Browsing USN Open Archive by Author "Bjerkholt, Jarle Tommy"
Now showing items 1-7 of 7
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Analysing consequences of infiltration and inflow water (I/I-water) using cost-benefit analyses
Sola, Kristin Jenssen; Bjerkholt, Jarle Tommy; Lindholm, Oddvar G.; Ratnaweera, Harsha (Peer reviewed; Journal article, 2020)The Municipality of Asker (Norway) is at risk of not meeting the water quality targets set by the European Union Water Framework Directive within the stipulated timeframe. While there are multiple factors negatively impacting ... -
Categorising area models for stormwater fees at propert level: A literature review
Rydningen, Ulf; Torgersen, Geir; Bjerkholt, Jarle Tommy (Journal article, 2022)Worldwide, the increasing challenges due to stormwater run-off in urban areas are well known. Authorities need to be prepared for emergency situations and have plans for preventive measures to avoid flooded properties and ... -
Evaluating flood exposure for properties in urban areas using a multivariate modelling technique
Torgersen, Geir; Rød, Jan Ketil; Kvaal, Knut; Bjerkholt, Jarle Tommy; Lindholm, Oddvar G. (Journal article; Peer reviewed, 2017)Urban flooding caused by heavy rainfall is expected to increase in the future. The main purpose of this study was to investigate the variables characterizing the placement of a house, which seem to have an impact when it ... -
Identifying factors influencing infiltration and inflow (I/I-water) in wastewater systems using multivariate data analysis
Sola, Kristin Jenssen; Kvaal, Knut; Bjerkholt, Jarle Tommy; Lindholm, Oddvar G.; Ratnaweera, Harsha (Peer reviewed; Journal article, 2019)The share of infiltration and inflow water (I/I-water) in the wastewater network is influenced by several factors. The purpose of this study is to propose a method to investigate the relationship between different variables ... -
Intensifying rehabilitation of combined sewer systems using trenchless technology in combination with low impact development and green infrastructure
Kvitsjøen, Julia; Paus, Kim Aleksander Haukeland; Bjerkholt, Jarle Tommy; Fergus, T.; Lindholm, Oddvar G. (Peer reviewed; Journal article, 2021)Throughout Europe, there is a considerable need for investment in the upgrade of sewer systems – due to three main factors: ageing infrastructure, climate change and urban population growth. The need for investments is ... -
Pipeline Transportation of Livestock Waste Slurries - Rheological Properties and Effects of Air Injection
Bjerkholt, Jarle Tommy (Doctor scientiarum theses Agricultural University of Norway;1996:7, Doctoral thesis, 1996)Hovedmålet med det forskningsarbeidet som presenteres her var å bestemme strømningsegenskapene til bløtgjødsel fra gris og storfe. Videre har hensikten vært å bestemme hvilken virkning injeksjon av luft i væskestrømmen ... -
What effect does rehabilitation of wastewater pipelines have on the share of infiltration and inflow water (I/I-water)?
Sola, Kristin Jenssen; Bjerkholt, Jarle Tommy; Lindholm, Oddvar G.; Ratnaweera, Harsha (Peer reviewed; Journal article, 2021)Infiltration and inflow water (I/I-water) is a big challenge in sewage systems in many countries. I/I-water above an acceptable level indicates that the sewage system is not functioning properly. I/I-water leads to increased ...