N

Solids Concentration

FIG. 7.29.2 Definition sketch of the solids flux analysis technique.

Solids Concentration

FIG. 7.29.2 Definition sketch of the solids flux analysis technique.

Applying the technique of solid flux analysis (Dick and Ewing 1967; Dick and Young 1972; Dick 1976) determines the minimum surface area required for thickening in the secondary clarifier AT. Figure 7.29.1 is a schematic representation of a secondary clarifier operated under steady-state conditions. The mass flux of biological solids due to gravity settling NG is calculated as follows:

Interface

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