Title of article
Upgrading of anaerobic digestion of waste activated sludge by ultrasonic pretreatment
Author/Authors
Qunhui Wang، نويسنده , , Masaaki Kuninobu، نويسنده , , Kohji Kakimoto، نويسنده , , Hiroaki I.-Ogawa، نويسنده , , Yasuhiko Kato، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1999
Pages
5
From page
309
To page
313
Abstract
To enhance the efficiency of anaerobic digestion, we examined the effects of ultrasonic pretreatment on the solubilization of waste activated sludge (WAS) and on methane generation. Organic substances in WAS were solubilized by ultrasonic pretreatment. In the digestion with WAS pretreated by ultrasonic pretreatment for 30 min, the total quantity of generated methane increased by 64%, as compared with experimental control (non-treatment). In addition, the relationships between methane generation and concentrations of soluble protein, carbohydrate and volatile fatty acid (VFA) were also examined.
Keywords
Methane generation , Anaerobic digestion , solubilization , Ultrasonic pretreatment , Volatile fatty acid , Waste activated sludge
Journal title
Bioresource Technology
Serial Year
1999
Journal title
Bioresource Technology
Record number
410600
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