The design exists of subsystems that are interconnected and contribute to the total closed biocycle system. In figure 5.1 the system is translated into an image to display all connections between the systems. As can be seen the systems delivers products that can provide in the basic need: food. Besides this the system delivers aid products that are needed as resources to produce products. The system also provides energy, which supports the goal of Texel to become energy self-sufficient. Although it is unknown how much energy can produced, our goal is to make this system energy self-sufficient. If more energy is produced than necessary it can contribute to the energy generation for the whole island.
The system starts with waste of the hospitality industry, farming and households. As analyzed in chapter 4 residual waste, organic waste, bulky garden waste and paper/cardboard are the largest waste streams. Residual waste can be lowered by increasing separation rate and reusing or sharing products of the techno-cycle to increase the product life span which reduces waste. An increased separation rate is important in our design to obtain as much value out of the system as possible. All waste that belongs to the bio-cycle is given purpose again by exchanging waste between systems and industries. In section 5.2 the different waste streams are explained in further detail.
The subsystems can be divided in five categories: Agriculture, cattle breeding, worm farming, biodigester, mushroom cultivation and aquaculture. These categories all are supported with facilities that are either existing, like farms or the seaweed center of NIOZ, are still need to be build such as the bio digester and mushroom cultivation facility. In section 5.3 the contributions and benefits of all stakeholders are discussed. In a program tourists can visit all these facilities in one day to learn more about the different aspects of the process where waste is transformed into a valuable resource. This is further discussed in section 5.4 since these facilities are spread around the island tourists are encouraged to visit the whole island, which increases the change that every area comes in contact with tourists. This gives opportunities for shops to address more clients and stimulate sales
Figure 5.1 The proposal for a new system in the spirit of the blue economy