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NTIS 바로가기한국농공학회논문집 = Journal of the Korean Society of Agricultural Engineers, v.59 no.5, 2017년, pp.41 - 49
구본운 (Department of Bioresources and Rural systems Engineering, Hankyong National University) , 김문주 (Department of Bioresources and Rural systems Engineering, Hankyong National University) , 박성직 (Department of Bioresources and Rural systems Engineering, Hankyong National University)
This study was aimed to investigate the influence of cation exchange capacity (CEC) and application amounts of zeolite on the stabilization of heavy metals (As, Ni, Pb, and Zn) in upland soils. The upland soils were sampled from field near mines located in Gyeonggi Province. The CEC of zeolite was t...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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중금속의 특징은? | , 2008). 이러한 중금속은 인체에 매우 유독한 물질로 극히 미량일지라도 인체의 기능을 저해할 수 있다. 중금속은 인체에 미치는 유해성에 따라서 유해 금속 (Cd, As, Hg, Pb, Cr, Ni)과 발암성 돌연변이 등 유전자에 영향을 미치는 유전 독성 금속 (Cd, Co,Cr, Mn, Ni)으로 분류된다 (WHO, 1992; Go et al. | |
안정화 공법의 장점은? | 안정화 공법은 오염물질이 토양으로부터 직접적으로 제거되지는 않지만, 오염토양에 중금속을 안정화 시킬 수 있는 물질을 주입하여 토양 내에 존재하는 중금속을 흡착 (adsorption), 침전 (precipitation) 등을 통해 용해도 (solubility)나 독성이 낮은 형태로 변화시킨다. 또한, 생물이용성 (bioavailability) 및 추출가능성 (extractablity)을 낮춰 잠재적 위해성을 감소시키는 효과가 있다 (Basta and McGowen, 2004). 굴착 없이 현장에 바로 적용이 가능하며, 광범위하게 분포된 저농도 및 고농도의 중금속으로 오염된 토양을 처리하는데 효과적이며 비용이적게 소요되는 장점을 가지고 있다 (Basta and McGowen, 2004) | |
중금속 오염토양에 대한 정화 공법은 어떤 것들이 있는가? | 중금속 오염토양에 대한 정화 공법으로는 고형화 (solidification), 유리화 (vitrification), 토양세척/산추출법 (soil washing/acid extraction), 원위치 토양세정공법 (in-situ soil flushing) 등이 있다. 그러나 이러한 공법들은 오염된 농경지에 적용하기에는 경제적인 측면이나 기술적인 측면에서 현실적인 어려움이 있다 (Korea Rural Community Corporation, 2008). |
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