avløpsføringen

Avløpsføringen is the planning, design, installation, operation and maintenance of systems that collect and transport wastewater and stormwater from buildings and urban areas to treatment facilities or receiving waters. It covers both private-property installations and public sewer networks, and includes the routing of pipes and conduits, the selection of materials, and the management of pumping stations and manholes.

Key components include building drainage connections, public sewer mains, stormwater conduits, pumping stations, valves, backflow devices, manholes and catch basins. Systems may be separate (spillvann and overvann) or combined, depending on local climate, regulatory requirements and urban planning.

The design process involves hydrological and hydraulic analyses to determine pipe diameters and slopes, as well as material choices, trenching and backfilling methods, frost protection, and considerations for future expansion and accessibility for maintenance. Installation is followed by testing and inspection to ensure joints are watertight and compliant with regulations before commissioning.

Operational aspects include routine maintenance, cleaning, CCTV inspections, and timely repairs to prevent blockages and leaks. The regulatory framework comprises national building and environmental regulations, planning permissions, and municipal wastewater-utility requirements, with an emphasis on preventing pollution and protecting water bodies. Sustainability considerations address energy use, emissions, and resilience of the system.

See also: spillvann, overvann, avløpsnett, vann og avløp.