Flow Balancing Method for Stormwater and Combined Sewer Overflow

摘要

Treating stormwater discharges or combined sewer overflows, CSO, is next to impossible without sufficient compensation or balancing of the strong peak flow variations. The Swedish inventor Karl Dunkers and the Swedish consultants KM have elaborated a new low-cost flow balancing method. Floating tanks consisting of pontoons with reinforced plastic curtains hanging down and anchored to the bottom of the recipient are arranged into a horizontally working balancing system according to the plug flow principle. The surrounding body of the recipient water is utilized as a balancing medium. This publication describes briefly the research work and the development of the method into three full-scale operating plants for balancing and phosphorus removal treatment of stormwater discharges in inland lakes.