Live and lyophilized fungi-algae pellets as novel biosorbents for gold recovery : critical parameters, isotherm, kinetics and regeneration studies

dc.contributor.authorShen, Na
dc.contributor.authorChirwa, Evans M.N.
dc.date.accessioned2020-12-02T11:24:48Z
dc.date.issued2020-06
dc.description.abstractThis study aimed to evaluate the potential of live and lyophilized fungi-algae pellets as biosorbents for gold recovery and their regeneration ability. The optimum conditions determined by Taguchi method were 1 g/L co-pellets, 9–10 mm size at 250 rpm of agitation speed and pH 3.5 and 2.0 for live and lyophilized co-pellets, respectively. The porous characteristics of fungi-algae pellets played an important role on gold adsorption. Lyophilized co-pellets achieved adsorption capacity of 112.36 mg/g which were comparable with some synthesized granular adsorbents and performed better than the live co-pellets due to more cell-wall polysaccharides involved in gold interaction. 97.77% of gold was selectively absorbed by the lyophilized co-pellets from multi-metal wastewater in column reactor. This study may provide new insights into the application of fungi-algae pelletized reactor in bioremediation of contaminated wastewater by precious metals and their recovery and the in-situ regeneration of biosorbents.en_ZA
dc.description.departmentChemical Engineeringen_ZA
dc.description.embargo2021-06-01
dc.description.librarianhj2020en_ZA
dc.description.sponsorshipThe Sedibeng Water, South Africa and the Water Utilization and Environmental Engineering Division at the University of Pretoria.en_ZA
dc.description.urihttp://www.elsevier.com/locate/biortechen_ZA
dc.identifier.citationShen, N. & Chirwa, E.M.N. 2020, 'Live and lyophilized fungi-algae pellets as novel biosorbents for gold recovery : critical parameters, isotherm, kinetics and regeneration studies', Bioresource Technology, vol. 306, art. 123041, pp. 1-8.en_ZA
dc.identifier.issn0960-8524 (print)
dc.identifier.issn1873-2976 (online)
dc.identifier.other10.1016/j.biortech.2020.123041
dc.identifier.urihttp://hdl.handle.net/2263/77246
dc.language.isoenen_ZA
dc.publisherElsevieren_ZA
dc.rights© 2020 Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Bioresource Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Bioresource Technology, vol. 306, art. 123041, pp. 1-8, 2020. doi : 10.1016/j.biortech.2020.123041.en_ZA
dc.subjectGolden_ZA
dc.subjectFungi-algae pelletsen_ZA
dc.subjectLyophilized pelletsen_ZA
dc.subjectTaguchi methoden_ZA
dc.subjectPelletized reactoren_ZA
dc.titleLive and lyophilized fungi-algae pellets as novel biosorbents for gold recovery : critical parameters, isotherm, kinetics and regeneration studiesen_ZA
dc.typePostprint Articleen_ZA

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