Greek Symbols

a Ow

Conversion, removal ratio Relation of specific mass transfer coefficient wastewater/clean water Separation coefficient of a settler Osmotic coefficient Relation dissolved oxygen concentration at 20 °C wastewater/ clean water Activity coefficient aw pw relation maximal oxygen mass transfer rate at 20 °C wastewater/clean water Boundary layer thickness Porosity

Rate of hydrolosis by anoxic bacteria related to rate of hydrolosis by aerobic bacteria Efficiency coefficient Dynamic viscosity Coefficient, describing an influence of temperature Specific growth rate Tortousity

Velocity of diffusing oxygen molecules

Kinematic viscosity

Resistance coefficient

Number in analysis of dimensions

Osmotic pressure


Surface tension Dimensionless variance Dimensionless surface tension Variance according time Dimensionless time Phase angle of electric current g m-

ms s

Symbol Explanation

0 0

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