This project belongs to the professional field of environmental systems engineering. In recent years, my country's water quality safety incidents have occurred frequently, attracting great attention from governments at all levels and the broad masses of the people. Our country's cities are densely populated and there are many types of water quality risks, which put forward higher requirements for the safety of water supply. However, at present, technical research on water quality risk analysis and disposal is still insufficient. The formulation of safe water supply plans for various water quality risks is still at an empirical stage, and there is a lack of in-depth research and promotion and application of supporting technologies for generating water supply plans. Shanghai's water supply security situation is not optimistic, and it is also the responsibility to lead the country in this field. Tongji University has summarized years of research and application practice in this field, formed systematic research results from "discovery" to "resolution" of water quality risks, and proposed a complete technical support system for safe water supply from "water source" to "users"., and achieved the promotion and application of the technology.
The innovation points of the project include: (1) Risk discovery-comprehensive analysis and evaluation technology for water quality risks. Innovatively developed rapid COD analysis technology based on prefabricated reagents, toxicity detection technology for trace non-polar organic pollutants based on Vero cells, pollutant toxicity assessment and prediction technology, persistent toxicity detection technology for nematode elegans, and trace degeneration in the water environment. A variety of water quality risk analysis and evaluation methods such as renaturation recombinant DNA detection and gene spread risk assessment have developed a method library to overcome the slow analysis and evaluation of conventional/unconventional pollutants. Technical bottlenecks such as low sensitivity and reliability enable the analysis and evaluation of low doses and combined pollution, and reduce costs. (2) Resolving risks-water supply emergency treatment and disposal technology. For the first time, 11 pollutants in five categories that are representative, high-risk, high-harm and long-lasting impact were selected as research objects for raw water transportation and emergency treatment and disposal of water supply in water plants. They are used for raw water and tap water supply mainly based on conventional water treatment processes., pipe network water supply quality assurance and operation scheduling have developed a series of treatment and disposal technologies to deal with water quality risk incidents, forming a technical method library for emergency treatment and disposal of safe water supply. (3) Response to specific cases-generation technology of water supply emergency plans. On the basis of the research and development of comprehensive analysis and evaluation technology for water quality risks and water supply emergency treatment and disposal technology, aiming at the complex situations of different specific cases, with the help of the calculation and analysis of the dynamic simulation and prediction model for water quality and the simulation and prediction model for water quantity and water quality of the water supply network, we innovatively Integrate artificial intelligence methods such as case-based reasoning, genetic algorithms, and artificial neural networks into the generation of water quality risk case libraries and safe water supply emergency plans, A technical system for generating safe water supply plans oriented to resolving water quality risks has been formed.
The technology developed in this project was adopted and applied by the water and environmental protection department of Shanghai City, relevant raw water and water supply enterprises, and successfully solved municipal water supply safety problems such as the quality of raw water and the pig death incident in the Huangpu River during the World Expo. It was also promoted and applied in Jiangsu, Jiangxi, Guangdong and other places, resolving water quality risks many times, and improving the management and technical level of local water and environmental protection departments, raw water and water supply enterprises, instrument and testing companies, and design and research institutions. Relying on the results of this project, Zhenjiang City issued the "Emergency Response Plan for Urban Water Supply Emergencies", and Tongji University participated in the compilation of the Ministry of Science and Technology's "Practical Knowledge, Technology and Product Manual for Earthquake Relief No. 2 (Safe Drinking Water and Water Supply)". The project has obtained a total of 3 invention patent authorizations, 1 utility model patent, and applied for 5 invention patents; 6 software copyrights have been obtained; a total of 35 SCI papers and 8 EI papers have been published in multiple mainstream journals in the international environmental field. The number of citations has been 224 times (including 172 citations), 55 core journal papers, and 1 monograph has been published; a total of 2 postdoctoral students, 7 doctoral students, and 23 master's students have been trained. This project has promoted the development of technologies such as water quality risk analysis and water supply plan support in the water supply and water environmental protection industry, and promoted the transformation of my country's water quality safety assurance work from an experience-based to a knowledge-supported scientific decision-making method.