5) In an ultra filtration process, the feed, whose composition properties are given below, is intended to be concentrated by protein in a polyethersulfone membrane with a pore size of 30 kDa. Time versus mass data obtained in this process are given in the table below. Using this data; a. Plot the permeate flux (kg/m2 hour) versus time (hours). b. Please give brief information about the pollution mechanisms that occur by examining this graph. c. Establish mass balance for each component. Calculate the mass (g) of each component in the feed, permeate and retentate flows. If there are losses in the system, consider the possible causes of these losses in a scientific way, considering the contamination mechanisms. d. Calculate the WRF value. Note: Effective membran area is 140 cm t (minute) 1 5 10 15 20 25 30 45 60 90 120 150 180 240 300 360 420 480 m (g) 55 213 375 445 495 526 539 577 614 689 761 835 908 1061 1208 1352 1490 1625 Protein (g/100g) 0,9 Feed Retentat 3,35 Permeate 0,2 Lactose (g/100 g) Calcium (g/100g) 4,5 3 4,8 0,5 1,1 0,2 Brix m(g) 2000 375 1625 5,7 7,3 5,2