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IMPROVEMENT OF ANAEROBIC DIGESTION RATE OF BIOSOLIDS IN WASTE ACTIVATED SLUDGE(WAS) BY ULTRASONIC PRETREATMENT
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  • Journal title : Environmental Engineering Research
  • Volume 11, Issue 3,  2006, pp.143-148
  • Publisher : Korean Society of Environmental Engineering
  • DOI : 10.4491/eer.2006.11.3.143
 Title & Authors
IMPROVEMENT OF ANAEROBIC DIGESTION RATE OF BIOSOLIDS IN WASTE ACTIVATED SLUDGE(WAS) BY ULTRASONIC PRETREATMENT
Oh, Sae-Eun;
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 Abstract
The ultrasonics is a new technology in waste activated sludge(WAS) treatment. Ultrasonic treatment is well known method for the break up of microbial cells to extract out a variety of intercellular materials inside microorganism cell. This study was done to investigate the effects of the ultrasonic frequency and power on disruption of biosolids in WAS and to examine the effect on methane production of WAS treated by ultrasonics. Biosolids disruption with ultrasound is more effective at ultrasonic frequency of 40 kHz and power of 0.3 watt/mL. In the digestion with WAS pretreated by sonication time for 10 minute at 40 kHz and 0.3 watt/mL, the total quantity of generated methane increased by 75%, as compared with experimental control(non-treatment).
 Keywords
Waste activated sludge;Ultrasonic treatment;Anaerobic digestion;Sludge disruption;Biogas;
 Language
English
 Cited by
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Effect of Temperature-increase Rate and Terminal Temperature on the Solubilization of Sewage Sludge using Microwave Irradiation,;;;

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Electrokinetic Separation of Heavy Metals from Wastewater Treatment Sludge, Separation Science and Technology, 2010, 45, 12-13, 1982  crossref(new windwow)
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Leaching of polycyclic aromatic hydrocarbons (PAHs) from industrial wastewater sludge by ultrasonic treatment, Ultrasonics Sonochemistry, 2016, 33, 61  crossref(new windwow)
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