Coal fly ash and synthetic coal fly ash aggregates as reactive media to remove zinc from aqueous solutions
DC Field | Value | Language |
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dc.contributor.author | Hong, Jung-Ki | - |
dc.contributor.author | Jo, Ho Young | - |
dc.contributor.author | Yun, Seong-Taek | - |
dc.date.accessioned | 2021-09-08T17:05:07Z | - |
dc.date.available | 2021-09-08T17:05:07Z | - |
dc.date.created | 2021-06-10 | - |
dc.date.issued | 2009-05-15 | - |
dc.identifier.issn | 0304-3894 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/120045 | - |
dc.description.abstract | Coal fly ash (CF) and synthetic coal fly ash aggregates (SCFAs) were evaluated as low-cost reactive media for the remediation of groundwater contaminated with Zn. The SCFAs were prepared by mixing CF, sodium silicate, and cleionized (DI) water. Serial batch kinetic and static tests were conducted on both CF and SCFAs, under various conditions (i.e., pH, initial Zn concentration, reaction time, and solid dosage), using Zn(NO3)(2)center dot 6H(2)O solutions. Serial column tests were also conducted on both CF and SCFAs. The final rather than the initial pH of the solution had a greater effect on the removal of Zn. At pH > 7.0, the removal of Zn was due to precipitation, whereas at <7.0, the removal of Zn was due to adsorption onto the reactive media. The removal of Zn increased with increasing dosage of the reactive medium and decreasing initial Zn concentration. The results of the column and batch tests were comparable. Preferential flow paths were observed with CF, but not SCFA. The hydraulic conductivity of CF was more significantly decreased than that of SCFA with increasing dry density of the specimen. (C) 2008 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | HEAVY-METALS | - |
dc.subject | BARRIERS | - |
dc.subject | ADSORPTION | - |
dc.subject | COLUMN | - |
dc.subject | WATER | - |
dc.subject | GROUNDWATER | - |
dc.subject | ZEOLITES | - |
dc.subject | SORPTION | - |
dc.subject | PERFORMANCE | - |
dc.subject | ADSORBENTS | - |
dc.title | Coal fly ash and synthetic coal fly ash aggregates as reactive media to remove zinc from aqueous solutions | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Jo, Ho Young | - |
dc.contributor.affiliatedAuthor | Yun, Seong-Taek | - |
dc.identifier.doi | 10.1016/j.jhazmat.2008.08.001 | - |
dc.identifier.scopusid | 2-s2.0-61349118004 | - |
dc.identifier.wosid | 000264667200032 | - |
dc.identifier.bibliographicCitation | JOURNAL OF HAZARDOUS MATERIALS, v.164, no.1, pp.235 - 246 | - |
dc.relation.isPartOf | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.citation.title | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.citation.volume | 164 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 235 | - |
dc.citation.endPage | 246 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.subject.keywordPlus | HEAVY-METALS | - |
dc.subject.keywordPlus | BARRIERS | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | COLUMN | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | GROUNDWATER | - |
dc.subject.keywordPlus | ZEOLITES | - |
dc.subject.keywordPlus | SORPTION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | ADSORBENTS | - |
dc.subject.keywordAuthor | Coal fly ash | - |
dc.subject.keywordAuthor | Synthetic coal fly ash aggregate | - |
dc.subject.keywordAuthor | Reactive media | - |
dc.subject.keywordAuthor | Contaminated groundwater | - |
dc.subject.keywordAuthor | Zinc | - |
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