Journal of Wetlands Research (한국습지학회지)

Korean Wetlands Society (한국습지학회)
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Industrial Wastewater Treatment Containing High Concentration of Ammonia with Low Energy Micro-Bubble Reactor

저에너지 마이크로버블 장치를 이용한 고농도 암모니아 공장 폐수 처리

  • Jung, Jae-Ouk (Department of Environmental Engineering, Catholic University of Pusan) ;
  • Jung, Yong-Jun (Department of Environmental Engineering, Catholic University of Pusan)
  • 정재억 (부산가톨릭대학교 환경공학과) ;
  • 정용준 (부산가톨릭대학교 환경공학과)
  • Received : 2016.07.29
  • Accepted : 2016.08.12
  • Published : 2016.08.31
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Abstract

This study was carried out to evaluate the feasibility of air-stripping by DIWS(Dip Injection Wet Scrubber) system on high concentration of ammonia wastewater more than 10,000 mg/L. In the case of changing temperature from $30^{\circ}C$ to $70^{\circ}C$ maintaining pH 12.5 within the 72 hours, the removal efficiency of T-N by the present treatment plant was increased to 90.5% which was initially kept 70.3%. Although the high concentration of T-N with 9,120~12,955 mg/L was treated by micro-bubble through DIWS system maintaining the temperature of $30^{\circ}C$ within the 20 hours, the removal efficiency of T-N reached 91.9%, which indicated the possibility of air-stripping.

고농도의 암모니아 함유 공장 폐수를 대상으로 마이크로버블이 발생되는 장치를 이용하여 암모니아 탈기에 의한 처리 가능성을 평가하였다. 기존 처리장은 pH를 12.5로 유지하면서 반응 조내의 온도를 $30^{\circ}C$에서 $70^{\circ}C$로 상승시켜 72시간 동안 고온 탈기 시켰을 경우 T-N의 제거효율은 70.3%에서 90.5%로 증가하였다. 온도를 $30^{\circ}C$로 유지하면서 유입수의 T-N 농도가 9,120~12,955 mg/L인 폐수를 20시간 동안 마이크로버블에 의한 지속적인 접촉으로 상온 탈기 시킨 결과 T-N 제거율을 90.5~91.9%로 확보하였으며, 운전기간 동안의 pH는 12.3에서 10.1로 소폭 감소하였다.

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References

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