DOI QR코드

DOI QR Code

3D 복극충진전기분해를 이용한 원전 ETA에 의해 유발된 폐수 내 COD 및 T-N 제거

Removal of COD and T-N caused by ETA from Nuclear Power Plant Wastewater using 3D Packed Bed Bipolar Electrode System

  • 김한기 (한양대학교 건설환경공학과) ;
  • 정주영 (한양대학교 건설환경공학과) ;
  • 신자원 (한양대학교 건설환경공학과) ;
  • 박주양 (한양대학교 건설환경공학과)
  • 발행 : 2012.06.15

초록

Ethanolamine (ETA) is mainly used to prevent corrosion of pipe in secondary cooling system of nuclear power plant. Condensed ETA in wastewater could increase COD and T-N when it was emitted to natural water system. Compared to conventional treatments, electrochemical oxidation process using packed bed bipolar electrodes was adopted to treat COD and T-N. According to arrangement of feeder electrode, single packed bed bipolar electrode reactor and multi-paired packed bed bipolar reactor were developed and conventional zero-valent iron (ZVI) was selected as conducting bipolar electrode. Bipolar electrodes were coordinated three-dimensionally in the reactor. The experimental results showed that COD and T-N was little removed in unit system at different pH condition (pH 8 and 11) on 100V. However, in multi-paired system that applied 600V, COD was eliminated 80.85% (anode-cathode-anode, A-C-A) and 85.11% (cathode-anode-cathode, C-A-C), respectively. T-N was also removed 96.88% (A-C-A) and 90.63% (C-A-C), simultaneously. Current efficiency was estimated both single and multi-paired system. At unit bipolar packed bed reactor, current efficiency was almost zero, however in multi-paired system, current efficiency was 300~500% at A-C-A and 250~350% at C-A-C. Current efficiency was over 100% hence it was confirmed that this system is more effective than conventional electrochemical oxidation system.

