여러 안정화제가 산성 및 알칼리 토양에서 중금속 안정화에 미치는 영향Effects of Various Amendments on Heavy Metal Stabilization in Acid and Alkali Soils
- Other Titles
- Effects of Various Amendments on Heavy Metal Stabilization in Acid and Alkali Soils
- Authors
- 김민석; 민현기; 김정규; 구남인; 박정식; 박관인
- Issue Date
- 2014
- Publisher
- 한국환경농학회
- Keywords
- Acid/alkali soil; Amendments; Bioavailability; Heavy metal; Stabilization
- Citation
- 한국환경농학회지, v.33, no.1, pp.1 - 8
- Indexed
- KCI
- Journal Title
- 한국환경농학회지
- Volume
- 33
- Number
- 1
- Start Page
- 1
- End Page
- 8
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/99876
- DOI
- 10.5338/KJEA.2014.33.1.1
- ISSN
- 1225-3537
- Abstract
- BACKGROUND: Recent studies using many amendments for heavy metal stabilization in soil were conducted in order to find out new materials. But, the studies accounting for the use of appropriate amendments considering soil pH remain incomplete. The aim of this study was to investigate the effects of initial soil pH on the efficiency of various amendments.
METHODS AND RESULTS: Acid soil and alkali soil contaminated with heavy metals were collected from the agricultural soils affected by the abandoned mine sites nearby. Three different types of amendments were selected with hypothesis being different in stabilization mechanisms; organic matter, lime stone and iron, and added with different combination. For determining the changes in the extractable heavy metals, water soluble, Mehlich-3, Toxicity Characteristic Leaching Procedure, Simple Bioavailability Extraction Test method were applied as chemical assessments for metal stabilization. For biological assessments, soil respiration and root elongation of bok choy (Brassica campestris ssp. Chinensis Jusl.) were determined.
CONCLUSION: It was revealed that lime stone reduced heavy metal mobility in acid soil by increasing soil pH and iron was good at stabilizing heavy metals by supplying adsorption sites in alkali soil. Organic matter was a good source in terms of supplying nutrients, but it was concerning when accounting for increasing metal availability.
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Collections - College of Life Sciences and Biotechnology > Division of Environmental Science and Ecological Engineering > 1. Journal Articles
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