Fruit juice is filtered at a pressure of 200 kPa through a 0.2 m filter. Initial results indicate that 5 min is required to filter 0.3 m of juice. Determine the time taken until the rate of filtration drops to 5 x 10-5 m/s. If the flux of the system was determined to be decreasing with cake built-up, what would be the type of the filtration used? When the filtration rate is dropped, cake washing is conducted. Calculate washing time if 1% of solubles is retained in the cake and 1% of the filtrate is retained with washing efficiency of 80 %. (7 Marks)