Environmental Engineering Research

  • 제14권1호
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  • Pages.48-52
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  • 2009
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  • 1226-1025(pISSN)
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  • 2005-968X(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
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Effect of Temperature-increase Rate and Terminal Temperature on the Solubilization of Sewage Sludge using Microwave Irradiation

  • Park, Woon-Ji (Division of Environmental and Geosystem Engineering, College of Engineering, Kangwon National University) ;
  • Ahn, Johng-Hwa (Division of Environmental and Geosystem Engineering, College of Engineering, Kangwon National University) ;
  • Lee, Chan-Ki (Division of Environmental and Geosystem Engineering, College of Engineering, Kangwon National University)
  • 발행 : 2009.03.31
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초록

Solubilization of sewage sludge creates favorable conditions for anaerobic microorganisms to produce biogas. In this paper, we quantify the effect of heating pretreatment on the degree of solubilization of sewage sludge. The pretreatment process was carried out using a lab-scale industrial microwave unit (2450 MHz frequency). Response surface analysis was applied to determine the combination of temperature-increase rate (ramp rate) (2.9 to 17.1 ${^{\circ}C}$/min) and terminal temperature (52 to 108${^{\circ}C}$). Both ramp rate and temperature significantly affected the solubilization degree of sludge. Within the design boundaries, the conditions predicted to maximize the solubilization degree of 15.8% were determined to be 2.9 ${^{\circ}C}$/min and 104${^{\circ}C}$.

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참고문헌

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피인용 문헌

  1. Impact of Irradiation Time on the Hydrolysis of Waste Activated Sludge by the Dielectric Heating of Microwave vol.19, pp.1, 2014, https://doi.org/10.4491/eer.2014.19.1.083
  2. Comparison of Different Electricity-Based Thermal Pretreatment Methods for Enhanced Bioenergy Production from Municipal Sludge vol.23, pp.8, 2018, https://doi.org/10.3390/molecules23082006
  3. Optimization of microwave pretreatment conditions to maximize methane production and methane yield in mesophilic anaerobic sludge digestion vol.32, pp.13, 2011, https://doi.org/10.1080/09593330.2010.543929
  4. The Possibility of Hybrid-Bioreactor Heating by the Microwave Radiation vol.16, pp.1, 2009, https://doi.org/10.1515/ijcre-2016-0115