Filtration: theory
Filtration has evolved to be more of a practical activity rather than a theoretical science, which also brings challenges. However, the filtration theory has kept many scientists and engineers busy with the effort to quantify the common engineering rate relationship: Rate=(Driving force)/Resistance
Where, for general filtration, the resistance is the sum of the filter medium and the cake. Theory is never used as the only basis for the design of a filter, however, it is valuable to interpret laboratory results and predict operation conditions. The use of filtration theory is limited due to the fact that the filtering characteristics must always be determined for the to be filtered slurry. Data from one slurry cannot be compared to that from another. This is due to the role of the nature of the solid particles and their interaction, which is a complex matter that requires a lot of