The reporter learned from the Ministry of Science and Technology last week that since the launch of the "Water Pollution Control and Control" major science and technology project, which aims to provide comprehensive technical support for the prevention and control of water pollution in the country, a number of urgently needed water pollution solutions have been tackled. The prevention and control of key technologies has improved the technological level of China's comprehensive water environment governance.
Among them, membrane-bioreactor (MBR) is one of the most promising water treatment technologies in the 21st century. It has the advantages of high concentration of microorganisms, strong impact load resistance, good effluent quality, and direct reuse. MBR enhanced nitrogen and phosphorus removal process and wastewater reuse technology have been successfully used in the upgrading of Taiyuan Lake sewage treatment plant. On this basis, the research team built a pilot plant with a treatment capacity of 100 m3/day in Wuxi. After more than six months of operation, it obtained important process design parameters and completed a processing scale of 20,000 in November 2009. Cubic meters/day MBR enhanced nitrogen and phosphorus removal demonstration project. The demonstration project has been operating well so far, and the effluent indicators have fully met the relevant emission standards, achieving a win-win result of both environmental and economic benefits.
The Clean Production Key Technologies and Engineering Demonstration Task Force of the polluting industry cooperated with Changchun Dacheng Group to use electrodialysis to remove salt and make the toll cost of starch sugar 22% lower than traditional ion exchange technology; the application of direct crystallization technology solved lysine The problem of discharging high-concentration wastewater during the production process. The implementation of the project will reduce the discharge of waste water in Changchun City by 450,000 tons and reduce COD emissions by 5,000 tons, thereby significantly reducing the environmental pressure on the Changchun section of the Songhua River.
Among them, membrane-bioreactor (MBR) is one of the most promising water treatment technologies in the 21st century. It has the advantages of high concentration of microorganisms, strong impact load resistance, good effluent quality, and direct reuse. MBR enhanced nitrogen and phosphorus removal process and wastewater reuse technology have been successfully used in the upgrading of Taiyuan Lake sewage treatment plant. On this basis, the research team built a pilot plant with a treatment capacity of 100 m3/day in Wuxi. After more than six months of operation, it obtained important process design parameters and completed a processing scale of 20,000 in November 2009. Cubic meters/day MBR enhanced nitrogen and phosphorus removal demonstration project. The demonstration project has been operating well so far, and the effluent indicators have fully met the relevant emission standards, achieving a win-win result of both environmental and economic benefits.
The Clean Production Key Technologies and Engineering Demonstration Task Force of the polluting industry cooperated with Changchun Dacheng Group to use electrodialysis to remove salt and make the toll cost of starch sugar 22% lower than traditional ion exchange technology; the application of direct crystallization technology solved lysine The problem of discharging high-concentration wastewater during the production process. The implementation of the project will reduce the discharge of waste water in Changchun City by 450,000 tons and reduce COD emissions by 5,000 tons, thereby significantly reducing the environmental pressure on the Changchun section of the Songhua River.
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