PROBLEM OPERATOR SOLVERS ESSENTIALS
per shift for multishift operations. A sludge blanket depth of target of .3 to .6 m (1 to 2 ft) is adequate for most treatment facilities. For best performance, a good rule-of-thumb is to maintain the blanket of 0.6 m (2 ft) or less at all times. A common operational target for RAS flow rates is to maintain flows between 50% and 150%
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