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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The impacts of ultrasonic pretreatment on the biodegradability of domestic sewage sludge were evaluated through a series of anaerobic digestion experiments in batch system. The gas and methane production from the sludge samples pretreated by an ultrasonic tool with different durations were measured with time. Although the biogas production increased with the extent of sludge solubilization and the period of ultrasonic pretreatment, the enhancement of sludge biodegradability was much more sensitive to the pretreatment for the relatively short periods. Most of the enhanced biodegradability by the pretreatment was appeared in the early stage of anaerobic digestion, less than 6 days. The maximum biogas production per day was observed between 4 to 6 days when the sludge was pretreated less than 10 minutes while it was obtained in the beginning for the sludge pretreated longer periods. The results suggest that the repeated alternation of low strength ultrasonic pretreatment and anaerobic digestion may be more effective than the combination of one time pretreatment for a relatively long period and following anaerobic digestion.
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참고문헌 (8)
참고문헌 신청
Beril Akin / 2006 / Ultrasound pre-treatment of waste activated sludge / Water Science & Technology and Water Supply 6(6):35~42
C. Bougrier / 2005 / Solubilisation of waste-activated sludge by ultrasonic treatment / Chemical Engineering Journal 106:163~169
C. Bougrier a / 2006 / Effect of ultrasonic, thermal and ozone pre-treatments on waste activated sludge solubilisation and anaerobic biodegradability / Chemical Engineering and Processing 45:711~718
Feng, x. / 2008 / Physical and chemical characteristics of waste activated sludge treated ultrasonically / Chemical Eng. & Proc
Muller J / 2000 / Disintegration as a key-step in sewage sludge treatment / Wat. Sci. Tech 41(8):123~130
C. Bougrier / 2005 / Solubilisation of waste-activated sludge by ultrasonic treatment / Chemical Engineering Journal 106:163~169
C. Bougrier a / 2006 / Effect of ultrasonic, thermal and ozone pre-treatments on waste activated sludge solubilisation and anaerobic biodegradability / Chemical Engineering and Processing 45:711~718
Feng, x. / 2008 / Physical and chemical characteristics of waste activated sludge treated ultrasonically / Chemical Eng. & Proc
Muller J / 2000 / Disintegration as a key-step in sewage sludge treatment / Wat. Sci. Tech 41(8):123~130
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