Title

Effect of mixed liquor volatile suspended solids on membrane fouling during short and long-term operation of membrane bioreactor

Author

EDSON BALTAZAR ESTRADA ARRIAGA

PETIA MIJAYLOVA NACHEVA

LILIANA GARCIA SANCHEZ

Access level

Open Access

License

http://creativecommons.org/licenses/by-nc-nd/4.0

Subjects

Biorreactor de membrana - (AUTOR) Saturación de la membrana - (AUTOR) Sólidos suspendidos volátiles - (AUTOR) Sustancias poliméricas extracelulares - (AUTOR) BIOLOGÍA Y QUÍMICA - (CTI)

Summary or description

The aim of this study was to examine the impact of different Mixed Liquor Volatile Suspended Solids (MLVSS) concentrations on membrane fouling, in a submerged Membrane Bioreactor (MBR) at short and long-term MBR operation for wastewater treatment. Three laboratory-scale in a submerged MBR system were operated under critical flux, sub-critical flux, and an intermittent suction time and backwashing conditions. At short-term MBR operation with mixed liquors of 4,200 and 6,150 mg MLVSS L-1, the hydraulic resistance of membranes followed a same trajectory with averages of 5.0E+12 m-1, whereas for 7,940 mg MLVSS L-1, a high resistance of up to 1.7E+13 m-1 was obtained. The result showed that high biomass concentrations decreased to permeability due to a bio-layer formed in the membrane surface and high Extracellular Polymeric Substance.

Publisher

Universidad EAFIT

Publish date

2015

Publication type

Article

Information Resource

http://hdl.handle.net/20.500.12013/2043

Format

application/pdf

Source

Ingeniería y Ciencia (2256-4314), 11(21)

Language

Spanish

Source repository

Repositorio institucional del IMTA

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