2025 Volume 4 Issue 1 Pages 105-114
Combined sewer system faces the problem of pollution for untreated water caused by the increase in flow rate of the interceptor sewer during heavy rainfall. A fundamental solution to this problem is a high-accuracy diversion facility that can maintain a constant flow rate of interceptor sewer without being affected by the intensity of rainfall. In terms of cost-effectiveness, the high-accuracy diversion facility is superior to disaster prevention method such as the storage pipes and mechanical equipment. This study aims to verify the effects of auxiliary facilities for performance improvement of the high-accuracy diversion facility. The Computational Fluid Dynamics (CFD) is used for vilification. This paper comprehensively summarizes studies on the vast sewerage pipe system and local flow at diversion facility, which attempt to make breakthroughs toward optimization of the sewerage project.
