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논문 기본 정보

자료유형
학술대회자료
저자정보
(Institute of Environmental Systems, Kyushu University) (Institute of Environmental Systems, Kyushu University) (Institute of Environmental Systems, Kyushu Univeristy) (Institute of Environmental Systems, Kyushu University)
저널정보
한국수자원학회 한국수자원학회 학술발표회 한국수자원학회 2004년도 학술발표회
발행연도
수록면
90 - 101 (12page)

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초록· 키워드

The present trend of disposing treated sewage water by allowing it to infiltrate the soil brings a new dimension to environmental problems. It is therefore necessary to identify the chemicals likely to be present in treated sewage water. A soil column experiment was conducted to determine the behavior of chemical species in soil columns applied with secondary treated sewage water. To predict the behavior of chemical species, a multicomponent solute transport model that includes the biochemical redox process and cation exchange process was developed. The model computes changes in concentration over time caused by the processes of advection, dispersion, biochemical reactions and cation exchange reactions. The solute transport model was able to predict the behavior of the different chemical species. The model reproduced the sequential reduction reaction. To design the safe depth of plow layer where $NO_3^-$ is totally reduced, a numerical study of $NO_3^-$ leach was done and it was found out that the pore velocity and concentration of $CH_2O$ at the inject water was found to affect $NO_3^-$ reduction in the mobile pore water phase. It is revealed that the multicomponent solute transport model is useful to design the land treatment system for $NO_3^-$ removal from wastewater.
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