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Article: Estimation of Autotrophic Maximum Specific Growth Rate Constant-Experience from the Long-Term Operation of a Laboratory-Scale Sequencing Batch Reactor System
- Article from:
- Water Environment Research
- Article date:
- April 1, 2008
- Author:
CopyrightCopyright Water Environment Federation Apr 2008. Provided by ProQuest LLC. (Hide copyright information)
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ABSTRACT:
The autotrophic maximum specific growth rate constant, µ^sub A,max^, is the critical parameter for design and performance of nitrifying activated sludge systems. In literature reviews (i.e., Henze et al., 1987; Metcalf and Eddy, 1991), a wide range of µ^sub A,max^ values have been reported (0.25 to 3.0 days^sup -1^); however, recent data from several wastewater treatment plants across North America revealed that the estimated µ^sub A,max^ values remained in the narrow range 0.85 to 1.05 days^sup -1^. In this study, long-term operation of a laboratory-scale sequencing batch reactor system was investigated for estimating this coefficient according to the low food-to-microorganism ...