상하수도학회지 (Journal of Korean Society of Water and Wastewater)

  • 제19권1호
  • /
  • Pages.53-60
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  • 2005
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  • 1225-7672(pISSN)
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  • 2287-822X(eISSN)
대한상하수도학회 (The Korean Society of Water and Wastewater)
권호 표지

2가철 시멘트 수화물에 의한 질산성 질소의 제거

Removal of Nitrate by Ferrous Cement Hydrates

  • 투고 : 2004.10.27
  • 심사 : 2005.01.24
  • 발행 : 2005.02.15
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초록

Ferrous cement hydrates made from hydrating Portland cement doped with Fe (II) were reported to reductively dechlorinate chlorinated organics and to reduce Cr (VI) to Cr (III). In this study, kinetics of nitrate removal by ferrous cement hydrates were investigated. Nitrate removal kinetics were characterized by experimental variables such as cement hydration, amount of cement addition, Fe (II) dose, pH, and byproducts. As a result, hydrated cement showed better performances than non-hydrated cement due to the formation of LDH (layered double hydroxide). Doping of Fe (II) into the cement was found to improve removal efficiency at high pHs by association with Fe (II) sorbed on cement hydrates as a reactive reductant. Reduction of nitrate produced ammonium as a major product, which accounted for 63.5% of the final products, and nitrite (0.15%) as a minor product. These results indicate that the developed media are effective as sorbent/reducing agents in the nitrate removal and the reaction mechanisms of nitrate removal are sorption and reduction.

