Relationship of Optical Density and Wavelength on Light Source for Activated Sludge Concentration

활성슬러지 농도에 따른 광학밀도와 광원파장의 상관관계

  • Kim, Do-Han (Ulsan Regional Innovation Agency) ;
  • Lee, Chang-Han (Department of Environmental Engineering, Catholic University of Pusan) ;
  • Wang, Bo-Kwon (Miwon Commercial Co., Ltd.) ;
  • Suh, Jung-Ho (Department of Environmental Life Chemistry, Ulsan College) ;
  • Song, Seung-Koo (Department of Chemical Engineering, Pusan National University)
  • Received : 2009.11.15
  • Accepted : 2009.12.11
  • Published : 2010.02.28

Abstract

In this study, we developed a comprehensive correlation for better prediction of the activated sludge concentration in the relationship between measurement of optical density by the Beer's law and sludge properties. Effects of activated sludge properties, which are sludge types and anaerobic storage time, show that absorbance deviation for sludge properties decreased on wavelength of light source near to 950 nm. We also developed a method to measure limitation with non-linear correlation on the measurement of high concentration by the Beer's law using a double layer probe cell and empirical equations.

Keywords

References

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