Filtration operations—basic equations, incompressible cakes

3 Filtration operations—basic equations, incompressible cakes 

The general filtration equation, equation 9.5, after substitution of w(r) from equation 9.9, becomes 

As the total flow volume is an integral function of the flow rate 

Equation 9.10 can be rewritten in reciprocal form (thus giving time per unit flow), which is more convenient for further treatment 

It is useful for the mathematical simplicity of the final equations to define two 

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