Function and Renewal of SEWER SYSTEMS

The research within the theme Sewer systems includes sewers renewal and new placement as well as processes that take place in the sewer network and affect the function of the sewer system. The theme is led by Annelie Hedström.

Today's systems for storm- and wastewater are a very important part of the overall urban water system and its function and many of these sewer systems are in need of renewal. The processes occurring in the sewer systems influence the sewers’ functioning and longevity that can have impacts on the performance of the whole sewerage system. Challenges related to e.g. infiltration and inflow, misconnected pipes, hydrogen sulfide, and FOG deposits are important to focus on. Furthermore, there is a need for technology development concerning pipe trench construction, co-location and coordination of pipes with other infrastructure as well as development of strategies to be able to achieve resource efficient operation and maintenance of the urban water infrastructure.

Following research and development projects are currently pursued within this field:

• Statistical methods for analyses and prediction of operational problems and measures at the pipe network
• Integrated renewal planning of pipe systems together with other infrastructure
• I/I in sewer systems - detection and quantification
• Wrong pipe connections - indicators and methods
• Innovative sewer installation and renovation
• Separate sewer overflows

Research projects

• Current research projects theme Function and Renewal of Sewer systems