Co-combustion of Zn/Cd-hyperaccumulator and textile dyeing sludge: Heavy metal immobilizations, gas-to-ash behaviors, and their temperature and atmosphere dependencies

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dc.authoridEvrendilek, Fatih/0000-0003-1099-4363
dc.contributor.authorWu, Xieyuan
dc.contributor.authorChen, Zhiliang
dc.contributor.authorLiu, Jingyong
dc.contributor.authorWei, Zebin
dc.contributor.authorChen, Zihong
dc.contributor.authorEvrendilek, Fatih
dc.contributor.authorSun, Shuiyu
dc.date.accessioned2024-09-25T19:58:38Z
dc.date.available2024-09-25T19:58:38Z
dc.date.issued2023
dc.departmentAbant İzzet Baysal Üniversitesien_US
dc.description.abstractThis study quantified and revealed the temperature and atmosphere dependencies of the enrichment rates and speciation distributions of Zn and Cd and the behaviors of Cl and S for the co-combustion of a hyperaccumulator (SAH) of Zn and Cd and textile dyeing sludge (TDS) at a blend ratio of 3:1 (ST31). The addition of Al-rich TDS to SAH provided the chemisorption sites for Zn and Cd and generated stable Al/Si structures for their stabilization in the ST31 ash. The rising temperature and the atmosphere change from N-2/O-2 to CO2/O-2 transformed Zn and Cd into their oxidizable and residual fractions. Cl promoted the volatilizations of the heavy metals, with its content in the ST31 ash falling from 86.28% at 650 ? to 17.98% at 950 ?. The S content (31.08-33.86%) of the ST31 ash existed mainly as CaSO4 and was slightly higher in the CO2/O-2 than N-2/O-2 atmosphere (29.45%) since the high CO2 concentration adversely influenced the decomposition of CaCO3, while S indirectly affected the migrations of Zn and Cd. The combined results of the experiments, thermodynamic simulations, and multi-objective optimization pointed to 850 ? in the oxy-fuel atmosphere with 30% O-2 concentration as the optimal settings in order to stabilize Zn and Cd with an acceptable risk. The possible reaction pathways and immobilization mechanisms were also derived considering the interactions among minerals, Zn, Cd, Cl, and S.en_US
dc.description.sponsorshipNational Natural Science Foundation of China [51978175]; Scientific and Tech- nological Planning Project of Guangzhou, China [202103000004]; Natural Science Foundation of Guangdong Province, China [2022A1515010825, 2019A1515012131]en_US
dc.description.sponsorshipThis research was financially supported by the National Natural Science Foundation of China (No. 51978175) , the Scientific and Tech- nological Planning Project of Guangzhou, China (No. 202103000004) , and Natural Science Foundation of Guangdong Province, China (No. 2022A1515010825;2019A1515012131) . We would like to thank Miss. Yang and Mr. Yan at Analysis and Test Center of Guangdong University of Technology for their assistance with TG-FTIR-GC/MS and XPS analyses.en_US
dc.identifier.doi10.1016/j.cej.2022.138683
dc.identifier.issn1385-8947
dc.identifier.issn1873-3212
dc.identifier.urihttps://doi.org/10.1016/j.cej.2022.138683
dc.identifier.urihttps://hdl.handle.net/20.500.12491/13679
dc.identifier.volume451en_US
dc.identifier.wosWOS:000863053500001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.institutionauthorChen, Zhibin
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofChemical Engineering Journalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmzYK_20240925en_US
dc.subjectHyperaccumulatoren_US
dc.subjectSludgeen_US
dc.subjectOxy-fuel combustionen_US
dc.subjectHeavy metalen_US
dc.subjectCl/Sen_US
dc.subjectImmobilization mechanismen_US
dc.titleCo-combustion of Zn/Cd-hyperaccumulator and textile dyeing sludge: Heavy metal immobilizations, gas-to-ash behaviors, and their temperature and atmosphere dependenciesen_US
dc.typeArticleen_US

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