McSwain et al. (2004b) developed an operating strategy to enhance aerobic granulation by intermittent feeding, i.e. different filling times were applied to SBR reactors, resulting in different degrees of feast-famine period for the microorganisms. It was found that a high feast-famine ratio or pulse feeding to the SBR was favorable for the formation of compact and dense aerobic granules, i.e. the feeding strategy may influence the characteristics of aerobic granules formed in a SBR, but it is unlikely to play a role as the trigger for aerobic granulation.
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