키워드

과제정보

연구 과제 주관 기관 : 한국학술진흥재단

참고문헌

  1. 김중호 . 강완협 . 박주양 (2004) 시멘트/Fe(II)에 의한 Vinyl Chloride 의 환원성 분해 특성, 대한환경공학회지 26(6). pp.703-707
  2. 김중호 . 강완협 . 황인성 . 박주양 (2004) Cement/Slag/Fe(II)에 의한 TCE 함유 액상폐기물의 분해성 고형화/안정화, 한국폐기물학회지, 21(5). pp.456-464
  3. 박현진 . 황인성 . 손석일 . 박주양 (2003) 시멘트/Fe(II)에 의한 TCE 의 환원적 탈염소화 반응의 최적조건, 대한환경공학회지 25(7), pp.838-845
  4. 쌍용시멘트 (2002) 시벤트 시험 성적
  5. 정용진 . 강완협 . 황인성 . 박주양 (2004) Ferrous Cement Paste와 Slag를 이용한 TCE 제거 PRB 매질의 개발, 대한환경공학회지, 26 (9). pp.994-1000
  6. 최승희 . 김지형 (2003) 상업용 0가 철에 의한 질산성 질소의 $N_2$gas 로의 화학적 탈질 반응 연구 I: 회 분석 실험, 한국폐기물학회지 20(4). pp.305-312
  7. 환경부 (2002) 환경통계연감
  8. Alowitz, M.J. and Scherer, M.M. (2002) Kinetics of Nitrate, Nitrite, and Cr(VI) Reduction by Iron Metal, Environ. Sci. Technol., 36(3), pp. 299-306 https://doi.org/10.1021/es011000h
  9. Batchelor, B. and Lawrence, A.W. (1978) Autotrophic Denitrification Using Elemental Sulfur, J. Wat. Pollut. Control Fed., 50(8), pp. 1986-2001
  10. Bond, D.L. and Fendorf, S. (2003) Kinetics and Structural Constraints of Chromate Reduction by Green Rusts, Environ. Sci. Technol., 37(12), pp. 2750-2757 https://doi.org/10.1021/es026341p
  11. Cheng, I. F., Muftikian, R., Fernando, Q. and Korte, N. (1997) Reduction of Nitrate to Ammonia by Zero-Valent Iron, Chemosphere 35(11), pp. 2689-2695 https://doi.org/10.1016/S0045-6535(97)00275-0
  12. Clesceri, L. S., Greenberg, A. E. and Eaton, A. D. (1998) Standard Methods for the Examination of Water and Wastewater, 20th Ed., American Public Health Association, Washington, DC
  13. Erbs, M., Hansen, H. C. B. and Olsen, C. E. (1999) Reductive Dechlorination of Carbon Tetrachloride Using Iron(II) Iron(III) Hydroxide Sulfate (Green Rust), Environ. Sci. Technol., 33(2), pp. 307-311 https://doi.org/10.1021/es980221t
  14. Hansen, H. C. B.,Koch, C. B., Nancke-Krogh, H., Borggaard, O. K. and Sorensen, J. (1996) Abiotic Nitrate Reduction to Ammonium: Key Role of Green Rust, Environ. Sci. Technol., 30(6), pp, 2053-2056 https://doi.org/10.1021/es962706s
  15. Huang, C. P., Wang, H. W. and Chiu, P. C. (1998) Nitrate Reduction by Metallic Iron, Wat. Res., 32(8), pp. 2257-2264 https://doi.org/10.1016/S0043-1354(97)00464-8
  16. Hwang, I. and Batchelor, B. (2001) Reductive Dechlorination of Tetrachloroethylene in Soils by Fe(II) Based Degradative Solidification/Stabilization, Environ. Sci. Technol., 35(18), pp. 3792-3797 https://doi.org/10.1021/es010619g
  17. Hwang. I. and Batchelor. B. (2000) Reductive Dechlorination of Tetrachloroethylene by Fe(II) in Cement Slurries, Environ. Sci. Technol., 34(23), pp. 5017-5022 https://doi.org/10.1021/es991377b
  18. Lee, W. and Batchelor, B. (2002) Abiotic Reductive Dechlorination of Chlorinated Ethylenes by Iron-Bearing Soil Minerals. 2. Green Rust, Environ. Sci. Technol., 36(24), pp.5348-5354 https://doi.org/10.1021/es0258374
  19. Legrand, L., Figuigui, A.E., Mercier, F. and Chausse, A. (2004) Reduction of Aqueous Chromate by Fe(II)/Fe(III) Carbonate Green Rust: Kinetic and Mechanistic Studies, Environ. Sci. Technol., 38(17), pp. 4587-4595 https://doi.org/10.1021/es035447x
  20. Loyaux-Lawniczak, S., Refait, P., Ehrhardt. J.J., Lecomte, P. and Genin, J.M.R. (2000) Trapping of Cr by Formation of Ferrihydrite During the Reduction of Chromate Ions by Fe(II)-Fe(III) Hydroxysalt Green Rusts, Environ. Sci. Technol., 34(3), pp. 438-443 https://doi.org/10.1021/es9903779
  21. Moon, H.S., Chang, S.W., Nam, K. and Kim, J.Y.(2004) Effect of TCE and Heavy Metal on the Biological Reactive Barrier System Using Autotrophic Denitrification, Remediation of chlorinated and recalcitrant compounds, The 4th international conference, May 24-27, Monterey, California, USA
  22. O'Loughlin, E.J., Kemner, K.M. and Burris, D.R. (2003) Effects of AgI, AuIII, and Cull on the Reductive Dechlorination of Carbon Tetrachloride by Green Rust, Environ. Sci. Technol., 37(13), pp. 2905-2912 https://doi.org/10.1021/es030304w
  23. Park, J.Y., Kang, W.H. and Hwang, I. (2003) Hexavalent Chromium Uptake and Release in Cement Pastes, Manuscript submitted to Environmental Engineering Science
  24. Su, C. and Puls, R.W. (2004) Nitrate Reduction by Zerovalent Iron: Effects of Formate, Oxalate, Citrate, Chloride, Sulfate, Borate, and Phosphate, Environ. Sci. Technol., 38(9), pp. 2715-2720 https://doi.org/10.1021/es034650p
  25. Williams, A.G.B. and Scherer, M.M. (2001) Kinetics of Cr(VI) Reduction by Carbonate Green Rust, Environ. Sci. Technol., 35(17), pp. 3488-3494 https://doi.org/10.1021/es010579g