Green Design and Recycling Industry Applications (below)

3. Green design and recycling

3.1 Recycling is an important part of the green product life cycle

Recycling is like a "resource converter", converting waste resources into renewable resources; recycling is like the heart of the human body, promoting the continuous operation of the green cycle.

The statistical analysis confirmed that the energy required to produce per kilogram of plastic is far lower than the energy demand of other competing materials. Considering the energy, the plastic has unparalleled advantages compared with other competitive materials. After the function has been completed, if appropriate recycling methods are used for waste plastics, such as burning incinerators to recover heat for power generation or municipal heating in an incinerator, there is reason to believe that the energy used to produce plastics is released during the recovery phase. In this way, the conservation of material and energy is achieved.

3.2 Legislative Support for Recycling Industry Development

With the successive formulation and implementation of "producer-responsibility laws" in some countries, government agencies will require manufacturers to reclaim their products from laws and regulations. Germany promulgated the "Packaging Waste Avoidance Act" in 1991 and the "Electronic Waste Disposal Act" in October 1996. Both laws and regulations stipulate that regardless of whether the manufacturer is German or foreign, they must bear the product or package. Recycling responsibilities after disposal. Obviously, legal support will be an important guarantee in the recycling process. Therefore, it is very important and necessary to speed up the establishment of various types of recycling rules.

3.3 Recovered entities

A joint recovery organization was set up by the production and sales operators to implement unified planning and management of recycling, combined with actual distribution, set up recovery points, and use existing recycling networks and marketing channels to perform recycling operations.

3.4 New Processes and New Methods in Recycling

The processes and methods in the recycling process are continuously updated. For example, in some developed countries, the "Automatic Dismantling and Recycling Plan" has been implemented, that is, when the automobile parts are manufactured, the code of the material is marked on the parts so that when the used cars are recycled, they are classified and recycled. Nissan Corporation of Japan has developed an extremely effective method for removing the paint on the surface of plastic parts, which enables the plastic parts to be recycled and used, thus increasing the recovery rate. US DIGITAL has developed a patented automated separation process for specific gravity and special solvents. By using this solvent, the contamination of computer housing materials made from a mixture of polyphenylene oxide and polystyrene can be completely eliminated, and then a process method will be adopted. The recovered polymer was mixed into a resin material containing 52% of clean treated material fragments and 48% of the new polymer and molded into a Class A roof covering, which was used to decorate the restaurant and other places.

4. Some Suggestions on China's Recycling Industry

At present, China's industry is in a transitional phase from the transition from traditional design to green design, and recycling is in an inefficient and disorderly state. In order to promote the development of China's recycling industry and narrow the gap with developed countries, it also requires long-term and unremitting efforts of all parties, among which the key points are:

(1) The government should increase investment in the recycling industry to form economies of scale; establish and improve relevant laws and regulations and industry standards, strengthen legislative protection support for recycling, enable manufacturers to receive returns from users and policies, and vigorously rectify recycling The market has strengthened the inspection of law enforcement; it has vigorously advocated and encouraged the reuse of recycled materials.

(2) Establish a "green design idea", incorporate the product's environmental costs into the product's financial budget, and implement green audits on product production.

(3) The advanced technology and experience of the same industry in foreign countries should be used for reference and introduction so that China's recycling industry can achieve leapfrog development.

(4) Intensify personnel training. It is suggested that universities and colleges set up courses on recycling, cultivate talents for composite science and technology, deliver “green design” engineers for the society, and provide basic guarantees for the sustainable use of resources.

5. Conclusion

China is a country with a low per capita resource and a relatively fragile ecological environment. At present, people across the country are carrying out economic construction and the tasks are very heavy. This article briefly describes the development status of green design and recycling industry and hopes to play a certain role in promoting the sustainable and healthy development of China's recycling industry.







Zhang Wangying (Wuhan Research Institute of Environmental Sciences, Wuhan 430015)

Xujun Sun (School of Resources and Environmental Sciences, Wuhan University, Wuhan 430072)