closed loops of zinc treatment system, with Azolla biomass as the sorbent, is proposed.en_ZA
dc.identifierhttp://dx.doi.org/10.1016/S0043-1354(98)00338-8
dc.identifier.apacitationZhao, M., van Hille, R. P., & Duncan, J. R. (1999). Removal and recovery of zinc from solution and electroplating effluent using Azolla filiculoides. <i> Water Research</i>, http://hdl.handle.net/11427/21284en_ZA
dc.identifier.chicagocitationZhao, M, R P van Hille, and J R Duncan "Removal and recovery of zinc from solution and electroplating effluent using Azolla filiculoides." <i> Water Research</i> (1999) http://hdl.handle.net/11427/21284en_ZA
dc.identifier.citationZhao, M., Duncan, J. R., & Van Hille, R. P. (1999). Removal and recovery of zinc from solution and electroplating effluent using Azolla filiculoides. Water Research, 33(6), 1516-1522.en_ZA
dc.identifier.issn0043-1354en_ZA
dc.identifier.ris TY - Journal Article AU - Zhao, M AU - van Hille, R P AU - Duncan, J R AB - The removal of zinc ions from aqueous solutions and electroplating rinse effluent by Azolla filiculoides on batch and column studies was investigated. The maximum zinc uptake by Azolla in batch systems at an optimum pH of 6.0 was found to be 45.2 mg/g. The dried Azolla filiculoides showed good mechanical stability and flow-permeability in repeated column operations. The zinc uptake in column operation at pH 6.2 and 60% breakthrough was between 25.8–30.4 mg/g with varying flow rates (from 32 to 160 ml/h.g). Complete desorption of bound zinc was accomplished with 120 ml of either 0.2 N H2S04 or HCl. The data from regeneration efficiencies for six cycles, evidenced that the reusability of Azolla in the treatment of Zn2+-laden wastewater is viable. An effluent-free, closed loops of zinc treatment system, with Azolla biomass as the sorbent, is proposed. DA - 1999 DB - OpenUCT DP - University of Cape Town J1 -  Water Research LK - https://open.uct.ac.za PB - University of Cape Town PY - 1999 SM - 0043-1354 T1 - Removal and recovery of zinc from solution and electroplating effluent using Azolla filiculoides TI - Removal and recovery of zinc from solution and electroplating effluent using Azolla filiculoides UR - http://hdl.handle.net/11427/21284 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/21284
dc.identifier.vancouvercitationZhao M, van Hille RP, Duncan JR. Removal and recovery of zinc from solution and electroplating effluent using Azolla filiculoides.  Water Research. 1999; http://hdl.handle.net/11427/21284.en_ZA
dc.languageengen_ZA
dc.publisherIWA Publishingen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.source Water Researchen_ZA
dc.source.urihttp://wr.iwaponline.com/
dc.subject.otherAzolla filiculoides
dc.subject.otherZn2+
dc.subject.otherheavy metals
dc.subject.othercolumn sorption
dc.subject.otherdesorption
dc.titleRemoval and recovery of zinc from solution and electroplating effluent using Azolla filiculoidesen_ZA
dc.typeJournal Articleen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceArticleen_ZA
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