”Reuse of Municipal Waste” is a course in which all the steps necessary to manage a city and control the solid and liquid waste will be taught in order to develop new forms of applications for these materials. The title of the course should be in quotation marks, or italics, to show that it is the name of the course. You can say " a course in which ... is/will be taught" ; " a course, during which ..... will be taught" or, to make it more direct, " a course during which you will learn how to manage a city and control the solid and liquid waste in order to develop..."

Between those two, only "where" works. But "in which" might fit best.