Incorporation of the concept of microbial product formation into ASM3 and the modeling of a membrane bioreactor for wastewater treatment



Título del documento: Incorporation of the concept of microbial product formation into ASM3 and the modeling of a membrane bioreactor for wastewater treatment
Revista: Brazilian journal of chemical engineering
Base de datos: PERIÓDICA
Número de sistema: 000309072
ISSN: 0104-6632
Autores: 1



Instituciones: 1Hokkaido University, Department of Urban and Environmental Engineering, Sapporo, Hokkaido. Japón
Año:
Periodo: Dic
Volumen: 23
Número: 4
Paginación: 461-471
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés This paper proposes a modification of ASM3 in a way that takes into account the process of production and consumption of microbial products (MPs) in a submerged membrane bioreactor fed with the effluent of a particular precoagulation sedimentation unit. A comparative representation of the modeling results obtained with ASM3 and ASM1 is performed and it highlights the importance of considering the process of storage of organic substrate, including MPs, as a prior step to bacterial growth. In addition to the suspended solids and microorganisms, various soluble organic substances, which might be either undecomposed organic substances contained in the raw water or MPs, are assumed to be selectively retained within the bioreactor. The results show that the carbonaceous materials are more accurately estimated by ASM3, while ASM1 performs slightly better than ASM3 in the estimation of nitrate. The estimated MP concentration in the mixed liquor and permeate agrees with the experimental evidence, and as expected, MPs play a role in supplying organic substrate to heterotrophs in both ASM1 and ASM3
Disciplinas: Ingeniería
Palabras clave: Ingeniería ambiental,
Tratamiento de aguas residuales,
Biorreactores de membrana,
Productos microbianos,
Modelado
Keyword: Engineering,
Environmental engineering,
Waste water treatment,
Membrane bioreactors,
Microbial products,
Modeling
Texto completo: Texto completo (Ver HTML)