Re-bathroom_thermal and grey water reuse system in a domestic bathroom

The topic chosen for my dissertation deals with the field of sustainable design in the home, which considers the elements of society, environment and economic together, aims to eliminate negative environmental impact completely through skillful, sensitive design (McLennan, J. F.,2004). The first part of is the understanding of the sustainable design, including the definitions, goals, and principles, etc. The second section is to clarify the design method and design process of the thesis, providing a guide for the development of the paper. The next chapter starts from the analysis of a home system to figure out the resource consumption and the opportunity to reuse the output. The analysis is based on a family with 4 people, which is one of the most common families. It is found out that the warm gray water could be an entry point. Thus, a literature review of gray water has been done, involving the domestic water consumption, gray water definition, current gray water treatment principles and methods. Besides, the related design cases of designing a product or a system is also explained in this part. Finally, the clear-cut plan is defined in the chapter 4. Starting from the design guideline, concept and target users, the structure of gray water treatment system is decided. Combining the research on grey water treatment, it comes out that the method to achieve the function in the home. However, thinking about the difficulty and the cost of treating gray water in home, the equipment dealing with gray water is settled outside the home to save the room and the cost of buying and maintaining. In addition, the user experience and interaction is another aspect of consideration. Furthermore, the management of economic and business model are been done to verify the feasibility of the project.