Study On The Recycling Network System Of Waste Electrical And Electronic Equipment Based On GIS In Shanghai

With the fast development of electronic technology and the improvement of people's living standard, the electrical and electronic equipments update with an accelerating speed. While human beings are enjoying the achievements of modern electronic technology, a series of environmental and social problems occur, one of which is that lots of waste electrical and electronic equipments (WEEE) are produced. Now, the whole world is faced with the dilemma of WEEE's overrunning. Study on the recycling, disposal and utilization of WEEE has become the concerned problem for the world. WEEE is a two-edged sword. If it is disposed expediently, it can be a valuable and repetitively-used resource which will promote the sustainable development for the economy, society, resource sand environment. Otherwise, it will result in the great waste of resources and contamination of environment.There has been successful experience and technology for recycling and utilizing of WEEE overseas. Since China is a developing country, the theoretical research, system construction, and technological application for the recycling and utilization of WEEE are just underway, and the reasonable and consummate recycling network system of WEEE has not yet to be founded all over the country. Shanghai, as one of the most developed areas in China, should be functioned as a model in constructing the recycling network system of WEEE and in establishing the correlative laws and regulations. Based on the study of the Recycling Network System of WEEE, one part of Shanghai Science and Technology Commission research of "Technology for Distilling Aurum from WEEE and Establishment of recycling network" which the author studies in cooperation with DongHua University, combined with the relevant researches home and abroad, using the technology of GIS, the dissertation studies the recycling network system of WEEE in Shanghai systematically and comprehensively with the methods of the combination of qualitative and quantitative and of the synthetic integration from qualitative to quantitative, etc. It mainly covers the following parts:The first chapter is an introduction, which expounds the objective and significance of the study for the recycling network system of WEEE, the current relevant studies and their applications home and abroad, as well as the framework and main contents of the dissertation.The second chapter discusses the theoretical foundation and technological and methodological system for the study of the recycling network system of WEEE. Based on the definition of the key concepts related to the recycling network system of WEEE, it explores the main contents of the circular economic theory, reverse logistics recycling theory, extended producer responsibility theory, location theory and complex system theory and their applications in the study of the recycling network system of WEEE in Shanghai, and puts forward the reverse logistics model for WEEE based on the circular economy. The recycling network system of WEEE is a complex system engineering problem, so it must be analyzed and demonstrated through the methods of the combination of qualitative and quantitative, of the synthetic integration from qualitative to quantitative, etc. Furthermore, the construction of the recycling network system of WEEE involves the spatial distribution and combination of various equipments, so the spatial technology which is represented by "3S" (GIS, RS, GPS) technology should play an important role in the study.The third chapter gives a brief analysis about the current condition of the recycling network system of WEEE in Shanghai. The investigation and research results show that the comprehensive and reasonable recycling network system of WEEE has not been established in Shanghai; that the visiting individual practitioners are the main force for recycling WEEE; that the individual WEEE recycling shops form the main recycling network; and that the simply-disposed and processed recycled WEEE result in serious resources waste and environmental pollution.The fourth chapter conducts a comprehensive analysis and prediction of the gross of WEEE, its sources and spatial distribution. The prediction of the WEEE gross is the premise of the construction of the recycling network system of WEEE. The dissertation predicts the sales volume of the main electrical and electronic products with the methods of dynamic forecasting with recursive compensation by gray numbers of identical dimensions and of time series forecasting. And it also makes a predictive analysis of the WEEE gross and its sources, temporal change and spatial distribution, according to the fixed number of using years and the investigation results. The research result indicates that the gross of WEEE in Shanghai is increasing rapidly and that the concentration rate of its distribution (the gross of WEEE per acreage) in the downtown is relatively high while that in the peripheral districts is relatively low in the terms of spatial distribution.The fifth chapter is the most important part of the dissertation. Through studying the recycling network system of WEEE at home and abroad and according to the recycled WEEE utilization model and WEEE reverse logistics model based on the circular economy, it argues that the recycling network system of WEEE in Shanghai should be composed of four parts: recycling bins, storage shops, disassembling and checkout centers, and disposal factories. Supported by the fuzzy comprehensive evaluation model, multi-location model and multi-factor comprehensive evaluation model, it builds a "1442" model for the construction of the recycling network system in Shanghai: a recycling bin is built in each town or street; four storage shops, disassembling and checkout centers are constructed in the northwestern, southern, eastern, and Chongming areas of Shanghai respectively to store, disassemble and check the WEEE; two disposal factories are set up in the northwestern and southeastern areas of Shanghai respectively to dispose the WEEE. Theoretical research shows that this model is basically adapted to the needs for the recycling and disposal of WEEE in Shanghai.The sixth chapter mainly discusses the design and realization of the management system based on WebGIS for the recycling network of WEEE in Shanghai. Based on the analysis of the application of GIS in the research and management of recycling network system of WEEE, it emphatically studies the following problems: the integration of GIS and the (mathematical) model for the recycling network system of WEEE; the design and construction of the WEEE recycling network management database in Shanghai; and the design of the management information system based on WebGIS for the recycling network of WEEE in Shanghai. And it also studies the development and realization of functions of some parts.The seventh chapter discusses the construction of the mechanism and legal system for recycling network system of WEEE. Firstly, it analyzes the responsibilities and obligations of the participants (including the government, producer, franchiser, consumer, recycling and utilization enterprise) in the process of recycling and disposing WEEE. Secondly, it puts forward the operational model (including the recycling model, charge model and management model) for the WEEE recycling network system under the principles of "those who pollute take the responsibility" and "those who receive benefits take the responsibility". Lastly, on the basis of analyzing the correlative legislation abroad for recycling and utilizing WEEE, it discusses the construction of law and statute for recycling and utilizing WEEE. It illustrates the construction of mechanism and system for the recycling network system of WEEE in China from the administrative supervision system, extended producer responsibility system, compulsive recycling system, payment system and economic incentive mechanism. Moreover, some suggestions and countermeasures are brought forward for the construction of the recycling network system of WEEE in Shanghai.The eighth chapter sums up the whole dissertation and puts forward the prospects of the research, pointing out some aspects to be studied for the future.Generally speaking, the major contributions and innovations of the dissertation are as follows: (1) Based on the circular economic theory and reverse logistics theory, it puts forward the circular utilization model and reverse logistics model for recycling WEEE, which is a great contribution in theory and concept models to the construction of the recycling network system of WEEE.(2) The gross of WEEE and its temporal and spatial distribution in Shanghai are thoroughly analyzed and studied. The "1442" model for the construction of the recycling network system of WEEE in Shanghai is put forward, and at the same time, the location of various facilities is determined through multiple models. All of the above provide the essential theoretical and technological support for the construction of the recycling network system of WEEE in Shanghai and other areas in China.(3) The management information system for the recycling network of WEEE in Shanghai is designed, the conception of WEEE logistics is brought forward and GIS technology is applied to the management of WEEE, all of which provide the primary technological method for the logistics management of WEEE.(4) The operational model (including recycling model, charge model and management model) for the recycling network system of WEEE is put forward,especially the capital management model——fund management institution model thatis the most important in the management model, which provide a feasible operation and management model for the industrialization of the WEEE recycling and disposal in China.