Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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A Study on the Removal of Nitrate Nitrogen by Redox Reaction of Zinc in Acidic Atmosphere

산 처리를 통한 아연의 산화 환원 반응을 이용한 질산성 질소 제거에 관한 연구

  • Lee, Soo Jeong (Department of Chemical Engineering, Changwon National University) ;
  • Kim, Jong Hwa (Department of Chemical Engineering, Changwon National University) ;
  • Song, Ju Yeong (Department of Chemical Engineering, Changwon National University)
  • 이수정 (창원대학교 화공시스템공학과) ;
  • 김종화 (창원대학교 화공시스템공학과) ;
  • 송주영 (창원대학교 화공시스템공학과)
  • Received : 2017.04.20
  • Accepted : 2017.06.15
  • Published : 2017.06.30
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Abstract

This is a study on the removal of nitrate nitrogen from wastewater by oxidation and reduction reaction of zinc in an acidic atmosphere. The optimum removal rate of nitrate nitrogen and the optimum pH were studied by controlling the amount of zinc and sulfamic acid. The oxidation efficiency was higher at pH 2.0 in the range of pH 2.0 ~ 4.0 because the reaction occurred more strongly in strong acidic atmosphere. It is advantageous to reduce the nitrate ion to the final nitrogen gas by adding the sulfamic acid to the sulfurous acid because it consumes less $H^+$ ion than when the sulfamic acid is not present. According to the same amount of zinc, nitrate nitrogen was removed by 46.0% while sulfamic acid was not added, whereas nitrite nitrogen was removed by 93.0% by adding sulfamic acid. In addition, In this experiment, zinc was prepared in powder form and its reactivity was larger than that of other common zinc metal, so the removal efficiency was very high, about 80.0%, within one minute after the reaction.

본 연구는 강산 분위기에서 아연의 산화 환원 반응을 통한 폐수 중 질산성 질소 제거에 관한 연구이다. 폐수에 황산($H_2SO_4$)을 첨가하여 강산 분위기를 조성한 다음, 아연과 설파믹산을 넣어주게 되면 금속 아연이 산화되고, 이온화된 질산성 질소가 환원 처리되어 제거되는 연구이다. 산화 반응은 강산 분위기일수록 반응이 잘 일어나기 때문에 pH 2.0~4.0 범위 중 pH 2.0에서 제거효율이 높았다. 설파믹산을 첨가함으로써 질산 이온을 최종 질소가스로 환원시켜 제거하는 것이 설파믹산이 존재하지 않을 때보다 $H^+$ 이온 소모량이 적기 때문에 설파믹산을 투입하는 것이 유리하였다. 같은 아연 양에 따라 설파믹산을 넣지 않은 것은 질산성 질소가 46.0% 제거되는 반면, 설파믹산을 넣게 되면 질산성 질소가 93.0% 제거된다. 본 실험에서 아연은 입자가 분말 형태로 제조되어 반응성이 다른 일반 아연 금속보다 크기 때문에 반응 후 1분 만에 제거 효율이 약 80.0% 로 매우 높게 나타났다.

