Approach for integrating professional practice issues into undergraduate environmental engineering design projects

According to C. L. Dym and P. Little, the complete design process includes identifying a need or problem, recognizing constraints, identifying and developing courses of action, testing potential courses of action, selecting optimum courses of action, preparing the documents required for the design, managing the overall process, communicating the design, construction, and testing. We have addressed these design considerations by linking design projects in our introductory physicochemical treatment processes course (EV401, taken by second-semester juniors) and our senior capstone design course (EV490, taken by second-semester seniors). The process developed and implemented addresses the integration of professional practice into design inexperience. We require our cadet students to communicate with their customers, an illustrator, and tradesmen, three forms of communication that are necessarily quite different from traditional student-professor exchanges. Also, students must design under constraints, this time not because of the closed nature of the project but rather because of "real world" resource constraints: time to complete the project, a limited budget to purchase materials and labor, availability of materials, ease of construction, and balancing competing projects (in other courses). The first attempt at implementing this engineering design learning model occurred during the spring of 2001 in EV401. Herein we assess the design and construction of one of two projects, oriented toward modification of a surface-water treatment plant model. Results suggest that iterative growth can occur and a more complete appreciation of the design process can result.