Show simple item record

dc.contributor.advisorMcCann, Brian, Dr.en
dc.contributor.authorLyons, P. J.en
dc.date.accessioned2017-03-21T16:14:04Z
dc.date.available2017-03-21T16:14:04Z
dc.date.issued2004
dc.identifier.citationLyons, P. J. (2004) Rehabilitation of existing sewerage infrastructure. M. Sc., Institute of Technology, Sligo.en
dc.identifier.otherMScen
dc.identifier.urihttps://research.thea.ie/handle/20.500.12065/1528
dc.description.abstractThis dissertation has been produced for the research section of the Environmental Protection MSc, from Sligo Institute of Technology. The overall objective of the study was to highlight Infiltration and Exfiltration in existing sewerage infrastructure, associated problems, investigation techniques, rehabilitation techniques and a case study. As part of efficient treatment of sewage, separation of surface water and infiltration water from sewer networks is advantageous. Therefore, a high priority should be given to achieving watertight sewers. When sewers are sealed, as well as efficient treatment, exfiltration (leakage) is reduced which decreases the risk of groundwater contamination. Rehabilitation of sewer lines can be used in many cases to achieve water tightness using trenchless technology, which can avoid construction and installation works, which would cause inconvenience to local residents and business people, especially in urban areas. From investigations undertaken for the purposes of this report, it was found that the traditional method of installing new sewer networks or replacing existing pipes with a cut trench system is still the most common form of infrastructure upgrading. However, some local authorities, together with Civil Engineering Consultants have started to incorporate sewer rehabilitation as part of their overall designs. The Castlebar Environs Sewerage Scheme, included an existing sewer rehabilitation project, as part of the total contract. It was found that when old, damaged or leaking sewer pipes were rehabilitated it reduced groundwater infiltration, which in turn reduced the flows into the sewage treatment plant. This dissertation gives examples of where rehabilitation may be considered, where it has been used and the advantages associated with his method of maintenance.en
dc.formatPdfen
dc.language.isoenen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectSeepage.en
dc.subjectSewage disposal plants -- Maintenance and repair.en
dc.titleRehabilitation of existing sewerage infrastructureen
dc.typeMaster Thesis (taught)en
dc.publisher.institutionInstitute of Technology, Sligo.en
dc.rights.accessCreative Commons Attribution-NonCommercial-NoDerivsen
dc.subject.departmentDept of Environmental Science, ITSen


Files in this item

Thumbnail
Thumbnail
Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record

http://creativecommons.org/licenses/by-nc-nd/4.0/
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc-nd/4.0/