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방사선과 폐수산자원을 이용한 하수 농축슬러지 처리에 관한 연구
유대현,이재광,이면주,강호,Yoo Dae-Hyun,Lee Jae-Kwang,Lee Myun-Joo,Kang Ho 한국자원리싸이클링학회 2004 資源 리싸이클링 Vol.13 No.4
본 연구는 하수처리장에서 발생되는 농축슬러지의 처리방법에 대해 진행하였다. 방사선을 15 kGy 조사하였을 때 농축슬러지에 존재하는 일반세균 및 대장균을 99% 이상 제거, 유기물 분해등 소화조에서 일어나는 공정을 대체 할 수 있다. 폐수산자원인 불가사리를 가공하여 제조한 물리개량제를 첨가하여 응집공정의 효율을 높이고 아울러 함수율 10% 이상의 저감효과를 얻을 수 있다. This study was focused on the treatment of thickened sewage sludge. General bacteria and E. coli were disinfected over 99% and organic compounds were decomposed after irradiation. It was suggested that this process can be an alternative for digestion Process. The moisture content in sludge was decreased over 10% (w/w) and the coagulation of sludge particles was enhanced by irradiation at the dose of 15 kGy and addition of sea waste resource (star-fish) as a dewatering aid.
UV-C, VUV, Ozone 및 Gamma ray에 의한 병원성 미생물의 불활성화
이오미 ( O Mi Lee ),김해연 ( Hae Yeon Kim ),김태훈 ( Tae Hun Kim ),이면주 ( Myun Joo Lee ),유승호 ( Seung Ho Yu ) 한국공업화학회 2009 응용화학 Vol.13 No.1
Batch kinetic experiments were conducted to evaluate the disinfection efficiencies of the microorganisms by UV-C, VUV, ozone and gamma radiation. The disinfection efficiency of S. choleraesuis after UV-C irradiation was 99.06% at 5 min exposure. The disinfection efficiency of E. coli K12 after VUV irradiation was 98.88% at 3 min. The ozone disinfection efficiency was 57.81% at 1 min for S. aureus. The effect of the electron beam irradiation was 99.70% at 2kGy for B. subtilis spores. The results of SEM and TEM indicated that gamma radiation showed more complete destruction of the wall of the microorganisms than other AOPs.