Modelling of sedimentation and remobilization in in-line storage sewers for stormwater treatment

• Published in: Water Science & Technology Vol. 52; no. 5; pp. 151 - 158
• Main Authors: FREHMANN, T, FLORES, C, LUEKEWILLE, F, MIETZEL, T, SPENGLER, B, GEIGER, W. F
• Format: Conference Proceeding Journal Article
• Language: English
• Published: Oxford Pergamon 01-01-2005; IWA Publishing
• Subjects: Applied sciences; Buildings. Public works; Combined Sewer Overflows; Discharge; Exact sciences and technology; Freshwater; Geologic Sediments; Mathematical models; Modelling; Models, Theoretical; Overflow; Pilot plants; Sedimentation; Sedimentation & deposition; Sewage; Sewage tanks; Sewer systems; Sewerage. Sewer construction; Sewers; Storage tanks; Stormwater; Tanks; Waste Disposal, Fluid - methods; Water Movements; Combined sewer; Sewerage; Mobilization; Water treatment; Experimental result; International conference; Pilot test; Model study; Storm water; Sedimentation; Storage tank; Overflow
• ISBN: 9781843394976; 1843394979
• ISSN: 0273-1223; 1996-9732
• DOI: 10.2166/wst.2005.0129

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.