대남광산 농경지 토양 내 중금속 특성에 따른물리적 선별 처리효율에 관한 연구 : A Study on the Removal Efficiency of Heavy Metals in Daenam Mine Agricultural Soil Using Heavy metal Properties by Physical separation
A Study on the Removal Efficiency of Heavy Metals in Daenam Mine Agricultural Soil Using Heavy metal Properties by Physical separation
- 주제(키워드) Aerial separation , Gravity separation , Magnetic separation , Size separation
- 발행기관 한국지하수토양환경학회
- 발행년도 2013
- 총서유형 Journal
- UCI G704-000547.2013.18.5.005
- KCI ID ART001818603
- 본문언어 한국어
초록/요약
The main objective was to evaluate the efficiencies of different separation techniques, such as gravity separation, magnetic separation, and aerial separation. Zinc and cadmium removal efficiencies by gravity separation and magnetic separation were 28.3~29.3% and 19.1%, respectively, and were higher than the efficiency obtained by aerial separation. Results showed that the combination of gravity separation and magnetic separation in series which was to maximize the removal efficiencies gave removal efficiency of 21.5~38.7% for zinc and 22.1~23.4% for cadmium. The mass of soil meeting the regulation standards for zinc and cadmium after retrieval from the combined separation process accounted for approximately 80% of the treated soil that would be reusable without the pre-treatment procedure as the neutralization process using in the soil washing method. Physical separation techniques utilizing heavy metal properties are the alternative method to remediate heavy-metal contaminated soils in environmental and economic aspects.
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