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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
- 2016.10
- 수록면
- 429 - 433 (5page)
이용수
초록· 키워드
오류제보하기
Adsorption and precipitation of cadmium (Cd) could be dependent on rate of P addition and Cd level in soil. Therefore, the objective of this study was to examine how addition rate of P affect mechanisms of Cd immobilization such as adsorption and precipitation in different levels of Cd in soil. Arable soils were spiked with inorganic Cd (CdCl₂) to give a total Cd concentration of 10, 100, and 1,000 mg Cd kg<SUP>-1</SUP>. Monopotassium phosphate (KH₂PO₄, MPP) was selected as phosphate material and mixed with the pretreated arable soil at the rates of 0, 800, 1,600 and 3,200 mg P kg-1. The mixture soils were incubated at 25°C for 8 weeks in dark condition. Soil pH decreased with increasing MPP addition rate in all levels of Cd but negative charge of soil increased, thereby reducing 1 M NH₄OAc extractable Cd. Soil solutions were undersaturated with respect to CdCO₃ and Cd₃(PO₄)₂ with all P addition rate in soil with low Cd level (≤ 100 mg Cd kg-1) but supersaturated in soil with high Cd level (1,000 mg Cd kg-1). From the above results, Cd solubility was controlled by precipitation of Cd minerals such as CdCO₃ and Cd₃(PO₄)₂ in soil with high Cd level but by Cd adsorption induced by increase in negative charge of soil with low level of Cd.
목차
Introduction
Materials and Methods
Results and Discussion
Conclusion
References
참고문헌 (21)
참고문헌 신청
[학술지(정기간행물)] - Andersson, A. / 1974 / Influence of lime and soil pH on Cd availability to plant / Ambio 3 : 198 ~ 200
[학술지(정기간행물)] - Hong, C.O. / 2008 / Feasibility of phosphate fertilizer to immobilize cadmium in a Field / Chemosphere 70 : 2009 ~ 2015
[학술지(정기간행물)] - Hong, C.O. / 2010 / Comparison of oyster shell and calcium hydroxide as liming materials for immobilizing cadmium in upland soil / Biol. Fertil. Soils 46 : 491 ~ 498
[학술지(정기간행물)] - Hong, C.O. / 2014 / Soil pH effect on phosphate induced cadmium precipitation in arable soil / Bull. Environ. Contam. Toxicol 93 : 101 ~ 105
[학술지(정기간행물)] - Alidoust, D. / 2015 / Mechanism of cadmium biosorption from aqueous solution using calcined oyster shells / J. Environ. Manage 150 : 103 ~ 110
[학술지(정기간행물)] - Hong, C.O. / 2008 / Feasibility of phosphate fertilizer to immobilize cadmium in a Field / Chemosphere 70 : 2009 ~ 2015
[학술지(정기간행물)] - Hong, C.O. / 2010 / Comparison of oyster shell and calcium hydroxide as liming materials for immobilizing cadmium in upland soil / Biol. Fertil. Soils 46 : 491 ~ 498
[학술지(정기간행물)] - Hong, C.O. / 2014 / Soil pH effect on phosphate induced cadmium precipitation in arable soil / Bull. Environ. Contam. Toxicol 93 : 101 ~ 105
[학술지(정기간행물)] - Alidoust, D. / 2015 / Mechanism of cadmium biosorption from aqueous solution using calcined oyster shells / J. Environ. Manage 150 : 103 ~ 110
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UCI(KEPA) : I410-ECN-0101-2017-523-001637908