19. The graph in Figure 5.38 represents various flows that can occur through a sewage treatment plant with the numbers on the arcs representing the maximum flow (in tons of sewage per hour) that can be accommodated. Formulate an LP model to determine the maximum tons of sewage per hour that can be processed by this plant. FIGURE 5.38 Network flow model for the sewage treatment plant

19. The graph in Figure 5.38 represents various flows that can occur through a sewage treatment plant with the numbers on the arcs representing the maximum flow (in tons of sewage per hour) that can be accommodated. Formulate an LP model to determine the maximum tons of sewage per hour that can be processed by this plant. 2 10 5 7 8 8 9 9 9 9 3 7 6 11 6 FIGURE 5.38 Network flow model for the sewage treatment plant AutoSave OFF A 2 29... 3Prb5_19_empty_Solver Home Insert Draw Page Layout Formulas Data Review View Analytic Solver Data Mining Tell me Share Comments X Arial 10 V Insert . = = > v Tv V Custom v WE 48 @ 9X Delete V Paste B I I U A V E $ %) V Solver V 100 0 Conditional Format Cell Formatting as Table Styles A Format Sort & Filter Find & Select Analyze Data L10 4 x fx D E F G H 1 J L M M N 0 R S T U U V W Y Z AA AB AC AD AE AF AG AH AJ AK AL AM AN B of Flow From 1 2 1 1 2 Node Net Flow 1 2 3 4 3 4 3 5 5 6 Bound 8 9 7 7 10 8 8 7 9 6 6 9 9 11 1E+06 2 3 3 3 5 6 7 D 4 5 7 3 6 7 7 6 7 1 = Maximal Flow 4 5 6 7 8 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 Maximal Flow Report + - Ready @ + 100%