Efficient activated sludge interception type secondary sedimentation tank process system with coupled deep filtration function

Abstract

The invention discloses an efficient activated sludge interception type secondary sedimentation tank process system with a coupled deep filtration function. According to the invention, a water delivery system communicates with the efficient activated sludge interception type secondary sedimentation tank having the coupled deep filtration function; and the efficient activated sludge interception type secondary sedimentation tank with the coupled deep filtration function comprises a tank body, a water inlet pipe, a water distribution system, an overflow weir, a slag blocking plate, a slag scraping plate, a mud scraping plate, a driving motor, a stirring device and a coupling filter tank. The system has the functions of net compensation, flocculent precipitation and filtration, also has the functions of mud-water separation, chemical phosphorus removal and deep filtration, can obviously improve the mud-water separation effect of a secondary sedimentation tank and reduce the hydraulic retention time and occupied area of the secondary sedimentation tank, and is coupled with a deep filtration system, so secondary lifting energy consumption is saved, and corresponding sewage pipelines aresaved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a high-efficiency activated sludge retention type secondary sedimentation tank process system with a coupling depth filtering function. Background technique [0002] Summarizing the experience in the upgrading and transformation of sewage treatment plants in my country in the past ten years, the biggest problem generally encountered is the limited land area. The construction land of existing sewage treatment plants cannot meet the actual needs of standard upgrading and transformation, which seriously restricts the development of sewage treatment plants. , while the area occupied by the secondary settling tank accounts for 10% to 20% of the process system; secondly, the sewage pipe network of my country's sewage treatment plants is dominated by the combined system. The load seriously exceeds the design standard, and the stable operation of the process of the sew...

AI Technical Summary

Problems solved by technology

[0002] Summarizing the experience in the upgrading and transformation of sewage treatment plants in my country in the past ten years, the biggest problem generally encountered is the limited land area. The construction land of existing sewage treatment plants cannot meet the actual needs of standard upgrading and transformation, which seriously restricts the development of sewage treatment plants. , while the area occupied by the secondary settling tank accounts for 10% to 20% of the process system; secondly, the sewage pipe network of my country's sewage treatment plants is dominated by the combined system. The load seriously exceeds the design standard, and the stable operation of the process of the sewage treatment plant is seriously threatened. One of the most prominent problems is the insufficient surface load of the secondary sedimentation tank

Images