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공공하수처리시설의 에너지절감 및 폐슬러지 저감에 관한 실증연구
강석환(Suk-Hwan Kang),김효식(Hyo Sik Kim),우광재(Kwang-Jae Woo),강줄기(Jul-Ki Kang),김동욱(Dong-Wook Kim),이수진(Su-Jin Lee) 한국에너지기후변화학회 2014 에너지기후변화학회지 Vol.9 No.2
An empirical study on the energy saving and waste-sludge reduction by using ultra-fine bubbles was demonstrated in a public sewage treatment plant. The test-bed of 100m3/day capacity was installed and operated with the ultra-fine bubbles of μm-size for aeration and sludge reduction tools. The rate of aeration-energy saving by using ultra-fine bubbles was 37% compared to that of conventional diffuser, and the rate of excess-sludge reduction by using the ultra-fine bubbles of air+10%O₃ was 31% for 1-day operation and was 45% for 2-day operation. We could conclude that the ultra-fine bubbles might have a powerful potential for the energy saving and sludge reduction in sewage and waste-water treatment processes.