title: The utilisation of engineered invert traps in the management of near bed solids in sewer networks.
abstract: Large existing sewers are considerable assets which wastewater utilities will require to operate for the foreseeable future to maintain health and the quality of life in cities. Despite their existence for more than a century there is surprisingly little guidance available to manage these systems to minimise problems associated with in-sewer solids. A joint study has been undertaken in the UK, to refine and utilise new knowledge gained from field data, laboratory results and Computational Fluid Dynamics (CFD) simulations to devise cost beneficial engineering tools for the application of small invert traps to localise the deposition of sediments in sewers at accessible points for collection. New guidance has been produced for trap siting and this has been linked to a risk-cost-effectiveness assessment procedure to enable system operators to approach in-sewer sediment management pro-actively rather than reactively as currently happens.
authors.affiliation: Department of Civil and Environmental Engineering, University of Bradford, West Yorkshire BD1 1DP, UK. R.Ashley@bradford.ac.uk
authors.forename: R M
authors.initials: RM
authors.lastname: Ashley
authors.forename: S J
authors.initials: SJ
authors.lastname: Tait
authors.forename: V R
authors.initials: VR
authors.lastname: Stovin
authors.forename: R
authors.initials: R
authors.lastname: Burrows
authors.forename: A
authors.initials: A
authors.lastname: Framer
authors.forename: A P
authors.initials: AP
authors.lastname: Buxton
authors.forename: D J
authors.initials: DJ
authors.lastname: Blackwood
authors.forename: A J
authors.initials: AJ
authors.lastname: Saul
authors.forename: J R
authors.initials: JR
authors.lastname: Blanksby
mesh_terms: D002947:Cities; D003362:Cost-Benefit Analysis; D004738:Engineering; D005160:Facility Design and Construction; D017408:Guidelines as Topic; D008962:Models, Theoretical; D012722:Sewage; D014865:Waste Disposal, Fluid / Q000379:methods*
chemical_list: D012722:Sewage