The Study On Urban Medical Waste Reclaiming Disposal Mode And Network

The medical waste reclaiming disposal in China is at a developmental stage in terms of the establishment and implementation of policies and regulations, reclaiming disposal mode, and reclaiming network. Compared with the perfect medical waste reclaiming disposal system and techniques in developed countries, the medical waste reclaiming disposal network in China has still been premature. In order to safeguard human health, avoid environmental pollution, and further develop the recyclable resources in medical waste so as to reach a win-win situation between social benefits and economic benefits, it is urgent to establish a complete, systematic, scientific and effective urban medical waste reclaiming disposal mode and also optimize the reclaiming disposal network.The present dissertation, starting from reviewing literature on medical waste reclaiming disposal at home and abroad, carried out an elaborate study from the following four perspectives. First, the construction of urban medical waste reclaiming disposal mode; second, the technique scheme of urban medical waste reclaiming disposal and the construction of its managing and information system; third, the study on the optimization of site selection of urban medical waste reclaiming network; fourth, the study on the optimization of the routes of urban medical waste reclaiming network.In the study on the construction of urban medical waste reclaiming disposal mode, the present dissertation proposed a mode that takes both social benefits and economic benefits into consideration. Based on the reverse logistics theory, the proposal of this mode is meant to reduce the harm of medical waste to human health and the environment, save cost, optimize resource deployment so as to promote sustainable development of the social economy of our country. The present study takes the city of Dalian as the subject of an empirical study. Based on the survey of relevant administrative departments (Dalian Environmental Protection Bureau), managing companies (Dalian Hanyang Solid Waste Disposal Co. Ltd.) and hospitals, this research analyzed the current situation of the medical waste reclaiming work in Dalian, clarified the contents (origin, recovery point, disposal centre) and linkup conditions (ways of consignation, disposal methods) of the components of the system and pointed out that the reclaiming system is not scientific and the need of improvement of management for the purpose of providing a reference for the establishment of urban medical waste reclaiming disposal mode.In the study on the technical plans of urban medical waste reclaiming disposal and the construction of management and information system, the present study constructed a frame of urban medical waste reclaiming disposal information system by means of the combination of RFID, GIS, and GPS that have been repeatedly developed and applied, which provided technical support for total informationalization, the eradication of illegal reclaiming and use of medical waste, and the implementation of video real-time monitoring. Besides, the study collected, stored and analyzed relevant data. The study developed Dalian Medical Waste Reclaiming Management System and put it into use in the government website of Dalian Environmental Protection Bureau in June,2010 and achieved good effects.With regard to the study on site selection model of urban medical waste reclaiming network, the present research analyzed the particularity of the site selection of medical waste collection, employed relevant theories of site selection of logistics node, applied the set covering model of the site selection of discrete point for the first time to the site selection of medical waste reclaiming network, and built mathematical models based on the qualitative study of the procedures, modes, technical solutions, etc. of urban medical waste reclaiming work. In the empirical study on Dalian, the scientificalness and feasibility of the models and algorithms have been verified, and the procedures and realization process of the algorithms will have good compatibility with the solutions of problems of the same type.In the study on the optimization of urban medical waste reclaiming network routes, the study first analyzed the issue from various perspectives, and then taking the features of the optimization of medical waste reclaiming network routes into account, made it clear that the issue is a single target one which is single logistics centre, non-full loads, pure cargo reception, hard time window, single vehicle model and has the least operating cost, i.e. the shortest vehicle route. In addition, a model of the optimization of vehicle route that has certain restriction on capacity and time window was built. With regard to the features of this model, the currently advanced heuristic algorithm- ACO was applied. The present research is an empirical study with the example of Dalian city and worked out an improved algorithm routine, whose results were proved to be better than the currently actual mechanical process. Research on urban medical waste reclaiming work is under development. Studies on this part, however, have quite considerable realistic significance in the current situation when the whole society pays close attention to health and environmental protection. All the research institutes should, from the perspectives of the medical waste disposal methods, the construction and implementation of reclaiming disposal management and information system, and all the aspects of the reclaiming disposal procedures, learn the advanced techniques and experience of foreign countries and do their utmost to improve the scientificalness, systematization and dynamics of the reclaiming work of medical waste. The state and local departments should do research seriously on the planning and deployment of medical waste reclaiming disposal, trying hard to promote recyclable economy, to protect the living environment, and to reach a win-win situation between social benefits and economic benefits.