Numerical Approach to Clarifier Operation According to Flux Theory

Abstract

Limiting flux theory has become accepted in the design of secondary clarifiers, and has proven useful in the operation of existing activated sludge facilities. In this paper, the governing equations used to find the recycle and waste flow rates which correspond to limiting flux operation for a given plant condition are reviewed. A numerical technique is derived and applied in order to obtain an approximation to this equation set using a specific example. This approach is useful for incorporating limiting flux theory directly into design optimization models.