한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제39권7호
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  • Pages.663-668
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  • 2002
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  • 1229-7801(pISSN)
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  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
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점토광물에 의한 중금속 흡착 특성

Properties of Heavy Metal Adsorption of Clay Minerals

  • 발행 : 2002.07.01
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초록

폐기물 함유 세라믹 재료의 성형과정에서 일차적인 중금속의 안정화를 알아보기 위하여 중금속(Cd, Cr, Cu, Fe, Pb, Zn) 표준용액의 농도를 각각 5, 10, 15, 20ppm으로 조절하여 점토, 백토와 제올라이트에 대해 회분식 흡착실험을 행하였다. 중금속 표준용액의 농도가 증가할수록 모든 시료에서 중금속 흡착률은 감소하는 경향을 보였다. 점토와 백토는 Cr을 제외한 모든 중금속에서 평균 80% 이상의 흡착률을 보였고, Fe와 Pb에서는 99% 이상의 우수한 흡착률을 보였다 점토와 백토를 혼합한 경우, Cr에 대한 흡착률이 점토와 백토에 비해 우수하였으나 Zn에 대한 흡착률은 상대적으로 작았다. Cr, Zn은 다른 중금속에 비해 낮은 중금속 흡착률을 보이는데, 이것은 낮은 pH에서 용액 내 수소이온과 이온교환경쟁을 벌이기 때문인 것으로 사료된다.

Cation exchange capacity of clay, white clay and zeolite was estimated by performing the powder adsorption test for 6 different heavy metal (Cd, Cr, Cu, Fe, Pb and Zn) standard solutions whose concentrations were varied by 5,10,15 and 20 ppm. The adsorption rate of heavy metals decreased with increasing the concentration of standard heavy metal solutions. The adsorption rate of the clay and the white clay showed more than 80% for the all tested heavy metals except Cr and especially above 99% for the Fe and the Pb. The Cr adsorption rate of the mixture of the clay and the white clay increased, however, that of Zn decreased. The adsorption rate of Cr and Zn showed relatively lower values as compared with those of the other heavy metals because the cation exchange H$\^$+/ ions and heavy metal ions of the clay or the white clay were in competition at low pH region.

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참고문헌

  1. J. Kor. Solid Waste Eng. Soc. v.16 no.1 Characteristics of Cement Based Solidification for Municipal Solid Waste Incineration Plant Fly Ash(in Kor.) S-W. Bae;C-Y. Han;B-J. Lee;Y-B. Kwon
  2. J. Kor. Ceram. Soc. v.38 no.10 Characteristics of Sintered Bodies Made from the System of Paper Sludge Ash-Fly Ash-Clay J-O. Hong;S-G. Kang;K-G. Lee;Y-T. Kim;Y-J. Kim;J-H. Kim;M-S. Park
  3. Principle of Contaminant Transport in Soils(1st ed.) R. N. Yong;A. M. O. Mohamed;B. P. Warkentin
  4. Applied Hydrogeology(3rd ed.) C. W. Fetter
  5. Water, Air and Soil Pollution v.100 no.1/2 Desorption of Cadmium(Ⅱ) from artificially Contaminated Sediments A. Franchi;A. P. David https://doi.org/10.1023/A:1018392022843
  6. Soil Sci. Soc. Am. J. v.38 Fixation of Zinc by Clay Minerals M. R. Reddy;H. F. Perkins https://doi.org/10.2136/sssaj1974.03615995003800020011x
  7. Soil Sci. v.99 Soil Organic Matter Complexes-6. Stability Constants of Zinc-humic acid Complexes at Different pH Values N. S. Randhawa;F. E. Broadbent https://doi.org/10.1097/00010694-196506000-00002
  8. Soil Sci. v.129 Zinc Adsorption in Some Soils as Affected by Exchangeable Cations U. C. Shukla;S. B. Mittal;R. K. Gupta https://doi.org/10.1097/00010694-198006000-00006
  9. Soil Sci. v.125 Mechanism of Zinc Adsorption by Iron and Aluminum Oxides M. Kalbasi;G. J. Racz;L. A. Lowen-Rudgers https://doi.org/10.1097/00010694-197803000-00004
  10. Soil Sci. Soc. Am. J. v.44 Sorption of Copper, Zinc and Cadmium by Some Acid Soils S. Kuo;A. S. Baker https://doi.org/10.2136/sssaj1980.03615995004400050019x
  11. J. Environ. Qual. v.15 Competitive Adsorption of Heavy Metal by Soils H. A. Elliot;M. R. Liberati;C. P. Huang https://doi.org/10.2134/jeq1986.00472425001500030002x
  12. Micronutrients in Agriculture W. L. Lindsay
  13. Soil Sci. Soc. Am. J. v.46 Influence of Solution Composition on Sorption of Zinc by Soils M. A. Elashidi;G. A. O'Conner https://doi.org/10.2136/sssaj1982.03615995004600060007x
  14. Soil Sci. Soc. Am. J. v.47 Adsorption of Cd(Ⅱ) and Cu(Ⅱ) by Na-montmorillonite at Low Surface Coverage P. I. William;J. Baham https://doi.org/10.2136/sssaj1983.03615995004700040011x
  15. J. Colloid and Interface Sci. v.47 Modeling Ionic Strength Effect on Cation Adsorption at Hydrous Oxide/Solution Interfaces K. F. Heyes;J. O. Leckie
  16. Soil Sci. Soc. Am. J. v.54 Adsorption of the Heavy Metals by Silicon and Aluminium Oxide Surfaces on Clay Minerals C. P. Schulthess;C. P. Huang https://doi.org/10.2136/sssaj1990.03615995005400030008x
  17. J. KSWPRC Dec. v.5 no.2 Adsorption Effect of Zeolite for Treatment of Heavy Metals in Wastewater(Ⅰ)(in Kor.) G. Yim;Y-W. Kim
  18. Soil Sci. Soc. Am. J. v.48 Effect of Soil pH on Adsorption of Lead, Copper and Nikel D. H. Robert https://doi.org/10.2136/sssaj1984.03615995004800050020x
  19. J. Colloid and Interface Sci. v.187 Removal of Pb(Ⅱ), Cu(Ⅱ) and Zn(Ⅱ) from Aqueous Solutions by Adsorption on Bentonite B. Gozen;A. Z. Aroguz;M. Z. Ozel https://doi.org/10.1006/jcis.1996.4537