Step-feed Aeration Assignment Help

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Step-feed Aeration

Step feed is a modification of the conventional plug-flow process in which the settled waste-water is introduced at several points in the aeration tank to equalize the food to micro-organism (F/M) ratio, thus lowering peak oxygen demand. Three or more parallel channels are generally used. Flexibility of operation is one of the significant features of this process. BOD removal efficiency varies between 85-95%.

 

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