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복합미생물제제를 이용한 RCM공법의 선박오수 처리장치 적용에 관한 연구

Advanced Treatment of Shipboard Sewage by RCM Process with BM

  • Ha, Shin-Young (Graduate school of Korea Maritime and Ocean University) ;
  • Kim, In-Soo (Division of Environment Engineering, Korea Maritime and Ocean University)
  • 투고 : 2014.09.29
  • 심사 : 2014.10.20
  • 발행 : 2014.10.31

초록

본 연구에서는 유입수의 변동이 심하고 전문가가 부재한 환경인 선박에서 발생하는 오수의 효과적인 처리를 위하여 RCM공법을 선박오수처리장치에 적용하는 실험실 규모의 실험을 수행하였다. 질소 인의 고도처리 효율과 선박이라는 특수환경과의 접목성을 검토한 결과 RCM공정에 유효미생물을 주입하는 방법은 선박환경에 적합한 것으로 평가되었다. 또한 RCM공정은 활성슬러지 공정에서 배출되는 슬러지는 배출시키지 않고 슬러지액화분해조(SDC)에서 재분해하여 순환함으로써, 최근 해양투기가 금지됨으로 인해 문제가 되고 있는 슬러지의 발생량을 최소한으로 하여 친환경적인 수처리가 가능하다. 복합미생물제제 주입 후 미생물 관찰결과 고도처리에 유리한 미생물종의 출현을 확인하였으며 이들의 상호기작으로 질소 인의 처리에 도움을 주어 처리효율이 높은것이라 판단된다. 유기물 제거효율 실험결과 $BOD_5$, CODcr T-N, T-P의 처리효율이 각각 96, 97, 78, 81.68 %로 나타나 Membrane이나 Filter없이도 강화되어가는 해양오염기준을 충족시킬 수 있는 공정으로 판단된다.

Lab scale experiment was carried out to study biological wastewater treatment technology developed for shipboard. RCM process using BM(Beneficial Microorganisms) was investigated for practical application on shipboard sewage treatment. RCM process is an environmental friendly treatment system, with minimum production of sludge. In the test, BOD5, CODcr, T-N and T-P were reduced a 96%, 97%, 78% and 81.68% respectively. From the result it was suggested that RCM process with BM might be a suitable process for shipboard sewage treatment, maintenance of useful microorganisms and creating special environment as the SDC tank is circulating in the non-biodegradable organics sludge generated during the wastewater treatment, thus reducing the amount of sludge generated. Therefore, the RCM process does not require additional equipment to strengthen it to meet the marine pollution standards.

키워드

참고문헌

  1. IMO MAPOR 73/78(1973,1978), Annex, of the international convention for the prevention of pollution from ships.
  2. IMO, 2012, Resolution MEPC.227(64), Revised guidelines on implementation of effluent standards and performance tests for sewage treatment plants.
  3. Kim, I. S. et al.(2012), "Advanced Treatment of Shipboard Sewage by SBR Process with BM", Journal of Korean Navigation and Port Research, Vol. 36, No. 8, pp. 643-649. https://doi.org/10.5394/KINPR.2012.36.8.643
  4. Leonre, S. E., Aronld, E. G. and Andrew, D. E.(1998), "Standard Method for the Examination of Water and Wastewater", 20th ed., Am. Pub. Health Assoc., Washington.
  5. Lee, E. S. and Kim, I. S.(2011), "Shipboard sewage treatment by SBR process with BM", Journal of Korean Navigation and Port Research, Vol. 35, No. 10, pp. 817-822. https://doi.org/10.5394/KINPR.2011.35.10.817
  6. Shin, S, H.(2009), Biological treatment of nitrate and perchlorate in brine water with a biofilter, Chung Ang University.
  7. Ha, S, Y.(2012), Refractory wastewater treatment by Indigenous Microorganisms, Korea Maritime University
  8. Han, S, H. et al.(2010), "Ship Sewage Treatment Using Fixed Media Method", Journal of the Korean Society for Marine Environment Engineering, Vol. 13, No. 2, pp. 99-104.