Activated sludge models coupled to CFD simulations

• Type: Chapter or Part of a Book
• Date: 2012

Authors

Pereira, JP (Author) Other; Karpinska, A (Author) Other; Gomes, PJ (Author) Other; Martins, AA (Author) Other; Madalena M. Dias (Author) FEUP; José Carlos B. Lopes (Author) FEUP; Ricardo J. Santos (Author) FEUP

Book

Title: Single and Two-Phase Flows on Chemical and Biomedical Engineering

Pages: 153-173

ISBN: 9781608053476

Publisher: Bentham Science

Indexing

Scopus - 9 Citations

Other information

Authenticus ID: P-008-D60

DOI: 10.2174/978160805295011201010153

Abstract (EN): Wastewater treatment modelling combining hydrodynamics, mass transfer and kinetic issues remains one of the major goals of chemical engineering. The reactor design is frequently based on Activated Sludge Models (ASM) that describe the biological processes in an Activated Sludge (AS) process. The ASM are generally implemented on ideal models of chemical reactors that do not account for the actual hydrodynamics of the reactor. Nowadays, it is possible to obtain hydrodynamic information of an AS tank from computational fluid dynamic (CFD) simulations that provide information about the mass transfer in the flow field of the AS tank and enable determining the residence time distribution (RTD). This chapter focuses on the use of CFD data coupled to the state-of-the-art ASM1, and resumes the work developed by many researchers on this issue. The influence of the RTD on the results of the simulations using ASM1, is analyzed from the simulations of the ASM1 using various reactor models. A procedure is proposed for the coupling of the CFD simulations information with the ASM1 biological model.

Language: English

Type (Professor's evaluation): Scientific