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KMID : 0380020100250010067
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Korean Journal of Biotechnology and Bioengineering
2010 Volume.25 No. 1 p.67 ~ p.72
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Relationship of Optical Density and Wavelength on Light Source for Activated Sludge Concentration
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Kim Do-Han
Lee Chang-Han
Wang Bo-Kwon
Suh Jung-Ho
Song Seung-Koo
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Abstract
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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.
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KEYWORD
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detector, activated sludge, wavelength, optical density, Beer’s law
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