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지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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This study was conducted to reduce excess sludge generation by recycling of return sludge to the aeration tank after solubilization by electric field charger and ultrasonifier. The return sludge was purposely broken-up to the ratio of $SCOD_{Cr}/TCOD_{Cr}$ at 0.1, 0.2, and 0.3, which was tested along with control (i.e., untreated). Solubilized sludge was subsequently treated in a bench-scaled conventional activated sludge reactor. According to varying $SCOD_{Cr}/TCOD_{Cr}$ ratios, TSS in the reactor was correspondingly increased from 129 to 219 mg/L and $TCOD_{Cr}$ was also from 257 to 335 mg/L. However, TSS in the effluent was nevertheless kept lower at below 30 mg/L and $TCOD_{Cr}$ was also unvaryingly below 40 mg/L. For $SCOD_{Cr}/TCOD_{Cr}$ = 0.3, the amount of excess sludge produced was at the highest decreased up to as high as 78%.
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참고문헌 (34)
참고문헌 신청
APHA / 1998 / Standard Methods for the Examination of Water and Wastewater, (20th ed.) / American Public Health Association
Brooks, R. B. / 1970 / Heat Treatment of Sewage Sludge / Water Pollution Control 69(2):221~231
Canales, A. P. / 1994 / Decreased Sludge Production Strategy for Domestic Wastewater Treatment / Water Science and Technology 30(8):97~106
Chang, T. C. / 2011 / Ultrasound Pre-treatment Step for Performance Enhancement in an Aerobic Sludge Digestion Process / Journal of Taiwan Institute of Chemical Engineers 42(5):801~808
Cheng, C. J. / 2012 / Improved Solubilization of Activated Sludge by Ozonation in Pressure Cycles / Chemosphere 87(6):637~643
Brooks, R. B. / 1970 / Heat Treatment of Sewage Sludge / Water Pollution Control 69(2):221~231
Canales, A. P. / 1994 / Decreased Sludge Production Strategy for Domestic Wastewater Treatment / Water Science and Technology 30(8):97~106
Chang, T. C. / 2011 / Ultrasound Pre-treatment Step for Performance Enhancement in an Aerobic Sludge Digestion Process / Journal of Taiwan Institute of Chemical Engineers 42(5):801~808
Cheng, C. J. / 2012 / Improved Solubilization of Activated Sludge by Ozonation in Pressure Cycles / Chemosphere 87(6):637~643
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