한국습지학회지 (Journal of Wetlands Research)

  • 제19권4호
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  • Pages.508-514
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  • 2017
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  • 1229-6031(pISSN)
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  • 2384-0056(eISSN)
한국습지학회 (Korean Wetlands Society)
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MLSS와 미세조류가 광합성 산소기반 질산화에 미치는 영향

Effect of MLSS and Micro-algae on Nitrification based Photosynthetic Oxygen

  • 이지원 (서울과학기술대학교 건설시스템공학과) ;
  • 길경익 (서울과학기술대학교 건설시스템공학과)
  • Lee, Jiwon (Department of Civil Engineering, Seoul National University of Science and Technology) ;
  • Gil, Kyungik (Department of Civil Engineering, Seoul National University of Science and Technology)
  • 투고 : 2017.03.22
  • 심사 : 2017.11.10
  • 발행 : 2017.11.30
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초록

부영양화로 인한 녹 적조류가 과잉 번식하여 다양한 환경문제를 야기해왔으나, 최근 조류를 에너지원으로 활용할 수 있는 바이오 디젤 연구가 활발하게 진행되고 있다. 특히 하수처리장의 산소공급을 위한 송풍에너지 절약을 위해 미세조류의 광합성 작용으로 발생하는 산소를 하수처리장에 적용시키는 연구도 다양하게 이루어지고 있다. 본 연구에서는 조류광합성 산소를 질산화에 필요한 산소로 활용하고자 실험실 규모의 조류-질산화 반응조를 운영하였으며, 운전구간은 크게 3구간으로 운전하였다. MLSS(Mixed Liquer Suspended Solid) 농도에 변화를 준 구간에서 24~38 %, Micro-algae 농도에 변화를 준 구간에서는 38~50%, 그리고 HRT(Hydraulic Retention Time)에 변화를 준 구간에서 61~80%의 암모니아성 질소 제거율이 나타났다. 연구결과 MLSS 가 감소함에 따라, Algae Biomass가 증가함에 따라 암모니아성 질소 제거율이 증가하는 경향을 보였으나, MLSS에 의한 영향보다 Algae biomass 에 의한 영향이 더 큰 것으로 나타났다.

Water-bloom and red tide due to eutrophication have been overgrown and have caused various environmental problems. Recently, however, research on bid-diesel that can utilize algae as an energy source has been actively carried out. In particular, many studies variously have been conducted to utilize algal photosynthesis oxygen as a supply method for reducing the energy by an air blower in MWTP. In this study, a lab scale algae-nitrification reactor was operated to replace the oxygen required for nitrogen removal and the operation period was largely divided into three sections. In the first section, ammonia nitrogen removal efficiency was 24 ~ 38% according to the MLSS (Mixed Liquer Suspended Solid) concentration. In the second section, ammonia nitrogen removal efficiency was 38 ~ 50% according to the micro-algae concentration and in the last section ammonia nitrogen removal efficiency was 61 ~ 80% according to HRT (Hydraulic Retention Time). As a result, as the MLSS decreased and algae biomass increased, the ammonia nitrogen removal efficiency tended to increase, but the effect of Algae biomass was greater than that of MLSS.

