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Identification of Arsenic Speciation and Accumulated Organic Species in Different Environment of Organic Sedimentation

논문 기본 정보

저자정보
(National Institute of Advanced Industrial Science and Technology, Japan) (Geological Survey of Hokkaido, Japan) (Geological Survey of Hokkaido, Japan) (National Institute of Advanced Industrial Science and Technology, Japan) (National Institute of Advanced Industrial Science and Technology, Japan)
저널정보
한국토양비료학회 한국토양비료학회 학술발표회 초록집 20th WORLD CONGRESS OF SOIL SCIENCE
발행연도
수록면
25 - 25 (1page)
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Identification of Arsenic Speciation and Accumulated Organic Species in Different Environment of Organic Sedimentation
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    초록·키워드

    Natural source organic materials in the soils are effect on the mobility, accumulation, and leaching into the groundwater of various toxic elements. Arsenic is notably toxic elements, and widely and naturally distributed in geo-environment. The coexisting Iron, aluminum and lesser manganese oxides are strongly controlling the arsenic concentration in soil solution. The arsenic adsorption processes have been well studied including the competition of phosphorus and dissolved organic materials. On the other hand, arsenic accumulations in several natural peat sediments have been reported and sometime caused serious arsenic pollution by leaching from organic layer. The arsenic accumulation mechanism to organic materials and the effect of organic materials on arsenic desorption and leaching character of already trapped in peat sediments are not well reported. This work deals with the arsenic speciation and estimation of arsenic trapping organic species in alluvial organic sediments characterized by several sedimentation environments in Hokkaido prefecture, JAPAN. The arsenic speciation and organic species were identified by sequential extraction and FT-IR analysis. The difference of sedimentation is obviously characterizing the speciation of trapped arsenic. The flood plain sediments c ... 전체 초록 보기

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