키워드

참고문헌

  1. 현준택 (2007), 생물학적 방법에 의한 Monoethanolamine의 분해 연구, Korean J. Biotechnol. Bioeng., 22(3), 157-161.
  2. Adenier, A., Chehimi, M. M., Gallardo, I., Pinson, J. and Vila, N. (2004), Electrochemical Oxidation of Aliphatic Amines and Their Attachment to Carbon and Metal Surfaces, Langmuir, 20(19), 8243-8253. https://doi.org/10.1021/la049194c
  3. Awang , Z. B., Bashir, M. J. K., Kutty, S. R. M. and Isa, M. H. (2011), Post-treatment of salughterhouse wastewater using electrochemical oxidation, Research Journal of Chemistry and Environment, 15(2), 229-237.
  4. Bothej u, D., Li, Y., Hovland, J., Haugen, H. A. and Bakke, R. (2011), Biological treatment of amine wastes generated in post combustion CO2 capture, Energy Procedia, 4(0), 496-503. https://doi.org/10.1016/j.egypro.2011.01.080
  5. Cattant , F., Crusset, D. and Feron, D. (2008), Corrosion issues in nuclear industry today, Materials Today, 11(10), 32-37. https://doi.org/10.1016/S1369-7021(08)70205-0
  6. Chiang, L.-C., Chang, J.-E. and Wen, T.-C. (1995), Indirect oxidation effect in electrochemical oxidation treatment of landfill leachate, Water Research, 29(2), 671-678. https://doi.org/10.1016/0043-1354(94)00146-X
  7. Donten, M., Hyk, W., Ciszkowska, M. and Stojek, Z. (1997), Electrooxidation of ammonia and simple amines at titanium electrodes modified with a mixture of ruthenium and titanium dioxides, Electroanalysis, 9(10), 751-754. https://doi.org/10.1002/elan.1140091004
  8. Duvall, S. H. and Mccreery, R. L. (1999), Control of Catechol and Hydroquinone Electron-Transfer Kinetics on Native and Modified Glassy Carbon Electrodes, Analytical Chemistry, 71(20), 4594-4602. https://doi.org/10.1021/ac990399d
  9. Ge, J., Qu, J., Lei, P. and Liu, H. (2004), New bipolar electrocoagulation-electroflotation process for the treatment of laundry wastewater, Separation and Purification Technology, 36(1), 33-39. https://doi.org/10.1016/S1383-5866(03)00150-3
  10. Gherard ini, L., Michaud, P. A., Panizza, M., Comninellis, C. and Vatistas, N. (2001), Electrochemical Oxidation of 4-Chlorophenol for Wastewater Treatment: Definition of Normalized Current Efficiency (phi), Journal of The Electrochemical Society, 148(6), D78-D82. https://doi.org/10.1149/1.1368105
  11. Goodrid ge, F., King, C. J. H. and Wright, A. R. (1977), The behaviour of bipolar packed-bed electrodes, Electrochimica Acta, 22(4), 347-352. https://doi.org/10.1016/0013-4686(77)85085-8
  12. Guvenc, A. and Karabacakoglu, B. (2001), Study of the Effect of Number of Layers on the Electrosynthesis of Cobalt(III) Acetate in a Bipolar Packed-Bed Flow Reactor, Turkish Journal of Chemistry, 25(4), 461-468.
  13. Harimurti, S., Dutta, B., Ariff, I., Chakrabarti, S. and Vione, D. (2010), Degradation of Monoethanolamine in Aqueous Solution by Fenton's Reagent with Biological Post-treatment, Water, Air, & Soil Pollution, 211(1), 273-286. https://doi.org/10.1007/s11270-009-0298-z
  14. Kodym, R., Bouzek, K., Snita, D. and Thonstad, J. (2007), Potential and current density distributions along a bipolar electrode, Journal of Applied Electrochemistry, 37(11), 1303-1312. https://doi.org/10.1007/s10800-007-9410-5
  15. Kusakabe , K., Morooka, S. and Kato, Y. (1982), Current paths and electrolysis efficiency in bipolar packed-bed electrodes, Journal of chemical engineering of Japan, 15(1), 45-50. https://doi.org/10.1252/jcej.15.45
  16. Lin, S. H ., Shyu, C. T. and Sun, M. C. (1998), Saline wastewater treatment by electrochemical method, Water Research, 32(4), 1059-1066. https://doi.org/10.1016/S0043-1354(97)00327-8
  17. Nordman n, F. (2004). Aspects on chemistry in French nuclear power plants. International Conference on the Properties of Water and Steam. Kyoto, Japan
  18. Raught, D. P., Foutch, G. L. and Apblett, A. (2005), Ion exchange resin fouling by organic amines in secondary systems at U.S. nuclear power plants, Power Plant Chemistry, 7(12), 741-747.
  19. Rhee, I. - H., Ahn, H.-K. and Jung, H.-J. (2007). Effect of pH and Temperature on Condensation and dissolution. International Conference on Signal Processing, Robotics and Automation, Corfu Island, Greece, WSEAS.
  20. Sakakibar a, Y. and Nakayama, T. (2001), A novel multi-electrode system for electrolytic and biological water treatments:: electric charge transfer and application to denitrification, Water Research, 35(3), 768-778. https://doi.org/10.1016/S0043-1354(00)00327-4
  21. Saracco, G., Solarino, L., Aigotti, R., Specchia, V. and Maja, M. (2000), Electrochemical oxidation of organic pollutants at low electrolyte concentrations, Electrochimica Acta, 46(2-3), 373-380. https://doi.org/10.1016/S0013-4686(00)00594-6
  22. Van Hege , K., Verhaege, M. and Verstraete, W. (2004), Electro-oxidative abatement of low-salinity reverse osmosis membrane concentrates, Water Research, 38(6), 1550-1558. https://doi.org/10.1016/j.watres.2003.12.023
  23. Wang, C. -T., Chou, W.-L. and Kuo, Y.-M. (2009), Removal of COD from laundry wastewater by electrocoagulation/electroflotation, Journal of Hazardous Materials, 164(1), 81-86. https://doi.org/10.1016/j.jhazmat.2008.07.122
  24. Wodiunig, S., Bokeloh, F. and Comninellis, C. (2000), Electrochemical promotion of bipolar electrodes: an estimation of the current bypass, Electrochimica Acta, 46(2-3), 357-363. https://doi.org/10.1016/S0013-4686(00)00592-2
  25. Xiong, Y. , He, C., Karlsson, H. T. and Zhu, X. (2003), Performance of three-phase three-dimensional electrode reactor for the reduction of COD in simulated wastewater-containing phenol, Chemosphere, 50(1), 131-136. https://doi.org/10.1016/S0045-6535(02)00609-4
  26. Yavuz, Y. , Koparal, A. S., X015f, Ogutveren, U. B. and X (2008), Phenol Degradation in a Bipolar Trickle Tower Reactor Using Boron-Doped Diamond Electrode, Journal of Environmental Engineering, 134(1), 24-31. https://doi.org/10.1061/(ASCE)0733-9372(2008)134:1(24)
  27. Yeon, K. -H., Song, J.-H., Shim, J., Moon, S.-H., Jeong, Y.-U. and Joo, H.-Y. (2007), Integrating electrochemical processes with electrodialysis reversal and electro-oxidation to minimize COD and T-N at wastewater treatment facilities of power plants, Desalination, 202(1-3), 400-410. https://doi.org/10.1016/j.desal.2005.12.080

피인용 문헌

  1. Effect of Cathode in Electrochemical Reaction for Treating Ballast Water vol.23, pp.6, 2014, https://doi.org/10.5322/JESI.2014.23.6.1175
  2. Enhanced removal of ethanolamine from secondary system of nuclear power plant wastewater by novel hybrid nano zero-valent iron and pressurized ozone initiated oxidation process vol.24, pp.21, 2017, https://doi.org/10.1007/s11356-017-9416-4
  3. lectrospinning Method 기반 CNF의 물성분석과 전기분해 공정에서 전극으로의 응용 vol.28, pp.2, 2017, https://doi.org/10.14478/ace.2017.1012
  4. Removal of Ethanolamine (ETA) and COD Produced in a Power Plant Wastewater by Nano-ZVI (Zerovalent Iron) and Hydrogen Peroxide (H2O2) vol.10, pp.2, 2019, https://doi.org/10.18178/ijesd.2019.10.2.1147