지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.9
- 수록면
- 304 - 310 (7page)
이용수
초록· 키워드
오류제보하기
Removal of arsenic (As) from soil aggregates with particle sizes of > 2.0, 2.0-0.25, 0.25-0.053, < 0.053 mm by soil washing of KH₂PO₄ and the kinetics of As releasing from soil aggregates were investigated. Effects of KH₂PO₄ concentration, ratio of liquid/soil and washing duration on the removal were fully explored. The results showed that the high As removal was obtained in > 2 mm aggregates (48.56%) and < 0.053 mm aggregates (42.88%) under the optimum condition (KH₂PO₄ concentration of 0.1 mol/L, and liquid/soil ratio (10 mL/g) for 360 min). 62.82% of As was extracted from aggregates with size less than 0.25 mm. Only 11.88% was contributed by the large aggregates (> 2.0mm). Using KH₂PO₄ washing, it was also found that extracted As is mainly in form of either specifically sorbed As or As associated with oxides of Fe and Al. Elovich model can describe the removal process of As more precisely than Two-constant kinetic models. The optimum washing conditions and removal process is also applied to bulk soil. This technique in this study is reliable, cost-effective and offers a great potential for practical application in soil remediation.
목차
ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
References
참고문헌 (38)
참고문헌 신청
[학술지(정기간행물)] - Moon HD / 2004 / Arsenic immobilization by calcium-arsenic precipitates in lime treated soils / Sci. Total Environ 330 : 171 ~ 185
[학술지(정기간행물)] - Warren GP / 2003 / Field trials to assess the uptake of arsenic by vegetables from contaminated soils and soil remediation with iron oxides / Sci. Total Environ 311 : 19 ~ 33
[학술지(정기간행물)] - Guo W / 2007 / Is the effect of silicon on rice uptake of arsenate (AsV) related to internal silicon concentrations, iron plaque andphosphate nutrition / Environ. Pollut 14 : 251 ~ 257
[학술지(정기간행물)] - Leštan D / 2008 / The use of chelating agents in the remediation of metal-contaminated soils: a review / Environ. Pollut 153 : 3 ~ 13
[학술지(정기간행물)] - Mulligan CN / 2005 / Environmental applications for biosurfactants / Environ. Pollut 133 : 183 ~ 198
[학술지(정기간행물)] - Warren GP / 2003 / Field trials to assess the uptake of arsenic by vegetables from contaminated soils and soil remediation with iron oxides / Sci. Total Environ 311 : 19 ~ 33
[학술지(정기간행물)] - Guo W / 2007 / Is the effect of silicon on rice uptake of arsenate (AsV) related to internal silicon concentrations, iron plaque andphosphate nutrition / Environ. Pollut 14 : 251 ~ 257
[학술지(정기간행물)] - Leštan D / 2008 / The use of chelating agents in the remediation of metal-contaminated soils: a review / Environ. Pollut 153 : 3 ~ 13
[학술지(정기간행물)] - Mulligan CN / 2005 / Environmental applications for biosurfactants / Environ. Pollut 133 : 183 ~ 198
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UCI(KEPA) : I410-ECN-0101-2017-539-001842892