Special structure as a collection point for all station elements

Special structures are special structures with variable geometric characteristics and a special function. Prominent special structures are e.g. inlet structures, stormwater overflow structures, possibly culvert head.The special structures wastewater treatment plant (Assembly AssetType 203), infiltration plant (Assembly AssetType 205) and pumping station (Assembly AssetType 220) are listed separately. (Sources: VSA, internal SEW documents)Translated with DeepL.com (free version)

Sewage treatment plant, wastewater treatment plant (WWTP), small wastewater treatment plant (KLARA) as a collection point for all station elements

Wastewater treatment plants are facilities for collecting, discharging, treating or disposing of wastewater. The wastewater is treated physically, biologically or chemically. For residents who live in such remote areas that a connection to a public sewage treatment plant is neither technically practical nor economically viable, a small wastewater treatment plant (KLARA) can be built. This treats the wastewater of individual houses or groups on site, whereby the wastewater is either discharged into a body of water or seeps away on the surface after treatment.The assettype serves as a “container” or “grouping element” for the various components and treatment elements of a WWTP. The structural characteristics of the elements are defined via the structure network (SewerInstallationBoundary > StructureBoundary, SewerInstallation>StructureNode). The structural elements do not necessarily have to be recorded, as the content of the installation is generally subject to a different responsibility than the pipe network. Translated with DeepL.com (free version)

Infiltration system (infiltration areas/infiltration basins/infiltration shafts/pipe and trench infiltration) as a collection point for all station elements

Infiltration is important so that rainwater can reach the ground. This promotes groundwater recharge and avoids unnecessarily high runoff volumes in the sewer network. To allow rainwater to infiltrate in settlement areas despite increasingly sealed surfaces, structural measures, so-called infiltration systems, are necessary. Infiltration areas can be created, i.e., squares, paths, and parking areas are built to be water-permeable or have lateral, humus-rich areas. Another possibility is indirect infiltration measures such as artificially created hollows or ditches. These are also referred to as infiltration basins/hollows. In addition to these above-ground structures, there are also underground measures. These are direct infiltration systems such as infiltration shafts or pipe and trench infiltration. (Sources: Department of Environment Canton AG, VSA)

Pumping station as a collection point for all station elements

Pumping stations are special structures in the wastewater network. They are used to lift wastewater or sewage sludge into higher-lying channels or chambers using booster pumps. Pumping stations are frequently used when wastewater in flat terrain can no longer be transported from smaller channels to main channels simply by differences in gradient. (Sources: VSA, ARA Untermarch, WasserWissen)