dc.contributor.author | Vasarevičius, Saulius | |
dc.contributor.author | Seniūnaitė, Jurgita | |
dc.contributor.author | Vaišis, Vaidotas | |
dc.date.accessioned | 2023-09-18T16:17:53Z | |
dc.date.available | 2023-09-18T16:17:53Z | |
dc.date.issued | 2022 | |
dc.identifier.uri | https://etalpykla.vilniustech.lt/handle/123456789/112931 | |
dc.description.abstract | Bottom ash (BA) is the main residue left by municipal solid waste incineration (MSWI). As the circular economy is strengthened, the use of BA in civil engineering is increasing, but its successful use is hampered by heavy metal leaching. In this study, we investigated the influence of natural weathering (6 months) on the stabilization of heavy metals (Cu, Zn, and Pb) with different particle sizes in MSWI BA. Natural weathering is the most popular and cost-effective treatment method for BA. During this process, calcium carbonate (CaCO3) is produced, which causes a reduction in heavy metal leaching. We used the following methods in the analysis: The fractionation of BA, XRF, and XRD; an extraction test (LST EN 12457-2:2003); and AAS. The results showed that the concentrations of all elements in BA decreased during natural weathering. An analysis of the mineralogical composition showed a very high (>20%) content of calcium carbonate (CaCO3). The calcium carbonate content increased by 3.2% during weathering because the Ca(OH)2 in fractions <5.6 mm and <40.0 mm was hydrolyzed to CaCO3. Our analysis showed that the metal concentrations (Cu and Pb) in untreated MSWI bottom ash eluate exceeded the limit values, and thus it cannot be used in civil engineering. After three months of stabilization, the heavy metal concentrations were less than the limit values. | eng |
dc.format | PDF | |
dc.format.extent | p. 1-15 | |
dc.format.medium | tekstas / txt | |
dc.language.iso | eng | |
dc.relation.isreferencedby | Science Citation Index Expanded (Web of Science) | |
dc.relation.isreferencedby | Scopus | |
dc.relation.isreferencedby | INSPEC | |
dc.relation.isreferencedby | DOAJ | |
dc.relation.isreferencedby | J-Gate | |
dc.rights | Laisvai prieinamas internete | |
dc.source.uri | https://www.mdpi.com/2076-3417/12/7/3419 | |
dc.source.uri | https://talpykla.elaba.lt/elaba-fedora/objects/elaba:125025112/datastreams/MAIN/content | |
dc.title | Impact of natural weathering on stabilization of heavy metals (Cu, Zn, and Pb) in MSWI Bottom Ash | |
dc.type | Straipsnis Web of Science DB / Article in Web of Science DB | |
dcterms.accessRights | This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/) | |
dcterms.license | Creative Commons – Attribution – 4.0 International | |
dcterms.references | 41 | |
dc.type.pubtype | S1 - Straipsnis Web of Science DB / Web of Science DB article | |
dc.contributor.institution | Vilniaus Gedimino technikos universitetas | |
dc.contributor.faculty | Aplinkos inžinerijos fakultetas / Faculty of Environmental Engineering | |
dc.subject.researchfield | T 004 - Aplinkos inžinerija / Environmental engineering | |
dc.subject.studydirection | E03 - Aplinkos inžinerija / Environmental engineering | |
dc.subject.vgtuprioritizedfields | AE0202 - Aplinkos apsaugos technologijos / Environmental protection technologies | |
dc.subject.ltspecializations | L102 - Energetika ir tvari aplinka / Energy and a sustainable environment | |
dc.subject.en | municipal solid waste incineration | |
dc.subject.en | bottom ash | |
dc.subject.en | natural weathering | |
dc.subject.en | heavy metals | |
dc.subject.en | copper | |
dc.subject.en | zinc | |
dc.subject.en | lead | |
dcterms.sourcetitle | Applied sciences: Special issue: New trends in waste management models | |
dc.description.issue | iss. 7 | |
dc.description.volume | vol. 12 | |
dc.publisher.name | MDPI | |
dc.publisher.city | Basel | |
dc.identifier.doi | 000781376200001 | |
dc.identifier.doi | 10.3390/app12073419 | |
dc.identifier.elaba | 125025112 | |