大型自来水厂深度处理工程设计及运行总结OA

The designed capacity of X Water Plant is 1 000 000 m3/d.The raw water is sourced from the main stream of the lower reaches of the Yangtze River.Due to the long-term presence of organic micro-pollution and sudden se-vere pollution in the raw water,conventional treatment processes have been unable to solve the pollution.Therefore,a advanced treatment project must be implemented;Additionally,based on the actual operation of the water plant,a 500 000 m3/d advanced treatment can be carried out recently.According to the water quality characteristics of the raw water,the advanced treatment process adopts the ozone-biological activated carbon process by process compar-ison,which is set behind the existing V-shaped sand filter to reduce the construction workload of dismantling and rebuilding the current process.The overall layout scheme of the advanced treatment facilities and the selection of the main water purification structures are compared,the selection of main design parameters are demonstrated,mea-sures to cope with changes in water volume and water quality are proposed,and the technical and economic compar-ison of the foundation treatment scheme is conducted.The actual operation of the advanced treatment process shows that the advanced treatment process has good water purification effect and stable operation with strong ability to treat sudden pollution of the raw water quality.