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dc.contributor.authorSola, Kristin Jenssen
dc.contributor.authorBjerkholt, Jarle Tommy
dc.contributor.authorLindholm, Oddvar G.
dc.contributor.authorRatnaweera, Harsha
dc.identifier.citationSola, K. J., Bjerkholt, J. T., Lindholm, O. G. & Ratnaweera, H. (2020). Analysing consequences of infiltration and inflow water (I/I-water) using cost-benefit analyses. Water Science and Technology, 82(7), 1312-1326.en_US
dc.description.abstractThe 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 water quality in the municipality, wastewater is likely to be a major contributor. Infiltration and inflow water (I/I-water) leads to a number of unwanted consequences, of which direct discharge of untreated wastewater through overflow points is particularly important. In Aker municipality the portion of I/I-water is about 63%, while the goal is to achieve a level of about 30%. This study utilises a socio-economic cost-effectiveness analysis of measures to prevent sewer overflows into waterbodies. The most effective alternative identified in the analysis is a complete renovation of old pipes in combination with troubleshooting for faulty stormwater connections, when compared to alternatives considering upsizing/retention. I/I-water cost the municipality of Asker NOK34 million in 2017, when using a price of NOK16,434 for each kg of total phosphorus (Tot-P) let into the recipient water bodies. If the phosphorus cost is equal to or less than NOK17,806/kg Tot-P, then it will not be socio-economically justified to reduce I/I-water.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleAnalysing consequences of infiltration and inflow water (I/I-water) using cost-benefit analysesen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.rights.holder© 2020 The Authors.en_US
dc.source.journalWater Science and Technologyen_US

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal