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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Using a developed mathematical model and calibrated kinetic constants, numerical experiments for a aerobic digestion of wastewater sludge by SBR aerobic digestion process combined with ultrasonication (USSBR) were performed in this study. It simulated well the phenomena of the decomposition of particulate organics and the release of organic nitrogen and transformation. To achieve 40 % of particulate organics removal, USSBR process requires only 6 days of SRT and 14 W/L of ultrasonic power whereas SBR aerobic digestion process requires 12 days of SRT. Based on the model simulation results, an empirical equation was presented here. This equation will be used to predict digestion efficiency for the given variables of SRT and ultrasonic power dose. USSBR aerobic digestion process can reduce the nitrogen concentration. The optimal operation strategy for the simultaneous removal of solids and soluble nitrogen in this process is estimated to 7 days of SRT with 14 W/L of ultrasonic power dose while anoxic period was 6 hours out of 24 hours of cycle time. In this condition, 40 % of particulate organics as well as 36 % of total nitrogen will be removed and the soluble nitrogen concentration of the centrate will be lower less then 40 mg/L.
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참고문헌 (9)
참고문헌 신청
Bougrier C. / 2006 / Effect of ultrasonic, thermal and ozone pre-treatments on waste activated sludge solubilisation and anaerobic biodegradability / Chemical Engineering and Processing 45:711~718
Chang T. C. / 2011 / Ultrasound pre-treatment step for performance enhancement in an aerobic sludge digestion process / J. Taiwan Inst. Chem. Eng. 42:801~808
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
Jin Y. / 2010 / Combined alkaline and ultrasonic pretreatment of sludge before aerobic digestion / J. Environ. Sciences 21:279~284
김성홍 / 2013 / 초음파 결합형 SBR 호기성 소화의 모델과 매개변수의 보정 / 상하수도학회지 27(4):457~468
Chang T. C. / 2011 / Ultrasound pre-treatment step for performance enhancement in an aerobic sludge digestion process / J. Taiwan Inst. Chem. Eng. 42:801~808
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
Jin Y. / 2010 / Combined alkaline and ultrasonic pretreatment of sludge before aerobic digestion / J. Environ. Sciences 21:279~284
김성홍 / 2013 / 초음파 결합형 SBR 호기성 소화의 모델과 매개변수의 보정 / 상하수도학회지 27(4):457~468
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