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References

  1. S. M. Lee and W. H. Yoon, Characteristics of nitrate nitrogen and phosphate removals by alumina cement, Journal of Korean Society of Urban Environment, 12(1), 35 (2012).
  2. S. J. Kwon, A study on the Removal of Nitrate from a Groundwater by Electrolysis, Younam University Master of Science Dissertation, (2006).
  3. B. U. Bae, Application of Ion Exchange Process for Removing Nitrate from Groundwater, Journal of the Institute of Industrial Technology, 11(2), 149 (2000).
  4. Anoop Kapoor and T. Viraraghavan, Nitrate Removal From Drinking Water - Review, Journal of Environmental Engineering, 123(4), 371 (1997). https://doi.org/10.1061/(ASCE)0733-9372(1997)123:4(371)
  5. M. S. Kim, B. S. Kim, E. Y. Kim, S. K. Kim, and J. C. Lee, Recovery of Platinum group metals from the leach solution of spent automotive catalysts by cementation, Journal of Korean Inst. of Resources Recycling, 20(4), 36 (2011). https://doi.org/10.7844/kirr.2011.20.4.036
  6. K. W. Kim, E. H. Lee, I. K. Choi, J. H. Yoo, and H. S. Park, A study on electrochemical redox behavior of nitric acid by using a glassy carbon fiber column electrode system, Journal of the Korean Institute of Chemical Engineers, 38(2), 149 (2000).
  7. S. H. Kim, S. Y. Mun, and S. G. Park, Improvement of metal-plating waste treatment, Environmental Research Institute, 22, 23 (1999).
  8. S. I. Kim, A study on removal characteristic of ammonia nitrogen and behavior of nitrogen in synthetic wastewater using Leclercia adecarboxylata, Seoul National University Master of Science Dissertation, (2004).
  9. H. H. Lee and C. G. Phae, Removal characteristic of ammonia nitrogen and behavior of nitrogen in synthetic wastewater using leclercia adecarboxylata, Journal of Korean Society of Environmental Engineers, 29(4), 460 (2007).
  10. Marcelo G, Rafael Marinho Soares, Renata Rodrigues de Moura, and Vinicius de Freitas Granjao, Sulfamic acid: An efficient acid catalyst for esterification of FFA, M.G. Montes D'Oca et al., 97, 884 (2012). https://doi.org/10.1016/j.fuel.2012.02.038
  11. S. J. Park and S. H. Lee, A study on the biological treatment of acid pickling wastewater containing a high concentration of nitrate nitrogen, Journal of Korean Society on Water Environment, 31(3), 253 (2015). https://doi.org/10.15681/KSWE.2015.31.3.253
  12. S. Y. Min, S. M. Lee, Y. G. Chae, Sanjeev Maken, T. H. Kwak, J. W. Park, and J. H. Jang, A study on the denitrification of high strength industrial wastewater with zinc scrap and sulfamic acid, Journal of Korean Society of Environmental Engineers, 37, 958 (2005).
  13. J. H. Jun, Nitrate removal using zero-valent iron and zeolite, Inje University Master of Science Dissertation, (2016).
  14. Y. J. Lee, Nitrate removal by electrolysis method, Chonnam National University Master of Science Dissertation, (2010).
  15. Y. K. Yun, Y. J. Park, S. H. Oh, W. S. Shin, S. J. Choi, and S. K. Ryu, Removal of nitrate-nitrogen in pickling acid wastewater from stainless steel industry using electrodialysis and ion exchange resin, Journal of the Environmental Sciences, 18(6), 645 (2009). https://doi.org/10.5322/JES.2009.18.6.645
  16. K. Y. Kim, D. G. Kim, K. Y. Park, Y. J. Kim, and H. J. Kim, Electrochemical denitrification of nitrate on various current density, Journal of Korean Society of Water&Wastewater, 27, 289 (2015).
  17. C. C. Kim, Removal of ammonium and nitrate nitrogens from wastewater using zeolite, Journal of the Korean Organic Recycling Association, 24(1), 59 (2016).
  18. B. U. Bae, Application of ion exchange process for removing nitrate from groundwater, Journal of the Institute of Industrial Technology, 11(2), 149 (2000).
  19. D. Y. Shin, H. S. Moon, J. Y. Kim ,and K. P. Nam, Microbial adaptation in a nitrate removal column reactor using sulfur- based autotrophic denitrification, Journal of Korean Society of Soil and Groundwater Environment, 11(2), 38 (2006).
  20. Shiota. K, Matsunaga. H, and Miyake. A, Effects of amino acids on solid-state phase transition of ammonium nitrate, Journal of Thermal Analysis and Calorimetry, 127(1), 851 (2017). https://doi.org/10.1007/s10973-016-5416-8
  21. S. J. Lee, J. H. Kim, and J. Y. Song, A study on the treatment of heavy metal in wastewater by redox reaction of Cu-Zn metal alloy and adsorption of Al-silicate. J. of Korean Oil Chemistry Soc., 33(3) 441, (2016). https://doi.org/10.12925/jkocs.2016.33.3.441