Ceramic Tableware Recycling by Green Life 21 Project - Red Objects

More documents

Recommendations

Info

Table 2 CO2 emission of recycled and conventional tableware in processes [kgC/t] Recycled tableware Conventional tableware Recovery 2.4 Mining 0.5 Body preparation Crushing 4.3 Refining and crushing 8.3 Preparation 10.9 Preparation 10.9 19.3* 1 19.7* Tableware manufacturing 427.4 427.4 Total CO2 emission 446.7 447.1 *1 (2.4+4.3+19.9)×20%+(0.5+8.3+10.9)×80%=19.3 *2 (0.5+8.3+10.9)×100%=19.7 2.3 Reinforced Porcelain Tableware Recycling In addition to the aforementioned recycling of general porcelain tableware, there is the recycling of the reinforced porcelain tableware that is used in school food services. The recycling method is technically the same as general porcelain tableware. However, reinforced tableware is manufactured by incorporating approximately 30% of more expensive aluminum in order to increase product strength. In the recycling of reinforced porcelain tableware, used reinforced porcelain tableware is collected to use the aluminum that it contains in order to reduce the volume of aluminum consumption. The advantage is to offset purchase costs, transport costs and crushing costs by collecting used reinforced porcelain tableware as a valuable resource to avoid the cost of using new aluminum. It can also reduce the CO2 emission volume by approximately 3% by reducing the amount of high LAC aluminum consumption (in the case of combining recycled materials at 20%) (Takahashi 2009, p. 37). 3. System for Manufacturing Recycled Tableware—Re-shokki In order to put these recycling technologies to practical use, it is necessary for the suppliers to establish a system for manufacturing recycled tableware. Since the tableware manufacturing processes are remarkably divided into small processes for each company in the Mino ware production area, it is difficult for a single manufacturer to complete the entire recycling process. Therefore, companies engaged in different business categories—such as the collection and transport of used tableware, crushing, clay preparation, pottery manufacturing, and wholesaling— must cooperate and organize a system to create a recycling loop. Moreover, in order to create a closed loop “from tableware to tableware,” measures must be taken for surplus tableware that cannot be recycled. Cooperation is also required with companies involved in building materials, which use the surplus tableware effectively. The GL21 has created this type of cooperative system between suppliers and functions as a system for manufacturing recycled tableware. The GL21 has also promoted cooperation with multiple governmental agencies and university researchers and has obtained support for recycling technology, environmental designs and marketing. “Re-shokki” is the name given to the tableware manufactured under the system for manufacturing recycled tableware shown in Figure 2 (GL21 System). RED Objects⏐⏐Collaboration in Experimental Design Research 76
4. Tableware Recycling Networks Fig. 2 Ceramic ware recycling system Fig. 3 Life cycle of recycled tableware To establish a social system for tableware recycling, it is essential that manufacturers establish recycling technology and a manufacturing system and that they organize recycling networks with tableware users. Tableware recycling is a type of manufacturing that can only be carried out when users return their used tableware so that it can be used as a resource. It could be said that recycling is an activity that functions only when manufacturers and users share a mutual understanding and concern over the same issues in their communication. The life-cycle of recycled tableware is shown in Figure 3. It depicts how objects are returned to manufacturers by users via the collection stage. This reverse flow of tableware cannot be seen in conventional tableware and indicates the establishment of a new relationship between users and manufacturers. In other words, tableware recycling practices user-participation-type manufacturing; it is an activity that creates not only the recycling of objects, but also a flow of information and communication. To recycle ceramic ware that is deeply rooted in daily life in Japan affects citizens and groups in different areas of consumption and encourages environmental activities triggered by tableware recycling. The development of these civic activities creates a flow where citizens and groups communicate about new and future environmental issues with manufacturers and raise the need to find solutions to those issues. In a sense, the manufacturers’ tableware recycling technology helps develop a RED Objects⏐⏐Collaboration in Experimental Design Research 77
Page 1 and 2: Ceramic Tableware Recycling by Gree
Page 3: The physicality, safety and environ
Page 7 and 8: In this network, the collected ware
Page 9 and 10: 7. Future Development Ceramic ware

Ceramic Tableware Recycling by Green Life 21 Project - Red Objects

Create successful ePaper yourself

Delete template?

Save as template?