• Assessing the robustness of raingardens under climate change using SDSM and temporal downscaling 

      Kristvik, Erle; Kleiven, Guro Heimstad; Lohne, Jardar; Muthanna, Tone Merete (Journal article; Peer reviewed, 2018)
      Climate change is expected to lead to higher precipitation amounts and intensities causing an increase of the risk for flooding and combined sewer overflows in urban areas. To cope with these changes, water managers are ...
    • Detection of extraneous water ingress into the sewer system using tandem methods- A case study in Trondheim city 

      Beheshti, Maryam; Sægrov, Sveinung (Journal article; Peer reviewed, 2019)
      Infiltration and inflow (I/I) of extraneous water in separate sewer systems are serious concerns in urban water management for their environmental, social and economic consequences. Effective reduction of I/I requires ...
    • Embracing epistemic uncertainty: a risk evaluation method for pollutants in stormwater 

      Pons, Vincent; Strømberg, Merethe Arntsen; Blecken, Godecke-Tobias; Tscheikner-Gratl, Franz; Viklander, Maria; Muthanna, Tone Merete (Peer reviewed; Journal article, 2024)
      In this study, we show that pollutants of emerging concern are, by nature, prone to the emergence of epistemic uncertainty. We also show that the current uncertainty quantification methods used for pollutant modelling rely ...
    • Enhancing efficiency and economy of phosphorus recovery process by customizing the product based on sidestream characteristics 

      Shaddel, Sina; Ucar, Seniz; Andreassen, Jens-Petter; Østerhus, Stein Wold (Journal article; Peer reviewed, 2019)
      The enhanced biological phosphorus removal process makes the phosphorus recovery feasible from the dewatering streams of biological sludge. The physicochemical properties of these sidestreams, as an input to a crystallizer, ...
    • Hotspot analysis for integrated multi-infrastructure asset management 

      Daulat, Shamsuddin; Roghani, Bardia; Rokstad, Marius Møller; Tscheikner-Gratl, Franz (Journal article; Peer reviewed, 2024)
      Urban infrastructure, important for societal functioning, faces challenges from aging assets and increasing service demands. Traditional asset management practices, often conducted in silos, fail to address the interconnected ...
    • Implementing an extended kalmanfilter for estimating nutrient composition in a sequential batch MBBR pilot plant 

      Nair, Abhilash M.; Fanta, Abaynesh Belay; Haugen, Finn; Ratnaweera, Harsha (Journal article; Peer reviewed, 2019)
      Online monitoring of water quality parameters can provide better control over various operations in wastewater treatment plants. However, a lack of physical online sensors, the high price of the available online water-quality ...
    • A method to identify the weakest link in urban drainage systems 

      Meijer, Didrik; Korving, Hans; Langeveld, Jeroen; Clemens-Meyer, François (Peer reviewed; Journal article, 2023)
      Urban drainage systems are composed of subsystems. The ratio of the storage and discharge capacities of the subsystems determines the performance. The performance of the urban water system may deteriorate as a result of ...
    • Metrics to quantify the degree of co-location of urban water infrastructure 

      Daulat, Shamsuddin; Roghani, Bardia; Langeveld, Jeroen G.; Rokstad, Marius Møller; Tscheikner-Gratl, Franz (Journal article; Peer reviewed, 2024)
      Co-located infrastructure networks such as road, water, and sewer in theory offer the possibility for integrated multi-infrastructure interventions. However, how closely these networks are aligned in space and time determines ...
    • Pardon my trench: reflections on the uptake of trenchless technologies in the Norwegian water sector 

      Rokstad, Marius Møller; Bruaset, Stian; Skaar, Bjørn Solnes; Borgen, Eirik Otnæs; Tscheikner-Gratl, Franz (Journal article; Peer reviewed, 2024)
      Trenchless pipe renewal can be a more cost-, time- and environmentally effective alternative to traditional open-cut replacement. It reduces service disruptions for surrounding infrastructures and is often cheaper, especially ...
    • Revising Green roof design methods with downscaling model of rainfall time series 

      Pons, Vincent; Muthanna, Tone Merete; Sivertsen, Edvard; Bertrand-Krajewski, Jean-Luc (Peer reviewed; Journal article, 2022)
      Historically green infrastructure for stormwater management has been event-based designed. This study aims to realign the green infrastructure design strategies with principles for robust decision making, through the example ...
    • The role of hyetograph shape and designer subjectivity in the design of an urban drainage system 

      Pritsis, Spyridon; Pons, Vincent Jean-Michel Thierry; Rokstad, Marius Møller; Clemens-Meyer, Francois Henri Leon; Kleidorfer, Manfred; Tscheikner-Gratl, Franz (Journal article; Peer reviewed, 2024)
      Even though it has been established that a hyetograph's shape affects the results of hydrological simulations, common engineering practice does not always account for this fact. Instead, a single design storm is often ...
    • UV treatment and air quality in a pool facility 

      Nitter, Therese Bergh; Svendsen, Kristin V Hirsch (Peer reviewed; Journal article, 2019)
      We investigated how UV treatment of indoor pool water affects the concentration of trihalomethanes (THMs) and chloramines (NCl3) in the air above one therapy pool. One-hundred and sixty-two samples of tTHMs (sum of the ...