Modelling of sedimentation and remobilization in in-line storage sewers for stormwater treatment
Frehmann, T.; Flores, C.; Luekewille, F.; Mietzel, T.; Spengler, B.; Geiger, W.F.
Water Science and Technology a Journal of the International Association on Water Pollution Research 52(5): 151-158
2005
ISSN/ISBN: 0273-1223 PMID: 16248191 Document Number: 587961
A special arrangement of combined sewer overflow tanks is the in-line storage sewer with downstream discharge (ISS-down). This layout has the advantage that, besides the sewer system, no other structures are required for stormwater treatment. The verification of the efficiency with respect to the processes of sedimentation and remobilization of sediment within the in-line storage sewer with downstream discharge is carried out in a combination of a field and a pilot plant study. The model study was carried out using a pilot plant model scaled 1:13. The following is intended to present some results of the pilot plant study and the mathematical empirical modelling of the sedimentation and remobilization process.