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dc.contributor.authorKvitsjøen, Julia
dc.contributor.authorPaus, Kim Aleksander Haukeland
dc.contributor.authorBjerkholt, J.T.
dc.contributor.authorFergus, T.
dc.contributor.authorLindholm, Oddvar G.
dc.date.accessioned2022-03-24T13:06:43Z
dc.date.available2022-03-24T13:06:43Z
dc.date.created2021-08-06T18:04:03Z
dc.date.issued2021
dc.identifier.citationWater Science and Technology. 2021, 83 (12), 2947-2962.
dc.identifier.issn0273-1223
dc.identifier.urihttps://hdl.handle.net/11250/2987399
dc.description.abstractThroughout 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 expected to grow significantly in the years ahead. Trenchless rehabilitation (no-dig) of sewer pipelines is a cost-efficient and environmental friendly method for upgrading existing pipelines with sufficient capacity. This study examines the possibility of applying no-dig to combined sewer systems (CS) with insufficient capacity. In this study, a concept assessment methodology that combines the analytical approaches from stormwater and sewer system assessments is presented. The methodology was tested on a case area that was part of an environmental project in Oslo, Norway. Three alternative concepts were examined; A0: no-dig and low impact development (LID), A1: no-dig, LID and green infrastructure (GI), and A2: CS up-sizing using open-cut methods. The study concludes that CS with insufficient capacity can be rehabilitated using no-dig if LID and GI. The combination of no-dig and LID reduces costs considerably but does involve the risk of damages from uncontrolled surface runoff. The main risk-reduction measure is the development of GI as an integrated stormwater management system that requires cross-sector collaboration within municipalities.
dc.language.isoeng
dc.titleIntensifying rehabilitation of combined sewer systems using trenchless technology in combination with low impact development and green infrastructure
dc.typePeer reviewed
dc.typeJournal article
dc.description.versionpublishedVersion
dc.source.pagenumber2947-2962
dc.source.volume83
dc.source.journalWater Science and Technology
dc.source.issue12
dc.identifier.doi10.2166/wst.2021.198
dc.identifier.cristin1924502
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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