Located on the southern edge of the Yangtze River Delta, Taihu Lake is one of the five largest freshwater lakes in China. With the rapid growth of the population of the Taihu Lake Basin, various water problems have gradually emerged. Recently, the National Water Special Project “Jiangsu Taihu Water Source Drinking Water Safety Technology Integration and Comprehensive Demonstration†project has developed 10 key technologies and processes to improve the quality of drinking water in Taihu Lake and has a demonstration role.
With the rapid increase in the population of the Taihu Lake Basin, the water consumption has risen, the water quantity lacks serious problems, and there are still problems such as drinking water source pollution and water supply facilities aging year by year. To this end, the Jiangsu Provincial Construction Department took the lead, and Tongji University was responsible for the “Technology Integration and Comprehensive Demonstration of Drinking Water Safety in Jiangsu Taihu Lake†project.
Tongji University professor Yu Shuili said in an interview with the media on the 5th that the research team has developed 10 key technologies and processes suitable for drinking water treatment in Taihu Lake through joint research, including 7 technologies in demonstration projects. It has been applied. Such as compound heavy pollution standby water source pre-ozone and biological pretreatment coupling treatment process, the process is used in the demonstration project of Yixing Weibin Water Plant, the organic matter removal rate is increased by 10%, the water production cost is increased by no more than 10%; pretreatment, long distance Water transport reactor and deep treatment integrated water purification key technology, this technology is used in the mid-bridge deep treatment water plant demonstration project, the effluent water quality index reaches the "Sanitary Standard for Drinking Water" (GB5749-2006), the oxygen consumption is less than 2 mg / l, the cost of water production will not increase by more than 30%; build a high-speed channel optimization dispatch operation management platform to reduce the power consumption per kiloton of water consumption by more than 1%; based on the secondary water supply quality assurance technology of the pipe network based on ultraviolet disinfection technology, build a monitoring platform, so that The water quality compliance rate of the faucet exceeds 95%.
The research team also formulated guidelines, operating procedures and guidelines for multiple water source switching and dispatching guidelines in Taihu Lake, Jiangsu Province, and obtained 21 invention patents; built four demonstration zones in Suzhou, Wuxi, Wujiang and Yixing, and a population of 2 million in the demonstration area. The water quality of the faucet in the house meets the national sanitary standard for drinking water.
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