Solution of a heterogeneous modeling of a horizontal-flow anaerobic immobilized biomass (HAIB) reactor by the sequencing method

Author:

Cuel Maressa Fabiano1,Kwong Wu Hong1,Zaiat Marcelo2,Foresti Eugenio2

Affiliation:

1. Departamento de Engenharia Química, Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luís (SP-310), Km 235, São Carlos 13565-905, SP, Brazil.

2. Departamento de Hidráulica e Saneamento, Escola de Engenharia de São Carlos (EESC), Universidade de São Paulo (USP), Av. Trabalhador São-carlense 400, São Carlos 13566-590, SP, Brazil.

Abstract

A modeling study was completed to develop a methodology that combines the sequencing and finite difference methods for the simulation of a heterogeneous model of a tubular reactor applied in the treatment of wastewater. The system included a liquid phase (convection–diffusion–transport) and a solid phase (diffusion reaction) that was obtained by completing a mass balance in the reactor and in the particle, respectively. The model was solved using a pilot-scale horizontal-flow anaerobic immobilized biomass (HAIB) reactor to treat domestic sewage, with the concentration results compared with the experimental data. A comparison of the behavior of the liquid phase concentration profile and the experimental results indicated that both the numerical methods offer a good description of the behavior of the concentration along the reactor. The advantage of the sequencing method over the finite difference method is that it is easier to apply and requires less computational time to model the dynamic simulation of outlet response of HAIB.

Publisher

Canadian Science Publishing

Subject

General Environmental Science,Civil and Structural Engineering

Reference15 articles.

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4. Froment, G.F., and Bischoff, K.B. 1990. Chemical reactor analysis and design. 2nd ed. John Wiley & Sons, New York.

5. Perry, R.H., and Chilton, C.C. 1985. Chemical Engineers Handbook. 50th ed. McGraw-Hill, New York.

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