Secondary clarifier inlet/outlet structures optimization by the use of CFD simulations.

Entity: Universitat Rovira i Virgili (URV)

Confidenciality: No

Education area(s): Mecànica de Fluïds Computacional

Title in different languages: Secondary clarifier inlet/outlet structures optimization by the use of CFD simulations.

Abstract: The present work studies the influence of the design of active sludge inlet structure (influent well) and treated water outlet structure (position and shape of effluent weir), in the performance of a secondary clarifier for waste water treatment. The study has been carried out through CFD simulations with the openFoam software, in which different combinations of input and output structures have been analysed. The obtained results show a great influence of these structures in the velocity fields and the solids distribution inside the clarifier. These structures have shown to be a key factor regarding clarifier performance, both in transport and extraction of sludge, as well as in suspended solids content in the effluent. Results have shown a great dependency of flow fields on sludge density and rheologic properties. Secondary

Subject: Enginyeria mecànica

Academic year: 2018-2019

Language: Anglès

Work's public defense date: 2019-09-12

Subject areas: Mechanical engineering

Student: Gómez Rey, Alberto

Department: Enginyeria Mecànica

Creation date in repository: 2019-10-14

TFM credits: 15

Keywords: CFD, openFoam, Secondary clarification

Title in original language: Secondary clarifier inlet/outlet structures optimization by the use of CFD simulations.

Access Rights: info:eu-repo/semantics/openAccess

Project director: Martorell Masip, Benjamí