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dc.contributor.authorZhang, Liguo
dc.contributor.authorChen, Ying
dc.contributor.authorMa, Caixia
dc.contributor.authorLiu, Lei
dc.contributor.authorPan, Jingshi
dc.contributor.authorLi, Biqing
dc.contributor.authorWu, Xuewei
dc.contributor.authorWang, Qilin
dc.description.abstractIn order to enhance heavy metals removal, two enhanced chemical leaching techniques were examined comparatively using NaClO and NaNO2 with the addition of FeCl3. The phosphorus release, dewaterability and pathogen removal of treated sludge were also examined after chemical leaching. The results showed that the heavy metals solubilization, improvement of dewaterability and pathogen removal were simultaneously achieved. Compared with NaClO treatment system, the better solubilization rates of Zn and Ni were observed in the NaNO2 treatment system. The improvement of Cu, Zn and Ni removal can be attributed to the disruption of the organically bound metal fraction based on metal distribution and EEM analysis. The TP loss caused by chemical leaching in this study was in the range of 47 %–54%. The treated sludge of the two systems could both meet Class A biosolids standards (US EPA) for land application. These results provided an alternative chemical leaching method for simultaneous improvement of sludge properties.en_US
dc.relation.ispartofjournalJournal of Cleaner Productionen_US
dc.subject.fieldofresearchEnvironmental Engineeringen_US
dc.subject.fieldofresearchManufacturing Engineeringen_US
dc.subject.fieldofresearchInterdisciplinary Engineeringen_US
dc.subject.keywordsScience & Technologyen_US
dc.subject.keywordsLife Sciences & Biomedicineen_US
dc.subject.keywordsGreen & Sustainable Science & Technologyen_US
dc.titleImproving heavy metals removal, dewaterability and pathogen removal of waste activated sludge using enhanced chemical leachingen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Articlesen_US
dcterms.bibliographicCitationZhang, L; Chen, Y; Ma, C; Liu, L; Pan, J; Li, B; Wu, X; Wang, Q, Improving heavy metals removal, dewaterability and pathogen removal of waste activated sludge using enhanced chemical leaching, Journal of Cleaner Production, 2020, 271, pp. 122512en_US
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gro.griffith.authorWang, Qilin

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