지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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Based on the activated sludge model(ASM), a mathematical model which represents the aerobic sludge digestion by sequencing batch reactor(SBR) combined with ultrasonic treatment was composed and performed in this study. Aerobic digestion using sequencing batch reactor(SBR) equipped with ultrasound treatment was also experimented for the purpose of parameter calibration. Most of the presented kinetic parameters in ASM or ASM2 could be used for the aerobic digestion of sludge but the parameters related in hydrolysis and decay rate needed modification. Hydrolysis rate constant of organic matter in aerobic condition was estimated at $0.3day^{-1}$ and the maximum growth rate for autotrophs in aerobic condition was $0.618day^{-1}$. Solubilization reactions of particulate organics and nitrogen by ultrasonication was added in this kinetic model. The solubilization rate is considered to be proportional to the specific energy which is defined by specific ultrasound power and sonication time. The solubilization rate constant by ultrasonication was estimated at $0.202(W/L)^{-1}day^{-1}$ in this study. Autotrophs as well as heterotrophs also decomposed by ultrasonic treatment and the nitrification reaction was limited by the lack of autotrophs accumulation in the digester.
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참고문헌 (13)
참고문헌 신청
Bhargava D.S. / 1988 / Progress and kinetics of aerobic digestion of secondary sludges / Water Research 22(1):37~47
Bougrier C. / 1995 / Solubilisation of waste-activated sludge by ultrasonic treatment / Chemical Engineering Journal 106:163~169
Gujer W. / 1991 / Activated sludge modelling and simulation / Wat. Sci. Tech. 23:1011~1023
Gujer W. / 1995 / The activated sludge model no. 2:biological phosphorus removal / Wat. Sci. Tech. 31(2):1~11
Henze M. / 2007 / Activated sludge models ASM1, ASM2, ASM2d and ASM3, In IWA task group on mathematical modelling for design and operation of biological wastewater treatment / IWA publishing
Bougrier C. / 1995 / Solubilisation of waste-activated sludge by ultrasonic treatment / Chemical Engineering Journal 106:163~169
Gujer W. / 1991 / Activated sludge modelling and simulation / Wat. Sci. Tech. 23:1011~1023
Gujer W. / 1995 / The activated sludge model no. 2:biological phosphorus removal / Wat. Sci. Tech. 31(2):1~11
Henze M. / 2007 / Activated sludge models ASM1, ASM2, ASM2d and ASM3, In IWA task group on mathematical modelling for design and operation of biological wastewater treatment / IWA publishing
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