title: Research of the flow procedures in a pressure sewer system.
abstract: At the Institute of Land Reclamation, Hydrology and Sanitary Engineering of the University at Rostock the pressure and flow ratios are examined within a measuring section in the pressure dewatering system on the Darss peninsula. The objective of the research project is the knowledge upgrade about the highly unsteady hydraulic conditions in a pressure sewer system. This paper firstly presents the method and the dimensioning of pressure dewatering systems, which can be done using either the peak effluent method or the statistical method; the examination program will be explained. The examination includes pressure difference measuring with two pressure meters and flow data measuring via magnetic-inductive flow meters. Additionally the pump running times of 15 pumping stations, as well as the compressor action of the pressure pipe rinsing station are continuously and temporarily recorded and saved. Finally the measuring results which provide initial information about the pressure and flow conditions in a pressure dewatering system will be presented. The effects of the rinsing, the low pressure differences, the air cushions, the seasonal differences as well as the daily development graphs of the wastewater production are all clearly visible.
authors.affiliation: Institute Of Land Reclamation, Hydrology And Sanitary Engineering, University Of Rostock, Satower Strasse 48, D-18059 Rostock, Germany. catrin.dohse@stud.uni-rostock.de
authors.forename: C
authors.initials: C
authors.lastname: Dohse
authors.forename: H
authors.initials: H
authors.lastname: Eckstädt
mesh_terms: D004738:Engineering; D004784:Environmental Monitoring / Q000295:instrumentation; D008280:Magnetics; D011312:Pressure; D012621:Seasons; D012722:Sewage; D014865:Waste Disposal, Fluid / Q000379:methods*; D014872:Water Movements
chemical_list: D012722:Sewage