Applicability of solid process residues as sorbents for the treatment of industrial wastewaters

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorKhalid, Muhammad Kamranen_US
dc.contributor.authorAgarwal, Viveken_US
dc.contributor.authorWilson, Benjamin P.en_US
dc.contributor.authorTakaluoma, Estheren_US
dc.contributor.authorLundström, Marien_US
dc.contributor.departmentDepartment of Chemical and Metallurgical Engineeringen
dc.contributor.groupauthorHydrometallurgy and Corrosionen
dc.contributor.organizationKajaanin Ammattikorkeakouluen_US
dc.date.accessioned2020-11-30T08:16:27Z
dc.date.available2020-11-30T08:16:27Z
dc.date.embargoinfo:eu-repo/date/embargoEnd/2021-10-19en_US
dc.date.issued2020-02-10en_US
dc.description.abstractIn the present work, four different geopolymers: PG (alkaline activated metakaolinite), PGA (aluminum oxide + PG), AG (alkaline activated analcime) and AAG (aluminum oxide + AG) and one commercially available MgO based sorbent: PM (PalPower M10) were compared on the basis of their copper adsorption capacity from aqueous solutions. It was observed that PM (PalPower 10) outperformed all the other adsorbents studied for copper removal efficiency and was consequently selected for further study. The effect of the main adsorption parameters such as pH (1 - 5), dosage (0.25 - 5 g/L) and contact time (15 - 1440 min) were systematically investigated with synthetic solutions of differing copper concentrations (100 - 500 mg/L). The results indicated that PM adsorbent removed all the copper ions at pH 4 with a dosage of 1 g/L and contact time of 24 h from solutions that contained only copper ions, whereas the presence of other ions - including Fe - significantly decreased the copper removal efficiency. Due to presence of other elements like As, Al, Zn in industrial wastewater, a higher dosage of PM adsorbent (~45 - 90 g/L) was required in order to remove all the metal ions after 24 h. The regeneration results suggested that the attached copper ions can be successfully stripped using a 2 M ammonia solution allowing the PM adsorbent to be regenerated. These findings demonstrate the potential of geopolymers to treat industrial wastewaters, especially for the removal of metal ions like copper.en
dc.description.versionPeer revieweden
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationKhalid, M K, Agarwal, V, Wilson, B P, Takaluoma, E & Lundström, M 2020, ' Applicability of solid process residues as sorbents for the treatment of industrial wastewaters ', Journal of Cleaner Production, vol. 246, 118951 . https://doi.org/10.1016/j.jclepro.2019.118951en
dc.identifier.doi10.1016/j.jclepro.2019.118951en_US
dc.identifier.issn0959-6526
dc.identifier.issn1879-1786
dc.identifier.otherPURE UUID: 86bfe3b1-c1a1-4faf-b5ef-683a024379f0en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/86bfe3b1-c1a1-4faf-b5ef-683a024379f0en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85074411834&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/39538861/MINE_D_19_00614R1.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/61744
dc.identifier.urnURN:NBN:fi:aalto-2020113020589
dc.language.isoenen
dc.publisherELSEVIER SCI LTD
dc.relation.ispartofseriesJournal of Cleaner Productionen
dc.relation.ispartofseriesVolume 246en
dc.rightsopenAccessen
dc.subject.keywordPollution reductionen_US
dc.subject.keywordMetal removalen_US
dc.subject.keywordRegenerable biopolymersen_US
dc.subject.keywordAdsorptionen_US
dc.subject.keywordSustainabilityen_US
dc.titleApplicability of solid process residues as sorbents for the treatment of industrial wastewatersen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi

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