| Serious pollution problem in urban water environment has been not only an important issue which restricts China’s economic development, but has also directly endangered the health of urban residents and urban ecological security. In recent years, Chinese government attaches great importance to the pollution problem of urban river. With the subsidization of "Major Science and Technology Program for Water Pollution Control and Treatment" and other fundings, Chinese government invested a large amount of money to carry out the comprehensive treatment of the urban river pollution and has achieved significant results in the research and development of treatment technology and the demonstration projects etc., but there are also some deficiencies which overall manifest as follows:1. There are plenty kinds of the treatment technology in urban river pollution but lacking of systematization;2. There is the continuously increasing of the technology demonstration projects but lacking of the assessment of treatment performance;3. The informatization of technology application and promotion is underdeveloped yet. Based on these problems, this thesis depends on the national special water pollution control project,"key technology research on urban black-odor river exogenous blocking, engineering repair, multi-level ecological purification and in situ demonstration", and systematically carried out the researches of the generic technical integration system of pollution in urban river, the performance evaluation system and performance evaluation service platform, and information management systems of pollution treatment etc.. The achievements of researches have certain scientific and practical significance in the promotion of treatment technology in China’s river pollution and the performance evaluation and informatization of river treatment project. Main research conclusions of this thesis are as follows:(1) Constructing a generic technology system which is suitable for our domestic river pollution treatment in South China. Based on the investigations of China’s river pollution and treatment effect in the southern city, the thesis systemizes pollution treatment technology and applications in south China’s city rivers and accesses to a large number of domestic and foreign research literatures of urban river pollution treatment technology. The thesis also systemizes the commonly used treatment technology in urban rivers both in domestic and foreign countries and concisely screens four main categories and18terms of technologies systems of pollution treatment which are suitable to be applied in Chinese city. The technology system includes five generic treatment technologies for point pollution, five for surface pollution, three generic treatment technologies for sediment pollution and five generic technologies for water pollution. And the research background, domestic and foreign research advance, the fundamental principles and features of above18generic technologies were systematically summarized, centering on revealing the generic features of the background of the research and development, domestic and foreign applications, basic principles, operation procedures, key parameters and advantages and the counterparts of technologies etc. in order to offer technology reference and guidance of the application of this technology system in the treatment of urban rivers in South China.(2) Designing the system of performance evaluation for river pollution treatment project in China’s southern cities. Based on the systematically analysis of the river pollution treatment project’s status and treatment features in parts of the southern Chinese cities, the theory of sustainable development, urban ecology and the theory of healthy river, the conceptual model of performance evaluation in urban river pollution treatment project which is named "Pressure-State-Response "(PSR) was established after a comprehensive survey in domestic and international engineering theories and methods of performance evaluation. Relying on the PSR model, from three aspects which are the social economic benefits, ecological environment benefits and social livelihood benefits of the project implementation, the thesis establishes the evaluation system which has three sub-systems, nine evaluation subjects and twenty-three detailed index. Analytic Hierarchy Process (AHP) was used to define each indicator’s weigh of performance evaluation system by using issuing questionnaires, inviting17experts scoring and consulting special conferences, and to establish performance evaluation system for river pollution treatment project in south china.(3) Developing the management information system of urban river pollution treatment. Combined with the current informatization requirements in environment treatment, the thesis developed the treatment management information system for river pollution by using Microsoft Visual. Studio2008C#., based on the constructed "river pollution generic technology integration system" and "performance evaluation system of urban river pollution treatment project," Geographic Information System (GIS) and SQL Server2005database technology. The system consists of four subsystems, namely: browsing and query subsystem which can be used for four categories18items of generic technology information for urban river pollution, integrated technology services subsystem that can be used to provide optimization services for river pollution treatment technology, performance evaluation subsystem for urban river pollution treatment project, and the subsystem for user management and maintenance of technology data update.(4) Carrying out the empirical research for urban river pollution generic technology and engineering performance evaluation. The thesis selects typical urban rivers in southern China, Wenzhou Jiushanwai River and Kunming Panlong River (South Ba village), as the demonstration river. The thesis conducts a detailed analysis of the application of the river pollution treatment generic technologies in these two rivers. Through the field visits, surveys by questionnaires, field monitoring, analysis in laboratory, investigation, literature reviewing and other forms of access to get information on the two demonstration projects of rivers. Relying on the establishment of the "management information system of urban river pollution treatment", the performance of two implemented rivers pollution treatment demonstration project were assessed. Performance assessment results show as follows:pollution treatment project of Jiushanwai river, Wenzhou, is in effective level (E=6.22) which has generated significant economic benefits (E=6.91) and environmental benefits (E=6.97), but also need to strengthen the social and livelihood benefits (E=4.81); the performance index E of Panlong river, South Ba village, demonstration pollution treatment project, is7.36which belongs to the effective level and has significant benefits in economic benefits (E=7.09), environmental benefits (E=7.67) and social livelihood benefits (E=7.12).The main features and innovations of this thesis as in the follow:(1) The establishment of generic treatment technology integration system in urban river pollution provides reference and guidance of technical information in southern China. The paper systematically summarizes the status of the application of urban river pollution treatment technology in southern China combined with the mature domestic and abroad technology. According to the six main principles of river treatment technology selection, general application, novelty, green, maturity, reliability and applicability, the generic technologies which are suitable for the urban river treatment in the southern area of our country is integrated. The thesis forms a generic technology system with four main categories and18terms generic technologies, which are suitable to be applied in southern Chinese cities. This generic technology system could provide the systematic reference for the application of urban river treatment technology in cities of southern China.(2) Establishing the performance evaluation system of treatment project in urban river pollution and providing the operation method, which is ease to be used for quantitative assessment of the effect in river pollution treatment projects in cities of southern China. This thesis systematically analyzes the theory and methods of the project performance evaluation in domestic and foreign. Based on the fully consideration of the operability in our country, a project performance evaluation system is constructed, which is suitable to be used in urban river treatment performance evaluation in southern Chinese cities including performance evaluation index in river pollution treatment project, method of defining the weight of indicator, the integrative performance evaluation models etc.. The system can be used for quantitative assessments in economic benefits, environmental benefits and social and livelihood benefits which the urban river treatment project brings out in China’s southern cities.(3) Developing the management information system of treatment in urban river pollution and providing an easy tool of operation for browsing and querying in urban river pollution treatment technology and the performance evaluation of projects. Based on the research of carrying out generic technology integration system and performance evaluation index system of engineering, by the GIS technology, this thesis develops the integrated generic technology in urban river pollution and management information system for performance evaluation in engineering. The system can be used to apply for decision support by browsing and querying the generic technology in urban river pollution, demonstrating the effect of the treatment result on an important demonstration project, selecting and recommending the optimal treatment technology and the performance evaluation in treatment engineering etc. in cities of southern China. |
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