The coal refuse thickener capacity charts in the powerpoint from class are determined using a flux of $1gp\frac{m}{f}t2$ of thickener area. This is a comfortable feed rate for a thickener for coal refuse. Your existing $110ft$ diameter thickener for coal refuse is capable of handling $9,503$ gpm of slurry. If you decided to increase the capacity of your plant so that the feed rate to the thickener was now $12,000gpm$ of slurry, what is the new flux or rise rate $($remember the calculation for the area of a circle$)$ for this thickener $($show your calculation$)?$ What can you do to ensure that it still works properly?