Factors influencing As(V) stabilization in the mine soils amended with iron-rich materials
DC Field | Value | Language |
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dc.contributor.author | Kim, Mijin | - |
dc.contributor.author | Kim, Juhee | - |
dc.contributor.author | Kim, Minhee | - |
dc.contributor.author | Kim, Yong-Seong | - |
dc.contributor.author | Nam, Seung Mo | - |
dc.contributor.author | Moon, Deok Hyun | - |
dc.contributor.author | Hyun, Seunghun | - |
dc.date.accessioned | 2021-09-02T07:30:15Z | - |
dc.date.available | 2021-09-02T07:30:15Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2018-09 | - |
dc.identifier.issn | 0944-1344 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/73677 | - |
dc.description.abstract | Chemical stability of As(V) in amended mine-impacted soils was assessed according to functions of incubation period (0, 1, 2, 4, and 6 months), amendment dose (2.5 and 5%), and application timing (0 and 3rd month). Six soils contaminated with 26-209 mg kg(-1) of As(V) were collected from two abandoned mine sites and were treated with two alkaline iron-rich materials (mine discharge sludge (MS) and steel-making slag (SS)). Seventeen to 23% of As(V) in soils was labile. After each designated time, As(V) stability was assessed by the labile fractions determined with sequential extraction procedures (F1-F5). Over 6 months, a reduction (26.9-70.4%) of the two labile fractions (F1 and F2) and a quantitative increase (7.4-29.9%) of As(V) in F3 were observed (r (2) = 0.956). Two recalcitrant fractions (F4 and F5) remained unchanged. Temporal change of As(V) stability in a sample was well described by the two-domain model (k (fast), k (slow), and F-fast). The stabilization (%) correlated well with the fast-stabilizing domain (F-fast), clay content (%), and Fe oxide content (mg kg(-1)), but correlated poorly with kinetic rate constants (k (fast) and k (slow)). Until the 3rd month, the 2.5%-MS amended sample resulted in lower As(V) stabilization (25-40%) compared to the 5% sample (50-60%). However, the second 2.5% MS addition on the 2.5% sample upon the lapse of the 3rd month led to a substantial reduction (up to 38%) of labile As(V) fraction in the following 4th and 6th months. As a result, an additional 15-25% of As(V) stability was obtained when splitting the amendment dose into 3-month intervals. In conclusion, the As(V) stabilization by Fe-rich amendment is time-dependent and its efficacy can be improved by optimizing the amendment dose and its timing. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | SPRINGER HEIDELBERG | - |
dc.subject | ASH DISPOSAL FACILITIES | - |
dc.subject | ARSENIC FRACTIONATION | - |
dc.subject | TERM | - |
dc.subject | V) | - |
dc.subject | BIOACCESSIBILITY | - |
dc.subject | ATTENUATION | - |
dc.subject | MECHANISMS | - |
dc.subject | ADSORPTION | - |
dc.subject | AMENDMENTS | - |
dc.subject | MOBILITY | - |
dc.title | Factors influencing As(V) stabilization in the mine soils amended with iron-rich materials | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Juhee | - |
dc.contributor.affiliatedAuthor | Hyun, Seunghun | - |
dc.identifier.doi | 10.1007/s11356-017-0044-9 | - |
dc.identifier.scopusid | 2-s2.0-85028800625 | - |
dc.identifier.wosid | 000444202800008 | - |
dc.identifier.bibliographicCitation | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, v.25, no.27, pp.26757 - 26765 | - |
dc.relation.isPartOf | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | - |
dc.citation.title | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | - |
dc.citation.volume | 25 | - |
dc.citation.number | 27 | - |
dc.citation.startPage | 26757 | - |
dc.citation.endPage | 26765 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.subject.keywordPlus | ASH DISPOSAL FACILITIES | - |
dc.subject.keywordPlus | ARSENIC FRACTIONATION | - |
dc.subject.keywordPlus | TERM | - |
dc.subject.keywordPlus | V) | - |
dc.subject.keywordPlus | BIOACCESSIBILITY | - |
dc.subject.keywordPlus | ATTENUATION | - |
dc.subject.keywordPlus | MECHANISMS | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | AMENDMENTS | - |
dc.subject.keywordPlus | MOBILITY | - |
dc.subject.keywordAuthor | As(V) | - |
dc.subject.keywordAuthor | Stabilization | - |
dc.subject.keywordAuthor | Amendment | - |
dc.subject.keywordAuthor | Abandoned mine | - |
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