키워드

참고문헌

  1. American Public Health Association(2012). Standard Methods for The Examination of Water and Waste Water, American Public Health Association, Washington, DC
  2. Cho, YC, Jin SJ, Choi, HJ, Ryu, MH, Yoo, SH(2016). Estimation of the aesthetic and environmental costs of algal bloom, J. of Environmental Policy and Administration, 24(4), pp. 227-246. [Korean Literature] https://doi.org/10.15301/jepa.2016.24.4.227
  3. Choi, HJ, Lee, SM(2014). Effect of N/P Ratio on the Biomass Productivity and Nutrient Removal in the Wastewater using Botryococcus braunii, Korean Society of Environment Engineers, 36(9), pp. 609-613. [Korea literature] https://doi.org/10.4491/KSEE.2014.36.9.609
  4. Gonzalez-Gil, G, Sougrat, R, Behzad, AR, Piet NL, Lens and Pascal ES(2015). Community Composition and Ultrastructure of Granules from a Full-Scale Anammox Reactor, Microbial Ecology, 70(1), pp. 118-131. https://doi.org/10.1007/s00248-014-0546-7
  5. Gutzeit, G, Lorch, D, Weber, A, Engels, M, Neis, U(2005). Bioflocculent algal-bacterial biomass improves low-cost wastewater treatment, Water Science & Technology, 52(12), pp. 9-18.
  6. Husam A. Abu Hajar, R, Guy Riefler, Ben J. Stuart(2016). Anaerobic digestate as a nutrient medium for the growth of the green microalga Neochloris oleoabundans, Environmental Engineering Research, 21(3), pp. 265-275. https://doi.org/10.4491/eer.2016.005
  7. Im, JY and Gil, KI(2015). Effects of the influent ammonium nitrogen concentration on nitrite accumulation in a biological nitritation process, Environmental Earth Sciences, 73(8), pp. 4399-4404. https://doi.org/10.1007/s12665-014-3724-5
  8. Kang, ZO, Kim, BH, Shin, SY, Oh, HM, Kim, HS(2012). Municipal Wastewater Treatment and Microbial Diversity Analysis of Microalgal Mini Raceway Open Pond, Korean J. of Microbiology, 48(3), pp. 192-199. [Korea literature] https://doi.org/10.7845/kjm.2012.036
  9. Kang, DH(2016). Advanced wastewater treatment by microalgae-bacteria consortium, Ph.D Dissertation, Myongji University, Yongin, Korea
  10. Kwon, HK, Oh, SJ, Yang, HS, Yu, YM(2011). Effects of temperature and Salinity on the Growth of Marine Benthic Microalgae for Phytoremediation, The Korean Society for Marine Environment & Energy, 14(2), pp. 130-137. https://doi.org/10.7846/JKOSMEE.2011.14.2.130
  11. Keiko OK, Kazuhiro F, Yoshikatsu K, Kenji K(2006). Effect of blue-light PPFD percentage in Red and Blue LED low-light irradiation during storage on the contents of chlorophyll and rubisco in Grafted tomato plug seedings, 44(4), pp. 309-314. https://doi.org/10.2525/ecb.44.309
  12. Kim, DG, Choi, YE(2014). Microalgae cultivation using LED light, Korean Chemical Engineering Research, 52(1), pp. 8-16. https://doi.org/10.9713/kcer.2014.52.1.8
  13. Kim, DH, Kim, SM, Oh, YG, Park, CH(2013). A study on optimal treatment conditions and operational characteristics of nutrient removal using microalgae, J. of Korea Society of Urban Environment, 13(1), pp. 43-50. [Korean Literature]
  14. Kim, JH., Yoon, CM, Jung, SH(2016). On-off Control for Continuous Culture of Microalgae in Flat Panel Photobioreactor, Korea Society of Manufacturing Technology Engineers, 25(3), pp. 237-243. [Korea literature] https://doi.org/10.7735/ksmte.2016.25.3.237
  15. Lee, JH. and Park, JH.(2011). Characterization of Algal-Bacterial Ecological Interaction and Nutrients Removal Under Municipal Wastewater Condition, Korean Society of Environment Engineers, 33(5), pp. 314-324. [Korea literature] https://doi.org/10.4491/KSEE.2011.33.5.314
  16. Lee, CS, Lee, SA, Ko, SR, Oh, HM, Ahn, CY(2015). Effects of photoperiod on nutrient removal, biomass production, and algal-bacterial population dynamics in lab-scale photobioreactors treating municipal wastewater, Water research, 68, pp. 680-691. https://doi.org/10.1016/j.watres.2014.10.029
  17. Posadas, E., Bochon, S., Coca, M., Garcia-Gonzalez, M. C., Garcia-Encina, P. A., & Munoz, R.(2014). Microalgaebased argo-industrial wastewater treatment: a preliminary screening of biodegradability, J. of Applied Phycology, 26(6), pp. 2335-2345. https://doi.org/10.1007/s10811-014-0263-0
  18. Posadas, E., Munoz. A., Gonzalez. M., Munoz. R., Garcia-Encina P.(2014). A case study of a pilot high efficiency algal pond for the treatment of fish farm and domestic wastewaters, J. of Chemical Technology and Biotechnology, 24(6), pp. 2345-2355.
  19. Ras, M., Steyer, JP., Bernard, O.(2013). Temperature effect on microalgae: a crucial factor for outdoor production, Reviews in environmental science and biotechnology, 12(2), pp. 153-164. https://doi.org/10.1007/s11157-013-9310-6
  20. Raul M, Benoit G(2006). Algal-bacterial processes for the treatment of hazardous contaminants: A review, Water research, 40, pp. 2799-2815. https://doi.org/10.1016/j.watres.2006.06.011
  21. Wang, M., Yang, H., Ergas, S. J. and van der Steen, P.(2010). A novel shortcut nitrogen removal process using an algal-bacterial consortium in a photo-sequencing batch reactor(PSBR), Water research, 87, pp. 38-48.
  22. Wishkerman, A, Wishkerman, E(2017). Application note: A novel low-cost open-source LED system for microalgae cultivation, Computers and electronics in agriculture, 132, pp. 56-62. https://doi.org/10.1016/j.compag.2016.11.015
  23. Zhang, W, Zhao, Y, Cui, B, Wang, H, Liu, T(2016). Evaluation of filamentous green algae as feedstocks for biofuel production, Bioresource Technology, 220, pp. 407-413. https://doi.org/10.1016/j.biortech.2016.08.106