Environmental Engineering Research

Korean Society of Environmental Engineers (대한환경공학회)
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IMPROVEMENT OF ANAEROBIC DIGESTION RATE OF BIOSOLIDS IN WASTE ACTIVATED SLUDGE(WAS) BY ULTRASONIC PRETREATMENT

  • Oh, Sae-Eun (Division of Civil. Environmental & Urban Engineering, Hanbat National University)
  • Published : 2006.06.30
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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).

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References

  1. Eastman J. A. and Ferguson J. F., 'Solubilization of particulate organic carbon during the acid phase of anaerobic digestion', JWPCF 53(3), 352-366(1981)
  2. Chiu YC, Chang CN, Lin JG, Huang SJ., 'Alkaline and ultrasonic pretreatment of sludge before anaerobic digestion', Wat. Sci. Tech. 36 (11), 155-162(1997)
  3. Qunhui W., Masaaki K., Kohji K., Hiroaki I. and Yasuhiko K., 'Upgrading of anaerobic digestion of waste activated sludge by ultrasonic pretreatment', Bioresource Technology, 68, 309-313 (1999) https://doi.org/10.1016/S0960-8524(98)00155-2
  4. Harrison S. T.L.,'Bacterial cell disruption: a key unit operation in the recovery of intracellular products', Biotechnol. Adv. 9, 217-240(1991) https://doi.org/10.1016/0734-9750(91)90005-G
  5. Portenlanger G., ' Mechanical and radical effects of ultrasound', In Ultrasound in Environmeental Engineering, 25 (1999)
  6. Mason T., 'Practical Sonochemistry: User's Guide to Applications in Chemistry and Chemical Engineering, Ellis Horword Ltd., Chichester, U.K (1998)
  7. American Public Health Association., Standard methods for the examination of water and wastewater. 16th ed., N.Y. (1987)
  8. Tiehm A., Nickel K. and Neis U.,'The use of ultrasound to accelerate the anaerobic digestion of sewage sludge', Wat. Sci. Tech., 36(11), 121-128 (1997) https://doi.org/10.1016/S0273-1223(97)00676-8
  9. Mark G., Tauber A., Laupert R., Schuchmann H.P., Schulz D., Mues A. and von Sonntag C., 'OH-radical formation by ultrasound in aqueous solution-Part II. Terephthalate and Fricke dosimetry and the influence of various conditions on the sonolytic yield', Ultrasonics Sonochem. 5, 41-52 (1998) https://doi.org/10.1016/S1350-4177(98)00012-1

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