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상동광산 광물찌꺼기의 비소제거를 위한 부유선별에서 인산염 첨가의 영향

The Effect of Phosphate Addition in Flotation to Remove As in Tailings from Sangdong Mine

  • 황민수 (동아대학교 공과대학 에너지.자원공학과) ;
  • 김소연 (동아대학교 공과대학 에너지.자원공학과) ;
  • 강헌찬 (동아대학교 공과대학 에너지.자원공학과)
  • Hwang, Min Su (Department of Energy and Mineral Resources Engineering, Dong-A University) ;
  • Kim, So Yeon (Department of Energy and Mineral Resources Engineering, Dong-A University) ;
  • Kang, Heon Chan (Department of Energy and Mineral Resources Engineering, Dong-A University)
  • 투고 : 2014.08.07
  • 심사 : 2014.10.08
  • 발행 : 2014.10.30

초록

As의 평균함량이 285 mg/kg인 상동광산 광물찌꺼기의 As제거를 위한 부유선별에서 인산염 첨가에 따른 영향을 알아보기 위해 제3인산나트륨(이하 T.S.P)을 분산제로 첨가하여 부유선별을 실시하였다. 먼저 분산제 없이 부유선별을 진행한 결과, As제거율은 88.7%, 부상물의 무게비는 2.52%였고 추가적으로 T.S.P를 첨가하여 부유선별을 실시한 결과 각각 92.74%, 2.26%로 As제거율은 증가하고 부상물의 무게비는 감소하였다. 두 실험의 부상물을 대상으로 입도분석을 진행한 결과, T.S.P를 첨가하지 않은 부상물은 평균입도가 19.34 um, 10 um이하의 양이 전체의 40.2%인 반면 T.S.P를 첨가할 경우, 각각 176.8 um, 6.5%였으며 이를 통해 미립입자의 부유가 억제되었음을 확인하였다. 또한 X.R.F 분석을 통해 두 실험 부상물의 실리카($SiO_2$)함량을 비교해본 결과, T.S.P를 첨가하지 않은 경우 42.74%, 첨가한 부상물의 경우 29.56%로 실리카계열의 친수성입자가 효과적으로 분산되어 부유가 억제되는 결과를 확인하였다.

Froth flotation was performed to study the effect of phosphate addition in the experiment to remove As from tailing of Sang-dong Mine. The experiment without Trisodium phosphate (T.S.P) showed that the removal rate of As was 88.7% and weight-ratio of floating material was 2.52%. By contrast, the experiment with T.S.P showed that the removal rate of As was 92.74% and weight-ratio of floating material was 2.26%. In flotation without T.S.P, the average particle size of float material was 19.34 um and the amount less than 10um was 40.2%. On the other hand, in flotation with T.S.P the average particle size of float material was 176.8 um and the amount less than 10um was 6.5%. The result of X.R.F analysis presented that contents of $SiO_2$ was 42.74% in float material of the experiment without T.S.P. In contrast, contents of $SiO_2$ was 29.56% in float material of the experiment with T.S.P.

키워드

참고문헌

  1. Yong-Su Choi et al, 2003: Survey of contamination of soil in abandoned mine, Ministry of Environment.
  2. Man Hee Kang, 2004: A study on vertical variation of elements and possibility of recycling for tailings from the sangdong W mine, Korea, A master's thesis in semyung university.
  3. Mine Reclamation Corp, 2010: Result report of Project on Harmlessness of Tailing of SongCheon Mine, pp. 1-3, Korea.
  4. Am Jang, Yong su Choi, Kyoung woog Kim, In s. Kim, 1999: Characteristics of Heavy Metals in Tailing Wastes from Closed Metal Mine Area, J. of Korean Society of Environmental Engineers, 21(1), pp. 41-52.
  5. Jung woo Kang, Tae bum Choi, Yong ho Seon, Yoon young Chang, 2003: Stabilization of Contaminated Soils by Heavy Metals using Ca-Phosphates, J. of Korean Society of Environmental Engineers, 25(5), pp. 554-559.
  6. Jong mun Cha, Jay hyun Park, Heon Chan Kang, 2012: Mineralogical Characteristics and Removal of Heavy Metals from Gum-poong Mine Tailings, J. of Korean Inst. of Resources Recycling, 21(6), pp. 51-57. https://doi.org/10.7844/kirr.2012.21.6.51
  7. Moon young Jung, Yun wang Choi, Myung chae Jung, 2006: Properties of the Tailings from the Sangdong Mine and Its Recycling, J. of The Korean Society of Mineral and Energy Resouces Engineers, 43(5), pp. 486-497.
  8. Kang moon Lee, 1995: Chapter3. Chemicophysical sorting processing, Mineral Processing Engineering, pp. 277-279, Bando Publishing, Korea.
  9. Min sik Kim, Sang ho Lee, Mi jeong Park, Hong il Choe, In jae Yang, Heon chan Kang, 2013: Study on the Removal As from Tailing of Sangdong Mine using Froth Flotation, J. of Korean Inst. of Resources Recycling, 22(5), pp. 43-49. https://doi.org/10.7844/kirr.2013.22.5.43
  10. Jong deuk Kim, 2000: Chapter6. Non-equilibrium dispersing, Theory of interface phenomenon, pp. 293-516, Arche Publishing, Korea.