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Solve the following problems: 1. A mechanical engineer is comparing three alternative processes for increasing the efficiency of a wastewater treatment facility. The costs and benefits determined for the three alternatives are listed in the Table below. The interest rate is 7% and each of the processes being analyzed has a life of 12 years. Draw CFD for the wastewater treatment process alternatives. And then use the present worth analysis to select the best alternative. Then use the net present worth (NPW) analysis to select the best alternative. Mechanical Processes for Wastewater Treatment Facility CFD of Process 1: CFD of Proroce 2