Effect of Mixed Liquor Volatile Suspended Solids on Membrane Fouling During Short and long-term Operation of Membrane Bioreactor
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 sub- merged MBR system w...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | México |
| Institución: | Universidad Nacional Autónoma de México |
| Repositorio: | Redalyc-UNAM |
| OAI Identifier: | oai:redalyc.org:83533766007 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=83533766007 |
| Access Level: | acceso abierto |
| Palabra clave: | Ingeniería membrane fouling Membrane bioreactor volatile suspended solid extracellular polymeric substances |
| Sumario: | 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 sub- merged 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 the hydraulic resistance of membranes followed a same trajectory with averages of 5.0E+12 m f membranes followed a same trajectory with averages of 5.0E+12 m The result showed that high biomass concentrations decreased to permeability due to a bio-layer formed in the membrane surface and high Extracellular Polymeric Sub- stance (EPS). |
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