Increasing recovery opportunities of metal(loid)s from municipal solid waste via landfill leachate recirculation

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dc.contributor.authorLee, Hyeyeon
dc.contributor.authorCoulon, Frederic
dc.contributor.authorBeriro, D. J.
dc.contributor.authorWagland, Stuart T.
dc.date.accessioned2023-02-01T12:40:46Z
dc.date.available2023-02-01T12:40:46Z
dc.date.issued2023-01-17
dc.description.abstractThe recovery of 12 critical raw materials (CRM) from municipal solid wastes (MSW) via leachate recirculation was evaluated using a 4 L semi-pilot scale column percolation. The results showed that the recovery of the metal(loid)s was mainly influenced by order of importance: pH > organic content > type of metal(loid)s > age of the waste > redox potential. Among the CRM, Cd and Ni were the most mobile elements, while As and Cr were the least mobile. A comparison of leachate from the leachate recirculated columns before and after the initiation of recirculation indicates an increase in the concentrations of certain CRM and metalloids. The first recirculation cycle supported achieving 100 % recovery. CRM and metalloids in leachate can be recovered; however, the concentrations of CRM and metalloids are usually below 1 mg/L. In this regard, leachate recirculation may enhance the increasing concentration of CRM in landfill leachate. For example, after first recirculation cycle, Ni concentration increased from 0.05 mg/L to 0.11 mg/L. The results obtained from this study can develop further methodologies for the potential recovery of CRM and help foster further research into overcoming limitations for recovering CRM in landfill leachate.en_UK
dc.identifier.citationLee H, Coulon F, Beriro DJ, Wagland ST. (2023) Increasing recovery opportunities of metal(loid)s from municipal solid waste via landfill leachate recirculation, Waste Management, Volume 158, March 2023, pp. 116-124en_UK
dc.identifier.eissn1879-2456
dc.identifier.issn0956-053X
dc.identifier.urihttps://doi.org/10.1016/j.wasman.2023.01.011
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/19077
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectLandfillen_UK
dc.subjectMetal recoveryen_UK
dc.subjectRecirculationen_UK
dc.subjectCircular economyen_UK
dc.subjectLeachateen_UK
dc.titleIncreasing recovery opportunities of metal(loid)s from municipal solid waste via landfill leachate recirculationen_UK
dc.typeArticleen_UK

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